Use this template if you're planning to get your 1 to 2-layer board manufactured in JLCPCB. It has the via min/max and trace width constraints already baked as global rules. #project-template #template #manufacturer-design-rules

The NE555 devices are precision timing circuits capable of producing accurate time delays or oscillation. In time-delay or monostable operating modes, the timed interval is controlled by a single external resistor and capacitor network. In the astable mode of operation, the frequency and duty cycle are controlled independently with two external resistors and a single external capacitor. Each timer 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 pin (CONT). When the trigger input (TRIG) is less than the trigger level, the flip-flop is set and the output goes high. If TRIG is greater than the trigger level and the threshold input (THRES) is greater than the threshold level, the flip-flop is reset and the output is low. The reset input (RESET) overrides all other inputs and is 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 lowimpedance path is provided between the discharge pin (DISCH) and the ground pin (GND). Tie all unused inputs to an appropriate logic level to prevent false triggering. The output circuit is capable of sinking or sourcing current up to 200mA. Operation is specified for supplies of 5V to 15V. With a 5V supply, output levels are compatible with TTL inputs. Features - Timing from microseconds to hours - Astable or monostable operation - Adjustable duty cycle - TTL-compatible output can sink or source up to 200mA - On products compliant to MIL-PRF-38535, all parameters are tested unless otherwise noted. Applications - Pulse-shaping circuits - Missing-pulse detectors - Pulse-width modulators - Pulse-position modulators - Sequential timers - Pulse generators -F requency dividers - Industrial controls

555 Type, Timer/Oscillator (Single) IC 100kHz 8-PDIP NE555 DIP-8 through hole The NE555P is a classic and widely used precision timer IC manufactured by companies like Texas Instruments and others. It belongs to the popular 555 timer family and is designed for generating accurate time delays, oscillations, and pulse signals. The “P” variant refers to the PDIP (Plastic Dual In-line Package), making it ideal for through-hole mounting, breadboarding, and prototyping. NE555P PDIP-8 timer Internally, the NE555P consists of: Two comparators A flip-flop A discharge transistor A voltage divider network These blocks allow flexible configuration for timing and waveform generation. Key Features Timing & Operation Modes Monostable mode (one-shot pulse generation) Astable mode (continuous oscillator) Bistable mode (flip-flop operation) Electrical Characteristics Supply voltage range: 4.5V to 16V Output can source or sink up to 200 mA Adjustable duty cycle Performance High timing accuracy and stability Timing range from microseconds to hours (depends on external R and C) Temperature-stable operation Package & Usability 8-pin DIP (through-hole) package Easy to use for: Breadboards DIY electronics Educational projects Common Applications LED flashers and blinkers Pulse generation Time delay circuits PWM control (e.g., dimming LEDs, motor speed control) Tone/sound generation #Timer #commonpartslibrary

555 Type, Timer/Oscillator (Single) IC 2.1MHz 8-SOIC The TLC555IDR is a low-power CMOS timer device designed as a functional replacement for the standard bipolar 555 timer while providing significantly reduced supply current and improved operating efficiency. The device supports both astable and monostable operating modes and is commonly used for timing generation, pulse shaping, oscillation, PWM generation, delay circuits, and frequency generation applications. The CMOS architecture enables low power consumption, rail-to-rail output capability, and stable timing performance over a wide operating voltage range. The device is suitable for battery-powered systems, portable electronics, industrial controls, instrumentation, consumer products, and embedded electronic designs. The TLC555IDR is supplied in a compact SOIC surface-mount package intended for automated PCB assembly and space-constrained applications. Electrical Characteristics CMOS low-power timer architecture Functional equivalent to standard 555 timer devices Wide operating supply voltage range Low quiescent supply current High input impedance Rail-to-rail output swing capability Stable threshold and trigger levels Compatible with TTL and CMOS logic levels Capable of astable and monostable operation Adjustable duty cycle and frequency operation High output drive capability for direct interfacing Low noise and improved switching performance compared to bipolar 555 timers Functional Features Precision timing generation Oscillator and clock generation Pulse-width modulation support One-shot pulse generation Delay timer implementation Missing pulse detection Frequency divider implementation Sequential timing control LED flashing and tone generation PWM motor and power control applications Package Information Surface-mount SOIC package Standard tape-and-reel packaging format Compact footprint for automated assembly RoHS compliant device construction Environmental and Operating Conditions Industrial operating temperature range ESD protection handling required Suitable for commercial and industrial embedded systems Designed for low-power electronic applications Typical Applications Timer circuits Pulse generators Oscillators PWM controllers LED flashers Alarm and tone generators Frequency generators Power management timing Embedded control systems Portable battery-powered electronics #commonpartslibrary #integratedcircuit #timer #oscillator

555 IC Turned Into A Clock Circuit. ( Astable )

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

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