SN74AC574

更新时间： 2024-11-09 23:03:07

品牌	Logo	应用领域
德州仪器 - TI		触发器输出元件
页数	文件大小	规格书
6页	101K
描述
OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS

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替代型号

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SN74AC574 数据手册

SN54AC574, SN74AC574

OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS

WITH 3-STATE OUTPUTS

SCAS541B – OCTOBER 1995 – REVISED JUNE 1996

SN54AC574 . . . J OR W PACKAGE

SN74AC574 . . . DB, DW, N, OR PW PACKAGE

(TOP VIEW)

3-State Outputs Drive Bus Lines Directly

EPIC (Enhanced-Performance Implanted

CMOS) 1-µm Process

Package Options Include Plastic

Small-Outline (DW) Shrink Small-Outline

(DB), and Thin Shrink Small-Outline (PW)

Packages, Ceramic Chip Carriers (FK) and

Flatpacks (W), and Standard Plastic (N) and

Ceramic (J) DIP Packages

CLK

description

These 8-bit flip-flops feature 3-state outputs

designed specifically for driving highly capacitive

or relatively low-impedance loads. The devices

are particularly suitable for implementing buffer

registers, I/O ports, bidirectional bus drivers, and

working registers.

GND

SN54AC574 . . . FK PACKAGE

(TOP VIEW)

The eight flip-flops of the ′AC574 are D-type

edge-triggered flip-flops. On the positive transi-

tion of the clock (CLK) input, the Q outputs are set

to the logic levels set up at the data (D) inputs.

20 19

A buffered output-enable (OE) input can be used

to place the eight outputs in either a normal logic

state (high or low logic levels) or the high-

impedance state. In the high-impedance state,

the outputs neither load nor drive the bus lines

significantly. The high-impedance state and the

increased drive provide the capability to drive bus

lines in a bus-organized system without need for

interface or pullup components.

9 10 11 12 13

OE does not affect internal operations of the flip-flop. Old data can be retained or new data can be entered while

the outputs are in the high-impedance state.

The SN54AC574 is characterized for operation over the full military temperature range of –55°C to 125°C. The

SN74AC574 is characterized for operation from –40°C to 85°C.

FUNCTION TABLE

(each flip-flop)

INPUTS

OUTPUT

CLK

↑

H or L

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

EPIC is a trademark of Texas Instruments Incorporated.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6

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SN74AC574 替代型号

型号	品牌	替代类型	描述	数据表
SN54AC574	TI	功能相似	OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS

与SN74AC574相关器件

型号	品牌	获取价格	描述	数据表
SN74AC574DB	TI	获取价格	OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74AC574DBLE	TI	获取价格	OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74AC574DBR	TI	获取价格	OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74AC574DBRE4	TI	获取价格	OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74AC574DBRG4	TI	获取价格	AC SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDSO20, GREEN, PLASTIC, SSOP-20
SN74AC574DW	TI	获取价格	OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74AC574DWE4	TI	获取价格	OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74AC574DWE4	ROCHESTER	获取价格	Bus Driver, AC Series, 1-Func, 8-Bit, True Output, CMOS, PDSO20, GREEN, PLASTIC, SOIC-20
SN74AC574DWR	TI	获取价格	OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74AC574DWRE4	TI	获取价格	OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS

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