555 Type, Timer/Oscillator (Single) IC 2.1MHz 8-PDIP Like the NE555, the TLC555 has a trigger level equal to approximately one-third of the supply voltage and a threshold level equal to approximately two-thirds of the supply voltage. These levels can be altered by use of the control voltage terminal (CONT). When the trigger input (TRIG) falls below the trigger level, the flip-flop is set and the output goes high. If TRIG is above the trigger level and the threshold input (THRES) is above the threshold level, the flip-flop is reset and the output is low. The reset input (RESET) can override all other inputs and can be used to initiate a new timing cycle. If RESET is low, the flip-flop is reset and the output is low. Whenever the output is low, a low-impedance path is provided between the discharge terminal (DISCH) and GND. All unused inputs must be tied to an appropriate logic level to prevent false triggering. • Very low power consumption: – 1mW typical at VDD = 5V • Capable of operation in astable mode • CMOS output capable of swinging rail to rail • High output current capability – Sink: 100mA typical – Source: 10mA typical • Output fully compatible with CMOS, TTL, and MOS • Low supply current reduces spikes during output transitions • Single-supply operation from 2V to 15V • Functionally interchangeable with the NE555; has same pinout • ESD protection exceeds 1000V per ANSI/ESDA/ JEDEC JS-001 • Available in Q-temp automotive – High-reliability automotive applications – Configuration control and print support – Qualification to automotive standards #CommonPartsLibrary #IntegratedCircuit

555 Type, Timer/Oscillator (Single) IC 2.1MHz 8-PDIP The TLC555 is a CMOS monolithic timing circuit. The timer is fully compatible with CMOS, TTL, and MOS logic and operates at frequencies up to 2MHz. Because of a high input impedance, this device supports smaller timing capacitors than those supported by the NE555 or LM555. As a result, more accurate time delays and oscillations are possible. Power consumption is low across the full range of power-supply voltage. • Very low power consumption: – 1mW typical at VDD = 5V • Capable of operation in astable mode • CMOS output capable of swinging rail to rail • High output current capability – Sink: 100mA typical – Source: 10mA typical • Output fully compatible with CMOS, TTL, and MOS • Low supply current reduces spikes during output transitions • Single-supply operation from 2V to 15V • Functionally interchangeable with the NE555; has same pinout • ESD protection exceeds 1000V per ANSI/ESDA/ JEDEC JS-001 • Available in Q-temp automotive – High-reliability automotive applications – Configuration control and print support – Qualification to automotive standards #CommonPartsLibrary #IntegratedCircuit

The Broadcom® 6N137, HCPL-26xx/06xx/4661, HCNW137/26x1 are optically coupled gates that combine a GaAsP light emitting diode and an integrated high gain photo detector. An enable input allows the detector to be strobed. The output of the detector IC is an open collector Schottky-clamped transistor. The internal shield provides a guaranteed common mode transient immunity specification up to 15,000 V/µs at Vcm = 1000V. This unique design provides maximum AC and DC circuit isolation while achieving TTL compatibility. The optocoupler AC and DC operational parameters are guaranteed from – 40°C to +85°C allowing trouble-free system performance.  15 kV/µs minimum Common Mode Rejection (CMR) at VCM= 1 kV for HCNW2611, HCPL-2611, HCPL-4661, HCPL-0611, HCPL-0661  High speed: 10 MBd typical  LSTTL/TTL compatible  Low input current capability: 5 mA  Guaranteed AC and DC performance over temperature: –40°C to +85°C  Available in 8-Pin DIP, SOIC-8, widebody packages  Strobable output (single channel products only)  Safety approval – UL recognized – 3750 Vrms for 1 minute and 5000 Vrms for 1 minute per UL1577 CSA approved (5000 Vrms/1 Minute rating is for HCNW137/26X1 and Option 020 [6N137, HCPL-2601/11/30/31, HCPL-4661] products only) – IEC/EN/DIN EN 60747-5-5 approved with:  VIORM = 567 Vpeak for 06xx Option 060  VIORM = 630 Vpeak for 6N137/26xx Option 060  VIORM =1414 Vpeak for HCNW137/26x1  MIL-PRF-38534 hermetic version available (HCPL56xx/66xx) #CommonPartsLibrary #Isolator #Optocoupler

