SN74AS157D [TI]
QUADRUPLE 1-OF-2 DATA SELECTORS/MULTIPLEXERS; 翻两番1 - OF- 2数据选择器/多路复用器
| 型号： | SN74AS157D |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | QUADRUPLE 1-OF-2 DATA SELECTORS/MULTIPLEXERS |
| 文件： | 总18页 (文件大小：554K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SN54ALS157A, SN54ALS158
SN74ALS157A, SN74ALS158, SN74AS157, SN74AS158
QUADRUPLE 1-OF-2 DATA SELECTORS/MULTIPLEXERS
SDAS081C – APRIL 1982 – REVISED DECEMBER 1994
SN54ALS157A, SN54ALS158 . . . J PACKAGE
SN74ALS157A, SN74ALS158,
SN74AS157, SN74AS158 . . . D OR N PACKAGE
• Buffered Inputs and Outputs
• Package Options Include Plastic
Small-Outline (D) Packages, Ceramic Chip
Carriers (FK), and Standard Plastic (N) and
Ceramic (J) 300-mil DIPs
(TOP VIEW)
V
G
A/B
1A
1B
1Y
2A
2B
2Y
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
CC
description
4A
4B
4Y
3A
3B
3Y
These data selectors/multiplexers contain
inverters and drivers to supply full data selection
to the four output gates. A separate strobe (G)
input is provided. A 4-bit word is selected from one
of two sources and is routed to the four outputs.
The ′ALS157A and SN74AS157 present true
data. The ′ALS158 and SN74AS158 present
inverted data to minimize propagation delay time.
SN54ALS157A, SN54ALS158 . . . FK PACKAGE
(TOP VIEW)
The SN54ALS157A and SN54ALS158 are
characterized for operation over the full military
temperature range of –55°C to 125°C. The
SN74ALS157A, SN74ALS158, SN74AS157, and
SN74AS158 are characterized for operation from
0°C to 70°C.
3
2
1
20 19
18
4A
4B
NC
4Y
3A
1B
1Y
NC
2A
2B
4
5
6
7
8
17
16
15
14
9 10 11 12 13
NC – No internal connection
FUNCTION TABLE
OUTPUT Y
′ALS157A ′ALS158
SN74AS157 SN74AS158
INPUTS
DATA
G
A/B
A
X
L
B
X
X
X
L
H
L
L
L
L
X
L
L
L
H
H
L
L
H
X
X
H
L
H
H
H
L
H
H
Copyright 1994, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54ALS157A, SN54ALS158
SN74ALS157A, SN74ALS158, SN74AS157, SN74AS158
QUAD 1-OF-2 DATA SELECTORS/MULTIPLEXERS
SDAS081C – APRIL 1982 – REVISED DECEMBER 1994
†
logic symbols
′ALS157A, SN74AS157
′ALS158, SN74AS158
15
1
15
EN
G1
EN
G1
G
G
1
A/B
A/B
2
2
1A
1B
2A
2B
3A
3B
4A
4B
MUX
1
1A
1B
2A
2B
3A
3B
4A
4B
MUX
4
7
4
7
1
1
3
1Y
2Y
3Y
4Y
3
1Y
2Y
3Y
4Y
1
5
5
6
6
11
10
14
13
11
10
14
13
9
9
12
12
†
These symbols are in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Pin numbers shown are for the D, J, and N packages.
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54ALS157A, SN54ALS158
SN74ALS157A, SN74ALS158, SN74AS157, SN74AS158
QUAD 1-OF-2 DATA SELECTORS/MULTIPLEXERS
SDAS081C – APRIL 1982 – REVISED DECEMBER 1994
logic diagrams (positive logic)
′ALS157A
′ALS158
2
2
1A
1A
4
7
4
7
1Y
2Y
3Y
4Y
1Y
2Y
3Y
4Y
3
3
5
1B
1B
2A
5
2A
6
6
2B
2B
3A
11
11
3A
9
9
10
10
14
3B
3B
4A
14
4A
12
12
13
13
4B
4B
15
1
15
G
1
G
A/B
A/B
SN74AS157
SN74AS158
2
2
1A
1A
4
4
7
1Y
2Y
3Y
4Y
1Y
2Y
3Y
4Y
3
3
5
1B
1B
2A
5
2A
7
9
6
6
2B
2B
3A
11
11
3A
9
10
10
14
3B
3B
4A
14
4A
12
12
13
13
15
1
4B
4B
15
G
G
1
A/B
A/B
Pin numbers shown are for the D, J, and N packages.
