DATA SH EET
Product specification
File under Integrated Circuits, IC06 December 1990
INTEGRATED CIRCUITS
74HC/HCT253
Dual 4-input multiplexer; 3-state
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
December 1990 2
Philips Semiconductors Product specification
Dual 4-input multiplexer; 3-state 74HC/HCT253
FEATURES
•Non-inverting data path
•3-state outputs for bus interface
•and multiplex expansion
•Common select inputs
•Separate output enable inputs
•Output capability: bus driver
•ICC category: MSI
GENERAL DESCRIPTION
The 74HC/HCT253 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/HCT253 have two identical 4-input multiplexers
with 3-state outputs which select two bits from four sources
selected by common data select inputs (S0,S
1
).
When the individual output enable (1OE, 2OE) inputs of
the 4-input multiplexers are HIGH, the outputs are forced
to the high impedance OFF-state. The “253” is the logic
implementation of a 2-pole, 4-position switch, where the
position of the switch is determined by the logic levels
applied to S0and S1.
The logic equations for the outputs are:
1Y=1OE(1l0.S1.S0+1I1.S1.S0+1I2.S1.S0+1I3.S1.S0)
2Y=2OE(2l0.S1.S0+2I1.S1.S0+2I2.S1.S0+2I3.S1.S0)
APPLICATIONS
•Data selectors
•Data multiplexers
QUICK REFERENCE DATA
GND = 0 V; Tamb = 25 °C; tr= tf= 6 ns
Notes
1. CPD is used to determine the dynamic power dissipation (PDin µW):
PD= CPD ×VCC2×fi+∑(CL×VCC2×fo) where:
fi= input frequency in MHz
fo= output frequency in MHz
∑(CL×VCC2×fo) = sum of outputs
CL= output load capacitance in pF
VCC = supply voltage in V
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 CL= 15 pF; VCC = 5 V
1In, 2Into nY; 17 17 ns
Snto nY 18 19 ns
CIinput capacitance 3.5 3.5 pF
CPD power dissipation capacitance per multiplexer notes 1 and 2 55 55 pF
December 1990 3
Philips Semiconductors Product specification
Dual 4-input multiplexer; 3-state 74HC/HCT253
PIN DESCRIPTION
PIN NO. SYMBOL NAME AND FUNCTION
1, 15 1OE, 2OE output enable inputs (active LOW)
14, 2 S0,S
1common data select inputs
7, 9 1Y, 2Y 3-state multiplexer outputs
8 GND ground (0 V)
6, 5, 4, 3 1I0to 1I3data inputs from source 1
10, 11, 12, 13 2I0to 2I3data inputs from source 2
16 VCC positive supply voltage
Fig.1 Pin configuration. Fig.2 Logic symbol. Fig.3 IEC logic symbol.
December 1990 4
Philips Semiconductors Product specification
Dual 4-input multiplexer; 3-state 74HC/HCT253
FUNCTION TABLE
NOTES
1. H = HIGH voltage level
L = LOW voltage level
X = don’t care
Z = high impedance OFF-state
SELECT INPUTS DATA INPUTS OUTPUT ENABLE OUTPUT
S0S1nI0nI1nI2nI3nOE nY
XXXXXXH Z
L
L
H
H
L
L
L
L
L
H
X
X
X
X
L
H
X
X
X
X
X
X
X
X
L
L
L
L
L
H
L
H
L
L
H
H
H
H
H
H
X
X
X
X
X
X
X
X
L
H
X
X
X
X
L
H
L
L
L
L
L
H
L
H
Fig.4 Functional diagram.
Fig.5 Logic diagram.
December 1990 5
Philips Semiconductors Product specification
Dual 4-input multiplexer; 3-state 74HC/HCT253
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
.
