74423

Dual retriggerable monostable multivibrator with reset

PDF datasheet

    
1A1 •16Vcc
1B2151REXT/CEXT
1RD3141CEXT
1Q4131Q
2Q5122Q
2CEXT6112RD
2REXT/CEXT7102B
GND892A
    
PinSymbolDescription
11Anegative-edge triggered input 1
21Bpositive-edge triggered input 1
31RDdirect reset (active low) 1
41Qactive low output 1
52Qactive high output 2
62CEXTexternal capacitor connection 2
72REXT/CEXTexternal resistor and capacitor connection 2
8GNDground
92Anegative-edge triggered input 2
102Bpositive-edge triggered input 2
112RDdirect reset (active low) 2
122Qactive low output 2
131Qactive high output 1
141CEXTexternal capacitor connection 1
151REXT/CEXTexternal resistor and capacitor connection 1
16Vccsupply voltage

Specifications

(typical values under recommended operating conditions, unless specified)
ParameterValueUnit
Propagation delay, nRD, nA, nB to nQ or nQ25 (74HC)
26(74HCT)
ns
Propagation delay, nRD to nQ or nQ20 (74HC)
22 (74HCT)
ns
Output transition time7 (74HC/HCT)ns
Retrigger time nA, nB110 (74HC/HCT)ns
External timing resistor2 (min)
1000 (max)

Notes

Note: Data is maintained by an independent source and accuracy is not guaranteed. Check with the manufacturer's datasheet for up-to-date information.