CD74HC123M96 Monostable Multivibrator Dual Retrig Mono

Description
The 'HC123, 'HCT123, CD74HC423 and CD74HCT423 are dual monostable multivibrators with resets.

They are allretriggerable 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 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 5kQ. The minimum value external capacitance,

CX, is 0pF. The calculation for the pulse width is tw= 0.45 RxCx at  Vcc= 5V.

Features
●Overriding Reset Terminates Output Pulse
●Triggering From the Leading or Trailing Edge
●Q and Q Buffered Outputs
●Separate Resets
●Wide Range of Output-Pulse Widths
●Schmitt Trigger on Both A and B Inputs
Fanout (Over Temperature Range)
Standard Output..............10 LSTTL Loads
Bus Driver Outputs
15 LSTTL Loads
●Wide Operating Temperature Range ... -55°C to 125°C
●Balanced Propagation Delay and Transition Times
●Significant Power Reduction Compared to LSTTL
Logic ICs
●HC Types
.2V to 6V Operation
High Noise Immunity: Nu = 30%, NIH = 30%of Vcc at
Vcc= 5V
●HCT Types
. 4.5V to 5.5V Operation
Direct LSTTL Input Logic Compatibility,
VIL= 0.8V (Max), VIH = 2V (Min)
CMOS Input Compatibility, h≤1μA at Vol, VoHd-