SAA1305T Datasheet, PDF (25/32 Pages) Panasonic Semiconductor – On/off logic IC

Philips Semiconductors
On/off logic IC
Product specification
SAA1305T
Scenarios for ON/OFF logic with switched microcontroller supply
handbook, full p⁵ag^Vew^ci^odtⁿh^tinuous
regulator
SAA1305T
5 V regulator
microcontroller
RES = LOW
RP = HIGH
200 ms
RES = HIGH
ON/OFF = HIGH
20 ms
RP = LOW
ON/OFF = LOW
6 ms
RESET = HIGH
CHI = LOW
RESET = LOW
I²C-bus read status/old/new register
CHI = HIGH
I²C-bus write reset time/blink/LED status
I²C-bus write ENABLE-RESET
RESET = HIGH
MGR216
Fig.22 Proper first connection on power supply.
handbook, full pagewidth^SAA1305T
Dx
10 ms
250 ms
250 ms
RP = HIGH
ON/OFF = HIGH
CHI = LOW
RP = LOW
CHI = HIGH
5 V regulator
RESET = HIGH
RESET = LOW
microcontroller
6 ms
I²C-bus read status/old/new register
WD = LOW
WD = HIGH
WD = LOW
MGR217
2004 Jan 15
Fig.23 Switch-on after a valid input change.
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