SN74HCT245 / SN54HCT245 – octal bus transceiver with 3-state outputs designed for bidirectional data communication between two 8-bit buses. Features direction control (DIR) for selecting data flow direction and output enable (OE) for bus isolation. TTL-compatible inputs, low power consumption, and high-current outputs make it suitable for interfacing microcontrollers, memory devices, processors, FPGAs, LCD modules, industrial controllers, and digital communication systems. Operates from a 4.5 V to 5.5 V supply voltage and supports asynchronous data transfer. Search Keywords: SN74HCT245, SN54HCT245, HCT245, Octal Bus Transceiver, Bidirectional Bus Transceiver, 8 Bit Bus Buffer, 3 State Buffer, Tri State Buffer, TTL Compatible Logic IC, Data Bus Interface, Logic Level Buffer, Microcontroller Interface, Memory Bus Driver, Digital Logic IC, Bus Isolation IC, Direction Controlled Buffer, Parallel Data Interface, Industrial Control Logic, FPGA Interface, Processor Bus Transceiver Hashtags: #SN74HCT245 #SN54HCT245 #HCT245 #BusTransceiver #OctalBusTransceiver #TriStateBuffer #LogicIC #TTLCompatible #DigitalLogic #BusBuffer #MicrocontrollerInterface #FPGA #EmbeddedSystems #MemoryInterface #IndustrialElectronics #DataBus #ElectronicsDesign #PCBDesign #HardwareDesign #TexasInstruments

The MAX485 TTL to RS-485 Interface Module allows MCUs to use the RS-485 differential signaling for robust long distance serial communications.

Timer ICM7555IPA+ DIP-8_L10.1-W6.3-P2.54-LS7.6-BL LCSC Part Number: C1520201 ICM7555 / ICM7556 CMOS Precision Timer – low-power general-purpose timer IC compatible with the classic 555 timer architecture. Available as a single timer (ICM7555) or dual timer (ICM7556). Designed for accurate timing, pulse generation, pulse-width modulation (PWM), frequency generation, delay circuits, oscillators, and sequential timing applications. Features ultra-low supply current, wide operating voltage range (2 V to 18 V), TTL compatibility, adjustable duty cycle, and improved CMOS performance compared to standard bipolar 555 timers. Search Keywords: ICM7555, ICM7556, CMOS 555 Timer, Precision Timer IC, Low Power Timer, General Purpose Timer, PWM Generator, Pulse Generator, Oscillator IC, Delay Timer, Monostable Multivibrator, Astable Multivibrator, Frequency Generator, Timing Circuit, CMOS Timer, Analog Timer IC, Low Power Oscillator, Dual Timer IC, Single Timer IC, 555 Compatible Timer Hashtags: #ICM7555 #ICM7556 #CMOS555 #555Timer #TimerIC #PrecisionTimer #PulseGenerator #PWMGenerator #OscillatorIC #FrequencyGenerator #DelayCircuit #Monostable #Astable #CMOS #LowPowerElectronics #AnalogIC #EmbeddedSystems #ElectronicsDesign #CircuitDesign #PCBDesign

