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| SAA1305T Datasheet, PDF (26/32 Pages) Panasonic Semiconductor – On/off logic IC | |||
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Philips Semiconductors
On/off logic IC
Product speciï¬cation
SAA1305T
handbook, full pagewidth SAA1305T
input D0 = LOW
250 ms
10 ms
TS = LOW
ON/OFF = LOW
RP = HIGH
CHI = LOW
ON/OFF = HIGH
RP = LOW
5 V regulator
RESET = HIGH
microcontroller
25 ms
input D0 = HIGH(1)
CHI = HIGH
250 ms
250 ms
(1) If input D0 = LOW, the microcontroller will restart the VL timer.
I2C-bus read status/old/new register
WD = LOW
WD = HIGH
WD = LOW
MGR218
Fig.24 VL timer behaviour.
handbook, full pagewidSthAA1305T
1 to 20 ms
300 ms
1 to 20 ms
300 ms
2004 Jan 15
RP = HIGH
RP = LOW
CHI = LOW
RP = HIGH
RP = LOW
ON/OFF = LOW
5 V regulator
microcontroller
wrong or missed Watchdog timer trigger signal
wrong or missed Watchdog timer trigger signal
4 times
wrong or missed Watchdog timer trigger signal
MGR219
Fig.25 Wrong or missed Watchdog timer trigger.
26
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