DS1318 counter equivalent, parallel-interface elapsed time counter.
* Byte-Wide Parallel Interface
* 44-Bit Binary Counter Provides Timer with 244µs Resolution
* Automatic Power-Fail Detect and Switch Circuitry Selects Power S.
Typical Operating Circuit
VCC RPU
VCC SQW IRQ
WE EXT
OE
CPU
CE
DS1318
VBAT
A3
–A0
X1
DQ
&n.
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