SN74HC251DBE4
更新时间:2024-09-18 15:09:11
品牌:TI
描述:HC/UH SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDSO16, PLASTIC, SSOP-16
SN74HC251DBE4 概述
HC/UH SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDSO16, PLASTIC, SSOP-16 复用器/解复用器
SN74HC251DBE4 规格参数
是否无铅: | 不含铅 | 是否Rohs认证: | 符合 |
生命周期: | Obsolete | 零件包装代码: | SOIC |
包装说明: | SSOP, | 针数: | 16 |
Reach Compliance Code: | compliant | HTS代码: | 8542.39.00.01 |
风险等级: | 5.56 | Is Samacsys: | N |
系列: | HC/UH | JESD-30 代码: | R-PDSO-G16 |
JESD-609代码: | e4 | 长度: | 6.2 mm |
逻辑集成电路类型: | MULTIPLEXER | 湿度敏感等级: | 1 |
功能数量: | 1 | 输入次数: | 8 |
输出次数: | 1 | 端子数量: | 16 |
最高工作温度: | 85 °C | 最低工作温度: | -40 °C |
输出特性: | 3-STATE | 输出极性: | COMPLEMENTARY |
封装主体材料: | PLASTIC/EPOXY | 封装代码: | SSOP |
封装形状: | RECTANGULAR | 封装形式: | SMALL OUTLINE, SHRINK PITCH |
峰值回流温度(摄氏度): | 260 | 传播延迟(tpd): | 375 ns |
认证状态: | Not Qualified | 座面最大高度: | 2 mm |
最大供电电压 (Vsup): | 6 V | 最小供电电压 (Vsup): | 2 V |
标称供电电压 (Vsup): | 5 V | 表面贴装: | YES |
技术: | CMOS | 温度等级: | INDUSTRIAL |
端子面层: | NICKEL PALLADIUM GOLD | 端子形式: | GULL WING |
端子节距: | 0.65 mm | 端子位置: | DUAL |
处于峰值回流温度下的最长时间: | NOT SPECIFIED | 宽度: | 5.3 mm |
Base Number Matches: | 1 |
SN74HC251DBE4 数据手册
通过下载SN74HC251DBE4数据手册来全面了解它。这个PDF文档包含了所有必要的细节,如产品概述、功能特性、引脚定义、引脚排列图等信息。
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SCLS132E − DECEMBER 1982 − REVISED SEPTEMBER 2003
SN54HC251 . . . J OR W PACKAGE
SN74HC251 . . . D, DB, N, NS, OR PW PACKAGE
(TOP VIEW)
D
D
D
3-State Version of ’HC151
Wide Operating Voltage Range of 2 V to 6 V
High-Current 3-State Outputs Interface
Directly With System Bus or Can Drive Up
To 15 LSTTL Loads
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
D3
D2
D1
D0
Y
W
OE
GND
V
CC
D4
D5
D6
D7
A
D
D
D
D
D
D
Low Power Consumption, 80-µA Max I
Typical t = 9 ns
pd
6-mA Output Drive at 5 V
CC
Low Input Current of 1 µA Max
Perform Parallel-to-Serial Conversion
B
C
Complementary Outputs Provide True and
Inverted Data
SN54HC251 . . . FK PACKAGE
(TOP VIEW)
description/ordering information
These data selectors/multiplexers contain full
binary decoding to select 1-of-8 data sources and
feature strobe-controlled complementary 3-state
outputs.
3
2
1
20 19
18 D5
D1
D0
NC
Y
4
5
6
7
8
17
16
15
14
D6
NC
D7
A
The 3-state outputs can interface with and drive
data lines of bus-organized systems. With all but
one of the common outputs disabled (in the
high-impedance state), the low impedance of the
single enabled output drives the bus line to a high
or low logic level. Both outputs are controlled by
the output-enable (OE) input. The outputs are
disabled when OE is high.
