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74HCT125 PDF даташит

Спецификация 74HCT125 изготовлена ​​​​«Philips» и имеет функцию, называемую «Quad buffer/line driver 3-state».

Детали детали

Номер произв 74HCT125
Описание Quad buffer/line driver 3-state
Производители Philips
логотип Philips логотип 

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74HCT125 Даташит, Описание, Даташиты
INTEGRATED CIRCUITS
DATA SHEET
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
www.DataSheet4U.com
74HC/HCT125
Quad buffer/line driver; 3-state
Product specification
File under Integrated Circuits, IC06
December 1990









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74HCT125 Даташит, Описание, Даташиты
Philips Semiconductors
Quad buffer/line driver; 3-state
Product specification
74HC/HCT125
FEATURES
Output capability: bus driver
ICC category: MSI
GENERAL DESCRIPTION
The 74HC/HCT125 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/HCT125 are four non-inverting buffer/line drivers with 3-state outputs. The 3-state outputs (nY) are controlled
by the output enable input (nOE). A HIGH at nOE causes the outputs to assume a HIGH impedance OFF-state.
The “125” is identical to the “126” but has active LOW enable inputs.
www.DataShQeUeICt4KUR.cEoFmERENCE DATA
GND = 0 V; Tamb = 25 °C; tr = tf = 6 ns
SYMBOL
PARAMETER
CONDITIONS
tPHL/ tPLH
CI
CPD
propagation delay nA to nY
input capacitance
power dissipation capacitance per buffer
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 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
TYPICAL
HC
9
3.5
22
HCT
12
3.5
24
UNIT
ns
pF
pF
ORDERING INFORMATION
See “74HC/HCT/HCU/HCMOS Logic Package Information”.
December 1990
2









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74HCT125 Даташит, Описание, Даташиты
Philips Semiconductors
Quad buffer/line driver; 3-state
PIN DESCRIPTION
PIN NO.
1, 4, 10, 13
2, 5, 9, 12
3, 6, 8, 11
7
14
SYMBOL
1OE to 4OE
1A to 4A
1Y to 4Y
GND
VCC
Product specification
74HC/HCT125
NAME AND FUNCTION
outputs enable inputs (active LOW)
data inputs
data outputs
ground (0 V)
positive supply voltage
www.DataSheet4U.com
Fig.1 Pin configuration.
Fig.2 Logic symbol.
(a) (b)
Fig.3 IEC logic symbol.
FUNCTION TABLE
INPUTS
OUTPUT
nOE
L
L
H
nA
L
H
X
nY
L
H
Z
Note
1. H = HIGH voltage level
L = LOW voltage level
X = don’t care
Z = high impedance OFF-state
Fig.4 Functional diagram.
Fig.5 Logic diagram (one buffer).
December 1990
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