Philips 74hc hct14 DATASHEETS
INTEGRATED CIRCUITS
DATA SH EET
For a complete data sheet, please also download:
•The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications
•The IC06 74HC/HCT/HCU/HCMOS Logic Package Information
•The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines
74HC/HCT14
Hex inverting Schmitt trigger
Product specification
File under Integrated Circuits, IC06
September 1993
Philips Semiconductors Product specification
Hex inverting Schmitt trigger 74HC/HCT14
FEATURES
• Output capability: standard
• ICC category: SSI
GENERAL DESCRIPTION
The 74HC/HCT14 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL).
They are specified in compliance with JEDEC standard no. 7A.
The 74HC/HCT14 provide six inverting buffers with Schmitt-trigger action. They are capable of transforming slowly
changing input signals into sharply defined, jitter-free output signals.
QUICK REFERENCE DATA
GND = 0 V; T
= 25 °C; tr= tf= 6 ns
amb
SYMBOL PARAMETER CONDITIONS
t
PHL
C
C
I
PD
/ t
PLH
propagation delay nA to nY CL= 15 pF; VCC= 5 V 12 17 ns
input capacitance 3.5 3.5 pF
power dissipation capacitance per gate notes 1 and 2 7 8 pF
Notes
1. C
is used to determine the dynamic power dissipation (PDin µW):
PD
PD= CPD× V
2
× fi+ ∑ (CL× V
CC
2
× fo) where:
CC
fi= input frequency in MHz
fo= output frequency in MHz
CL= output load capacitance in pF
VCC= supply voltage in V
∑ (CL× V
2. For HC the condition is VI= GND to V
2
× fo) = sum of outputs
CC
CC
For HCT the condition is VI= GND to VCC− 1.5 V
ORDERING INFORMATION
“74HC/HCT/HCU/HCMOS Logic Package Information”
See
.
TYPICAL
UNIT
HC HCT
September 1993 2
Philips Semiconductors Product specification
Hex inverting Schmitt trigger 74HC/HCT14
PIN DESCRIPTION
PIN NO. SYMBOL NAME AND FUNCTION
1, 3, 5, 9, 11, 13 1A to 6A data inputs
2, 4, 6, 8, 10, 12 1Y to 6Y data outputs
7 GND ground (0 V)
14 V
CC
positive supply voltage
Fig.1 Pin configuration. Fig.2 Logic symbol. Fig.3 IEC logic symbol.
FUNCTION TABLE
INPUT OUTPUT
nA nY
L
H
Notes
1. H = HIGH voltage level
L = LOW voltage level
APPLICATIONS
• Wave and pulse shapers
• Astable multivibrators
• Monostable multivibrators
Fig.4 Functional diagram. Fig.5 Logic diagram
(one Schmitt trigger).
H
L
September 1993 3
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