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54ALS157A, SN54ALS158
SN74ALS157A, SN74ALS158, SN74AS157, SN74AS158
QUAD 1-OF-2 DATA SELECTORS/MULTIPLEXERS
SDAS081C – APRIL 1982 – REVISED DECEMBER 1994
†
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
CC
Input voltage, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
I
Operating free-air temperature range, T : SN54ALS157A, SN54ALS158 . . . . . . . . . . . . . . –55°C to 125°C
A
SN74ALS157A, SN74ALS158 . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
recommended operating conditions
SN54ALS157A
SN54ALS158
SN74ALS157A
SN74ALS158
UNIT
MIN NOM
MAX
MIN NOM
MAX
V
V
V
Supply voltage
4.5
2
5
5.5
4.5
2
5
5.5
V
V
CC
High-level input voltage
Low-level input voltage
High-level output current
Low-level output current
Operating free-air temperature
IH
0.7
–0.4
4
0.8
–0.4
8
V
IL
I
I
mA
mA
°C
OH
OL
T
A
–55
125
0
70
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
SN54ALS157A
SN54ALS158
SN74ALS157A
SN74ALS158
PARAMETER
TEST CONDITIONS
UNIT
‡
‡
MIN TYP
MAX
MIN TYP
MAX
V
V
V
V
= 4.5 V,
I = –18 mA
–1.2
–1.2
V
V
IK
CC
I
= 4.5 V to 5.5 V,
I
I
I
= –0.4 mA
= 4 mA
V
CC
–2
V
CC
–2
OH
CC
OH
OL
OL
0.25
0.4
0.25
0.35
0.4
0.5
V
OL
V
CC
= 4.5 V
V
= 8 mA
I
I
I
I
V
V
V
V
= 5.5 V,
= 5.5 V,
= 5.5 V,
= 5.5 V,
V = 7 V
0.1
20
0.1
mA
µA
I
CC
CC
CC
CC
I
V = 2.7 V
I
20
IH
IL
V = 0.4 V
I
–0.1
–112
11
–0.1
–112
11
mA
mA
§
V
O
= 2.25 V
–20
–30
O
′ALS157A
′ALS158
6
5
6
5
I
V
CC
= 5.5 V,
See Note 1
mA
CC
10
10
‡
§
All typical values are at V
= 5 V, T = 25°C.
A
CC
The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, I
.
OS
NOTE 1:
I
is measured with 4.5 V applied to all inputs and all outputs open.
CC
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54ALS157A, SN54ALS158
SN74ALS157A, SN74ALS158, SN74AS157, SN74AS158
QUAD 1-OF-2 DATA SELECTORS/MULTIPLEXERS
SDAS081C – APRIL 1982 – REVISED DECEMBER 1994
switching characteristics (see Figure 1)
V
C
R
= 5 V,
= 50 pF,
= 500 Ω,
= 25°C
V
C
R
= 4.5 V to 5.5 V,
= 50 pF,
CC
L
L
CC
L
L
= 500 Ω,
FROM
TO
(OUTPUT)
†
PARAMETER
(INPUT)
UNIT
T
A
T
A
= MIN to MAX
′ALS157A
SN54ALS157A SN74ALS157A
TYP
9
MIN
4
MAX
17
MIN
4
MAX
14
t
t
t
t
t
t
PLH
PHL
PLH
PHL
PLH
PHL
A or B
ns
ns
ns
Y
Y
Y
6
2
15
2
12
15
9
7
28
7
24
A/B
G
4
20
4
17
14
10
7
25
7
20
4
18
4
13
†
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
switching characteristics (see Figure 1)
V
C
R
= 5 V,
= 50 pF,
= 500 Ω,
= 25°C
V
C
R
= 4.5 V to 5.5 V,
= 50 pF,
CC
L
L
CC
L
L
= 500 Ω,
FROM
TO
(OUTPUT)
†
PARAMETER
(INPUT)
UNIT
T
A
T
A
= MIN to MAX
′ALS158
SN54ALS158
SN74ALS158
TYP
9
MIN
4
MAX
18
MIN
4
MAX
15
8
t
t
t
t
t
t
PLH
PHL
PLH
PHL
PLH
PHL
A or B
ns
ns
ns
Y
Y
Y
5
2
12
2
13
13
13
13
5
22
5
18
18
18
18
A/B
G
5
22
5
5
22
5
5
22
5
†
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54ALS157A, SN54ALS158
SN74ALS157A, SN74ALS158, SN74AS157, SN74AS158
QUAD 1-OF-2 DATA SELECTORS/MULTIPLEXERS
SDAS081C – APRIL 1982 – REVISED DECEMBER 1994
†
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
CC
Input voltage, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
