S-24CS64A Datasheet, PDF (10/44 Pages) Seiko Instruments Inc – 2-WIRE CMOS SERIAL E2PROM

2-WIRE CMOS SERIAL E²PROM
S-24CS64A
Rev.3.3_00
„ Operation
1. Start Condition
Start is identified by a high to low transition of the SDA line while the SCL line is stable at high.
Every operation begins from a start condition.
2. Stop Condition
Stop is identified by a low to high transition of the SDA line while the SCL line is stable at high.
When a device receives a stop condition during a read sequence, the read operation is interrupted, and
the device enters standby mode.
When a device receives a stop condition during a write sequence, the reception of the write data is halted,
and the E²PROM initiates a write cycle.
SCL
tSU.STA t_HD.STA
tSU.STO
SDA
Start Condition
Stop Condition
Figure 8 Start / Stop Conditions
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Seiko Instruments Inc.