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參數(shù)資料
| 型號： | DM74LS253N |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | Octal D-Type Latch with 3-STATE Outputs |
| 中文描述： | LS SERIES, DUAL 4 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDIP16 |
| 封裝： | 0.300 INCH, PLASTIC, MS-001, DIP-16 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 56K |
| 代理商： | DM74LS253N |
2000 Fairchild Semiconductor Corporation
DS006416
www.fairchildsemi.com
August 1986
Revised March 2000
D
DM74LS253
3-STATE Data Selector/Multiplexer
General Description
Each of these Schottky-clamped data selectors/multiplex-
ers contains inverters and drivers to supply fully comple-
mentary, on-chip, binary decoding data selection to the
AND-OR gates. Separate output control inputs are pro-
vided for each of the two four-line sections.
The 3-STATE outputs can interface directly with data lines
of bus-organized systems. With all but one of the common
outputs disabled (at a high impedance state), the low
impedance of the single enabled output will drive the bus
line to a HIGH or LOW logic level.
Features
I
3-STATE version of DM74LS153 with same pinout
I
Schottky-diode-clamped transistors
I
Permit multiplexing from N-lines to one line
I
Performs parallel-to-serial conversion
I
Strobe/output control
I
High fanout totem-pole outputs
I
Typical propagation delay
Data to output
12 ns
Select to output
21 ns
I
Typical power dissipation 35 mW
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Function Table
Address Inputs A and B are common to both sections.
H
=
HIGH Level
L
=
LOW Level
X
=
Don't Care
Z
=
High Impedance (OFF)
Order Number
DM74LS253M
DM74LS253N
Package Number
M16A
N16E
Package Description
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Select
Inputs
B
X
L
L
L
L
H
H
H
H
Data Inputs
Output
Control
G
H
L
L
L
L
L
L
L
L
Output
A
X
L
L
H
H
L
L
H
H
C0
X
L
H
X
X
X
X
X
X
C1
X
X
X
L
H
X
X
X
X
C2
X
X
X
X
X
L
H
X
X
C3
X
X
X
X
X
X
X
L
H
Y
Z
L
H
L
H
L
H
L
H
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DM74LS253MX | 4-Input Digital Multiplexer |
| DM74LS257BM | 3-STATE Quad 2-Data Selectors/Multiplexers |
| DM74LS257B | 3-STATE Quad 2-Data Selectors/Multiplexers(三態(tài)輸出的四2數(shù)據(jù)選擇器) |
| DM74LS257BN | 3-STATE Quad 2-Data Selectors/Multiplexers |
| DM74LS257 | 3-STATE Quad 2-Data Selectors/Multiplexers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DM74LS257B WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| DM74LS257BM | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3-STATE Data Sel/Mul 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(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| DM74LS257BMX | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3-STATE Data Sel/Mul 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(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| DM74LS257BN | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3-STATE Data Sel/Mul 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(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| DM74LS257N | 制造商:Texas Instruments 功能描述: 制造商:National Semiconductor Corporation 功能描述:LOGIC MUX, QUAD, 2-INPUT, LS-TTL, 16 Pin, Plastic, DIP |
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