I
Operating free-air temperature range, T : SN74AS157, SN74AS158 . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
A
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
recommended operating conditions
SN74AS157
SN74AS158
UNIT
MIN NOM
MAX
V
V
V
Supply voltage
4.5
2
5
5.5
V
V
CC
High-level input voltage
Low-level input voltage
High-level output current
Low-level output current
Operating free-air temperature
IH
0.8
–2
20
70
V
IL
I
mA
mA
°C
OH
OL
I
T
A
0
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
SN74AS157
SN74AS158
PARAMETER
TEST CONDITIONS
UNIT
‡
MIN TYP
MAX
V
V
V
V
V
V
= 4.5 V,
I = –18 mA
–1.2
V
V
V
IK
CC
CC
CC
I
= 4.5 V to 5.5 V,
= 4.5 V,
I
= –2 mA
= 20 mA
V
CC
–2
OH
OL
OH
OL
I
0.35
0.5
0.2
A/B
I
I
V
= 5.5 V,
= 5.5 V,
V = 7 V
I
mA
CC
CC
A, B, or G
A/B
0.1
40
I
V
V = 2.7 V
I
µA
IH
IL
A, B, or G
A/B
20
–1
I
I
I
V
CC
V
CC
V
CC
= 5.5 V,
= 5.5 V,
= 5.5 V
V = 0.4 V
I
mA
mA
mA
A, B, or G
–0.5
–112
28
§
V
O
= 2.25 V
–30
O
SN74AS157
SN74AS158
17.5
15.6
CC
22.5
‡
§
All typical values are at V
= 5 V, T = 25°C.
A
CC
The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, I
.
OS
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54ALS157A, SN54ALS158
SN74ALS157A, SN74ALS158, SN74AS157, SN74AS158
QUAD 1-OF-2 DATA SELECTORS/MULTIPLEXERS
SDAS081C – APRIL 1982 – REVISED DECEMBER 1994
switching characteristics (see Figure 1)
V
C
R
= 4.5 V to 5.5 V,
= 50 pF,
CC
L
L
= 500 Ω,
FROM
TO
(OUTPUT)
†
PARAMETER
(INPUT)
UNIT
T
A
= MIN to MAX
SN74AS157
MIN
1
MAX
6
t
t
t
t
t
t
PLH
PHL
PLH
PHL
PLH
PHL
A or B
ns
ns
ns
Y
Y
Y
1
5.5
11
2
A/B
G
2
10
2
10.5
7.5
2
†
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
switching characteristics (see Figure 1)
V
C
R
= 4.5 V to 5.5 V,
= 50 pF,
CC
L
L
= 500 Ω,
= MIN to MAX
FROM
TO
(OUTPUT)
†
PARAMETER
(INPUT)
UNIT
T
A
SN74AS158
MIN
1
MAX
t
t
t
t
t
t
5
4.5
9.5
10.5
6.5
10
PLH
PHL
PLH
PHL
PLH
PHL
A or B
ns
ns
ns
Y
Y
Y
1
2
A/B
G
2
2
2
†
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54ALS157A, SN54ALS158
SN74ALS157A, SN74ALS158, SN74AS157, SN74AS158
QUAD 1-OF-2 DATA SELECTORS/MULTIPLEXERS
SDAS081C – APRIL 1982 – REVISED DECEMBER 1994
PARAMETER MEASUREMENT INFORMATION
SERIES 54ALS/74ALS AND 54AS/74AS DEVICES
7 V
R
= R1 = R2
V
CC
L
S1
R1
R
L
Test
Point
From Output
Under Test
From Output
Under Test
Test
Point
Test
Point
From Output
Under Test
C
C
L
R
L
R2
L
C
L
(see Note A)
(see Note A)
(see Note A)
LOAD CIRCUIT FOR
BI-STATE
TOTEM-POLE OUTPUTS
LOAD CIRCUIT
FOR OPEN-COLLECTOR OUTPUTS
LOAD CIRCUIT
FOR 3-STATE OUTPUTS
3.5 V
3.5 V
Timing
Input
High-Level
1.3 V
1.3 V
1.3 V
Pulse
0.3 V
0.3 V
t
h
t
w
t
su
3.5 V
3.5 V
0.3 V
Data
Input
Low-Level
1.3 V
1.3 V
1.3 V
1.3 V
Pulse
0.3 V
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VOLTAGE WAVEFORMS
PULSE DURATIONS
3.5 V
0.3 V
Output
Control
(low-level
enabling)
1.3 V
1.3 V
3.5 V
t
PZL
Input
1.3 V
1.3 V
t
PLZ
0.3 V
PHL
3.5 V
t
Waveform 1
S1 Closed
(see Note B)
t
PLH
1.3 V
V
OH
In-Phase
Output
1.3 V
1.3 V
1.3 V
V
OL
0.3 V
V
OL
t
PHZ
t
PLH
t
PZH
t
PHL
V
OH
V
Waveform 2
