LS7211N Datasheet (PROGRAMMABLE DIGITAL DELAY TIMER)

Part: LS7211N
Manufacturer: LSI
Size: 205.77 KB

LS7211N 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

LS7211N 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.