
DS1308
Low-Current I2C RTC with 56-Byte NV RAM
5
Maxim Integrated
Figure 1. Data Transfer on I2C Serial Bus
Figure 2. Power-Up/Power-Down Timing
SCL
NOTE: TIMING IS REFERENCED TO VILMAX AND VIHMIN.
SDA
STOP
START
REPEATED
START
tBUF
tHD:STA
tHD:DAT
tSU:DAT
tSU:STO
tHD:STA
tSP
tSU:STA
tHIGH
tR
tF
tLOW
VCC
SCL
SDA
VALID
RECOGNIZED
VALID
RECOGNIZED
VPF
tVCCF
DON’T CARE
HIGH IMPEDANCE
tREC
tVCCR