Real-time Clocks (RTC) RX-8025SA:AC0 AC0 LCSC Part Number: C2669590 JLCPCB Part Class: undefined Manufactured by EPSON(爱普生)

64 x 8, Serial, I2C Real-time clock, 4.5V to 5.5V VCC, 0°C to +70°C, SOIC-8 RTC, I2C Timekeeping Chip SOIC*3.9x4.9mm?P1.27mm*

Trickle-Charge Timekeeping Chip, 2.0V to 5.5V VCC, 0°C to +70°C, SOIC-8 RTC, Trickle-Charge Timekeeping Chip SOIC*3.9x4.9mm?P1.27mm*

The ESP32-DEVKITC-VE evaluation kit from Espressif Systems is a high-performance development platform for RF, RFID, and wireless applications. It features the ESP32-WROVER-E with embedded Xtensa dual-core 32-bit LX6 microprocessor running up to 240 MHz, with 8MB Flash and 8MB PSRAM for efficient data processing. This board supports Wi-Fi 802.11 b/g/n and Bluetooth® Smart Ready 4.x (BLE) connectivity at 2.4GHz, offering wireless communication options. With 448KB ROM, 520KB SRAM, and 16KB SRAM in RTC, it provides ample memory for complex applications. It includes up to 24 GPIOs, SD card, UART, SPI, SDIO, I2C, LED and motor PWM, I2S, IR, pulse counter, capacitive touch sensor, ADC, DAC, and TWAI® (compatible with ISO 11898-1/CAN 2.0) #commonpartslibrary #ESP32-WROVER-E #evaluationboard

Real Time Clock (RTC) IC Clock/Calendar - I²C, 2-Wire Serial 8-SOIC (0.154", 3.90mm Width) #Timer #RTC #commonpartslibrary

ARM® Cortex®-M4 series Microcontroller IC 32-Bit Single-Core 168MHz 1MB (1M x 8) FLASH 64-LQFP (10x10) Arm® Cortex®-M4 32b MCU+FPU, 210DMIPS, up to 1MB flash/192+4KB RAM, USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 15 comm. interfaces, and camera Includes ST state-of-the-art patented technology • Core: Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator) allowing 0-wait state execution from flash memory, frequency up to 168 MHz, memory protection unit, 210 DMIPS/ 1.25 DMIPS/MHz (Dhrystone 2.1), and DSP instructions • Memories – Up to 1 Mbyte of flash memory – Up to 192+4 Kbytes of SRAM including 64- Kbyte of CCM (core coupled memory) data RAM – 512 bytes of OTP memory – Flexible static memory controller supporting CompactFlash™, SRAM, PSRAM, NOR and NAND memories • LCD parallel interface, 8080/6800 modes • Clock, reset, and supply management – 1.8 V to 3.6 V application supply and I/Os – POR, PDR, PVD and BOR – 4-to-26 MHz crystal oscillator – Internal 16 MHz factory-trimmed RC (1% accuracy) – 32 kHz oscillator for RTC with calibration – Internal 32 kHz RC with calibration • Low-power operation – Sleep, Stop, and Standby modes –VBAT supply for RTC, 20×32-bit backup registers + optional 4 KB backup SRAM • 3×12-bit, 2.4 MSPS A/D converters: up to 24 channels and 7.2 MSPS in triple interleaved mode • 2×12-bit D/A converters • General-purpose DMA: 16-stream DMA controller with FIFOs and burst support • Up to 17 timers: up to twelve 16-bit and two 32- bit timers up to 168 MHz, each with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input • Debug mode – Serial wire debug (SWD) & JTAG interfaces – Cortex-M4 Embedded Trace Macrocell™ • Up to 140 I/O ports with interrupt capability – Up to 136 fast I/Os up to 84 MHz – Up to 138 5 V-tolerant I/Os • Up to 15 communication interfaces – Up to 3 × I2C interfaces (SMBus/PMBus) – Up to 4 USARTs/2 UARTs (10.5 Mbit/s, ISO 7816 interface, LIN, IrDA, modem control) – Up to 3 SPIs (42 Mbits/s), 2 with muxed full-duplex I2S to achieve audio class accuracy via internal audio PLL or external clock – 2 × CAN interfaces (2.0B Active) – SDIO interface • Advanced connectivity – USB 2.0 full-speed device/host/OTG controller with on-chip PHY – USB 2.0 high-speed/full-speed device/host/OTG controller with dedicated DMA, on-chip full-speed PHY and ULPI – 10/100 Ethernet MAC with dedicated DMA: supports IEEE 1588v2 hardware, MII/RMII #commonpartslibrary #integratedcircuit #microcontroller

