SN74BCT574

更新时间： 2024-09-15 22:53:35

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
5页	76K
描述
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS

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SN74BCT574 数据手册

SN54BCT574, SN74BCT574

OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS

WITH 3-STATE OUTPUTS

SCBS074B – SEPTEMBER 1991 – REVISED NOVEMBER 1993

SN54BCT574 . . . J OR W PACKAGE

SN74BCT574 . . . DW OR N PACKAGE

(TOP VIEW)

• State-of-the-Art BiCMOS Design

Significantly Reduces I

CCZ

• ESD Protection Exceeds 2000 V Per

MIL-STD-883C, Method 3015; Exceeds

200 V Using Machine Model (C = 200 pF,

R = 0)

CLK

• Full Parallel Access for Loading

• Package Options Include Plastic

Small-Outline (DW) Packages, Ceramic

Chip Carriers (FK) and Flatpacks (W), and

Plastic and Ceramic 300-mil DIPs (J, N)

description

GND

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.

SN54BCT574 . . . FK PACKAGE

(TOP VIEW)

20 19

The eight flip-flops of the ′BCT574 are

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

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

will be set to the logic levels that were set up at the

data (D) inputs.

9 10 11 12 13

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 a 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 need for interface or pullup components.

The output enable (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 SN54BCT574 is characterized for operation over the full military temperature range of –55°C to 125°C. The

SN74BCT574 is characterized for operation from 0°C to 70°C.

FUNCTION TABLE

(each flip-flop)

INPUTS

OUTPUT

CLK

↑

H or L

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.

2–1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5

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SN74BCT574 替代型号

型号	品牌	替代类型	描述	数据表
SN54BCT574	TI	功能相似	OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS

与SN74BCT574相关器件

型号	品牌	获取价格	描述	数据表
SN74BCT574DBR	TI	获取价格	OCTAL TRANSPARENT D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74BCT574DBRE4	TI	获取价格	OCTAL TRANSPARENT D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74BCT574DBRG4	TI	获取价格	OCTAL TRANSPARENT D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74BCT574DW	TI	获取价格	OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74BCT574DWE4	TI	获取价格	OCTAL TRANSPARENT D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74BCT574DWG4	TI	获取价格	OCTAL TRANSPARENT D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74BCT574DWR	TI	获取价格	OCTAL TRANSPARENT D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74BCT574DWRE4	TI	获取价格	OCTAL TRANSPARENT D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74BCT574DWRG4	TI	获取价格	OCTAL TRANSPARENT D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74BCT574N	TI	获取价格	OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS

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