
STMICROELECTRONICS
芯片, 实时时钟 带报警功能 I2C

EPSON
芯片, 实时时钟 I2C总线接口

ABRACON
芯片, 实时时钟, RC/晶振模式, 256B RAM, VBAT, 16QFN

ABRACON
芯片, 实时时钟, RC/晶振模式, 256B RAM, 16QFN

EPSON
芯片, 实时时钟 I2C总线接口

EPSON
芯片, 实时时钟, 14SOIC

STMICROELECTRONICS
芯片, 非易失性存储器 10年内部电池供电 16K

EPSON
芯片, 实时时钟

MAXIM INTEGRATED PRODUCTS
RTC, SERIAL ALARM, LOW POWER, 1337

STMICROELECTRONICS
芯片, SRAM, TIMEKEEPER? 64K

MICRO CRYSTAL
芯片, 实时时钟, SMD, SPI, 32.768KHz

MICROCHIP
芯片, 实时时钟, I2C, 64字节 SRAM, 8PDIP

EPSON
芯片, 实时时钟 高稳定性 串行口

STMICROELECTRONICS
芯片, SRAM, TIMEKEEPER? 16K

INTERSIL
芯片, 实时时钟

STMICROELECTRONICS
芯片, 非易失性存储器 10年内部电池供电 64K

MAXIM INTEGRATED PRODUCTS
芯片, 收发器, RS485, 20KBPS, 5V, 14DIP

STMICROELECTRONICS
芯片, SRAM, TIMEKEEPER? 64K

STMICROELECTRONICS
芯片, 非易失性存储器, TIMEKEEPER?, 3V, 256K

STMICROELECTRONICS
芯片, 非易失性存储器, TIMEKEEPER?, 5V, 64K

MICRO CRYSTAL
芯片, 实时时钟, SMD, I?C, 32.768KHz

STMICROELECTRONICS
芯片, SRAM, TIMEKEEPER? 256K

MAXIM INTEGRATED PRODUCTS
RTC, 96BYTE, NVRAM, SPI / 3WIRE, 16DIP

STMICROELECTRONICS
芯片, SRAM, 实时时钟, 非易失性, 256K

STMICROELECTRONICS
芯片, SRAM, TIMEKEEPER? 16K