參數(shù)資料
型號： SN74HC251DB
廠商： Texas Instruments, Inc.
英文描述： Hex Buffer; Package: SOIC 14 LEAD; No of Pins: 14; Container: Tape and Reel; Qty per Container: 2500
中文描述： 數(shù)據(jù)選擇器/多路復用3態(tài)輸出
文件頁數(shù)： 1/17頁
文件大?。?/td> 492K
代理商： SN74HC251DB
SCLS132E DECEMBER 1982 REVISED SEPTEMBER 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
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
Low Power Consumption, 80-
μ
A Max I
CC
Typical t
pd
= 9 ns
±
6-mA Output Drive at 5 V
Low Input Current of 1
μ
A Max
Perform Parallel-to-Serial Conversion
Complementary Outputs Provide True and
Inverted Data
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.
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.
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP N
Tube of 25
SN74HC251N
SN74HC251N
Tube of 40
SN74HC251D
SOIC D
Reel of 2500
SN74HC251DR
HC251
Reel of 250
SN74HC251DT
40 C to 85 C
SOP NS
Reel of 2000
SN74HC251NSR
HC251
SSOP DB
Reel of 2000
SN74HC251DBR
HC251
Tube of 90
SN74HC251PW
TSSOP PW
Reel of 2000
SN74HC251PWR
HC251
Reel of 250
SN74HC251PWT
CDIP J
Tube of 25
SNJ54HC251J
SNJ54HC251J
55 C to 125 C
CFP W
LCCC FK
Tube of 150
Tube of 55
SNJ54HC251W
SNJ54HC251FK
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.
SN54HC251 . . . J OR W PACKAGE
SN74HC251 . . . D, DB, N, NS, OR PW PACKAGE
(TOP VIEW)
3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
D5
D6
NC
D7
A
D1
D0
NC
Y
W
SN54HC251 . . . FK PACKAGE
(TOP VIEW)
D
D
N
C
B
D
O
G
N
V
C
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
B
C
NC No internal connection
Copyright
2003, Texas Instruments Incorporated
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相關PDF資料
PDF描述
SN54HC251FK 300kHz Switching Regulator with 700V / 1.5A Switch and 500V Maximum Startup; Package: SOIC Wide 16 Minus Pins 2, 14, 15; No of Pins: 13; Container: Rail; Qty per Container: 47
SN54HC251W 300kHz Switching Regulator with 700V / 1.5A Switch and 500V Maximum Startup; Package: SOIC Wide 16 Minus Pins 2, 14, 15; No of Pins: 13; Container: Tape and Reel; Qty per Container: 1000
SNJ54HC251W DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SN74HC368DBR Dual 2-to-4 Decoder/Demultiplexer; Package: SOEIAJ-16; No of Pins: 16; Container: Rail; Qty per Container: 50
SNJ54HC368W HEX BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
相關代理商/技術參數(shù)
參數(shù)描述
SN74HC251DBR 功能描述:編碼器、解碼器、復用器和解復用器 Tri-State Data RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
SN74HC251DBRE4 功能描述:編碼器、解碼器、復用器和解復用器 Data w/3-State Out Selector/Multiplexer RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
SN74HC251DBRG4 功能描述:編碼器、解碼器、復用器和解復用器 Data Selectors Multiplexers RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
SN74HC251DE4 功能描述:編碼器、解碼器、復用器和解復用器 Data w/3-State Out Selector/Multiplexer RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
SN74HC251DG4 功能描述:編碼器、解碼器、復用器和解復用器 Data Selectors Multiplexers RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
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