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參數資料
| 型號： | SN54LS259 |
| 廠商： | Motorola, Inc. |
| 英文描述： | Octal Bidirectional Transceiver with 3-State Inputs/Outputs; Package: TSSOP 20 LEAD; No of Pins: 20; Container: Tape and Reel; Qty per Container: 2500 |
| 中文描述： | 8位可尋址鎖存 |
| 文件頁數： | 1/6頁 |
| 文件大?。?/td> | 217K |
| 代理商： | SN54LS259 |
5-433
FAST AND LS TTL DATA
8-BIT ADDRESSABLE LATCH
The SN54/74LS259 is a high-speed 8-Bit Addressable Latch designed for
general purpose storage applications in digital systems. It is a multifunctional
device capable of storing single line data in eight addressable latches, and
also a 1-of-8 decoder and demultiplexer with active HIGH outputs. The device
also incorporates an active LOW common Clear for resetting all latches, as
well as, an active LOW Enable.
Serial-to-Parallel Conversion
Eight Bits of Storage With Output of Each Bit Available
Random (Addressable) Data Entry
Active High Demultiplexing or Decoding Capability
Easily Expandable
Common Clear
CONNECTION DIAGRAM DIP
(TOP VIEW)
PIN NAMES
LOADING
(Note a)
HIGH
LOW
A0, A1, A2
D
E
C
Q0 to Q7
Address lnputs
Data Input
Enable (Active LOW) Input
Clear (Active LOW) input
Parallel Latch Outputs (Note b)
0.5 U.L.
0.5 U.L.
1.0 U.L.
0.5 U.L.
10 U.L.
0.25 U.L.
0.25 U.L.
0.5 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.
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
VCC
Supply Voltage
54
74
4.5
4.75
5.0
5.0
5.5
5.25
V
TA
Operating Ambient Temperature Range
54
74
–55
0
25
25
125
70
°
C
IOH
IOL
Output Current — High
54, 74
–0.4
mA
Output Current — Low
54
74
4.0
8.0
mA
SN54/74LS259
8-BIT ADDRESSABLE LATCH
LOW POWER SCHOTTKY
ORDERING INFORMATION
SN54LSXXXJ
SN74LSXXXN
SN74LSXXXD
Ceramic
Plastic
SOIC
J SUFFIX
CERAMIC
CASE 620-09
N SUFFIX
PLASTIC
CASE 648-08
16
1
16
1
16
1
D SUFFIX
SOIC
CASE 751B-03
相關PDF資料 |
PDF描述 |
|---|---|
| SN54LS259J | Octal Bidirectional Transceiver with 3-State Inputs/Outputs; Package: SOIC-20 WB; No of Pins: 20; Container: Tape and Reel; Qty per Container: 1000 |
| SN74LS259D | 8-BIT ADDRESSABLE LATCH |
| SN74LS259N | 8-BIT ADDRESSABLE LATCH |
| SN54LS279 | 8-Bit Addressable Latch; Package: SOEIAJ-16; No of Pins: 16; Container: Rail; Qty per Container: 50 |
| SN74LS279D | QUAD SET-RESET LATCH |
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| SN54LS259BW | 制造商:Texas Instruments 功能描述: |
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| SN54LS275J | 制造商:Texas Instruments 功能描述: |
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