s-24c128ci-t8t1u3 Seiko Instruments Inc., s-24c128ci-t8t1u3 Datasheet - Page 19

• Manufacturer Part Number: s-24c128ci-t8t1u3
• Description: 2-wire Serial Eeprom S-24c128c 128k-bit
• Manufacturer: Seiko Instruments Inc.

Rev.2.0
Write Protect Function during the Low Power Supply Voltage
The S-24C128C 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 19).
The S-24C128C 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
_00_H
Detection Voltage ( V
1.20 V Typ.
Figure 19 Operation during Low Power Supply Voltage
DET
)
Seiko Instruments Inc.
Write Instruction cancel
2-WIRE CMOS SERIAL E
Release Voltage ( V
1.20 V Typ.
DET
)
S-24C128C
2
PROM
19