W
9 10 11 12 13
NC − No internal connection
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
PDIP − N
SOIC − D
Tube of 25
Tube of 40
Reel of 2500
Reel of 250
Reel of 2000
Reel of 2000
Tube of 90
Reel of 2000
Reel of 250
Tube of 25
Tube of 150
Tube of 55
SN74HC251N
SN74HC251N
SN74HC251D
SN74HC251DR
SN74HC251DT
SN74HC251NSR
SN74HC251DBR
SN74HC251PW
SN74HC251PWR
SN74HC251PWT
SNJ54HC251J
HC251
SOP − NS
HC251
HC251
−40°C to 85°C
SSOP − DB
TSSOP − PW
HC251
CDIP − J
CFP − W
LCCC − FK
SNJ54HC251J
SNJ54HC251W
SNJ54HC251FK
−55°C to 125°C
SNJ54HC251W
SNJ54HC251FK
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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Copyright 2003, Texas Instruments Incorporated
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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ꢊ ꢋꢌꢋ ꢀꢍ ꢎ ꢍꢅ ꢌꢏꢐꢀ ꢑ ꢒꢓ ꢎꢌꢔ ꢕ ꢎ ꢍꢖ ꢍꢐ ꢀ
ꢗꢔ ꢌ ꢄ ꢘ ꢙꢀꢌꢋꢌ ꢍ ꢏꢓꢌ ꢕꢓ ꢌꢀ
SCLS132E − DECEMBER 1982 − REVISED SEPTEMBER 2003
FUNCTION TABLE
INPUTS
SELECT
OUTPUTS
Y
W
OE
C
X
L
B
X
L
A
X
L
H
L
L
L
L
L
L
L
L
Z
Z
D0
D1
D2
D3
D4
D5
D6
D7
D0
D1
D2
D3
D4
D5
D6
D7
L
L
H
L
L
H
H
L
L
H
L
H
H
H
H
L
H
L
H
H
H
D0, D1 . . . D7 = the level of the respective D input
2
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SCLS132E − DECEMBER 1982 − REVISED SEPTEMBER 2003
logic diagram (positive logic)
7
OE
11
A
10
B
9
C
4
D0
TG
3
D1
TG
2
D2
TG
5
Y
1
D3
TG
15
D4
TG
6
W
14
TG
D5
13
D6
TG
12
D7
TG
Pin numbers shown are for the D, DB, J, N, NS, PW, and W packages.
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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ꢗꢔ ꢌ ꢄ ꢘ ꢙꢀꢌꢋꢌ ꢍ ꢏꢓꢌ ꢕꢓ ꢌꢀ
SCLS132E − DECEMBER 1982 − REVISED SEPTEMBER 2003
†
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
CC
I
Input clamp current, I (V < 0 or V > V ) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA
IK
I
CC
Output clamp current, I
(V < 0 or V > V ) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA
OK
O O CC
Continuous output current, I (V = 0 to V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 mA
Continuous current through V
O
O
CC
CC
or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 mA
Package thermal impedance, θ (see Note 2): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73°C/W
JA
DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82°C/W
N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67°C/W
NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64°C/W
PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108°C/W
Storage temperature range, T
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
stg
†
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.
NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions (see Note 3)
SN54HC251
MIN NOM
SN74HC251
MIN NOM
UNIT
MAX
MAX
V
V
Supply voltage
2
1.5
5
6
2
1.5
5
6
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= 2 V
= 4.5 V
= 6 V
3.15
4.2
3.15
4.2
High-level input voltage
V
V
IH
= 2 V
0.5
1.35
1.8
0.5
1.35
1.8
= 4.5 V
= 6 V
V
IL
Low-level input voltage
V
V
Input voltage
0
0
V
V
0
0
V
V
V
V
I
CC
CC
Output voltage
O
CC
CC
V
CC
V
CC
V
CC
= 2 V
1000
500
400
125
1000
500
400
85
= 4.5 V
= 6 V
∆t/∆v
Input transition rise/fall time
ns
T
A
Operating free-air temperature
−55
−40
°C
NOTE 3: All unused inputs of the device must be held at V
or GND to ensure proper device operation. Refer to the TI application report,
CC
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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SCLS132E − DECEMBER 1982 − REVISED SEPTEMBER 2003
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
T
= 25°C
SN54HC251
SN74HC251
A
PARAMETER
TEST CONDITIONS
V
UNIT
CC
MIN
TYP
MAX
MIN
1.9
4.4
5.9
3.7
5.2
MAX
MIN
1.9
MAX
2 V
4.5 V
6 V
1.9 1.998
4.4 4.499
5.9 5.999
4.4
I
= −20 µA
OH
5.9
V
V = V or V
IH
V
OH
OL
I
IL
I
I
= −6 mA
4.5 V
6 V
3.98
5.48
4.3
5.8
3.84
5.34
OH
= −7.8 mA
OH
2 V
0.002
0.001
0.001
0.17
0.15
0.1
0.1
0.1
0.1
0.26
0.26
100
0.5
8
0.1
0.1
0.1
0.1
4.5 V
6 V
I
= 20 µA
OL
0.1
0.1
V
V = V or V
V
I
IH
IL
I
I
= 6 mA
4.5 V
6 V
0.4
0.33
0.33
1000
5
OL
= 7.8 mA
0.4
OL
I
I
I
V = V
I
or 0
6 V
1000
10
nA
µA
µA
pF
I
CC
V
O
= V
or 0,
or 0,
V = V or V
6 V
0.01
OZ
CC
CC
I
IH
= 0
IL
V = V
CC
I
O
6 V
160
10
80
I
C
2 V to 6 V
3
10
10
i
switching characteristics over recommended operating free-air temperature range, C = 50 pF
L
(unless otherwise noted) (see Figure 1)
T
A
= 25°C
TYP
58
21
19
44
17
15
30
10
9
SN54HC251
SN74HC251
FROM
(INPUT)
TO
(OUTPUT)
PARAMETER
V
UNIT
CC
MIN
MAX
205
41
MIN
MAX
300
60
MIN
MAX
256
51
2 V
4.5 V
6 V
A, B, or C
Any D
OE
W or Y
W or Y
W or Y
W or Y
W or Y
35
51
44
t
pd
ns
2 V
195
39
283
57
244
49
4.5 V
6 V
33
48
41
2 V
145
29
210
42
181
36
4.5 V
6 V
t
t
t
ns
ns
ns
en
dis
t
25
36
31
2 V
25
15
14
20
8
195
39
283
57
244
49
4.5 V
6 V
OE
33
48
41
2 V
75
110
22
95
4.5 V
6 V
15
19
6
13
19
16
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
ꢀ ꢁꢂ ꢃꢄ ꢅ ꢆꢂ ꢇꢈ ꢀꢁ ꢉ ꢃ ꢄꢅꢆ ꢂ ꢇ
ꢊ ꢋꢌꢋ ꢀꢍ ꢎ ꢍꢅ ꢌꢏꢐꢀ ꢑ ꢒꢓ ꢎꢌꢔ ꢕ ꢎ ꢍꢖ ꢍꢐ ꢀ
