74AHC123A View Datasheet(PDF) - NXP Semiconductors.
Part Name
Description
Manufacturer
74AHC123A Datasheet PDF : 21 Pages
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NXP Semiconductors
74AHC123A; 74AHCT123A
Dual retriggerable monostable multivibrator with reset
Table 7. Dynamic characteristics …continued
GND = 0 V; For test circuit see Figure 12.
Symbol Parameter Conditions
25 °C
−40 °C to +85 °C −40 °C to +125 °C Unit
Min Typ[1] Max Min
Max
Min
Max
tW
pulse width inputs; nA = LOW;
see Figure 7
VCC = 3.0 V to 3.6 V
5.0 -
- 5.0
-
5.0
-
ns
VCC = 4.5 V to 5.5 V
5.0 -
- 5.0
-
5.0
-
ns
inputs; nB = HIGH;
see Figure 7
VCC = 3.0 V to 3.6 V
5.0 -
- 5.0
-
5.0
-
ns
VCC = 4.5 V to 5.5 V
5.0 -
- 5.0
-
5.0
-
ns
inputs; nRD = LOW;
see Figure 7
VCC = 3.0 V to 3.6 V
5.0 -
- 5.0
-
5.0
-
ns
VCC = 4.5 V to 5.5 V
5.0 -
- 5.0
-
5.0
-
ns
outputs; nQ = LOW and
[3]
nQ = HIGH; CL = 50 pF;
see Figure 7, Figure 8,
Figure 9 and Figure 10
CEXT = 28 pF; REXT = 2 kΩ
VCC = 3.0 V to 3.6 V
- 115 240 -
300
-
300 ns
VCC = 4.5 V to 5.5 V
CEXT = 0.01 µF;
REXT = 10 kΩ
VCC = 3.0 V to 3.6 V
VCC = 4.5 V to 5.5 V
CEXT = 0.1 µF;
REXT = 10 kΩ;
- 100 200 -
240
-
240 ns
90 100 110 90
110
85
115 µs
90 100 110 90
110
85
115 µs
VCC = 3.0 V to 3.6 V
0.9 1 1.1 0.9
1.1
0.85
1.15 ms
VCC = 4.5 V to 5.5 V
trtrig
retrigger
nA to nB; CEXT = 100 pF;
time
REXT = 1 kΩ; CL = 50 pF;
see Figure 8 and Figure 10
0.9 1 1.1 0.9
1.1
0.85
1.15 ms
VCC = 3.0 V to 3.6 V
- 60 -
-
-
-
-
ns
VCC = 4.5 V to 5.5 V
- 39 -
-
-
-
-
ns
nA to nB; CEXT = 0.01 µF;
REXT = 1 kΩ; CL = 50 pF;
see Figure 8 and Figure 10
VCC = 3.0 V to 3.6 V
- 1.5 -
-
-
-
-
µs
VCC = 4.5 V to 5.5 V
- 1.2 -
-
-
-
-
µs
CPD
power
CL = 50 pF; fi = 1 MHz;
[4] -
57 -
-
-
-
-
pF
dissipation VI = GND to VCC
capacitance
74AHC_AHCT123A_2
Product data sheet
Rev. 02 — 18 January 2008
© NXP B.V. 2008. All rights reserved.
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