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參數資料
| 型號： | DM74LS253 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | 3-STATE Data Selector/Multiplexer(三態輸出的數據選擇器/多路器) |
| 中文描述： | 3態數據選擇器/多路（三態輸出的數據選擇器/多路器） |
| 文件頁數： | 1/6頁 |
| 文件大小： | 56K |
| 代理商： | DM74LS253 |
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PDF資料 |
PDF描述 |
|---|---|
| DM74LS253M | Octal D-Type Latch with 3-STATE Outputs; Package: SSOP; No of Pins: 20; Container: Rail |
| DM74LS253N | Octal D-Type Latch with 3-STATE Outputs |
| DM74LS253MX | 4-Input Digital Multiplexer |
| DM74LS257BM | 3-STATE Quad 2-Data Selectors/Multiplexers |
| DM74LS257B | 3-STATE Quad 2-Data Selectors/Multiplexers(三態輸出的四2數據選擇器) |
相關代理商/技術參數 |
參數描述 |
|---|---|
| DM74LS253 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| DM74LS253M | 功能描述:編碼器、解碼器、復用器和解復用器 Dl 3-STATE Dt Sl/Mul 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 |
| DM74LS253MX | 功能描述:編碼器、解碼器、復用器和解復用器 Dl 3-STATE Dt Sl/Mul 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 |
| DM74LS253N | 功能描述:編碼器、解碼器、復用器和解復用器 Dl 3-STATE Dt Sl/Mul 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 |
| DM74LS257B WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
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