ꢗꢔ ꢌ ꢄ ꢘ ꢙꢀꢌꢋꢌ ꢍ ꢏꢓꢌ ꢕꢓ ꢌꢀ
SCLS132E − DECEMBER 1982 − REVISED SEPTEMBER 2003
switching characteristics over recommended operating free-air temperature range, C = 150 pF
L
(unless otherwise noted) (see Figure 1)
T
A
= 25°C
TYP
72
SN54HC251
SN74HC251
FROM
(INPUT)
TO
(OUTPUT)
PARAMETER
V
UNIT
CC
MIN
MAX
300
60
MIN
MAX
450
90
MIN
MAX
375
75
2 V
4.5 V
6 V
25
A, B, or C
Any D
OE
W or Y
W or Y
W or Y
W or Y
22
52
77
65
t
pd
ns
2 V
59
300
60
450
90
375
75
4.5 V
6 V
21
18
52
77
65
2 V
50
230
46
340
68
285
57
4.5 V
6 V
17
t
t
ns
ns
en
15
40
58
50
2 V
45
210
42
315
63
265
53
4.5 V
6 V
17
t
13
36
53
45
operating characteristics, T = 25°C
A
PARAMETER
TEST CONDITIONS
TYP
UNIT
C
Power dissipation capacitance
No load
70
pF
pd
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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ꢄ
ꢅ
ꢆ
ꢂ
ꢇ
ꢈ
ꢀ
ꢁ
ꢉ
ꢊꢋꢌꢋ ꢀꢍ ꢎꢍ ꢅꢌꢏ ꢐꢀꢑ ꢒꢓ ꢎꢌ ꢔꢕ ꢎꢍ ꢖꢍ ꢐ
ꢃ
ꢄ
ꢅ
ꢆ
ꢂ
ꢇ
ꢀ
ꢀ
ꢗ ꢔꢌ ꢄ ꢘ ꢙꢀꢌꢋꢌ ꢍ ꢏ ꢓꢌ ꢕꢓ ꢌ
SCLS132E − DECEMBER 1982 − REVISED SEPTEMBER 2003
PARAMETER MEASUREMENT INFORMATION
V
CC
PARAMETER
R
C
L
S1
S2
L
50 pF
or
150 pF
t
S1
S2
Open
Closed
Closed
Open
PZH
Test
Point
t
t
1 kΩ
1 kΩ
en
R
L
t
t
t
From Output
Under Test
PZL
PHZ
PLZ
Open
Closed
Open
50 pF
C
dis
L
Closed
(see Note A)
50 pF
or
150 pF
t
or t
−−
Open
Open
pd
t
LOAD CIRCUIT
V
CC
Input
50%
50%
0 V
t
t
PLH
PHL
90%
V
V
OH
In-Phase
Output
90%
50%
10%
50%
10%
OL
t
Output
Control
(Low-Level
Enabling)
t
r
f
V
CC
t
t
PLH
PHL
90%
50%
50%
V
V
OH
90%
0 V
Out-of-Phase
Output
50%
10%
50%
10%
t
t
PLZ
PZL
OL
t
f
t
≈V
CC
≈V
CC
r
Output
50%
Waveform 1
(See Note B)
VOLTAGE WAVEFORMS
PROPAGATION DELAY AND OUTPUT TRANSITION TIMES
10%
V
OL
OH
t
t
PZH
PHZ
V
CC
V
Output
Waveform 2
(See Note B)
90%
90%
90%
Input
50%
10%
50%
10%
50%
0 V
≈0 V
t
t
r
f
VOLTAGE WAVEFORM
INPUT RISE AND FALL TIMES
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES FOR 3-STATE OUTPUTS
NOTES: A.
C includes probe and test-fixture 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. Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following
characteristics: PRR ≤ 1 MHz, Z = 50 Ω, t = 6 ns, t = 6 ns.
O
r
f
D. The outputs are measured one at a time with one input transition per measurement.
E.
F.
G.
t
t
t
and t
and t
and t
are the same as t
.
dis
PLZ
PZL
PLH
PHZ
PZH
PHL
are the same as t
.
en
are the same as t .
