74HC1G14 Просмотр технического описания (PDF) - Philips Electronics
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74HC1G14 Datasheet PDF : 20 Pages
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Philips Semiconductors
Inverting Schmitt-triggers
Product specification
74HC1G14; 74HCT1G14
FEATURES
• Wide operating voltage range from 2.0 to 6.0 V
• Symmetrical output impedance
• High noise immunity
• Low power dissipation
• Balanced propagation delays
• Very small 5 pins package
• Applications
– Wave and pulse shapers
– Astable multivibrators
– Monostable multivibrators
• Output capability: standard.
DESCRIPTION
The 74HC1G/HCT1G14 is a high-speed Si-gate CMOS
device.
The 74HC1G/HCT1G14 provides the inverting buffer
function with Schmitt-trigger action. These devices are
capable of transforming slowly changing input signals into
sharply defined, jitter-free output signals.
The standard output currents are 1⁄2 compared to the
74HC/HCT14.
QUICK REFERENCE DATA
GND = 0 V; Tamb = 25 °C; tr = tf = 6.0 ns.
SYMBOL
PARAMETER
CONDITIONS
tPHL/tPLH
CI
CPD
propagation delay A to Y
input capacitance
power dissipation capacitance
CL = 15 pF VCC = 5 V
notes 1 and 2
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 Volts;
∑ (CL × VCC2 × fo) = sum of outputs.
2. For HC1G the condition is VI = GND to VCC.
For HCT1G the condition is VI = GND to VCC − 1.5 V.
TYPICAL
HC1G
10
1.5
20
HCT1G
15
1.5
22
UNIT
ns
pF
pF
FUNCTION TABLE
See note 1.
INPUT
A
L
H
Note
1. H = HIGH voltage level;
L = LOW voltage level.
OUTPUT
Y
H
L
2002 May 15
2
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