ARM Microcontrollers - MCU ARM M4 1024 FLASH 168 Mhz 192kB SRAM 100-LQFP (14x14) Arm® Cortex®-M4 32b MCU+FPU, 210DMIPS, up to 1MB Flash/192+4KB RAM, USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 15 comm. interfaces & camera • Core: Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator) allowing 0-wait state execution from Flash memory, frequency up to 168 MHz, memory protection unit, 210 DMIPS/ 1.25 DMIPS/MHz (Dhrystone 2.1), and DSP instructions • Memories – Up to 1 Mbyte of Flash memory – Up to 192+4 Kbytes of SRAM including 64- Kbyte of CCM (core coupled memory) data RAM – 512 bytes of OTP memory – Flexible static memory controller supporting Compact Flash, SRAM, PSRAM, NOR and NAND memories • LCD parallel interface, 8080/6800 modes • Clock, reset and supply management – 1.8 V to 3.6 V application supply and I/Os – POR, PDR, PVD and BOR – 4-to-26 MHz crystal oscillator – Internal 16 MHz factory-trimmed RC (1% accuracy) – 32 kHz oscillator for RTC with calibration – Internal 32 kHz RC with calibration • Low-power operation – Sleep, Stop and Standby modes –VBAT supply for RTC, 20×32 bit backup registers + optional 4 KB backup SRAM • 3×12-bit, 2.4 MSPS A/D converters: up to 24 channels and 7.2 MSPS in triple interleaved mode • 2×12-bit D/A converters • General-purpose DMA: 16-stream DMA controller with FIFOs and burst support • Up to 17 timers: up to twelve 16-bit and two 32- bit timers up to 168 MHz, each with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input • Debug mode – Serial wire debug (SWD) & JTAG interfaces – Cortex-M4 Embedded Trace Macrocell™ • Up to 140 I/O ports with interrupt capability – Up to 136 fast I/Os up to 84 MHz – Up to 138 5 V-tolerant I/Os • Up to 15 communication interfaces – Up to 3 × I2C interfaces (SMBus/PMBus) – Up to 4 USARTs/2 UARTs (10.5 Mbit/s, ISO 7816 interface, LIN, IrDA, modem control) – Up to 3 SPIs (42 Mbits/s), 2 with muxed full-duplex I2S to achieve audio class accuracy via internal audio PLL or external clock – 2 × CAN interfaces (2.0B Active) – SDIO interface • Advanced connectivity – USB 2.0 full-speed device/host/OTG controller with on-chip PHY – USB 2.0 high-speed/full-speed device/host/OTG controller with dedicated DMA, on-chip full-speed PHY and ULPI – 10/100 Ethernet MAC with dedicated DMA: supports IEEE 1588v2 hardware, MII/RMII #CommonPartsLibrary #IntegratedCircuit #Microcontroller #STM32F407

HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial Clock/Calendar SOIC-8_150mil Real-time Clocks (RTC) ROHS #CommonPartsLibrary #IntegratedCircuit #Clock/Timing #RTC

DS3231 - Real Time Clock (RTC) Timing Evaluation Board #commonpartslibrary #DS3231 #rtc #evaluationboard

Real Time Clock (RTC) IC Clock/Calendar I²C, 2-Wire Serial 10-XFDFN Exposed Pad #commonpartslibrary #integratedcircuit #realtimeclock #calendar

Real Time Clock (RTC) IC Clock/Calendar 31B 3-Wire Serial 8-DIP (0.300", 7.62mm)

Battery Retainer Coin, 24.5mm 1 Cell SMD (SMT) Tab BAT-HLD-006-SMT is a surface-mount coin-cell battery holder designed for secure retention of a single CR2450 lithium coin battery in compact PCB applications. Manufactured by TE Connectivity, it provides a low-profile, reliable power solution for embedded systems, wireless sensors, IoT devices, medical electronics, and backup power circuits. The holder features a horizontal battery orientation, phosphor bronze construction, and nickel-plated contacts for durability and dependable electrical performance. Key Features Supports one CR2450 coin-cell battery Surface-mount (SMT) PCB installation Horizontal battery orientation for low-profile designs Nickel-plated contacts for reliable conductivity and corrosion resistance Phosphor bronze construction for mechanical durability Maximum contact current rating of 1 A Compact design with approximately 6.88 mm height above PCB Suitable for automated assembly and reflow soldering processes Ideal for RTC backup, wireless modules, portable electronics, and IoT devices #BatteryHolder #CR2450 #CoinCellHolder #SMT #SurfaceMount #TEConnectivity #PowerManagement #EmbeddedSystems #IoT #PCBDesign #Electronics #BatteryRetainer #HardwareDesign #ElectronicComponents

Real Time Clock (RTC) IC Clock/Calendar 64B I²C, 2-Wire Serial 8-SOIC (0.154", 3.90mm Width) #commonpartslibrary #integratedcircuit #realtimeclock #calendar

Real Time Clock (RTC) IC Clock/Calendar 56B I²C, 2-Wire Serial 8-SOIC #commonpartslibrary #integratedcircuit #clock #timing #rtc

Real Time Clock (RTC) IC Clock/Calendar 64B I2C, 2-Wire Serial 8-SOIC (0.154", 3.90mm Width) #commonpartslibrary #integratedcircuit #realtimeclock #rtc

Real Time Clock (RTC) IC Clock/Calendar I2C, 2-Wire Serial 10-XFDFN Exposed Pad #commonpartslibrary #integratedcircuit #rtc

Real Time Clock (RTC) IC Clock/Calendar 64B SPI 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) #commonpartslibrary #integratedcircuit #rtc #clock #calendar

Real Time Clock (RTC) IC Clock/Calendar - I²C, 2-Wire Serial 8-SOIC (0.154", 3.90mm Width) #Timer #RTC #commonpartslibrary

Real Time Clock (RTC) IC Clock/Calendar 64B SPI 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) #CommonPartsLibrary #IntegratedCircuit #Clock/Timing #RTC

Real Time Clock (RTC) IC Clock/Calendar 128B I2C, 2-Wire Serial 20-SOIC (0.295", 7.50mm Width) #CommonPartsLibrary #IntegratedCircuit #Clock/Timing #RTC #ISL12022

Real Time Clock (RTC) IC Clock/Calendar 56B I²C, 2-Wire Serial 8-DIP #commonpartslibrary #integratedcircuit #clock #timing #rtc

Real Time Clock (RTC) IC Clock/Calendar I2C, 2-Wire Serial 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

XIAO Logger HAT - A tiny temperature, humidity and light add-on module for XIAO with RTC and battery voltage monitoring.This little hat add-on for XIAO incorporates a Sensirion SHT40 temperature and humidity sensor, the BH1750 ambient light sensor, a PCF8563 real-time clock for accurate timekeeping, and an enableable voltage divider to keep track of the battery voltage.