Multiplexer/Demultiplexer 16 x 1:2 56-SSOP The SN74CBT16390 is a 16-bit to 32-bit switch used in applications in which two separate data paths must be multiplexed onto, or demultiplexed from, a single path. This device can be used for memory interleaving, in which two different banks of memory must be addressed simultaneously. This device also can be used to connect or isolate the PCI bus to one or two slots simultaneously. Two output enables (OE1 and OE2) control the data flow. When OE1 is low, A port is connected to 1B port. When OE2 is low, A port is connected to 2B port. When both OE1 and OE2 are low, the A port is connected to both 1B and 2B ports. The control inputs can be driven with a 5-V CMOS, 5-V TTL, or an LVTTL driver. Key Features 16-bit to 32-bit FET multiplexer/demultiplexer bus switch Operates from 4.5 V to 5.5 V Low ON-state resistance for high-speed signal switching Near-zero propagation delay through the switch Dual output-enable (OE1, OE2) controls for flexible routing TTL-compatible control inputs Supports memory interleaving and PCI bus applications Low power consumption ESD protection compliant with JESD22 standards Operating temperature range: −40°C to +85°C Available in a 56-pin SSOP (DL) package #BusSwitch #Multiplexer #Demultiplexer #Widebus #DigitalLogic #HighSpeedInterface #MemoryInterleaving #PCIBus #TexasInstruments #SN74CBT16390 #SSOP56

1.8432 MHz XO (Standard) TTL Oscillator 5V 14-DIP, 4 Leads (Full Size, Metal Can) 1.8432 MHz 5V DIP-4 oscillator The ECS-100AX-018 is a 1.8432 MHz crystal-based TTL clock oscillator from ECS Inc. designed to provide a stable and accurate clock source for digital systems. It operates from a 5 V supply and delivers a TTL-compatible output, making it suitable for microprocessors, microcontrollers, UART/serial communication circuits, industrial controllers, and legacy digital logic applications. The device is housed in a 14-pin DIP metal can package (4 active leads) for through-hole PCB mounting. Key Features 1.8432 MHz fixed output frequency Crystal-based XO (Crystal Oscillator) architecture 5 V supply voltage TTL-compatible output Frequency stability of ±100 ppm Low maximum supply current of 15 mA Through-hole 14-DIP (4-lead metal can) package Operating temperature range: 0°C to +70°C Suitable for clock generation in digital and communication systems RoHS compliant #ECSInc #ClockOscillator #CrystalOscillator #TTL #1_8432MHz #5V #ThroughHole #DIP14 #TimingDevice #DigitalClock #EmbeddedSystems #IndustrialElectronics #PCBDesign

Arithmetic Logic Unit IC 24-PDIP The SN74LS181N is a high-speed, 4-bit arithmetic logic unit (ALU) designed for digital computing and logic operations in microprocessor, computer, and embedded system applications. It integrates a full set of arithmetic and logical functions, including addition, subtraction, AND, OR, XOR, and comparison operations, in a single package. The device features fast switching times, TTL-compatible inputs, and outputs suitable for cascading multiple units for extended-bit operations. Its robust design ensures reliable digital processing across a wide operating voltage and temperature range, making it ideal for educational computing systems, programmable logic devices, industrial controllers, and digital signal processing circuits. Engineering Specifications Manufacturer: Texas Instruments Part Number: SN74LS181N Device Type: 4-Bit Arithmetic Logic Unit (ALU) Logic Family: LS-TTL (Low-Power Schottky TTL) Functionality: Arithmetic and Logical Operations (Add, Subtract, AND, OR, XOR, Compare) Data Width: 4 Bits Inputs: TTL-Compatible Logic Inputs Outputs: TTL-Compatible Logic Outputs Carry Handling: Lookahead Carry Support for High-Speed Operation Propagation Delay: Fast Switching for Digital Computation Power Supply: Standard TTL Supply Voltage Package Type: Dual In-Line Package (DIP) Mounting Style: Through-Hole Operating Temperature Range: Commercial/Industrial Grade RoHS Compliant: Yes Applications: Digital Computing, Educational Microprocessor Systems, Industrial Control, Programmable Logic Circuits, Digital Signal Processing, Embedded Computing, Logic Design Learning Kits Key Features 4-bit wide ALU with full arithmetic and logic operations TTL-compatible inputs and outputs for easy integration Fast switching speed for high-performance digital systems Supports cascading for multi-bit operations Lookahead carry capability for efficient addition/subtraction Robust and reliable operation across standard voltage and temperature ranges Compact dual in-line package suitable for through-hole PCB mounting Ideal for embedded systems, educational projects, and industrial logic applications #SN74LS181N #TexasInstruments #ALU #ArithmeticLogicUnit #DigitalElectronics #TTL #LS_TTL #DigitalComputing #EmbeddedSystems #IndustrialElectronics #LogicDesign #MicroprocessorInterface #ProgrammableLogic #SignalProcessing #ThroughHole #ElectronicComponents #PCBDesign #HighSpeedLogic #DigitalCircuit