S1 Open
(see Note B)
OH
OL
Out-of-Phase
Output
(see Note C)
1.3 V
1.3 V
0.3 V
V
0 V
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS
NOTES: A.
C includes probe and jig capacitance.
L
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. When measuring propagation delay items of 3-state outputs, switch S1 is open.
D. All input pulses have the following characteristics: PRR ≤ 1 MHz, t = t = 2 ns, duty cycle = 50%.
r
f
E. The outputs are measured one at a time with one transition per measurement.
Figure 1. Load Circuits and Voltage Waveforms
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PACKAGE OPTION ADDENDUM
www.ti.com
17-Oct-2005
PACKAGING INFORMATION
Orderable Device
Status (1)
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
LCCC
CDIP
CFP
Drawing
5962-86869012A
5962-8686901EA
5962-8686901FA
5962-88625012A
5962-8862501EA
5962-8862501FA
SN54ALS157AJ
SN54ALS158J
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
FK
J
20
16
16
20
16
16
16
16
16
1
1
1
1
1
1
1
1
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
Level-NC-NC-NC
Level-NC-NC-NC
Level-NC-NC-NC
Level-NC-NC-NC
Level-NC-NC-NC
Level-NC-NC-NC
Level-NC-NC-NC
Level-NC-NC-NC
W
FK
J
LCCC
CDIP
CFP
W
J
CDIP
CDIP
SOIC
J
SN74ALS157AD
D
40 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SN74ALS157ADE4
SN74ALS157ADR
SN74ALS157ADRE4
SN74ALS157AN
ACTIVE
ACTIVE
ACTIVE
ACTIVE
SOIC
SOIC
SOIC
PDIP
D
D
D
N
16
16
16
16
40 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
25
25
Pb-Free
(RoHS)
CU NIPDAU Level-NC-NC-NC
SN74ALS157AN3
SN74ALS157ANE4
OBSOLETE
ACTIVE
PDIP
PDIP
N
N
16
16
TBD
Call TI
Call TI
Pb-Free
(RoHS)
CU NIPDAU Level-NC-NC-NC
SN74ALS157ANSR
SN74ALS157ANSRE4
SN74ALS158D
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
SO
NS
NS
D
16
16
16
16
16
16
16
16
16
16
16
16
16
16
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SO
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SOIC
SOIC
SOIC
SOIC
PDIP
PDIP
SO
40 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SN74ALS158DE4
SN74ALS158DR
SN74ALS158DRE4
SN74ALS158N
D
40 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
D
2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
D
2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
N
25
Pb-Free
(RoHS)
CU NIPDAU Level-NC-NC-NC
SN74ALS158NE4
SN74ALS158NSR
SN74ALS158NSRE4
SN74AS157D
N
25
Pb-Free
(RoHS)
CU NIPDAU Level-NC-NC-NC
NS
NS
D
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SO
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SOIC
SOIC
SOIC
SOIC
40 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SN74AS157DE4
SN74AS157DR
D
40 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
D
2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SN74AS157DRE4
D
2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
17-Oct-2005
Orderable Device
Status (1)
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
Drawing
no Sb/Br)
SN74AS157N
ACTIVE
PDIP
N
16
25
25
Pb-Free
(RoHS)
CU NIPDAU Level-NC-NC-NC
SN74AS157N3
SN74AS157NE4
OBSOLETE
ACTIVE
PDIP
PDIP
N
N
16
16
TBD
