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參數資料
| 型號： | SN74LS155D |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | DUAL 1-OF-4 DECODER/ DEMULTIPLEXER |
| 中文描述： | LS SERIES, OTHER DECODER/DRIVER, TRUE OUTPUT, PDSO16 |
| 封裝： | SOIC-16 |
| 文件頁數： | 1/4頁 |
| 文件大?。?/td> | 78K |
| 代理商： | SN74LS155D |
5-1
FAST AND LS TTL DATA
DUAL 1-OF-4 DECODER/
DEMULTIPLEXER
The SN54/74LS155 and SN54/74LS156 are high speed Dual 1-of-4
Decoder/Demultiplexers. These devices have two decoders with common
2-bit Address inputs and separate gated Enable inputs. Decoder “a” has an
Enable gate with one active HIGH and one active LOW input. Decoder “b” has
two active LOW Enable inputs. If the Enable functions are satisfied, one
output of each decoder will be LOW as selected by the address inputs. The
LS156 has open collector outputs for wired-OR (DOT-AND) decoding and
function generator applications.
The LS155 and LS156 are fabricated with the Schottky barrier diode
process for high speed and are completely compatible with all Motorola TTL
families.
Schottky Process for High Speed
Multifunction Capability
Common Address Inputs
True or Complement Data Demultiplexing
Input Clamp Diodes Limit High Speed Termination Effects
ESD > 3500 Volts
CONNECTION DIAGRAM DIP
(TOP VIEW)
Eb
NOTE:
The Flatpak version
has the same pinouts
(Connection Diagram) as
the Dual In-Line Package.
14
13
12
11
10
9
1
Ea
2
Ea
3
A1
4
5
6
7
16
15
8
VCC
Eb
A0
O3b
O1b
O2b
O0b
O3a
O2a
O1a
O0a
GND
PIN NAMES
LOADING
(Note a)
HIGH
LOW
A0, A1
Ea, Eb
Ea
O0–O3
Address Inputs
Enable (Active LOW) Inputs
Enable (Active HIGH) Input
Active LOW Outputs (Note b)
0.5 U.L.
0.5 U.L.
0.5 U.L.
10 U.L.
0.25 U.L.
0.25 U.L.
0.25 U.L.
5 (2.5) U.L.
NOTES:
a) 1 TTL Unit Load (U.L.) = 40
μ
A HIGH/1.6 mA LOW.
b) The Output LOW drive factor is 2.5 U.L. for Military (54) and 5 U.L. for Commercial (74)
Temperature Ranges. The HIGH level drive for the LS156 must be established by an external
resistor.
SN54/74LS155
SN54/74LS156
DUAL 1-OF-4 DECODER/
DEMULTIPLEXER
LS156-OPEN-COLLECTOR
LOW POWER SCHOTTKY
J SUFFIX
CERAMIC
CASE 620-09
N SUFFIX
PLASTIC
CASE 648-08
16
1
16
1
ORDERING INFORMATION
SN54LSXXXJ
SN74LSXXXN
SN74LSXXXD
Ceramic
Plastic
SOIC
16
1
D SUFFIX
SOIC
CASE 751B-03
LOGIC SYMBOL
VCC = PIN 16
GND = PIN 8
1 2
13 3
1415
E
E
A0
A1
A0
A1
0
1
2
3
0
1
2
3
DECODER a
DECODER b
7
6
5
4
9
10 11
12
相關PDF資料 |
PDF描述 |
|---|---|
| SN74LS155N | DUAL 1-OF-4 DECODER/ DEMULTIPLEXER |
| SN74LS164D | LaserStream Optical Mouse Designer's Kit |
| SN74LS164N | High-performance Optical Mouse Sensor |
| SN74LS164 | LaserStream Optical Mouse Designer's Kit |
| SN74LS165 | Optical Mouse Sensor |
相關代理商/技術參數 |
參數描述 |
|---|---|
| SN74LS155MEL | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74LS155ML1 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74LS155N | 制造商:ON Semiconductor 功能描述:Decoder/Demultiplexer Single/Dual 3/2-to-8/4 16-Pin PDIP 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74LS156D | 功能描述:編碼器、解碼器、復用器和解復用器 Dual 2 to 4-Line Decoder/DeMltplxr 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 |
| SN74LS156DE4 | 功能描述:編碼器、解碼器、復用器和解復用器 Dual 2 to 4-Line Decoder/DeMltplxr 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 |
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