Video Separator IC NTSC, PAL, SECAM 8-PDIP Package # LM1881N/NOPB Engineering Specifications **General Description** The LM1881N/NOPB is a precision video synchronization separator integrated circuit manufactured by Texas Instruments. It is designed to extract timing information from composite video signals and generate synchronization outputs required for video processing, display control, video capture, and television signal applications. The device separates composite sync, vertical sync, burst or back-porch timing, and odd/even field information from standard analog video formats. It operates with both monochrome and color composite video signals and is commonly used in video synchronization systems, frame grabbers, video overlays, video switching equipment, and display synchronization circuits. The integrated circuit simplifies video timing recovery by eliminating the need for complex discrete-component sync separation circuits. Its low-power bipolar architecture provides reliable operation across a wide range of video applications while maintaining accurate synchronization detection. **Engineering Specifications** **Manufacturer:** Texas Instruments **Manufacturer Part Number:** LM1881N/NOPB **Component Type:** Video synchronization separator integrated circuit **Function:** Composite video sync extraction and timing separation **Technology:** Bipolar analog integrated circuit **Video Signal Compatibility:** Composite video input **Supported Video Formats:** NTSC, PAL and SECAM composite video systems **Input Signal Type:** Composite video **Composite Sync Output:** Available **Vertical Sync Output:** Available **Burst or Back-Porch Output:** Available **Odd/Even Field Output:** Available **Synchronization Detection:** Automatic extraction of video timing signals **Power Supply Configuration:** Single-supply operation **Supply Voltage Range:** Wide operating voltage range suitable for video processing systems **Power Consumption:** Low-power operation **Output Configuration:** TTL and CMOS compatible synchronization outputs **Input Coupling:** AC-coupled composite video input **Noise Immunity:** High immunity to video signal disturbances and noise **Signal Processing Capability:** Composite sync, vertical sync and field identification extraction **Applications Compatibility:** Video displays, frame grabbers, video processors, video switching systems and synchronization controllers **Operating Temperature Range:** Commercial temperature range **Package Type:** Plastic dual in-line package **Package Configuration:** Through-hole mounting package **Pin Configuration:** Standard DIP package layout **Mounting Style:** Through-hole **Environmental Compliance:** Lead-free and RoHS compliant NOPB version **Reliability Features:** Stable synchronization extraction and accurate timing recovery **Typical Applications** Video synchronization circuits Video capture equipment Frame grabber systems Television signal processing Video overlay generators Video switching equipment Security and surveillance video systems Display synchronization controllers Industrial video monitoring equipment Embedded video processing systems #LM1881N #LM1881NNOPB #TexasInstruments #VideoSyncSeparator #CompositeVideo #VideoProcessing #EmbeddedSystems #SignalProcessing #FrameGrabber #VideoElectronics #AnalogIC #ElectronicComponents #EngineeringSpecifications #VideoSynchronization

