Datasheet > WAH4245

WAH4245

更新时间： 2024-10-14 03:17:23

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
11页	172K
描述
16-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

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WAH4245 数据手册

SN74AVCAH164245

16-BIT DUAL-SUPPLY BUS TRANSCEIVER

WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

SCES396 – JULY 2002

Member of the Texas Instruments

Widebus Family

Supports Partial-Power-Down Mode

off

Operation

DOC Circuitry Dynamically Changes

Output Impedance, Resulting in Noise

Reduction Without Speed Degradation

Fully Configurable Dual-Rail Design Allows

Each Port to Operate Over the Full 1.4-V to

3.6-V Power-Supply Range

Dynamic Drive Capability Is Equivalent to

Bus Hold on Data Inputs Eliminates the

Need for External Pullup/Pulldown

Resistors

Standard Outputs With I

±24 mA at 2.5-V V

and I

Control Inputs V /V Levels are

Latch-Up Performance Exceeds 100 mA Per

JESD 78, Class II

IH IL

Referenced to V

Voltage

CCA

If Either V

Are in the High-Impedance State

Input Is at GND, Both Ports

ESD Protection Exceeds JESD 22

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

Overvoltage-Tolerant Inputs/Outputs Allow

Mixed-Voltage-Mode Data Communications

– 1000-V Charged-Device Model (C101)

description/ordering information

This 16-bit (dual-octal) noninverting bus transceiver uses two separate configurable power-supply rails. The

A-port is designed to track V . V accepts any supply voltage from 1.4 V to 3.6 V. The B-port is designed

CCA CCA

to track V

. V

accepts any supply voltage from 1.4 V to 3.6 V. This allows for universal low-voltage

CCB CCB

bidirectional translation between any of the 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes.

The SN74AVCAH164245 is designed for asynchronous communication between data buses. The device

transmits 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 outputs so the buses are

effectively isolated.

The SN74AVCAH164245 is designed so that the control pins (1DIR, 2DIR, 1OE, and 2OE) are supplied by

CCA

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

or pulldown resistors with the bus-hold circuitry is not recommended.

Toensurethehigh-impedancestateduringpoweruporpowerdown,OEshouldbetiedtoV

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

throughapullup

CCA

This device is fully specified for partial-power-down applications using I . The I circuitry disables the outputs,

off

preventingdamagingcurrentbackflowthroughthedevicewhenitispowereddown.IfeitherV inputisatGND,

then both ports are in the high-impedance state.

ORDERING INFORMATION

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

†

PACKAGE

TSSOP – DGG Tape and reel SN74AVCAH164245GR

AVCAH164245

WAH4245

–40°C to 85°C

TVSOP – DGV

VFBGA – GQL

Tape and reel SN74AVCAH164245VR

Tape and reel SN74AVCAH164245KR

WAH4245

†

Packagedrawings,standardpackingquantities,thermaldata,symbolization,andPCBdesignguidelines

are available at www.ti.com/sc/package.

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.

DOC and Widebus are trademarks of Texas Instruments.

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...11

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