November 1992
Revised February 2005
74VHC02
Quad 2-Input NOR Gate
General Description
Features
The VHC02 is an advanced high-speed CMOS 2-Input
NOR 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 3
stages, including buffer output, which provide high noise
immunity and stable output. An input protection circuit
insures that 0V to 7V can be applied to the input pins with-
out regard to the supply voltage. This device can be used
to interface 5V to 3V systems and two supply systems such
as battery backup. This circuit prevents device destruction
due to mismatched supply and input voltages.
■ High Speed: tPD 3.6 ns (typ) at VCC 5V
■ Low power dissipation: ICC A (max) at TA 25 C
2
■ High noise immunity: VNIH VNIL 28% VCC (min)
■ Power down protection is provided on all inputs
■ Low noise: VOLP 0.8V (max)
■ Pin and function compatible with 74HC02
Ordering Code:
Package
Order Number
Package Description
Number
74VHC02M
M14A
M14A
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
74VHC02MX_NL
(Note 1)
Pb-Free 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
74VHC02SJ
M14D
MTC14
MTC14
Pb-Free 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74VHC02MTC
14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74VHC02MTCX_NL
(Note 1)
Pb-Free 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm
Wide
74VHC02N
N14A
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 “X” to the ordering code.
Pb-Free package per JEDEC J-STD-020B.
Note 1: “_NL” indicates Pb-Free package (per JEDEC J-STD-020B). Device available in Tape and Reel only.
Logic Symbol
Connection Diagram
IEEE/IEC
Truth Table
A
L
B
L
O
H
L
Pin Descriptions
Pin Names
Description
Inputs
Outputs
L
H
L
An, Bn
On
H
H
L
H
L
© 2005 Fairchild Semiconductor Corporation
DS011515
www.fairchildsemi.com