pd
Figure 1. Load Circuit and Voltage Waveforms
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PACKAGE OPTION ADDENDUM
www.ti.com
25-Sep-2013
PACKAGING INFORMATION
Orderable Device
Status Package Type Package Pins Package
Eco Plan Lead/Ball Finish
MSL Peak Temp
Op Temp (°C)
Device Marking
Samples
Drawing
Qty
(1)
(2)
(3)
(4/5)
5962-8512501VEA
ACTIVE
CDIP
LCCC
CDIP
J
16
20
16
25
TBD
A42
POST-PLATE
A42
N / A for Pkg Type
N / A for Pkg Type
N / A for Pkg Type
5962-8512501VE
A
SNV54HC251J
85125012A
8512501EA
ACTIVE
ACTIVE
FK
J
1
1
TBD
-55 to 125
-55 to 125
85125012A
SNJ54HC
251FK
TBD
TBD
8512501EA
SNJ54HC251J
SN54HC251J
SN74HC251D
ACTIVE
ACTIVE
CDIP
SOIC
J
16
16
1
A42
N / A for Pkg Type
-55 to 125
-40 to 85
SN54HC251J
D
40
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
HC251
SN74HC251DBR
SN74HC251DBRE4
SN74HC251DBRG4
SN74HC251DE4
SN74HC251DG4
SN74HC251DR
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
SSOP
SSOP
SSOP
SOIC
SOIC
SOIC
SOIC
SOIC
SOIC
SOIC
SOIC
DB
DB
DB
D
16
16
16
16
16
16
16
16
16
16
16
2000
2000
2000
40
Green (RoHS
& no Sb/Br)
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
HC251
HC251
HC251
HC251
HC251
HC251
HC251
HC251
HC251
HC251
HC251
Green (RoHS
& no Sb/Br)
Green (RoHS
& no Sb/Br)
Green (RoHS
& no Sb/Br)
D
40
Green (RoHS
& no Sb/Br)
D
2500
2500
2500
250
Green (RoHS
& no Sb/Br)
SN74HC251DRE4
SN74HC251DRG4
SN74HC251DT
D
Green (RoHS
& no Sb/Br)
D
Green (RoHS
& no Sb/Br)
D
Green (RoHS
& no Sb/Br)
SN74HC251DTE4
SN74HC251DTG4
D
250
Green (RoHS
& no Sb/Br)
D
250
Green (RoHS
& no Sb/Br)
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
25-Sep-2013
Orderable Device
Status Package Type Package Pins Package
Eco Plan Lead/Ball Finish
MSL Peak Temp
Op Temp (°C)
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-55 to 125
Device Marking
Samples
Drawing
Qty
(1)
(2)
(3)
(4/5)
SN74HC251N
SN74HC251NE4
ACTIVE
PDIP
PDIP
N
16
16
16
16
16
16
16
16
16
16
16
16
16
16
20
25
Pb-Free
(RoHS)
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
POST-PLATE
N / A for Pkg Type
SN74HC251N
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
N
25
2000
2000
2000
90
Pb-Free
(RoHS)
N / A for Pkg Type
SN74HC251N
HC251
HC251
HC251
HC251
HC251
HC251
HC251
HC251
HC251
HC251
HC251
HC251
SN74HC251NSR
SN74HC251NSRE4
SN74HC251NSRG4
SN74HC251PW
SO
NS
NS
NS
PW
PW
PW
PW
PW
PW
PW
PW
PW
FK
Green (RoHS
& no Sb/Br)
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
N / A for Pkg Type
SO
Green (RoHS
& no Sb/Br)
SO
Green (RoHS
& no Sb/Br)
TSSOP
TSSOP
TSSOP
TSSOP
TSSOP
TSSOP
TSSOP
TSSOP
TSSOP
LCCC
Green (RoHS
& no Sb/Br)
SN74HC251PWE4
SN74HC251PWG4
SN74HC251PWR
SN74HC251PWRE4
SN74HC251PWRG4
SN74HC251PWT
SN74HC251PWTE4
SN74HC251PWTG4
SNJ54HC251FK
90
Green (RoHS
& no Sb/Br)
90
Green (RoHS
& no Sb/Br)
2000
2000
2000
250
250
250
1
Green (RoHS
& no Sb/Br)
Green (RoHS
& no Sb/Br)
Green (RoHS
& no Sb/Br)
Green (RoHS
& no Sb/Br)
Green (RoHS
& no Sb/Br)
Green (RoHS
& no Sb/Br)
TBD
85125012A
SNJ54HC
251FK
SNJ54HC251J
ACTIVE
CDIP
J
16
1
TBD
A42
N / A for Pkg Type
-55 to 125
8512501EA
SNJ54HC251J
(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.
