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CD74HCT354E Datasheet Preview

CD74HCT354E Datasheet

8-Line to 1-Line Data Selector/Multiplexer/Register

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Semiconductor
CD54HC354, CD74HC354,
CD74HCT354
8-Line to 1-Line Data Selector/Multiplexer/Register
SCHS277D - November 1997 - Revised May 2003
With 3-State Outputs
[ /Title
(CD74
HC354
,
CD74
HCT35
4)
/Sub-
ject
(High
Speed
CMOS
Logic
8-Input
Multip
lexer /
Regis-
Features
Description
• HC/HCT354
- Transparent Data and Select Latches
• Buffered Inputs
• Three-State Complementary Outputs
• Bus Line Driving Capability
Typical Propagation
TA = 25oC
Delay:
VCC
=
5V,
CL
=
15pF,
- Data to Output = 18ns
• Fanout (Over Temperature Range)
- Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
• Wide Operating Temperature Range . . . -55oC to 125oC
• Balanced Propagation Delay and Transition Times
• Significant Power Reduction Compared to LSTTL
Logic ICs
• HC Types
- 2V to 6V Operation
- High Noise Immunity: NIL = 30%, NIH = 30% of VCC
at VCC = 5V
• HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility,
VIL= 0.8V (Max), VIH = 2V (Min)
- CMOS Input Compatibility, Il 1µA at VOL, VOH
The CD54HC354, CD74HC354, and CD74HCT354 are data
selectors/multiplexers that select one of eight sources. In both
types, the data select bits S0, S1 and S2 are stored in
transparent latches that are enabled by a low latch enable
input, LE.
In the HC/HCT354 the data enable input, E, controls
transparent latches that pass data to the outputs when E is
high and latches in new data when E is low.
In both types the three-state outputs are controlled by three
output-enable inputs OE1, OE2, and OE3.
Ordering Information
PART NUMBER
CD54HC354F3A
CD74HC354E
CD74HCT354E
TEMP. RANGE
(oC)
-55 TO 125
-55 to 125
-55 to 125
PACKAGE
20 Ld CERDIP
20 Ld PDIP
20 Ld PDIP
Pinout
CD54HC354
(CERDIP)
CD74HC354, CD74HCT354
(PDIP)
TOP VIEW
D7 1
D6 2
D5 3
D4 4
D3 5
D2 6
D1 7
D0 8
E9
GND 10
20 VCC
19 Y
18 Y
17 OE3
16 OE2
15 OE1
14 S0
13 S1
12 S2
11 LE
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright © 2003, Texas Instruments Incorporated
1




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CD74HCT354E Datasheet Preview

CD74HCT354E Datasheet

8-Line to 1-Line Data Selector/Multiplexer/Register

No Preview Available !

CD54HC354, CD74HC354, CD74HCT354
Functional Diagram
S0
14
S1
13
S2
12
8
D0
7
D1
6
D2
5
D3
4
D4
3
D5
2
D6
1
D7
19
Y
18
Y
11
LE
15
OE1
16
OE2
17
OE3
9
E
SELECT (NOTE 1 )
S2
S1
S0
X
X
X
X
X
X
X
X
X
L
L
L
L
L
L
L
L
H
L
L
H
L
H
L
L
H
L
L
H
H
L
H
H
H
L
L
H
L
L
H
L
H
H
L
H
H
H
L
H
H
L
TRUTH TABLE
INPUTS
ENABLE
DATA
E
X
X
X
L
H
L
H
L
H
L
H
L
H
L
H
L
H
OUTPUT ENABLES
OE1
OE2
OE3
H
X
X
X
H
X
X
X
L
L
L
H
L
L
H
L
L
H
L
L
H
L
L
H
L
L
H
L
L
H
L
L
H
L
L
H
L
L
H
L
L
H
L
L
H
L
L
H
L
L
H
OUTPUTS
Y
Y
Z
Z
Z
Z
Z
Z
D0
D0
D0n
D0n
D1
D1
D1n
D1n
D2
D2
D2n
D2n
D3
D3
D3n
D3n
D4
D4
D4n
D4n
D5
D5
D5n
D5n
D6
D6
D6n
D6n
2


Part Number CD74HCT354E
Description 8-Line to 1-Line Data Selector/Multiplexer/Register
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