s-24c04c Seiko Instruments Inc., s-24c04c Datasheet - Page 20

• Manufacturer Part Number: s-24c04c
• Description: 2-wire Serial E2prom
• Manufacturer: Seiko Instruments Inc.

20
2-WIRE SERIAL E
S-24C04C
Write Protect Function during the Low Power Supply Voltage
The S-24C04C has a built-in detection circuit which operates with the low power supply voltage, cancels Write when the
power supply voltage drops and power-on. Its detection and release voltages are 1.20 V typ. (Refer to Figure 21).
The S-24C04C cancels Write by detecting a low power supply voltage when it receives a stop condition.
In the data trasmission and the Write operation, data in the address written during the low power supply voltage is not
assurable.
Power Supply Voltage
Detection Voltage (−V
1.20 V Typ.
2
PROM
Figure 21 Operation during Low Power Supply Voltage
DET
)
Seiko Instruments Inc.
Write Instruction cancel
Release Voltage (+V
1.20 V Typ.
DET
)
Rev.2.0
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