Addendum-Page 2
PACKAGE OPTION ADDENDUM
www.ti.com
25-Sep-2013
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), Pb-Free (RoHS Exempt), 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.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
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.
(4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
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.
OTHER QUALIFIED VERSIONS OF SN54HC251, SN54HC251-SP, SN74HC251 :
Catalog: SN74HC251, SN54HC251
•
Military: SN54HC251
•
Space: SN54HC251-SP
•
NOTE: Qualified Version Definitions:
Catalog - TI's standard catalog product
•
Addendum-Page 3
PACKAGE OPTION ADDENDUM
www.ti.com
25-Sep-2013
Military - QML certified for Military and Defense Applications
•
•
Space - Radiation tolerant, ceramic packaging and qualified for use in Space-based application
Addendum-Page 4
PACKAGE MATERIALS INFORMATION
www.ti.com
8-Apr-2013
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0
B0
K0
P1
W
Pin1
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant
(mm) W1 (mm)
SN74HC251DBR
SN74HC251DR
SN74HC251PWR
SN74HC251PWT
SSOP
SOIC
DB
D
16
16
16
16
2000
2500
2000
250
330.0
330.0
330.0
330.0
16.4
16.4
12.4
12.4
8.2
6.5
6.9
6.9
6.6
10.3
5.6
2.5
2.1
1.6
1.6
12.0
8.0
8.0
8.0
16.0
16.0
12.0
12.0
Q1
Q1
Q1
Q1
TSSOP
TSSOP
PW
PW
5.6
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
8-Apr-2013
*All dimensions are nominal
Device
Package Type Package Drawing Pins
SPQ
Length (mm) Width (mm) Height (mm)
SN74HC251DBR
SN74HC251DR
SN74HC251PWR
SN74HC251PWT
SSOP
SOIC
DB
D
16
16
16
16
2000
2500
2000
250
367.0
333.2
367.0
367.0
367.0
345.9
367.0
367.0
38.0
28.6
35.0
35.0
TSSOP
TSSOP
PW
PW
Pack Materials-Page 2
MECHANICAL DATA
MSSO002E – JANUARY 1995 – REVISED DECEMBER 2001
DB (R-PDSO-G**)
PLASTIC SMALL-OUTLINE
28 PINS SHOWN
0,38
0,22
0,65
28
M
0,15
15
0,25
0,09
5,60
5,00
8,20
7,40
Gage Plane
1
14
0,25
A
0°–ā8°
0,95
0,55
Seating Plane
0,10
2,00 MAX
0,05 MIN
PINS **
14
16
20
24
28
30
38
DIM
6,50
5,90
6,50
5,90
7,50
8,50
7,90
10,50
9,90
10,50 12,90
A MAX
A MIN
6,90
9,90
12,30
4040065 /E 12/01
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion not to exceed 0,15.
D. Falls within JEDEC MO-150
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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Copyright © 2013, Texas Instruments Incorporated
SN74HC251DBE4 相关器件
型号 | 制造商 | 描述 | 价格 | 文档 |
SN74HC251DBLE | TI | HC/UH SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDSO16, PLASTIC, SSOP-16 | 获取价格 | |
SN74HC251DBR | TI | DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS | 获取价格 | |
SN74HC251DBRE4 | TI | DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS | 获取价格 | |
SN74HC251DBRG4 | TI | HC/UH SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDSO16, GREEN, PLASTIC, SSOP-16 | 获取价格 | |
SN74HC251DE4 | TI | DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS | 获取价格 | |
SN74HC251DR | TI | DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS | 获取价格 | |
SN74HC251DRE4 | TI | DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS | 获取价格 | |
SN74HC251DT | TI | DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS | 获取价格 | |
SN74HC251DTE4 | TI | DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS | 获取价格 | |
SN74HC251DTG4 | TI | HC/UH SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDSO16, GREEN, PLASTIC, SOIC-16 | 获取价格 |
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