Datasheet > DM74LS259CW

DM74LS259CW

更新时间： 2024-11-01 18:04:51

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		逻辑集成电路触发器
页数	文件大小	规格书
6页	58K
描述
D Latch, LS Series, 1-Func, Positive Edge Triggered, 8-Bit, True Output, TTL, WAFER

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DM74LS259CW 技术参数

生命周期：	Obsolete	零件包装代码：	WAFER
包装说明：	DIE,	Reach Compliance Code：	unknown
HTS代码：	8542.39.00.01	风险等级：	5.72
其他特性：	1:8 DMUX FOLLOWED BY LATCH	系列：	LS
JESD-30 代码：	X-XUUC-N16	逻辑集成电路类型：	D LATCH
位数：	8	功能数量：	1
端子数量：	16	最高工作温度：	70 °C
最低工作温度：		输出极性：	TRUE
封装主体材料：	UNSPECIFIED	封装代码：	DIE
封装形状：	UNSPECIFIED	封装形式：	UNCASED CHIP
传播延迟（tpd）：	32 ns	认证状态：	Not Qualified
最大供电电压 (Vsup)：	5.25 V	最小供电电压 (Vsup)：	4.75 V
标称供电电压 (Vsup)：	5 V	表面贴装：	YES
技术：	TTL	温度等级：	COMMERCIAL
端子形式：	NO LEAD	端子位置：	UPPER
触发器类型：	POSITIVE EDGE	Base Number Matches：	1

DM74LS259CW 数据手册

August 1986

Revised March 2000

DM74LS259

8-Bit Addressable Latches

General Description

Features

These 8-bit addressable latches are designed for general

purpose storage applications in digital systems. Specific

uses include working registers, serial-holding registers,

and active-high decoders or demultiplexers. They are mul-

tifunctional devices capable of storing single-line data in

eight addressable latches, and being a 1-of-8 decoder or

demultiplexer with active-high outputs.

■ 8-Bit parallel-out storage register performs serial-to-par-

allel conversion with storage

■ Asynchronous parallel clear

■ Active high decoder

■ Enable/disable input simplifies expansion

■ Direct replacement for Fairchild DM9334

■ Expandable for N-bit applications

■ Four distinct functional modes

■ Typical propagation delay times:

Enable-to-output 18 ns

Four distinct modes of operation are selectable by control-

ling the clear and enable inputs as enumerated in the func-

tion table. In the addressable-latch mode, data at the data-

in terminal is written into the addressed latch. The

addressed latch will follow the data input with all unad-

dressed latches remaining in their previous states. In the

memory mode, all latches remain in their previous states

and are unaffected by the data or address inputs. To elimi-

nate the possibility of entering erroneous data in the

latches, the enable should be held HIGH (inactive) while

the address lines are changing. In the 1-of-8 decoding or

demultiplexing mode, the addressed output will follow the

level of the D input with all other outputs LOW. In the clear

mode, all outputs are LOW and unaffected by the address

and data inputs.

Data-to-output

16 ns

Address-to-output 21 ns

Clear-to-output

■ Fan-out

17 ns

8 mA

I_OL(sink current)

I_OH(source current) −0.4 mA

■ Typical I_CC22 mA

Ordering Code:

Order Number Package Number

Package Description

DM74LS259M

DM74LS259WM

DM74LS259N

M16A

M16B

N16E

16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow

16-Lead Small Outline Intergrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide

16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

DS006418

www.fairchildsemi.com

12 3 4 5 6

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与DM74LS259CW相关器件

型号	品牌	获取价格	描述	数据表
DM74LS259M	FAIRCHILD	获取价格	8-Bit Addressable Latches
DM74LS259M	NSC	获取价格	8-Bit Addressable Latches
DM74LS259MX	FAIRCHILD	获取价格	Addressable D-Type Latch
DM74LS259N	FAIRCHILD	获取价格	8-Bit Addressable Latches
DM74LS259N	NSC	获取价格	8-Bit Addressable Latches
DM74LS259N/A+	ETC	获取价格	Addressable D-Type Latch
DM74LS259N/B+	ETC	获取价格	Addressable D-Type Latch
DM74LS259WM	FAIRCHILD	获取价格	8-Bit Addressable Latches
DM74LS259WM	NSC	获取价格	8-Bit Addressable Latches
DM74LS259WMX	FAIRCHILD	获取价格	Addressable D-Type Latch

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