LS7212N Description
The LS7211N and LS7212N are CMOS integrated circuits for generating digitally programmable delays. The delay is controlled by 8 binary weighted inputs, WB0 - WB7, in conjunction with an applied clock or oscillator frequency. The programmed time delay manifests itself in the Delay Output (OUT) as a function of the Operating Mode selected by the Mode Select inputs A.
LS7212N Key Features
- 8-bit programmable delay from microseconds to days
- On chip oscillator (RC or Crystal) or external clock time base
- Selectable prescaler for real time delay generation based
- Four operating modes
- Reset input for delay abort
- Low quiescent and operating current
- Direct relay drive
- +3V to +18V operation (VDD
- LS7211N, LS7212N (DIP); LS7211N-S, LS7212N-S (SOIC)
- See Figure 1 DESCRIPTION: The LS7211N and LS7212N are CMOS integrated circuits for generating digitally programmable del