74LS373

更新时间： 2024-11-08 22:53:19

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		触发器锁存器
页数	文件大小	规格书
8页	91K
描述
3-STATE Octal D-Type Transparent Latches and Edge-Triggered Flip-Flops

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中文翻译

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数据手册

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74LS373 数据手册

April 1986

Revised March 2000

DM74LS373 • DM74LS374

3-STATE Octal D-Type Transparent Latches

and Edge-Triggered Flip-Flops

General Description

Features

■ Choice of 8 latches or 8 D-type flip-flops in a single

These 8-bit registers feature totem-pole 3-STATE outputs

designed specifically for driving highly-capacitive or rela-

tively low-impedance loads. The high-impedance state and

increased high-logic level drive provide these registers with

the capability of being connected directly to and driving the

bus lines in a bus-organized system without need for inter-

face or pull-up components. They are particularly attractive

for implementing buffer registers, I/O ports, bidirectional

bus drivers, and working registers.

package

■ 3-STATE bus-driving outputs

■ Full parallel-access for loading

■ Buffered control inputs

■ P-N-P inputs reduce D-C loading on data lines

The eight latches of the DM74LS373 are transparent D-

type latches meaning that while the enable (G) is HIGH the

Q outputs will follow the data (D) inputs. When the enable

is taken LOW the output will be latched at the level of the

data that was set up.

The eight flip-flops of the DM74LS374 are edge-triggered

D-type flip flops. On the positive transition of the clock, the

Q outputs will be set to the logic states that were set up at

the D inputs.

A buffered output control input can be used to place the

eight outputs in either a normal logic state (HIGH or LOW

logic levels) or a high-impedance state. In the high-imped-

ance state the outputs neither load nor drive the bus lines

significantly.

The output control does not affect the internal operation of

the latches or flip-flops. That is, the old data can be

retained or new data can be entered even while the outputs

are OFF.

Ordering Code:

Order Number Package Number

Package Description

DM74LS373WM

DM74LS373SJ

DM74LS373N

DM74LS374WM

DM74LS374SJ

IDM29901NC

M20B

M20D

N20A

M20B

M20D

N20A

20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide

20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide

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

20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide

20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide

20-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.

DS006431

www.fairchildsemi.com

12 3 4 5 6 7 8

中文翻译

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与74LS373相关器件

型号	品牌	获取价格	描述	数据表
74LS373DC	ROCHESTER	获取价格	Bus Driver,
74LS373DCQM	FAIRCHILD	获取价格	Bus Driver, 1-Func, 8-Bit, TTL, CDIP20,
74LS373FC	FAIRCHILD	获取价格	Bus Driver, 1-Func, 8-Bit, TTL, CDFP20,
74LS373FCQM	ROCHESTER	获取价格	Bus Driver,
74LS373PC	ETC	获取价格	8-Bit D-Type Latch
74LS373PCQM	FAIRCHILD	获取价格	Bus Driver, 1-Func, 8-Bit, TTL, PDIP20,
74LS373PCQR	FAIRCHILD	获取价格	Bus Driver, 1-Func, 8-Bit, TTL, PDIP20,
74LS373SC	FAIRCHILD	获取价格	Bus Driver, 1-Func, 8-Bit, TTL, PDSO20,
74LS374	HITACHI	获取价格	Octal D-type Edge-triggered Flip-Flips(with three-state outputs)
74LS374	FAIRCHILD	获取价格	3-STATE Octal D-Type Transparent Latches and Edge-Triggered Flip-Flops

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