LS7213R， LS7213R-S
Programmable Digital Delay Timer (14 Pins)
Produces real-time delays from 10 kHz-1kHz time-base range
Eight time delay ranges: 0。1 - 1 Seconds; Minutes; Hours， 1 - 10: Seconds; Minutes; Hours， 10 - 100: Seconds; Minutes
RC Oscillator generates time-base
Four operating modes
Reset for delay abort
Complementary outputs
Delay-in-progress indicator output
3V to 5。5V operation
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