Microchip USA 实时时钟

Clock, Real Time Module With Spi Bus, 5.0 X 3.2 X 1.2 Mm, 6.5V, -40 to 125C

Real Time Clock (RTC) IC Clock/Calendar SPI 10-SMD Module

Real Time Clock, I2C, -40 To 85Deg C Rohs Compliant: Yes |Abracon AB-RTCMC-32.768KHZ-IBO5-S3-T

M41T62 Series 4.4 V Serial Real-Time Clock (RTC) with 56 bytes NVRAM - QFN-16

TIMER REAL TIME CLOCK QUAD CMOS SERIAL 3-WIRE rtc clock circuit 0.032MHz 2.3mm 3V

RTC-8564NB Series 3 V 32.768 kHz 2 Wire I2C-BUS Real Time Clock Module - SON-22

Timer Real Time Clock Quad Cmos Serial 4-WIRE/SPI Real Time Clock (rtc) IC 0.032MHZ 2.3MM 3V

Real Time Clock Serial Clock/Calendar/Alarm/Timer/Low Battery Detect 8-Pin PDIP Tube

Real Time Clock Serial Clock/Calendar/Alarm/Timer/Interrupt 20-Pin SON T/R

Real Time Clock Multiplexed 114byte Clock/Calendar/Alarm/NV SRAM Control 24-Pin SOIC Tube