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PDF 74AHCT123AD Data sheet ( Hoja de datos )
| Número de pieza | 74AHCT123AD | |
| Descripción | Dual retriggerable monostable multivibrator with reset | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
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INTEGRATED CIRCUITS
DATA SHEET
74AHC123A; 74AHCT123A
Dual retriggerable monostable
multivibrator with reset
Product specification
File under Integrated Circuits, IC06
2000 Mar 15
1 page  
Philips Semiconductors
Dual retriggerable monostable multivibrator
with reset
Product specification
74AHC123A;
74AHCT123A
PINNING
1, 9
2, 10
3, 11
4, 12
5, 13
6, 14
7, 15
8
16
PIN
SYMBOL
1A, 2A
1B, 2B
1RD, 2RD
1Q, 2Q
2Q, 1Q
2CEXT, 1CEXT
2REXT/CEXT, 1REXT/CEXT
GND
VCC
DESCRIPTION
trigger inputs (negative-edge triggered)
trigger inputs (positive-edge triggered)
direct reset LOW and trigger action at positive edge
outputs (active LOW)
outputs (active HIGH)
external capacitor connection
external resistor/capacitor connection
ground (0 V)
DC supply voltage
handbook, halfpage
1A 1
1B 2
1RD 3
1Q 4
2Q 5
2CEXT 6
2REXT/CEXT 7
GND 8
16 VCC
15 1REXT/CEXT
14 1CEXT
13 1Q
123
12 2Q
11 2RD
10 2B
9 2A
MNA514
handbook, halfpage
1 1A
9 2A
2 1B
10 2B
3 1RD
11 2RD
1CEXT 14
2CEXT 6
1REXT/CEXT 15
2REXT/CEXT 7
S
Q
T
Q
RD
1Q 13
2Q 5
1Q 4
2Q 12
MNA515
Fig.1 Pin configuration.
Fig.2 Logic diagram.
2000 Mar 15
5
5 Page 
Philips Semiconductors
Dual retriggerable monostable multivibrator
with reset
Product specification
74AHC123A;
74AHCT123A
Family 74AHCT
Over recommended operating conditions; voltage are referenced to GND (ground = 0 V).
TEST CONDITIONS
Tamb (°C)
SYMBOL PARAMETER
OTHER
25 −40 to +85 −40 to +125 UNIT
VCC (V)
MIN. TYP. MAX. MIN. MAX. MIN. MAX.
VIH HIGH-level input
voltage
4.5 to 5.5 2.0 − − 2.0 − 2.0 − V
VIL LOW-level input
voltage
4.5 to 5.5 − − 0.8 − 0.8 − 0.8 V
VOH HIGH-level output VI = VIH or VIL; 4.5
voltage
IO = −50 µA
VI = VIH or VIL; 4.5
IO = −8.0 mA
VOL LOW-level output VI = VIH or VIL; 4.5
voltage
IO = 50 µA
VI = VIH or VIL; 4.5
IO = 8.0 mA
II
input leakage
VI = VCC
5.5
current;
or GND; note 1
REXT/CEXT
input leakage
current;
VI = VCC
or GND
5.5
nA, nB, nRD
ICC quiescent supply VI = VCC 5.5
current
or GND; IO = 0
quiescent supply VI = VCC
4.5
current active
or GND; note 1 5.5
state (per circuit)
4.4 4.5 −
4.4 −
4.4 −
V
3.94 − − 3.8 − 3.70 − V
− 0 0.1 − 0.1 − 0.1 V
− − 0.36 − 0.44 − 0.55 V
− − ±0.25 − ±2.5 − ±10.0 µA
− − ±0.1 − ±1.0 − ±2.0 µA
− − 4.0 − 40 − 80 µA
− 380 500 − 650 − 650 µA
− 560 750 − 975 − 975 µA
CI input capacitance
− − 3 10 − 10 − 10 pF
Note
1. Voltage on pin nREXT/CEXT = 0.5 × VCC and pin REXT/CEXT in OFF-state during test.
2000 Mar 15
11
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet 74AHCT123AD.PDF ] | |
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