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參數資料
| 型號： | SN74HC251DRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 編、解碼器及復用、解復用 |
| 英文描述： | HC/UH SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDSO16 |
| 封裝： | GREEN, PLASTIC, SOIC-16 |
| 文件頁數： | 1/21頁 |
| 文件大小： | 759K |
| 代理商： | SN74HC251DRG4 |
SN54HC251, SN74HC251
DATA SELECTORS/MULTIPLEXERS
WITH 3STATE OUTPUTS
SCLS132E DECEMBER 1982 REVISED SEPTEMBER 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D 3-State Version of ’HC151
D Wide Operating Voltage Range of 2 V to 6 V
D High-Current 3-State Outputs Interface
Directly With System Bus or Can Drive Up
To 15 LSTTL Loads
D Low Power Consumption, 80-A Max ICC
D Typical tpd = 9 ns
D ±6-mA Output Drive at 5 V
D Low Input Current of 1 A Max
D Perform Parallel-to-Serial Conversion
D 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
Tube of 40
SN74HC251D
SOIC D
Reel of 2500
SN74HC251DR
HC251
SOIC D
Reel of 250
SN74HC251DT
HC251
40
°C to 85°C
SOP NS
Reel of 2000
SN74HC251NSR
HC251
40 C to 85 C
SSOP DB
Reel of 2000
SN74HC251DBR
HC251
Tube of 90
SN74HC251PW
TSSOP PW
Reel of 2000
SN74HC251PWR
HC251
TSSOP PW
Reel of 250
SN74HC251PWT
HC251
CDIP J
Tube of 25
SNJ54HC251J
55
°C to 125°C
CFP W
Tube of 150
SNJ54HC251W
55 C to 125 C
LCCC FK
Tube of 55
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)
32
1 20 19
910 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)
D2
D3
NC
C
B
D4
OE
GND
NC
V
CC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
D3
D2
D1
D0
Y
W
OE
GND
VCC
D4
D5
D6
D7
A
B
C
NC No internal connection
Copyright
2003, 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.
On products compliant to MILPRF38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
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| SN74HC253DTG4 | HC SERIES, DUAL 4 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16 |
| SNJ54HC258FK | HC/UH SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, INVERTED OUTPUT, CQCC20 |
| SNJ54HC266WR | HC/UH SERIES, QUAD 3-INPUT XNOR GATE, CDFP14 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| SN74HC251DT | 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 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（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 |
| SN74HC251DTE4 | 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 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（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 |
| SN74HC251DTG4 | 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 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（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 |
| SN74HC251N | 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 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（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 |
| SN74HC251N | 制造商:Texas Instruments 功能描述:Decoder / Encoder / Multiplexer / Demult |
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