Description
The M-959 is a low-power dial pulse counter and hook status monitor. Contained in a 14-pin package, the M-959 requires no external components except a single 3.579 MHz television color burst crystal.
Features
⢠Time-guarded dial pulse counting
⢠10 or 20 PPS dialing speeds pin selectable
⢠Tri-state data outputs
⢠Valid data output strobe
⢠Data strobe control for use in interrupt-driven
environments
⢠Independent hook status monitoring
⢠Low-power CMOS construction
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