# ADC0804LCN/NOPB Engineering Specifications **General Description** The ADC0804LCN/NOPB is a CMOS successive-approximation analog-to-digital converter manufactured by Texas Instruments. It converts a differential analog input signal into an eight-bit digital output and is designed for direct connection to microprocessors through a parallel data interface. The device uses a differential potentiometric-ladder architecture to improve common-mode rejection and allow the analog zero-input level to be offset. Its adjustable reference input permits smaller analog voltage spans to use the converter’s full resolution. Tri-state output latches allow direct connection to a processor data bus without additional interface logic. The converter can operate as a microprocessor-controlled device or as a standalone, free-running converter. An integrated clock generator allows operation using an external resistor-capacitor network, although an external clock signal may also be used. **Engineering Specifications** **Manufacturer:** Texas Instruments **Manufacturer Part Number:** ADC0804LCN/NOPB **Component Type:** Analog-to-Digital Converter **Converter Architecture:** Successive Approximation Register **Resolution:** Eight bits **Number of Channels:** One **Input Configuration:** Differential analog input **Analog Input Range:** Zero volts to five volts with a five-volt supply **Supply Voltage Range:** Four and one-half volts to six and three-tenths volts **Typical Supply Voltage:** Five volts **Reference Type:** External, supply-based or ratiometric reference **Reference Input:** Adjustable VREF divided-by-two input **Digital Interface:** Eight-bit parallel interface **Microprocessor Compatibility:** Directly compatible with common eight-bit microprocessors **Conversion Time:** Approximately one hundred microseconds **Maximum Sampling Rate:** Approximately ten kilosamples per second **Total Unadjusted Error:** Plus or minus one least significant bit **Digital Outputs:** Latched tri-state outputs **Logic Compatibility:** TTL and MOS-compatible inputs and outputs **Clock Configuration:** Integrated clock generator with external resistor-capacitor timing or external clock input **Operating Modes:** Processor-controlled, standalone or continuous free-running operation **Operating Temperature Range:** Zero degrees Celsius to seventy degrees Celsius **Package Type:** Twenty-pin plastic dual in-line package **Mounting Style:** Through-hole mounting **Package Width:** Standard three-tenths-inch DIP format **Environmental Classification:** Lead-free and RoHS-compliant NOPB version **Lifecycle Status:** Obsolete and generally not recommended for new production designs **Typical Applications** Suitable for sensor signal conversion, temperature-monitoring systems, voltage measurement, transducer interfaces, embedded control systems, laboratory equipment, educational electronics projects and general-purpose data-acquisition circuits. #ADC0804LCN #ADC0804 #TexasInstruments #AnalogToDigitalConverter #ADC #DataAcquisition #EmbeddedSystems #ElectronicsEngineering #IntegratedCircuit #MicrocontrollerProjects #ElectronicComponents 8 Bit Analog to Digital Converter 1 Input 1 SAR 20-PDIP https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/721/ADC080x.pdf

Bipolar (BJT) Transistor Array 8 NPN Darlington 50V 500mA Surface Mount 18-SOIC The ULN2803ADW is a high-voltage, high-current Darlington transistor array designed for interfacing low-level digital logic circuits with high-power loads. The device integrates eight NPN Darlington pairs with common-emitter outputs and suppression diodes for inductive load driving. It is commonly used in relay drivers, LED matrix control, solenoid actuation, motor drivers, lamp control, and industrial automation interfaces. The integrated clamp diodes enable direct driving of inductive loads without requiring additional external protection circuitry. The input stage is compatible with standard TTL and CMOS logic levels, making the device suitable for microcontroller, FPGA, and processor-based systems. The ULN2803ADW provides compact multi-channel switching capability in a wide-body SOIC surface-mount package optimized for automated assembly and high-density PCB layouts. Key Features Eight-channel NPN Darlington transistor array High-current sink driver outputs Integrated flyback suppression diodes TTL and CMOS compatible inputs Open-collector outputs Suitable for inductive and resistive loads High output voltage capability Parallel output operation supported for increased current handling Wide operating voltage range Surface-mount SOIC wide-body package Industrial and embedded control application support Electrical Characteristics Darlington transistor output configuration High DC current gain Low input current requirement Common-cathode clamp diode structure Open-collector output topology Logic-level input compatibility High-voltage output tolerance Multi-channel simultaneous switching support Applications Relay and solenoid drivers Stepper motor interfaces LED and lamp driving Industrial automation systems PLC output stages Embedded control systems Printer and actuator control Automotive electronics Logic buffer and level shifting applications Package Information Package Type: SOIC Wide Body Mounting Type: Surface Mount Multi-pin integrated driver package RoHS compliant options available #commonpartslibrary #integratedcircuit #driveric #darlingtonarray #powermanagement #industrialelectronics #embeddedhardware #relaydriver #motorcontrol #automationelectronics

