INTERSIL
芯片, CMOS, 可编程内部定时器, SMD
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
MAXIM INTEGRATED PRODUCTS
RTC IC, Date Time Format (Day/Date/Month/Year hh:mm:ss), I2C, 4.5 V to 5.5 V, DIP-8
STMICROELECTRONICS
芯片, SRAM, TIMEKEEPER? 64K
MICROCHIP
芯片, 实时时钟, I2C, 64字节 SRAM, 8PDIP
STMICROELECTRONICS
芯片, SRAM, TIMEKEEPER? 16K
MICROCHIP
芯片, 实时时钟/日历, GP I2C, 64B SRAM, 8PDIP
MAXIM INTEGRATED PRODUCTS
RTC IC, Date Time Format (Day/Date/Month/Year hh:mm:ss), Serial, 2 V to 5.5 V, DIP-8
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
Alarm RTC IC, Date Time Format (Day/Date/Month/Year hh:mm:ss), SPI, 2 V to 5.5 V, DIP-16
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
MAXIM INTEGRATED PRODUCTS
Alarm RTC IC, Day/Date/Month/Year/Century hh:mm:ss, Multiplexed, 4.5 V to 5.5 V, DIP-24
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
MAXIM INTEGRATED PRODUCTS
Alarm RTC IC, Date Time Format (Day/Date/Month/Year hh:mm:ss), Multiplexed, 4.5 V to 5.5 V, DIP-24
MAXIM INTEGRATED PRODUCTS
RTC IC, Date Time Format (Binary), I2C, 2.97 V to 3.63 V, DIP-8
MAXIM INTEGRATED PRODUCTS
Alarm RTC IC, Date Time Format (Day/Date/Month/Year hh:mm:ss), SPI, 2 V to 5.5 V, DIP-16
MAXIM INTEGRATED PRODUCTS
Alarm RTC IC, Date Time Format (Day/Date/Month/Year hh:mm:ss), Multiplexed, 4.5 V to 5.5 V, DIP-24