Texas Instruments 5962-8684701EA
- Part Number:
- 5962-8684701EA
- Manufacturer:
- Texas Instruments
- Ventron No:
- 6370601-5962-8684701EA
- Description:
- High Speed CMOS Logic Dual Retriggerable Monostable Multivibrators with Resets
- Datasheet:
- cd54hc123
- Number of channels2
- Supply voltage (min) (V)2
- Supply voltage (max) (V)6
- Technology familyHC
- Input typeStandard CMOS
- Output typePush-Pull
- Supply current (μA)160
- IOL (max) (mA)5.2
- IOH (max) (mA)-5.2
- FeaturesBalanced outputs
- Operating temperature range (°C)-55 to 125
- RatingMilitary
The HC123, HCT123, CD74HC423 and CD74HCT423 are dual monostable multivibrators with resets. They are all retriggerable and differ only in that the 123 types can be triggered by a negative to positive reset pulse; whereas the 423 types do not have this feature. An external resistor (RX) and an external capacitor (CX) control the timing and the accuracy for the circuit. Adjustment of Rx and CX provides a wide range of output pulse widths from the Q and Q\ terminals. Pulse triggering on the A\ and B inputs occur at a particular voltage level and is not related to the rise and fall times of the trigger pulses.
Once triggered, the output pulse width may be extended by retriggering inputs A\ and B. The output pulse can be terminated by a LOW level on the Reset (R) pin. Trailing edge triggering (A)\ and leading edge triggering (B) inputs are provided for triggering from either edge of the input pulse. If either Mono is not used each input on the unused device (A\, B, and R\) must be terminated high or low.
The minimum value of external resistance, Rx is typically 5k. The minimum value external capacitance, CX, is 0pF. The calculation for the pulse width is tW = 0.45 RXCX at VCC = 5V.
Monostable Multivibrator Dual-Element -55°C 125°C 16-Pin CDIP Tube
HC/UH SERIES DUAL MONOSTABLE MULTIVIBRATOR CDIP16
French Electronic Distributor since 1988
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