Digital Potentiometer 10k Ohm 4 Circuit 257 Taps I2C Interface 20-TSSOP # Engineering Specification ## Product Name MCP4461-103E/ST ## General Description MCP4461-103E/ST is a non-volatile digital potentiometer integrated circuit designed to provide electronically programmable resistance adjustment for analog and mixed-signal applications. The device enables precise digital control of resistance values through a serial communication interface, eliminating the need for manual potentiometer adjustments and enhancing system automation capabilities. The component integrates multiple resistor networks, non-volatile memory, and digital control logic within a compact package, making it suitable for signal conditioning, gain adjustment, calibration, offset trimming, volume control, and configuration management applications. The design supports reliable operation in embedded systems, industrial electronics, instrumentation equipment, communication devices, and consumer products requiring programmable analog control. The device is optimized for ease of integration, low power consumption, repeatable performance, and long-term reliability. Non-volatile memory functionality allows resistance settings to be retained during power interruptions, supporting consistent system behavior and simplified startup configuration. ## Functional Requirements ### Digital Resistance Control The device shall provide programmable resistance adjustment through a digital communication interface. ### Non-Volatile Memory Operation The device shall retain programmed resistance settings when power is removed and restore stored values upon power-up. ### Multi-Channel Adjustment The device shall support independent control of multiple resistance channels for flexible system configuration. ### Analog Signal Conditioning The device shall support use in gain control, calibration, bias adjustment, offset correction, and signal tuning applications. ## Electrical Requirements ### Power Supply Compatibility The device shall operate from standard low-voltage electronic power supply rails suitable for embedded and industrial systems. ### Digital Communication The device shall support serial communication for configuration, programming, and control of internal resistance networks. ### Resistance Network Performance The device shall provide repeatable and stable resistance adjustment characteristics throughout normal operating conditions. ### Low Power Operation The device shall minimize power consumption while maintaining functional performance and memory retention capability. ### Noise and Signal Integrity The design shall support accurate analog signal processing with minimal impact on system performance. ## Mechanical Requirements ### Package Construction The component shall be supplied in a surface-mount package suitable for automated PCB assembly processes. ### Board Integration The device shall support standard printed circuit board mounting practices and electronic manufacturing workflows. ### Structural Reliability The package shall maintain electrical and mechanical integrity during handling, assembly, and operational service. ## Environmental Requirements ### Operating Environment The device shall operate reliably within environmental conditions commonly encountered in commercial and industrial electronic equipment. ### Storage Conditions The component shall maintain functional and physical integrity during storage, transportation, and inventory management activities. ### Environmental Robustness The design shall support stable operation under expected temperature and humidity variations within specified application environments. ## Quality Requirements ### Reliability The device shall provide consistent long-term performance with stable resistance characteristics and memory retention capability. ### Verification Electrical functionality, communication performance, memory operation, and resistance adjustment behavior shall be validated through applicable testing procedures. ### Compliance The product shall conform to relevant semiconductor manufacturing, quality assurance, and electronic component standards. ## Documentation Requirements Technical documentation shall include device functionality, communication interface requirements, programming guidelines, application recommendations, electrical characteristics, package information, and reliability considerations. ## Classification Tags #MCP4461 #MCP4461103EST #DigitalPotentiometer #NonVolatileMemory #IntegratedCircuit #ICComponent #AnalogElectronics #MixedSignalDesign #SignalConditioning #GainControl #CalibrationCircuit #EmbeddedSystems #ElectronicComponents #ElectricalEngineering #PCBDesign #CircuitDesign #IndustrialElectronics #Instrumentation #CommonPartsLibrary #EngineeringSpecification #ComponentLibrary #TechnicalDocumentation #SystemIntegration #HardwareDevelopment #ReliabilityEngineering

EEPROM Memory IC 2Kbit I2C 400 kHz 900 ns SOT-23-5 EEPROM memory providing 2 Kbit (256 × 8) nonvolatile data storage over an I²C-compatible serial interface. It operates from a 2.5 V to 5.5 V supply, supports up to 400 kHz clock frequency, and features a 16-byte page write buffer, self-timed erase/write cycles, and more than 1 million erase/write cycles with data retention exceeding 200 years. #EEPROM #SerialEEPROM #I2C #NonVolatileMemory #2Kbit #256x8 #Microchip #EmbeddedSystems #PCBLibrary #SOT23

