S-24C02DI-J8T1U5 Datasheet, PDF (23/47 Pages) Seiko Instruments Inc – Write protect function during low power supply voltage

Rev.3.0_01_U
2-WIRE SERIAL E²PROM
S-24C02D/04D/08D16D
4. Acknowledge check
The I²C-bus protocol includes an acknowledge check function as a handshake function to prevent a communication
error. This function allows detection of a communication failure during data communication between the master
device and this IC. This function is effective to prevent malfunction, so it is recommended to perform an acknowledge
check with the master device.
5. Power-on-clear circuit
By power-on-clear circuit, this IC initializes at the same time when the power supply voltage is raised. After the
initialization by the power-on-clear circuit is completed, this IC becomes standby state.
In order to use this IC safely, raise the power supply voltage depending on the following conditions.
5. 1 Initialization time
This IC initializes at the same time when the power supply voltage is raised. Input instructions to this IC after
initialization. This IC does not accept any instruction during initialization.
Figure 21 shows the initialization time of this IC.
100 m
10 m
Initialization time
(t_INIT) max.
[s]
1.0 m
100 μ
10 μ
1.0 μ
1.0 μ 10 μ 100 μ 1.0 m 10 m 100 m
Rise time (t_RISE)
[s]
Figure 21 Initialization Time
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