Datasheet > RS4T774

RS4T774

更新时间： 2024-04-09 18:59:10

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润石 - RUNIC		转换器电平转换器
页数	文件大小	规格书
20页	678K
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RS4T774 数据手册

RS4T774

4-Bit Dual-Supply Bus Transceiver with Configurable

Voltage-Level Shifting and 3-State Outputs with

Independent Direction Control Inputs

1 FEATURES

3 DESCRIPTIONS

This 4-bit noninverting bus transceiver uses two separate

configurable power-supply rails. The A port is designed to

track V_CCA. V_CCAaccepts any supply voltage from 0.9 V to

3.6 V. The B port is designed to track V_CCB. V_CCBaccepts

any supply voltage from 0.9 to 3.6 V. This allows for

universal low-voltage bi-directional translation between any

of the 0.9V, 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V voltage

nodes.

•

Each Channel Has an Independent DIR

Control Input

Control Inputs V_IH/V_ILLevels are

Referenced to V_CCAVoltage

Power-Supply Range:

V_CCAand V_CCB:0.9V to 3.6V

V_CCIsolation Feature:

If Either V_CCInput is Below 100 mV, all I/Os

Outputs are Disabled and Become High

Impedance

The RS4T774 is designed for asynchronous communi-

cation between two data buses. The logic levels of the

direction-control (DIR) input and the output-enable (OE)

input activate either the B-port outputs or the A-port outputs

or place both output ports into the high-impedance mode.

•

I_OFF: Supports Partial-Power-Down Mode

Operation

Extended Temperature: -40°C to +125°C

̅̅̅̅

The device transmits data from the A bus to the B bus when

the B-port outputs are activated, and from the B bus to the

A bus when the A-port outputs are activated. The input

circuitry on both A and B ports is always active and must

have a logic HIGH or LOW level applied to prevent excess

2 APPLICATIONS

•

Desktop PC

Personal electronics

Industrial

Enterprise

I_CCand I_CCZ

This device is fully specified for partial-power-down

applications using I_OFF. The I_OFFcircuitry disables the

outputs, preventing damaging current backflow through the

device when it is powered down.

Device Information ⁽¹⁾

PART

NUMBER

PACKAGE

BODY SIZE (NOM)

TSSOP-16(16)

QFN2.5x3.5-16L

QFN2.6x1.8-16L

5.00mm×4.40mm

2.50mm×3.50mm

2.60mm×1.80mm

RS4T774

(1) For all available packages, see the orderable addendum at the end

of the data sheet.

REV A.4

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