Output capability: bus driver
ICC category: MSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; tr= tf= 6 ns; CL= 50 pF
SYMBOL PARAMETER
Tamb (°C)
UNIT
TEST CONDITIONS
74HC
VCC
(V) WAVEFORMS
+25 −40 to +85 −40
to +125
min. typ. max. min. max. min. max.
tPHL/ tPLH propagation delay
1Into nY;
2Into nY
55
20
16
175
35
30
220
44
37
265
53
45
ns 2.0
4.5
6.0
Fig.6
tPHL/ tPLH propagation delay
Snto nY 58
21
17
175
35
30
220
44
37
265
53
45
ns 2.0
4.5
6.0
Fig.6
tPZH/ tPZL 3-state output enable time
nOE to nY 30
11
9
100
20
17
125
25
21
150
30
26
ns 2.0
4.5
6.0
Fig.7
tPHZ/ tPLZ 3-state output disable time
nOE to nY 41
15
12
150
30
26
190
38
33
225
45
38
ns 2.0
4.5
6.0
Fig.7
tTHL/ tTLH output transition time 14
5
4
60
12
10
75
15
13
90
18
15
ns 2.0
4.5
6.0
Fig.6
December 1990 6
Philips Semiconductors Product specification
Dual 4-input multiplexer; 3-state 74HC/HCT253
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
.
Output capability: bus driver
ICC category: MSI
Note to HCT types
The value of additional quiescent supply current (∆ICC) for a unit load of 1 is given in the family specifications.
To determine ∆ICC per input, multiply this value by the unit load coefficient shown in the table below.
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; tr= tf= 6 ns; CL= 50 pF
INPUT UNIT LOAD COEFFICIENT
1In
2In
nOE
S0
S1
0.40
0.40
1.10
1.10
1.10
SYMBOL PARAMETER
Tamb (°C)
UNIT
TEST CONDITIONS
74HCT VCC
(V) WAVEFORMS
+25 −40 to +85 −40 to +125
min. typ. max. min. max. min. max.
tPHL/ tPLH propagation delay
1Into nY;
2Into nY
20 38 48 57 ns 4.5 Fig.6
tPHL/ tPLH propagation delay
Snto nY 22 40 50 60 ns 4.5 Fig.6
tPZH/ tPZL 3-state output enable time
nOE to nY 14 30 38 45 ns 4.5 Fig.7
tPHZ/ tPLZ 3-state output disable time
nOE to nY 13 30 38 45 ns 4.5 Fig.7
tTHL/ tTLH output transition time 5 12 15 18 ns 4.5 Fig.6
December 1990 7
Philips Semiconductors Product specification
Dual 4-input multiplexer; 3-state 74HC/HCT253
AC WAVEFORMS
PACKAGE OUTLINES
See
“74HC/HCT/HCU/HCMOS Logic Package Outlines”
.
Fig.6 Waveforms showing the input (1In,2I
n
) to output (1Y, 2Y) propagation delays and the output transition
times.
(1) HC : VM= 50%; VI= GND to VCC.
HCT: VM= 1.3 V; VI= GND to 3 V.
Fig.7 Waveforms showing the 3-state enable and disable times.
(1) HC : VM= 50%; VI= GND to VCC.
HCT: VM= 1.3 V; VI= GND to 3 V.
Philips Semiconductors - PIP - 74HC253;74HCT253; Dual 4-input multiplexer; 3-state
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74HC253;74HCT253;
Dual 4-input
multiplexer; 3-state
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Datasheet
Type number Title Publication
release date Datasheet status Page
count File
size
(kB)
Datasheet
74HC253;74HCT253 Dual 4-input
multiplexer; 3-
state
12/1/1990 Product
specification 5 48
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PDF
File
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Additional datasheet info
To complete the device datasheet with package and family information, also download the following PDF files.
The "Logic Package Information" document is required to determine in which package(s) this device is available.
