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IDT74LVCH244APY

3.3V CMOS OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS AND BUS-HOLD

Integrated Device Technology 

IDT74LVCH244A

3.3V CMOS OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS

PIN CONFIGURATION

1OE

1

1A1

2

2Y4

3

1A2

4

2Y3

5

1A3

6

2Y2

7

1A4

8

2Y1

9

GND 10

20

VCC

19

2OE

18

1Y1

17

2A4

16

1Y2

15

2A3

14

1Y3

13

2A2

12

1Y4

11

2A1

SOIC/ SSOP/ QSOP/ TSSOP

TOP VIEW

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

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.

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

5.5

8

pF

CI/O

I/O Port Capacitance VIN = 0V

6.5

8

pF

NOTE:

1. As applicable to the device type.

PIN DESCRIPTION

Pin Names

xAx

xYx

xOE

Description

Data Inputs(1)

3-State Outputs

Output Enable Inputs(1) (Active LOW)

NOTE:

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

FUNCTION TABLE (EACH BUFFER)(1)

Inputs

Outputs

xOE

xAx

xYx

L

H

H

L

L

L

H

X

Z

NOTES:

1. H = HIGH Voltage Level

X = Don’t Care

L = LOW Voltage Level

Z = High-Impedance

2

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