s-24cs16a Seiko Instruments Inc., s-24cs16a Datasheet - Page 23

• Manufacturer Part Number: s-24cs16a
• Description: 2-wire Cmos Serial E2prom
• Manufacturer: Seiko Instruments Inc.

Rev.5.1
When initialization is successfully completed via the power-on-clear circuit, the E
If the power-on-clear circuit does not operate, the following are the possible causes.
If the power-on-clear circuit does not operate, match the phase (reset) so that the internal E
reset. The statuses of the E
(reset) are the same.
(1) Because the E
(2) The voltage may have dropped due to power off while the E
inappropriately recognized. In this case, writing may be performed.
is reset due to the low power voltage, the E
of E
supply voltage .
_00
2
PROM are satisfied. For the power-on-clear operation conditions of E
For example: If your E
Power supply voltage (V
2
PROM has not been initialized, an instruction formerly input is valid or an instruction may be
2
PROM immediately after the power-on-clear circuit operates and when phase is matched
Figure 28 Raising Time of Power Supply Voltage
[V]
2
PROM supply voltage = 5.0 V, raise the power supply voltage to 5.0 V within 200 ms.
CC
)
Seiko Instruments Inc.
2
PROM may malfunction unless the power-on-clear operation conditions
5.0
4.0
3.0
2.0
Rise time (t
2
PROM is being accessed. Even if the microprocessor
50
[ms]
100
2-WIRE CMOS SERIAL E
RISE
) Max.
2
150
PROM enters the standby status.
2
PROM, refer to 5.1 Raising power
200
2
PROM circuit is normally
S-24CS16A
2
PROM
23