Document Description
1
Download
PDF
File
HCT_FAMILY_SPECIFICATIONS HC/T Family Specifications, The IC06 74HC/HCT/HCMOS Logic
Family Specifications
2
Download
PDF
File
HCT_PACKAGE_INFO HC/T Package Info, The IC06 74HC/HCT/HCMOS Logic Package
Information
3
Download
PDF
File
HCT_PACKAGE_OUTLINES HC/T Package Outlines, The IC06 74HC/HCT/HCMOS Logic
Package Outlines
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Parametrics
Type number Package Description Propagation
Delay(ns) Voltage No.
of
Pins
Power
Dissipation
Considerations
Logic
Switching
Levels
Output
Drive
Capability
74HC253D SOT109
(SO16)
Dual 4-Input
Multiplexer
(3-State) 15 5 Volts
+16 Low Power or
Battery
Applications CMOS Low
74HC253DB SOT338-1
(SSOP16)
Dual 4-Input
Multiplexer
(3-State) 15 5 Volts
+16 Low Power or
Battery
Applications CMOS Low
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Philips Semiconductors - PIP - 74HC253;74HCT253; Dual 4-input multiplexer; 3-state
74HC253N SOT38-1
(DIP16)
Dual 4-Input
Multiplexer
(3-State) 15 5 Volts
+16 Low Power or
Battery
Applications CMOS Low
74HCT253D SOT109
(SO16)
Dual 4-Input
Multiplexer;
TTL
Enabled (3-
State)
15 5 Volts
+16 Low Power or
Battery
Applications TTL Low
74HCT253DB SOT338-1
(SSOP16)
Dual 4-Input
Multiplexer;
TTL
Enabled (3-
State)
15 5 Volts
+16 Low Power or
Battery
Applications TTL Low
74HCT253N SOT38-1
(DIP16)
Dual 4-Input
Multiplexer;
TTL
Enabled (3-
State)
15 5 Volts
+16 Low Power or
Battery
Applications TTL Low
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Products, packages, availability and ordering
Type number North
American
type number
Ordering code
(12NC) Marking/Packing
Download
PDF
File
Discretes
packing info
Package Device status Buy online
74HC253D 74HC253D 9337 138 60652 Standard Marking
* Bulk Pack,
CECC
SOT109
(SO16) Full production
-
74HC253D-T 9337 138 60653 Standard Marking
* Reel Pack,
SMD, 13", CECC
SOT109
(SO16) Full production
-
74HC253DB 74HC253DB 9351 898 60112 Standard Marking
* Bulk Pack
SOT338-
1
(SSOP16)
Full production
-
74HC253DB-
T 9351 898 60118 Standard Marking
* Reel Pack,
SMD, 13"
SOT338-
1
(SSOP16)
Full production
-
74HC253N 74HC253N 9336 695 40652 Standard Marking
* Bulk Pack,
CECC
SOT38-1
(DIP16) Full production
-
74HCT253D 74HCT253D 9337 138 70652 Standard Marking
* Bulk Pack,
CECC
SOT109
(SO16) Full production
-
74HCT253D-
T 9337 138 70653 Standard Marking
* Reel Pack,
SMD, 13", CECC
SOT109
(SO16) Full production
-
74HCT253DB 74HCT253DB 9351 898 50112 Standard Marking
* Bulk Pack
SOT338-
1
(SSOP16)
Full production
-
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Philips Semiconductors - PIP - 74HC253;74HCT253; Dual 4-input multiplexer; 3-state
74HCT253DB-
T 9351 898 50118 Standard Marking
* Reel Pack,
SMD, 13"
SOT338-
1
(SSOP16)
Full production
-
74HCT253N 74HCT253N 9336 701 70652 Standard Marking
* Bulk Pack,
CECC
SOT38-1
(DIP16) Full production
-
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Support & tools
Download
PDF
File
HC/T Family Specifications, The IC06 74HC/HCT/HCMOS Logic Family Specifications(date 01-Mar-98)
Download
PDF
File
HC/T User Guide(date 01-Nov-97)
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