SN54HC374

更新时间： 2024-11-01 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
7页	109K
描述
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS

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替代型号

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SN54HC374 数据手册

SN54HC374, SN74HC374

OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS

WITH 3-STATE OUTPUTS

SCLS141C – DECEMBER 1982 – REVISED JULY 1998

SN54HC374 . . . J OR W PACKAGE

SN74HC374 . . . DB, DW, N, OR PW PACKAGE

(TOP VIEW)

Eight D-Type Flip-Flops in a Single Package

High-Current 3-State True Outputs Can

Drive up to 15 LSTTL Loads

Full Parallel Access for Loading

Package Options Include Plastic Shrink

Small-Outline (DB), Small-Outline (DW),

Thin Shrink Small-Outline (PW), and

Ceramic Flat (W) Packages, Ceramic Chip

Carriers (FK), and Standard Plastic (N) and

Ceramic (J) DIPs

17 7D

16 7Q

15 6Q

14 6D

13 5D

12 5Q

11 CLK

description

GND 10

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

designed specifically for driving highly capacitive

or relatively low-impedance loads. They are

particularly suitable for implementing buffer

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

working registers.

SN54HC374 . . . FK PACKAGE

(TOP VIEW)

20 19

The eight flip-flops of the ’HC374 devices are

edge-triggered D-type flip-flops. On the positive

transition of the clock (CLK) input, the Q outputs

are set to the logic levels that were set up at the

data (D) inputs.

15 6Q

9 10 11 12 13

An output-enable (OE) input places 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.

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.

To ensure the high-impedance state during power up or power down, OE should be tied to V through a pullup

resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

The SN54HC374 is characterized for operation over the full military temperature range of –55°C to 125°C.

The SN74HC374 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.

On products compliant to MIL-PRF-38535, all parameters are tested

unless otherwise noted. On all other products, production

processing does not necessarily include testing of all parameters.

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 7

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SN54HC374 替代型号

型号	品牌	替代类型	描述	数据表
SN74HC374	TI	功能相似	OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS

与SN54HC374相关器件

型号	品牌	获取价格	描述	数据表
SN54HC374FH	TI	获取价格	IC,FLIP-FLOP,OCTAL,D TYPE,HC-CMOS,LLCC,20PIN,CERAMIC
SN54HC374FH	ROCHESTER	获取价格	Bus Driver,
SN54HC374FK	TI	获取价格	OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN54HC374FK-00	TI	获取价格	HC/UH SERIES, 8-BIT DRIVER, TRUE OUTPUT, CQCC20
SN54HC374FKR	TI	获取价格	HC/UH SERIES, 8-BIT DRIVER, TRUE OUTPUT, CQCC20, CERAMIC, LCC-20
SN54HC374J	TI	获取价格	OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN54HC374J-00	TI	获取价格	HC/UH SERIES, 8-BIT DRIVER, TRUE OUTPUT, CDIP20
SN54HC374-SP	TI	获取价格	具有三态输出的八路边沿触发式 D 型触发器
SN54HC374W	TI	获取价格	OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN54HC377	TI	获取价格	OCTAL, HEX, AND QUAD D-TYPE FLIP-FLOPS WITH CLOCK ENABLE

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