CD74AC20 Datasheet, PDF (1/5 Pages) Texas Instruments – Dual 4-Input NAND Gate

Data sheet acquired from Harris Semiconductor
SCHS229A
September 1998 - Revised May 2000
[ /Title
(CD74
AC20,
CD74
ACT20
)
/Sub-
ject
(Dual
4-Input
NAND
Gate)
/Autho
r ()
/Key-
words
(Har-
ris
Semi-
con-
ductor,
Advan
ced
CMOS
, Harris
Semi-
con-
ductor,
Advan
ced
TTL)
/Cre-
ator ()
Features
• Typical Propagation Delay
- 6ns at V_CC = 5V, T_A = 25^oC, C_L = 50pF
• Exceeds 2kV ESD Protection MIL-STD-883, Method
3015
• SCR-Latchup-Resistant CMOS Process and Circuit
Design
• Speed of Bipolar FAST™/AS/S with Significantly
Reduced Power Consumption
• Balanced Propagation Delays
• AC Types Feature 1.5V to 5.5V Operation and
Balanced Noise Immunity at 30% of the Supply
• ±24mA Output Drive Current
- Fanout to 15 FAST™ ICs
- Drives 50Ω Transmission Lines
Pinout
CD54ACT20
(CERDIP)
CD74AC20, CD74ACT20
(PDIP, SOIC)
TOP VIEW
1A 1
1B 2
NC 3
1C 4
1D 5
1Y 6
GND 7
14 V_CC
13 2D
12 2C
11 NC
10 2B
9 2A
8 2Y
CD74AC20,
CD54/74ACT20
Dual 4-Input NAND Gate
Description
The CD74AC20 and ’ACT20 are dual 4-input NAND gates that
utilize Advanced CMOS Logic technology.
Ordering Information
PART
NUMBER
TEMP.
RANGE (^oC)
PACKAGE
CD74AC20E
-55 to 125
14 Ld PDIP
CD74AC20M
-55 to 125
14 Ld SOIC
CD54ACT20F3A
-55 to 125
14 Ld CERDIP
CD74ACT20E
-55 to 125
14 Ld PDIP
CD74ACT20M
-55 to 125
14 Ld SOIC
NOTES:
1. When ordering, use the entire part number. Add the suffix 96 to
obtain the variant in the tape and reel.
2. Wafer and die for this part number is available which meets all elec-
trical specifications. Please contact your local TI sales office or cus-
tomer service for ordering information.
Functional Diagram
1
1A
2
1B
4
1C
5
1D
9
2A
10
2B
12
2C
13
2D
6
1Y
8
2Y
GND = 7
V_CC = 14
NC = 3, 11
TRUTH TABLE
INPUTS
nA
nB
nC
nD
L
X
X
X
X
L
X
X
X
X
L
X
X
X
X
L
H
H
H
H
X = Don’t Care
OUTPUTS
nY
H
H
H
H
L
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
FAST™ is a Trademark of Fairchild Semiconductor.
Copyright © 2000, Texas Instruments Incorporated
1