CD74HC158 [TI]
High Speed CMOS Logic Quad 2-Input Multiplexers; 高速CMOS逻辑四路2输入多路复用器
| 型号： | CD74HC158 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | High Speed CMOS Logic Quad 2-Input Multiplexers |
| 文件： | 总8页 (文件大小：42K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CD74HC157, CD74HCT157,
CD74HC158, CD74HCT158
Data sheet acquired from Harris Semiconductor
SCHS153
High Speed CMOS Logic
Quad 2-Input Multiplexers
September 1997
Features
• Common Select Inputs
• Separate Enable Inputs
• Buffered inputs and Outputs
• Fanout (Over Temperature Range)
[ /Title
(CD74H
C157,
CD74H
CT157,
CD74H
C158,
CD74H
CT158)
/Subject
(High
- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
o
o
• Wide Operating Temperature Range . . . -55 C to 125 C
• Balanced Propagation Delay and Transition Times
• Significant Power Reduction Compared to LSTTL
Logic ICs
• HC Types
- 2V to 6V Operation
Speed
- High Noise Immunity: N = 30%, N = 30%of V
IL IH CC
at
V
= 5V
CC
• HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility,
V = 0.8V (Max), V = 2V (Min)
IL IH
- CMOS Input Compatibility, I ≤ 1µA at V , V
OL OH
l
Pinout
CD74HC157, CD74HCT157, CD74HC158, CD74HCT158
(PDIP, SOIC)
TOP VIEW
S
1
2
3
4
5
6
7
8
16 V
15 E
CC
1I
0
1
1I
14 4I
13 4I
0
1
1Y
2I
2I
12 4Y
0
1
11 3I
10 3I
0
1
2Y
9
3Y
GND
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
File Number 1642.2
Copyright © Harris Corporation 1997
1
CD74HC157, CD74HCT157, CD74HC158, CD74HCT158
Description
The Harris CD74HC157, CD74HCT157, CD74HC158 and
CD74HCT158 are quad 2-input multiplexers which select
four bits of data from two sources under the control of a
common Select input (S). The Enable input (E) is active Low.
When (E) is High, all of the outputs in the 158, the inverting
type, (1Y-4Y) are forced High and in the 157, the non-
inverting type, all of the outputs (1Y-4Y) are forced Low,
regardless of all other input conditions.
Moving data from two groups of registers to four common
output busses is a common use of these devices. The state
of the Select input determines the particular register from
which the data comes. They can also be used as function
generators.
Ordering Information
PKG.
o
PART NUMBER TEMP. RANGE ( C) PACKAGE
NO.
E16.3
E16.3
E16.3
E16.3
CD74HC157E
CD74HCT157E
CD74HC158E
CD74HCT158E
CD74HC157M
CD74HCT157M
CD74HC158M
NOTES:
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
16 Ld PDIP
16 Ld PDIP
16 Ld PDIP
16 Ld PDIP
16 Ld SOIC M16.15
16 Ld SOIC M16.15
16 Ld SOIC M16.15
1. When ordering, use the entire part number. Add the suffix 96 to
obtain the variant in the tape and reel.
2. Wafer or die for this part number is available which meets all elec-
trical specifications. Please contact your local sales office or
Harris customer service for ordering information.
2
CD74HC157, CD74HCT157, CD74HC158, CD74HCT158
Functional Diagram
HC/HCT HC/HCT
157
158
2
3
1I
1I
4
0
1Y
1Y
1
5
6
7
2I
2I
0
2Y
3Y
4Y
2Y
3Y
4Y
1
11
10
3I
3I
9
0
1
14
13
4I
4I
12
0
1
1
15
S
E
TRUTH TABLE
DATA INPUTS
OUTPUT
SELECT
INPUT
ENABLE
157
158
Y
E
H
L
L
L
L
S
X
L
I0
X
L
I1
X
X
X
L
Y
L
H
L
H
L
H
X
X
H
L
L
H
H
H
H
H
L
NOTE: H = High Voltage Level, L = Low Voltage Level, X = Don’t Care
3
CD74HC157, CD74HCT157, CD74HC158, CD74HCT158
Absolute Maximum Ratings
Thermal Information
o
DC Supply Voltage, V
. . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 7V Thermal Resistance (Typical, Note 3)
θ
( C/W)
CC
DC Input Diode Current, I
JA
IK
PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SOIC Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
90
For V < -0.5V or V > V
+ 0.5V. . . . . . . . . . . . . . . . . . . . . .±20mA
OK
For V < -0.5V or V > V
I
I
CC
115
o
DC Output Diode Current, I
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 150 C
Maximum Storage Temperature Range . . . . . . . . . .-65 C to 150 C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300 C
o
o
+ 0.5V . . . . . . . . . . . . . . . . . . . .±20mA
O
O
CC
o
DC Output Source or Sink Current per Output Pin, I
O
For V > -0.5V or V < V
+ 0.5V . . . . . . . . . . . . . . . . . . . .±25mA
O
O
CC
(SOIC - Lead Tips Only)
DC V
or Ground Current, I
I
. . . . . . . . . . . . . . . . . .±50mA
CC
CC or GND
Operating Conditions
o
o
Temperature Range (T ) . . . . . . . . . . . . . . . . . . . . . -55 C to 125 C
A
Supply Voltage Range, V
CC
HC Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2V to 6V
HCT Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.5V to 5.5V
DC Input or Output Voltage, V , V . . . . . . . . . . . . . . . . . 0V to V
I
O
CC
Input Rise and Fall Time
2V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000ns (Max)
4.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500ns (Max)
6V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400ns (Max)
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
3. θ is measured with the component mounted on an evaluation PC board in free air.