Call TI
Call TI
Pb-Free
(RoHS)
CU NIPDAU Level-NC-NC-NC
SN74AS157NSR
SN74AS157NSRE4
SN74AS158D
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
SO
SO
NS
NS
D
16
16
16
16
16
16
16
16
16
16
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SOIC
SOIC
SOIC
SOIC
PDIP
PDIP
SO
40 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SN74AS158DE4
SN74AS158DR
SN74AS158DRE4
SN74AS158N
D
40 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
D
2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
D
2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
N
25
Pb-Free
(RoHS)
CU NIPDAU Level-NC-NC-NC
SN74AS158NE4
SN74AS158NSR
SN74AS158NSRE4
N
25
Pb-Free
(RoHS)
CU NIPDAU Level-NC-NC-NC
NS
NS
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SO
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SNJ54ALS157AFK
SNJ54ALS157AJ
SNJ54ALS157AW
SNJ54ALS158FK
SNJ54ALS158J
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
LCCC
CDIP
CFP
FK
J
20
16
16
20
16
16
1
1
1
1
1
1
TBD
TBD
TBD
TBD
TBD
TBD
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
Level-NC-NC-NC
Level-NC-NC-NC
Level-NC-NC-NC
Level-NC-NC-NC
Level-NC-NC-NC
Level-NC-NC-NC
W
FK
J
LCCC
CDIP
CFP
SNJ54ALS158W
W
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan
-
The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS
&
no Sb/Br)
-
please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Addendum-Page 2
PACKAGE OPTION ADDENDUM
www.ti.com
17-Oct-2005
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
Addendum-Page 3
MECHANICAL DATA
MLCC006B – OCTOBER 1996
FK (S-CQCC-N**)
LEADLESS CERAMIC CHIP CARRIER
28 TERMINAL SHOWN
A
B
NO. OF
TERMINALS
**
18 17 16 15 14 13 12
MIN
MAX
MIN
MAX
0.342
(8,69)
0.358
(9,09)
0.307
(7,80)
0.358
(9,09)
19
20
11
10
9
20
28
44
52
68
84
0.442
(11,23)
0.458
(11,63)
0.406
(10,31)
0.458
(11,63)
21
B SQ
22
0.640
(16,26)
0.660
(16,76)
0.495
(12,58)
0.560
(14,22)
8
A SQ
23
0.739
(18,78)
0.761
(19,32)
0.495
(12,58)
0.560
(14,22)
7
24
25
6
0.938
(23,83)
0.962
(24,43)
0.850
(21,6)
0.858
(21,8)
5
1.141
(28,99)
1.165
(29,59)
1.047
(26,6)
1.063
(27,0)
26 27 28
1
2
3
4
0.080 (2,03)
0.064 (1,63)
0.020 (0,51)
0.010 (0,25)
0.020 (0,51)
0.010 (0,25)
0.055 (1,40)
0.045 (1,14)
0.045 (1,14)
0.035 (0,89)
0.045 (1,14)
0.035 (0,89)
0.028 (0,71)
0.022 (0,54)
0.050 (1,27)
4040140/D 10/96
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. This package can be hermetically sealed with a metal lid.
D. The terminals are gold plated.
E. Falls within JEDEC MS-004
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enhancements, improvements, and other changes to its products and services at any time and to discontinue
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TI warrants performance of its hardware products to the specifications applicable at the time of sale in
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相关型号：
SN74AS157DRE4
Multiplexer, AS Series, 4-Func, 2 Line Input, 1 Line Output, True Output, TTL, PDSO16, GREEN,PLASTIC, SO-16
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