DISCONTINUED PRODUCT
Rev.1.1 CR TIMER
S-8081B
The S-8081B is a CMOS CR timer developed for appliances and industrial ...
DISCONTINUED PRODUCT
Rev.1.1 CR TIMER
S-8081B
The S-8081B is a CMOS CR timer developed for appliances and industrial equipment use. It consists of a CR oscillator, a 20-stage divider, a power-on clear circuit, a trigger input chattering rejection circuit, an internal voltage
regulator, a level shift circuit, and an output driver. It can be used as a high-precision, long-time monostable timer.
n Features
Wide power supply operating range : 4.5 to 16.5 V Low current consumption : 200 µA max.(C = 200 kΩ,
R = 0.0047 µF, open output ) Time can be set by external CR Excellent oscillation stability because of built-in voltage
regulator Power-on clear circuit is integrated Both trigger I/O inverting operation and set/reset operation can be
performed
n Applications
Time switch Long time delay generator
n Pin Assignment
8-pin DIP/SOP Top view
VSS 1 SET 2 OUT 3 RESET 4
S−8081B
8 VDD 7 CR 6 DISCHARGE 5 TRIGGER
n Block Diagram
Figure 1
CR 7 DIS- 6 ...
