NTE74LS221 Overview
Key Specifications
Package: DIP
Pins: 16
Operating Voltage: 5 V
Max Voltage (typical range): 5.25 V
Description
The NTE74LS221 is a monolithic dual multivibrator in a 16-Lead plastic DIP type package with performance characteristics virtually identical to those of the NTE74121. Each multivibrator features a negative-transition-triggered input and a positive-transition-triggered input either of which can be used as an inhibit input.
Key Features
- a negative-transition-triggered input and a positive-transition-triggered input either of which can be used as an inhibit input
- Pulse triggering occurs at a particular voltage level and is not directly related to the transition time of the input pulse
- A high immunity to VCC noise of typically 1.5V is also provided by internal latching circuitry
- Input pulses may be of any duration relative to the output pulse
- Output pulse length may be varied from 35ns to the maximum pulse length of 70 seconds by choosing appropriate timing components
