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74HC14 Datasheet(PDF) 2 Page - NXP Semiconductors

Part No. 74HC14
Description  Hex inverting Schmitt trigger
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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 2 page
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September 1993
2
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; Tamb = 25 °C; tr = tf = 6 ns
Notes
1. CPD is used to determine the dynamic power dissipation (PD in µW):
PD = CPD × VCC2 × fi + ∑ (CL × VCC2 × fo) where:
fi = input frequency in MHz
fo = output frequency in MHz
CL = output load capacitance in pF
VCC = supply voltage in V
∑ (CL × VCC2 × fo) = sum of outputs
2. For HC the condition is VI = GND to VCC
For HCT the condition is VI = GND to VCC − 1.5 V
ORDERING INFORMATION
See
“74HC/HCT/HCU/HCMOS Logic Package Information”.
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
HC
HCT
tPHL/ tPLH
propagation delay nA to nY
CL = 15 pF; VCC = 5 V
12
17
ns
CI
input capacitance
3.5
3.5
pF
CPD
power dissipation capacitance per gate
notes 1 and 2
7
8
pF




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