S-24C128C Datasheet, PDF (9/35 Pages) Seiko Instruments Inc – Write protect function during the low power supply voltage

Rev.4.0_02_H
2-WIRE SERIAL E²PROM
S-24C128C
 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
S-24C128C initiates a write cycle.
t_SU.STA t_HD.STA
t_SU.STO
SCL
SDA
Start Condition
Figure 8 Start / Stop Conditions
Stop Condition
9