74VHCT14A Hex Schmitt Inverter
December 1998
Revised March 1999
74VHCT14A
Hex Schmitt Inverter
General Description
The VHCT14A is an advanced high speed CMOS Hex
Schmitt Inverter fabricated with silicon gate CMOS technol-
ogy. The VHCT14A contains six independent inverters
which are capable of transforming slowly changing input
signals into sharply defined, jitter-free output signals.
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掳C
s
High noise immunity: V
IH
=
2.0V, V
IL
=
0.8V
s
Power down protection is provided on all inputs and out-
puts
s
Low noise: V
OLP
=
1.0V (max)
s
Low power dissipation:
I
CC
=
2
碌A
(max) @ T
A
=
25掳C
s
Pin and function compatible with 74HCT14
Ordering Code:
Order Number
74VHCT14AM
74VHCT14ASJ
74VHCT14AMTC
74VHCT14AN
Package Number
M14A
M14D
MTC14
N14A
Package Description
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150鈥?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鈥?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
Connection Diagram
Pin Descriptions
Pin Names
A
n
O
n
Description
Inputs
Outputs
Truth Table
A
L
H
O
H
L
漏 1999 Fairchild Semiconductor Corporation
DS500147.prf
www.fairchildsemi.com
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