FLASH - NOR Memory IC 128Mb (16M x 8) SPI - Quad I/O, QPI, DTR 133 MHz 8-SOIC 128M-bit Serial Flash Memory with uniform 4KB sectors and Dual/Quad SPI Winbond W25Q128JV is a 128-Mbit (16 MB) serial NOR Flash memory device designed for code and data storage in embedded systems. It supports standard SPI, Dual SPI, Quad SPI (QSPI), and Dual/Quad Peripheral Interface (DPI/QPI) modes, enabling high-speed data transfer rates up to 133 MHz clock operation and up to 532 MB/s equivalent throughput in Quad I/O DTR mode. The device supports Execute-In-Place (XIP), allowing processors and microcontrollers to run code directly from external flash memory without copying it to RAM. Features include 4 KB sector erase, 32 KB and 64 KB block erase, page programming, hardware/software write protection, security registers, JEDEC identification, SFDP support, suspend/resume operations, and low-power standby modes. Suitable for microcontrollers, FPGA configuration storage, IoT devices, industrial controllers, networking equipment, consumer electronics, and embedded systems requiring reliable non-volatile memory. Search Keywords: W25Q128JV, Winbond flash memory, SPI NOR Flash, QSPI Flash, Quad SPI memory, Serial Flash memory, 128Mbit Flash, 16MB Flash memory, Execute In Place XIP, external MCU flash, ESP32 flash memory, FPGA configuration memory, NOR flash storage, W25Q128, Dual SPI Flash, Quad I/O Flash, embedded nonvolatile memory, serial flash IC Hashtags: #W25Q128JV #Winbond #NORFlash #SPIMemory #QSPI #SerialFlash #FlashMemory #EmbeddedSystems #Microcontroller #ESP32 #FPGA #NonVolatileMemory #XIP #IoT #ElectronicsDesign #MemoryIC #FirmwareStorage #QuadSPI #EmbeddedHardware #ElectronicComponents

The W25Q02JVSFIM from Winbond Electronics is a 2G-bit (256M x 8) Serial NOR Flash Memory device designed for high-density non-volatile data storage applications. It supports high-speed SPI, Dual/Quad SPI, QPI, and DTR interfaces, providing fast data transfer and efficient memory access for embedded systems. The device operates from a 2.7V to 3.6V supply voltage and is available in a 16-pin SOIC surface-mount package. It is suitable for applications such as firmware storage, boot code memory, industrial controllers, IoT devices, automotive electronics, and embedded systems requiring large-capacity reliable flash memory. Key Features Memory Density: 2G-bit Serial NOR Flash (256M x 8) Flash Technology: Single-Level Cell (SLC) NOR Flash Interface Support: Standard SPI, Dual SPI, Quad SPI, QPI, and DTR modes High-Speed Clock Frequency: Up to 133 MHz operation Fast Access Time: Approximately 7.5 ns Supply Voltage Range: 2.7V to 3.6V Non-Volatile Data Storage: Retains stored data without power Memory Organization: 256M x 8-bit architecture Package Type: 16-pin SOIC (7.50 mm width) surface-mount package Operating Temperature Range: -40°C to +85°C Page Program Time: Approximately 3.5 ms Applications: Embedded firmware storage, BIOS/boot memory, industrial equipment, IoT devices, and consumer electronics Hashtags #W25Q02JVSFIM #Winbond #SerialFlashMemory #NORFlash #SPIFlash #QuadSPI #QPI #DTR #EmbeddedSystems #NonVolatileMemory #FlashMemory #FirmwareStorage #IoT #IndustrialElectronics #Semiconductor #MemoryIC

FRAM (Ferroelectric RAM) Memory IC 2Mbit SPI 40 MHz 8-SOIC 2-Mbit Serial F-RAM (Ferroelectric RAM) provides nonvolatile data storage organized as 256K × 8 bits and accessed through a high-speed SPI interface supporting up to 40 MHz and SPI modes 0 and 3. It operates from 2.0 V to 3.6 V over an industrial temperature range of −40°C to +85°C and is available in 8-pin SOIC and DFN packages. #F-RAM #SPI #NonvolatileMemory #Infineon

16GB SLC eMMC 5.1 FBGA-153(11.5x13) Memory RoHS eMMC embedded flash memory providing non-volatile data storage with a 16GB SLC capacity and eMMC 5.1 interface. It supports up to 210MB/s sequential read and 170MB/s sequential write speeds, operates with VCCQ of 1.7–1.95V or 2.7–3.6V and VCCF of 2.7–3.6V, and is specified for an operating temperature range of −40°C to +85°C. #eMMC #EmbeddedFlash #FlashMemory #SLC #eMMC5_1 #16GB #NonVolatileMemory #IndustrialTemperature #FBGA153 #MK

FLASH - NOR Memory IC 16Mbit SPI - Quad I/O 133 MHz 8-SOIC Serial NOR Flash Memory that provides non-volatile data storage using a SPI interface. The W25Q16JVSSIQ features 16-Mbit memory density, operates from a 2.7V to 3.6V supply voltage, supports standard SPI, Dual SPI, and Quad SPI interfaces, and provides clock frequencies up to 133 MHz in a 8-pin SOIC package. #FlashMemory #SPIFlash #NORFlash #NonVolatileMemory #Winbond #W25Q16JVSSIQ