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ICM7170
Microprocessor-Compatible,
Real-Tim1-e8c8CoN8nl-oOtINaccRkTtEEoCRuOOSrBIMTLSeMoOcErhLNwnEiDwTcEaEwlD.PiSnRRutEeOprPpDsoLiUlrA.CtcCoCTEmeMn/dtEeeNrsTaigtn
DATASHEET
FN3019 Rev.6.00 Nov 2003
The ICM7170 real time clock is a microprocessor bus compatible peripheral, fabricated using Intersil’s silicon gate CMOS LSl process. An 8-bit bidirectional bus is used for the data I/O circuitry. The clock is set or read by accessing the 8 internal separately addressable and programmable counters from 1/100 seconds to years. The counters are controlled by a pulse train divided down from a crystal oscillator circuit, and the frequency of the crystal is selectable with the on-chip command register.