SN74LVT244A

更新时间： 2024-11-17 23:06:23

品牌	Logo	应用领域
德州仪器 - TI		驱动器输出元件
页数	文件大小	规格书
7页	111K
描述
3.3-V ABT OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS

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SN74LVT244A 数据手册

SN54LVT244A, SN74LVT244A

3.3-V ABT OCTAL BUFFERS/DRIVERS

WITH 3-STATE OUTPUTS

SCAS354 – FEBRUARY 1994

SN54LVT244A . . . J PACKAGE

SN74LVT244A . . . DB, DW, OR PW PACKAGE

(TOP VIEW)

• State-of-the-Art Advanced BiCMOS

Technology (ABT) Design for 3.3-V

Operation and Low-Static Power

Dissipation

1OE

1A1

2Y4

1A2

2Y3

1A3

2Y2

1A4

2Y1

GND

• Supports Mixed-Mode Signal Operation

2OE

1Y1

2A4

1Y2

2A3

1Y3

(5-V Input and Output Voltages With

3.3-V V

)

• Supports Unregulated Battery Operation

Down to 2.7 V

• Typical V

(Output Ground Bounce)

OLP

< 0.8 V at V

= 3.3 V, T = 25°C

13 2A2

12 1Y4

• Latch-Up Performance Exceeds 500 mA

2A1

Per JEDEC Standard JESD-17

• Bus-Hold Data Inputs Eliminate the Need

SN54LVT244A . . . FK PACKAGE

(TOP VIEW)

for External Pullup Resistors

• Supports Live Insertion

• Package Options Include Plastic

Small-Outline (DW), Shrink Small-Outline

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

Packages, Ceramic Chip Carriers (FK), and

Ceramic DIPs (J)

20 19

1Y1

2A4

1Y2

2A3

1Y3

1A2

2Y3

1A3

2Y2

1A4

description

These octal buffers and line drivers are designed

9 10 11 12 13

specifically for low-voltage (3.3-V) V operation,

but with the capability to provide a TTL interface to

a 5-V system environment.

The ′LVT244A is organized as two 4-bit line drivers with separate output-enable (OE) inputs. When OE is low,

the device passes data from the A inputs to the Y outputs. When OE is high, the outputs are in the

high-impedance state.

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

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 SN74LVT244A is available in TI’s shrink small-outline package (DB), which provides the same I/O pin count

and functionality of standard small-outline packages in less than half the printed-circuit-board area.

The SN54LVT244A is characterized for operation over the full military temperature range of –55°C to 125°C.

The SN74LVT244A is characterized for operation from –40°C to 85°C.

FUNCTION TABLE

(each buffer)

INPUTS

OUTPUT

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.

LVT244–5

2–1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6 7

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与SN74LVT244A相关器件

型号	品牌	获取价格	描述	数据表
SN74LVT244ADB	TI	获取价格	LVT SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20
SN74LVT244ADBR	TI	获取价格	LVT SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20, PLASTIC, SSOP-20
SN74LVT244ADWR	ROCHESTER	获取价格	LVT SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20, PLASTIC, SO-20
SN74LVT244APW	TI	获取价格	3.3-V ABT OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
SN74LVT244APWLE	TI	获取价格	3.3-V ABT Octal Buffers/Drivers With 3-State Outputs 20-TSSOP -40 to 85
SN74LVT244APWR	TI	获取价格	LVT SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20, PLASTIC, TSSOP-20
SN74LVT244B	TI	获取价格	3.3-V ABT OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
SN74LVT244B_07	TI	获取价格	3.3-V ABT OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS
SN74LVT244B_10	TI	获取价格	3.3-V ABT OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS
SN74LVT244B_101	TI	获取价格	3.3-V ABT OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS

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