JA
DC Electrical Specifications
TEST
CONDITIONS
o
o
o
o
o
25 C
TYP
-40 C TO 85 C -55 C TO 125 C
V
(V)
CC
PARAMETER
HC TYPES
SYMBOL
V (V)
I
I
(mA)
MIN
MAX
MIN
MAX
MIN
MAX
UNITS
O
High Level Input
Voltage
V
-
-
-
2
4.5
6
1.5
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1.5
-
1.5
-
-
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
µA
IH
3.15
-
-
3.15
-
-
3.15
4.2
4.2
4.2
-
Low Level Input
Voltage
V
-
2
-
0.5
1.35
1.8
-
-
0.5
1.35
1.8
-
-
0.5
1.35
1.8
-
IL
4.5
6
-
-
-
-
-
-
High Level Output
Voltage
CMOS Loads
V
V
or V
IH IL
-0.02
2
1.9
1.9
1.9
OH
-0.02
-0.02
-
4.5
6
4.4
-
4.4
-
4.4
-
5.9
-
5.9
-
5.9
-
High Level Output
Voltage
TTL Loads
-
-
-
-
-
-
-
-4
4.5
6
3.98
-
3.84
-
3.7
-
-5.2
0.02
0.02
0.02
-
5.48
-
5.34
-
5.2
-
Low Level Output
Voltage
CMOS Loads
V
V
or V
IH IL
2
-
-
-
-
-
-
-
0.1
0.1
0.1
-
-
-
-
-
-
-
-
0.1
0.1
0.1
-
-
-
-
-
-
-
-
0.1
0.1
0.1
-
OL
4.5
6
Low Level Output
Voltage
TTL Loads
-
4
4.5
6
0.26
0.26
±0.1
0.33
0.33
±1
0.4
0.4
±1
5.2
-
Input Leakage
Current
I
V
or
6
I
CC
GND
Quiescent Device
Current
I
V
GND
or
0
6
-
-
8
-
80
-
160
µA
CC
CC
4
CD74HC157, CD74HCT157, CD74HC158, CD74HCT158
DC Electrical Specifications (Continued)
TEST
CONDITIONS
o
o
o
o
o
25 C
-40 C TO 85 C -55 C TO 125 C
V
CC
PARAMETER
HCT TYPES
SYMBOL
V (V)
I
I
(mA)
(V)
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNITS
O
High Level Input
Voltage
V
-
-
-
-
4.5 to
5.5
2
-
-
-
-
-
0.8
-
2
-
-
0.8
-
2
-
-
0.8
-
V
V
V
IH
Low Level Input
Voltage
V
4.5 to
5.5
IL
High Level Output
Voltage
CMOS Loads
V
V
V
or V
-0.02
4.5
4.5
4.5
4.5
4.4
4.4
4.4
OH
IH
IH
IL
High Level Output
Voltage
TTL Loads
-4
3.98
-
-
-
-
3.84
-
3.7
-
V
V
V
Low Level Output
Voltage
CMOS Loads
V
or V
0.02
4
-
-
0.1
0.26
-
-
0.1
0.33
-
-
0.1
0.4
OL
IL
Low Level Output
Voltage
TTL Loads
Input Leakage
Current
I
V
and
0
0
-
5.5
5.5
-
-
-
±0.1
8
-
-
-
±1
80
-
-
-
±1
µA
µA
µA
I
CC
GND
Quiescent Device
Current
I
V
or
-
160
490
CC
CC
GND
Additional Quiescent
Device Current Per
Input Pin: 1 Unit Load
∆I
V
4.5 to
5.5
100
360
450
CC
CC
-2.1
NOTE: For dual-supply systems theoretical worst case (V = 2.4V, V
I
= 5.5V) specification is 1.8mA.
