74AHC123APW View Datasheet(PDF) - Philips Electronics
Part Name
Description
MFG CO.
74AHC123APW Datasheet PDF : 24 Pages
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Philips Semiconductors
Dual retriggerable monostable multivibrator
with reset
Product specification
74AHC123A;
74AHCT123A
QUICK REFERENCE DATA
GND = 0 V; Tamb = 25 °C; tr = tf ≤ 3.0 ns.
SYMBOL
PARAMETER
CONDITIONS
tPHL/tPLH
CI
CO
CPD
propagation delay
nA, nB to nQ, nQ
nRD to nQ, nQ
input capacitance
output capacitance
power dissipation capacitance
CL = 15 pF; VCC = 5 V;
REXT = 5 kΩ; CEXT = 0 pF
VI = VCC or GND
CL = 50 pF; f = 1 MHz; notes 1
and 2
Notes
1. CPD is used to determine the dynamic power dissipation (PD in µW).
PD = CPD × VCC2 × fi + ∑ (CL × VCC2 × fo) × CEXT × VCC2 × fo + D × 16 × VCC where:
fi = input frequency in MHz;
fo = output frequency in MHz;
∑ (CL × VCC2 × fo) = sum of outputs;
D = duty factor in %;
CL = output load capacitance in pF;
CEXT = timing capacitance in pF;
VCC = supply voltage in Volts.
2. The condition is VI = GND to VCC.
TYPICAL
UNIT
AHC AHCT
5.1 5.0 ns
5.6 5.2 ns
5
3 pF
4
4 pF
57
58 pF
2000 Mar 15
3
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