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IDT74LVCH32245A

3.3V CMOS 32-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS, 5 VOLT TOLERANT I/O, BUS-HOLD

Integrated Device Technology 

IDT74LVCH32245A

3.3V CMOS 32-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS

INDUSTRIAL TEMPERATURE RANGE

ABSOLUTE MAXIMUM RATINGS(1)

Symbol

Description

Max

Unit

VTERM Terminal Voltage with Respect to GND –0.5 to +6.5

V

TSTG Storage Temperature

–65 to +150 °C

IOUT DC Output Current

–50 to +50

mA

IIK

Continuous Clamp Current,

IOK

VI < 0 or VO < 0

–50

mA

ICC

Continuous Current through each

ISS

VCC or GND

±100

mA

CAPACITANCE (TA = +25°C, F = 1.0MHz)

Symbol

Parameter(1)

Conditions Typ. Max. Unit

CIN

Input Capacitance

VIN = 0V

4.5

6 pF

COUT Output Capacitance VOUT = 0V 6.5

8

pF

CI/O

I/O Port Capacitance VIN = 0V

6.5

8

pF

NOTE:

1. As applicable to the device type.

NOTE:

1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause

permanent damage to the device. This is a stress rating only and functional operation

of the device at these or any other conditions above those indicated in the operational

sections of this specification is not implied. Exposure to absolute maximum rating

conditions for extended periods may affect reliability.

PIN DESCRIPTION

Pin Names

xOE

xDIR

xAx

xBx

Description

Output Enable Input (Active LOW)

Direction Control Input

Side A Inputs or 3-State Outputs(1)

Side B Inputs or 3-State Outputs(1)

NOTE:

1. These pins have "Bus-Hold". All other pins are standard inputs, outputs, or I/Os.

FUNCTION TABLE(1)

Inputs

xOE

xDIR

L

L

L

H

H

X

NOTE:

1. H = HIGH Voltage Level

L = LOW Voltage Level

X = Don’t Care

Z = High Impedance

Outputs

Bus B data to Bus A

Bus A data to Bus B

Z

BUS-HOLD CHARACTERISTICS

Symbol Parameter(1)

IBHH

Bus-Hold Input Sustain Current

VCC = 3V

IBHL

IBHH

Bus-Hold Input Sustain Current

VCC = 2.3V

IBHL

IBHHO

Bus-Hold Input Overdrive Current VCC = 3.6V

IBHLO

NOTES:

1. Pins with Bus-Hold are identified in the pin description.

2. Typical values are at VCC = 3.3V, +25°C ambient.

Test Conditions

VI = 2V

VI = 0.8V

VI = 1.7V

VI = 0.7V

VI = 0 to 3.6V

3

Min. Typ.(2) Max.

Unit

– 75

—

—

μA

75

—

—

—

—

—

μA

—

—

—

—

—

±500

μA

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