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

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

24
2-WIRE CMOS SERIAL E
S-24C128C
When initialization is successfully completed by the power-on-clear circuit, the S-24C128C enters the standby
status.
If the power-on-clear circuit does not operate;
The S-24C128C has not completed initialization, an instruction previously input is still valid or an instruction
may be inappropriately recognized. In this case, S-24C128C may perform the Write operation.
The voltage drops due to power off while the S-24C128C is being accessed. Even if the master device is reset
due to the low power voltage, the S-24C128C may malfunction unless the power-on-clear operation conditions
of S-24C128C are satisfied.
When not using this rise time seen in Figure 26, adjust the phase (reset) to reset the internal circuit in the S-
24C128C normally.
For example: If the supply voltage = 5.0 V, raise the power supply voltage to 5.0 V within 200 ms.
Power Supply Voltage (V
[V]
2
Figure 26 Rise Time of Power Supply Voltage
PROM
CC
)
Seiko Instruments Inc.
5.0
4.0
3.0
2.0
Rise Time (t
50
[ms]
100
RISE
) Max.
150
200
Rev.2.0
_00_H