74VHCT08A Quad 2-Input AND Gate
July 1997
Revised March 1999
74VHCT08A
Quad 2-Input AND Gate
General Description
The VHCT08A is an advanced high speed CMOS 2 Input
AND Gate fabricated with silicon gate CMOS technology. It
achieves the high-speed operation similar to equivalent
Bipolar Schottky TTL while maintaining the CMOS low
power dissipation.
The internal circuit is composed of 4 stages including buffer
output, which provide high noise immunity and stable out-
put.
Protection circuits ensure that 0V to 7V can be applied to
the input pins without regard to the supply voltage and to
the output pins with V
CC
=
0V. These circuits prevent
device destruction due to mismatched supply and input/
output voltages. This device can be used to interface 3V to
5V systems and two supply systems such as battery
backup.
Features
s
High speed: t
PD
5.0 ns (typ) at T
A
=
25擄C
s
High noise immunity: V
IH
=
2.0V, V
IL
=
0.8V
s
Power down protection is provided on all inputs and
outputs
s
Low noise: V
OLP
=
0.8V (max)
s
Low power dissipation:
I
CC
=
2
碌A(chǔ)
(max) @ T
A
=
25擄C
s
Pin and function compatible with 74HCT08
Ordering Code:
Order Number
74VHCT08AM
74VHCT08ASJ
74VHCT08AMTC
74VHCT08AN
Package Number
M14A
M14D
MTC14
N14A
Package Description
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow
14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter 鈥淴鈥?to the ordering code
Logic Symbol
IEEE/IEC
Connection Diagram
Pin Descriptions
Pin Names
A
n
, B
n
O
n
Description
Inputs
Outputs
Truth Table
A
L
L
H
H
B
L
H
L
H
O
L
L
L
H
漏 1999 Fairchild Semiconductor Corporation
DS500025.prf
www.fairchildsemi.com