SN74LVT244B

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	112K
描述
3.3-V ABT OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS

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SN74LVT244B 数据手册

SN54LVT244B, SN74LVT244B

3.3-V ABT OCTAL BUFFERS/DRIVERS

WITH 3-STATE OUTPUTS

SCAS354F – FEBRUARY 1994 – REVISED APRIL 2000

SN54LVT244B . . . J OR W PACKAGE

SN74LVT244B . . . 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

High-Impedance State During Power Up

and Power Down

2OE

1Y1

2A4

1Y2

2A3

1Y3

Support Mixed-Mode Signal Operation (5-V

Input and Output Voltages With 3.3-V V

)

Support Unregulated Battery Operation

Down to 2.7 V

13 2A2

12 1Y4

Typical V

<0.8 V at V

(Output Ground Bounce)

OLP

= 3.3 V, T = 25°C

2A1

and Power-Up 3-State Support Hot

off

Insertion

SN54LVT244B . . . FK PACKAGE

(TOP VIEW)

Latch-Up Performance Exceeds 100 mA Per

JESD 78, Class II

ESD Protection Exceeds JESD 22

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

1 20 19

1Y1

2A4

1Y2

2A3

1Y3

1A2

2Y3

1A3

2Y2

1A4

– 1000-V Charged-Device Model (C101)

Package Options Include Plastic

Small-Outline (DW), Shrink Small-Outline

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

Packages, Ceramic Chip Carriers (FK),

Ceramic Flat (W) Packages, and Ceramic

(J) DIPs

9 10 11 12 13

description

These octal buffers and line drivers are designed 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 ’LVT244B 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.

When V

is between 0 and 1.5 V, the device is in the high-impedance state during power up or power down.

However, to ensure the high-impedance state above 1.5 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;

These devices are 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 devices when they are 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.

The SN54LVT244B is characterized for operation over the full military temperature range of –55°C to 125°C.

The SN74LVT244B 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.

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.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6 7

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与SN74LVT244B相关器件

型号	品牌	获取价格	描述	数据表
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
SN74LVT244BDB	TI	获取价格	3.3-V ABT OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
SN74LVT244BDBLE	TI	获取价格	3.3-V ABT OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS
SN74LVT244BDBR	TI	获取价格	3.3-V ABT OCTAL BUUFER/DRIVER WITH 3-STATE OUTPUTS
SN74LVT244BDBRE4	TI	获取价格	3.3-V ABT OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS
SN74LVT244BDBRG4	TI	获取价格	3.3-V ABT OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS
SN74LVT244BDW	TI	获取价格	3.3-V ABT OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
SN74LVT244BDWE4	TI	获取价格	3.3-V ABT OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS

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