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參數資料
| 型號： | SN54LS155 |
| 廠商： | Motorola, Inc. |
| 英文描述： | DUAL 1-OF-4 DECODER/ DEMULTIPLEXER |
| 中文描述： | 雙1 - - 4解碼器/解復用器 |
| 文件頁數： | 1/6頁 |
| 文件大小： | 210K |
| 代理商： | SN54LS155 |
5-262
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)
NOTE:
The Flatpak version
has the same pinouts
(Connection Diagram) as
the Dual In-Line Package.
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
相關PDF資料 |
PDF描述 |
|---|---|
| SN54LS155J | DUAL 1-OF-4 DECODER/ DEMULTIPLEXER |
| SN74LS156D | DUAL 1-OF-4 DECODER/ DEMULTIPLEXER |
| SN74LS156N | DUAL 1-OF-4 DECODER/ DEMULTIPLEXER |
| SN74LS157 | LOW POWER SCHOTTKY |
| SN74LS157D | LOW POWER SCHOTTKY |
相關代理商/技術參數 |
參數描述 |
|---|---|
| SN54LS155AJ | 制造商:Texas Instruments 功能描述:Decoder/Demultiplexer Single/Dual 3/2-to-8/4 16-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN54LS156J | 制造商:Texas Instruments 功能描述:Decoder/Demultiplexer Single/Dual 3/2-to-8/4 16-Pin CDIP Tube |
| SN54LS157J | 制造商:Texas Instruments 功能描述:Multiplexer 1-Element Bipolar 8-IN 16-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:MLTPLXR 1-ELEM BIPOLAR 8-IN 16CDIP - Rail/Tube |
| SN54LS158J | 制造商:Texas Instruments 功能描述:Multiplexer 1-Element Bipolar 8-IN 16-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN54LS160A/BEA | 制造商:Rochester Electronics LLC 功能描述: |
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