16 MHz XO (Standard) HCMOS, TTL Oscillator 5V 8-DIP, 4 Leads (Half Size, Metal Can) #commonpartslibrary #crystal #oscillator

20 MHz XO (Standard) HCMOS, TTL Oscillator 5V 8-DIP, 4 Leads (Half Size, Metal Can) #commonpartslibrary #crystal #oscillator

High Speed Optocoupler, TTL Compatible, CTR 18%, SMDIP8 High Speed Optocoupler SMDIP*W9.53mm*

High Speed Optocoupler, TTL Compatible, CTR 18%, DIP8 High Speed Optocoupler DIP*W7.62mm*

Comparator General Purpose CMOS, DTL, ECL, MOS, Open-Collector, TTL 14-SO #commonpartslibrary #integratedcircuit #linearcomparator

Comparator General Purpose CMOS, Push-Pull, TTL 8-SOIC #commonpartslibrary #integratedcircuit #comparator

The 74HC164 and 74HCT164 from Nexperia are 8-bit serial-in, parallel-out shift registers designed for a wide array of applications ranging from signal processing to data management systems. These components feature two serial data inputs (DSA and DSB) and eight parallel data outputs (Q0 to Q7), supporting versatile data handling by allowing serial data entry through either input pin. They operate on a supply voltage range of 2.0 to 6.0 V, ensuring compatibility with both CMOS and TTL levels—specifically, the 74HC164 operates at CMOS level while the 74HCT164 is designed for TTL level inputs. Key functionalities include gated serial data inputs, an asynchronous master reset for clearing the register, and a clock input that triggers data shifting on LOW-to-HIGH transitions. Manufactured by Nexperia, a leader in semiconductor solutions, these components exhibit high noise immunity and low power dissipation, making them ideal for high-reliability applications. Furthermore, they come in a variety of packages including SO14, TSSOP14, and DHVQFN14, catering to diverse design requirements. The 74HC164 and 74HCT164 are specified to operate in a broad temperature range, ensuring reliable performance in both commercial and industrial environments. With ESD protection exceeding 2000 V according to the HBM JESD22-A114F and MM JESD22-A115-A standards exceeding 200 V, these shift registers offer a robust solution for serial-to-parallel data conversion needs.

Comparator Differential CMOS, MOS, Open-Collector, TTL 14-SOIC (Symbol layout matches pinout) #Integratedcircuit #Linearcomparator

30MHz XO (Standard) TTL Oscillator 5V 14-DIP, 4 Leads (Full Size, Metal Can) #CommonPartsLibrary #Crystal #Oscillator #Resonator #ECS-100X

4 MHz XO (Standard) HCMOS, TTL Oscillator 5V 8-DIP, 4 Leads (Half Size, Metal Can) #commonpartslibrary #crystal #oscillator

8-Channel Source Driver, TTL DTL, PMOS or CMOS compatible, 500mA 50V output, SOIC-20W #CommonPartsLibrary #IntegradedCircuits #PowerManagement #PowerDistributionSwitches #LoadDrivers #A2982

Comparator General Purpose CMOS, DTL, ECL, MOS, Open-Collector, TTL 8-SOIC #commonpartslibrary #integratedcircuit #comparator

Comparator General Purpose CMOS, Complementary, TTL 8-SOIC