SN54HCT574

更新时间： 2024-11-19 23:03:03

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	118K
描述
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS

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SN54HCT574 数据手册

SN54HCT574, SN74HCT574

OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS

WITH 3-STATE OUTPUTS

SCLS177C – MARCH 1984 – REVISED MAY 1997

SN54HCT574 . . . J OR W PACKAGE

SN74HCT574 . . . DW, N, OR PW PACKAGE

(TOP VIEW)

Inputs Are TTL-Voltage Compatible

High-Current 3-State Noninverting Outputs

Drive Bus Lines Directly or up to 15 LSTTL

Loads

Bus-Structured Pinout

Package Options Include Plastic

Small-Outline (DW), Thin Shrink

Small-Outline (PW), and Ceramic Flat (W)

Packages, Ceramic Chip Carriers (FK), and

Standard Plastic (N) and Ceramic (J)

300-mil DIPs

17 3Q

16 4Q

15 5Q

14 6Q

12 8Q

description

GND 10

11 CLK

These octal edge-triggered D-type flip-flops

feature 3-state outputs designed specifically for

bus driving. They are particularly suitable for

implementing buffer registers, I/O ports,

bidirectional bus drivers, and working registers.

SN54HCT574 . . . FK PACKAGE

(TOP VIEW)

20 19

The eight flip-flops enter data on the low-to-high

transition of the clock (CLK) input.

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

increased drive provide the capability to drive bus

lines without interface or pullup components.

15 5Q

9 10 11 12 13

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

while the outputs are in the high-impedance state.

The SN54HCT574 is characterized for operation over the full military temperature range of –55°C to 125°C. The

SN74HCT574 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.

UNLESS OTHERWISE NOTED this document contains PRODUCTION

DATA information 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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与SN54HCT574相关器件

型号	品牌	获取价格	描述	数据表
SN54HCT574_03	TI	获取价格	OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN54HCT574_16	TI	获取价格	OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN54HCT574FH	TI	获取价格	暂无描述
SN54HCT574FK	TI	获取价格	OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN54HCT574FK-00	TI	获取价格	HCT SERIES, 8-BIT DRIVER, TRUE OUTPUT, CQCC20
SN54HCT574FKR	TI	获取价格	HCT SERIES, 8-BIT DRIVER, TRUE OUTPUT, CQCC20, CERAMIC, LCC-20
SN54HCT574J	TI	获取价格	OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN54HCT574J-00	TI	获取价格	HCT SERIES, 8-BIT DRIVER, TRUE OUTPUT, CDIP20
SN54HCT574W	TI	获取价格	OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN54HCT574WR	TI	获取价格	HCT SERIES, 8-BIT DRIVER, TRUE OUTPUT, CDFP20, CERAMIC, DFP-20

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