SN74ABTH245

更新时间： 2024-09-27 23:06:15

品牌	Logo	应用领域
德州仪器 - TI		总线收发器输出元件
页数	文件大小	规格书
7页	98K
描述
OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

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SN74ABTH245 数据手册

SN54ABTH245, SN74ABTH245

OCTAL BUS TRANSCEIVERS

WITH 3-STATE OUTPUTS

SCBS663D – APRIL 1996 – REVISED SEPTEMBER 1999

SN54ABTH245 . . . J OR W PACKAGE

SN74ABTH245 . . . DB, DGV, DW, N, OR PW PACKAGE

(TOP VIEW)

State-of-the-Art EPIC-ΙΙB BiCMOS Design

Significantly Reduces Power Dissipation

Latch-Up Performance Exceeds 500 mA Per

JESD 17

DIR

Typical V

(Output Ground Bounce) < 1 V

OLP

at V

= 5 V, T = 25°C

and Power-Up 3-State Support Hot

off

Insertion

High-Drive Outputs (–32-mA I , 64-mA I

)

Bus Hold on Data Inputs Eliminates the

Need for External Pullup/Pulldown

Resistors

GND

Package Options Include Plastic

Small-Outline (DW), Shrink Small-Outline

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

Thin Very Small-Outline (DGV) Packages,

Ceramic Chip Carriers (FK), Plastic (N) and

Ceramic (J) DIPs, and Ceramic Flat (W)

Package

SN54ABTH245 . . . FK PACKAGE

(TOP VIEW)

2 1 20 19

description

These octal bus transceivers are designed for

asynchronous communication between data

buses. The devices transmit data from the A bus

to the B bus or from the B bus to the A bus,

depending on the logic level at the

direction-control (DIR) input. The output-enable

(OE) input can be used to disable the device so

the buses are effectively isolated.

9 10 11 12 13

When V

is between 0 and 2.1 V, the device is in the high-impedance state during power up or power down.

However, to ensure the high-impedance state above 2.1 V, OE should be tied to V

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

through a pullup resistor;

This device is fully specified for hot-insertion applications using I and power-up 3-state. The I circuitry

off

disables the outputs, preventing damaging current backflow through the device when it is powered down. The

power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down,

which prevents driver conflict.

Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.

The SN54ABTH245 is characterized for operation over the full military temperature range of –55°C to 125°C.

The SN74ABTH245 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-ΙΙB 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 7

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与SN74ABTH245相关器件

型号	品牌	获取价格	描述	数据表
SN74ABTH245DB	TI	获取价格	OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SN74ABTH245DBR	TI	获取价格	Octal Bus Transceivers With 3-State Outputs 20-SSOP -40 to 85
SN74ABTH245DBRE4	TI	获取价格	Octal Bus Transceivers With 3-State Outputs 20-SSOP -40 to 85
SN74ABTH245DBRG4	TI	获取价格	ABT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20, GREEN, PLASTIC, SSOP-20
SN74ABTH245DGV	TI	获取价格	OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SN74ABTH245DGVR	TI	获取价格	Octal Bus Transceivers With 3-State Outputs 20-TVSOP -40 to 85
SN74ABTH245DGVRE4	TI	获取价格	Octal Bus Transceivers With 3-State Outputs 20-TVSOP -40 to 85
SN74ABTH245DW	TI	获取价格	OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SN74ABTH245DWE4	TI	获取价格	具有三态输出的八路总线收发器 \| DW \| 20 \| -40 to 85
SN74ABTH245DWG4	TI	获取价格	Octal Bus Transceivers With 3-State Outputs 20-SOIC -40 to 85

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