CC
HCT Input Loading Table
UNIT LOADS
INPUT
HCT157
0.95
0.6
HCT158
0.4
I (All)
E
0.6
S
3
2.8
NOTE: Unit Load is ∆I
360µA max at 25 C.
limit specified in DC Electrical Table, e.g.,
CC
o
Switching Specifications Input t , t = 6ns
r
f
o
o
o
o
o
25 C
-40 C TO 85 C -55 C TO 125 C
TEST
SYMBOL CONDITIONS
V
CC
(V)
PARAMETER
MIN TYP MAX
MIN
MAX
MIN
MAX
UNITS
HC/HCT157 TYPES
Propagation Delay (Figure 1)
t
t
C = 50pF
2
4.5
5
-
-
-
-
-
-
-
125
25
-
-
-
-
-
-
155
31
-
-
-
-
-
-
190
38
-
ns
ns
ns
ns
ns
PLH, PHL
L
Data to Output
HC157
C =15pF
10
12
-
L
HCT157
-
-
-
C = 50pF
6
21
26
32
L
5
CD74HC157, CD74HCT157, CD74HC158, CD74HCT158
Switching Specifications Input t , t = 6ns (Continued)
r
f
o
o
o
o
o
25 C
-40 C TO 85 C -55 C TO 125 C
TEST
SYMBOL CONDITIONS
V
CC
(V)
PARAMETER
MIN TYP MAX
MIN
MAX
170
34
-
MIN
MAX
205
41
-
UNITS
ns
Enable to Output
t
t
C = 50pF
2
4.5
5
-
-
-
-
-
-
-
-
-
-
-
-
135
27
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
PLH, PHL
L
ns
HC157
C =15pF
11
12
-
ns
L
HCT157
-
-
-
ns
C = 50pF
6
2
23
145
29
-
29
180
36
-
35
220
44
-
ns
L
Select to Output
t
t
C = 50pF
-
ns
PLH, PHL
L
4.5
5
-
ns
HC157
C =15pF
12
15
-
ns
L
HCT157
-
-
-
ns
C = 50pF
L
6
5
25
31
38
ns
Power Dissipation
C
-
PD
Capacitance (Notes 4, 5)
HC157
-
-
62
70
-
-
-
-
-
-
-
-
-
-
pF
pF
HCT157
HC158
HC/HCT158 TYPES
Data to Output
t
t
t
t
C = 50pF
2
4.5
5
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
140
28
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
175
35
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
210
42
-
ns
PLH, PHL
L
C =15pF
11
13
-
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
L
HCT 158
-
-
-
C = 50pF
6
2
24
160
32
-
30
200
40
-
36
240
48
-
L
Enable to Output
t
C = 50pF
-
PLH, PHL
L
4.5
5
-
HC158
C =15pF
13
15
-
L
HCT 158
-
-
-
C = 50pF
6
2
27
150
30
-
34
190
38
-
41
225
45
-
L
Select to Output
t
C = 50pF
-
PLH, PHL
L
4.5
5
-
HC158
C =15pF
12
14
-
L
HCT 158
-
-
-
C = 50pF
6
2
26
75
15
13
33
95
19
16
38
110
22
19
L
Output Transition Time
t
t
C = 50pF
L
-
TLH, THL
4.5
6
-
-
Power Dissipation
C
-
5
PD
Capacitance (Notes 4, 5)
HC158
HCT 158
-
-
-
35
35
-
-
-
-
-
-
-
-
-
-
-
-
-
pF
pF
pF
Input Capacitance
NOTES:
C
C = 50pF
-
10
10
10
IN
L
4. C
is used to determine the dynamic power consumption, per multiplexer.
2
PD
5. P = V
f (C
PD
+ C ) where f = input frequency, C = output load capacitance, V
= supply voltage.
CC
D
CC
i
L
i
L
6
Test Circuits and Waveforms
t = 6ns
t = 6ns
t = 6ns
t = 6ns
r
f
r
f
V
3V
CC
90%
50%
10%
2.7V
1.3V
0.3V
INPUT
INPUT
GND
GND
t
t
t
t
THL
TLH
THL
TLH
90%
1.3V
90%
50%
10%
INVERTING
OUTPUT
INVERTING
OUTPUT
10%
t
t
PLH
PHL
t
t
PLH
PHL
FIGURE 1. HC AND HCU TRANSITION TIMES AND PROPAGA-
TION DELAY TIMES, COMBINATION LOGIC
FIGURE 2. HCT TRANSITION TIMES AND PROPAGATION
DELAY TIMES, COMBINATION LOGIC
7
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accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
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Copyright 1998, Texas Instruments Incorporated
相关型号：
CD74HC158M96
Multiplexer, HC/UH Series, 4-Func, 2 Line Input, 1 Line Output, Inverted Output, CMOS, PDSO16, SOIC-16
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