Low
SN74LS221D -
Multivibrador Monoestable, 74LS221, 45 ns, 8 mA, 4.75 V a 5.25 V, SOIC-16
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- Fabricante:
- TEXAS INSTRUMENTS TEXAS INSTRUMENTS
- Referencia del fabricante:
- SN74LS221D
- Código Farnell:
- 1470897
- Hoja de datos técnicos:
- (EN)
Información del producto
Resumen del producto
The SN74LS221D is a dual Monostable Multivibrator with schmitt-trigger inputs. Its performance characteristics virtually identical to those of the '121 devices. Each multivibrator 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. Schmitt-trigger input circuitry for B input allows jitter-free triggering from inputs with transition rates as slow as 1V/s, providing the circuit with excellent noise immunity, typically of 1.2V. A high immunity to VCC noise, typically of 1.5V, is also provided by internal latching circuitry. Once fired, the outputs are independent of further transitions of the A and B inputs and are a function of the timing components or the output pulses can be terminated by the overriding clear. Input pulses can be of any duration relative to the output pulse.
- Overriding clear terminates output pulse
- Green product and no Sb/Br
Aplicaciones
Industrial
