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SN74AHCT574DB

更新时间： 2024-11-26 23:09:43

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	89K
描述
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS

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SN74AHCT574DB 数据手册

SN54AHCT574, SN74AHCT574

OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS

WITH 3-STATE OUTPUTS

SCLS245J – OCTOBER 1995 – REVISED JANUARY 2000

SN54AHCT574 . . . J OR W PACKAGE

SN74AHCT574 . . . DB, DGV, DW, N, OR PW PACKAGE

(TOP VIEW)

EPIC (Enhanced-Performance Implanted

CMOS) Process

Inputs Are TTL-Voltage Compatible

Latch-Up Performance Exceeds 250 mA Per

JESD 17

ESD Protection Exceeds 2000 V Per

MIL-STD-883, Method 3015; Exceeds 200 V

Using Machine Model (C = 200 pF, R = 0)

Package Options Include Plastic

Small-Outline (DW), Shrink Small-Outline

(DB), Thin Very Small-Outline (DGV), Thin

Shrink Small-Outline (PW), and Ceramic

Flat (W) Packages, Ceramic Chip Carriers

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

(J) DIPs

13 7Q

12 8Q

GND

CLK

SN54AHCT574 . . . FK PACKAGE

(TOP VIEW)

description

The ’AHCT574 devices are octal edge-triggered

D-type flip-flops that feature 3-state outputs

designed specifically for driving highly capacitive

or relatively low-impedance loads. These devices

are particularly suitable for implementing buffer

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

working registers.

1 20 19

9 10 11 12 13

On the positive transition of the clock (CLK) input,

the Q outputs are set to the logic levels of the data

(D) inputs.

A buffered output-enable (OE) input places the eight outputs in either a normal logic state (high or low) 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 without interface or

pullup components.

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.

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 SN54AHCT574 is characterized for operation over the full military temperature range of –55°C to 125°C.

The SN74AHCT574 is characterized for operation from –40°C to 85°C.

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.

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

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与SN74AHCT574DB相关器件

型号	品牌	获取价格	描述	数据表
SN74AHCT574DBLE	TI	获取价格	OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74AHCT574DBR	TI	获取价格	OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74AHCT574DBRE4	TI	获取价格	OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74AHCT574DBRG4	TI	获取价格	OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74AHCT574DGV	TI	获取价格	OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74AHCT574DGVR	TI	获取价格	OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74AHCT574DGVRE4	TI	获取价格	OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74AHCT574DGVRG4	TI	获取价格	OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74AHCT574DW	TI	获取价格	OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74AHCT574DWE4	TI	获取价格	OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS

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