2

IDT74FST3125

4-BIT BUS SWITCH

COMMERCIAL TEMPERATURE RANGE

FUNCTION TABLE

OE

OE

Y

Description

H

Hi-Z

Disconnect

L

A

Connect

3471 tbl 03

DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE

Following Conditions Apply Unless Otherwise Specified:

ABSOLUTE MAXIMUM RATINGS

(1)

Symbol

Description

Max.

Unit

to GND

–0.5 to +7.0

V

Storage Temperature

–65 to +150

°C

Maximum Continuous Channel

Current

128

mA

NOTES:

1. Stresses greater than those listed under ABSOLUTE MAXIMUM RAT-

INGS 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 condiitions for extended

periods may affect reliability.

3471 tbl 02

Symbol

Parameter

Control Input Capacitance

4

pF

Switch Input/Output

Capacitance

Switch Off

pF

3471 tbl 04

CAPACITANCE

(1)

NOTES:

1. Capacitance is characterized but not tested

Symbol

Parameter

Min.

Max.

Unit

Input HIGH Voltage

Guaranteed Logic HIGH for Control Inputs

2.0

—

—

V

Input LOW Voltage

Guaranteed Logic LOW for Control Inputs

—

—

0.8

V

Input HIGH Current

——

±1

µA

Input LOW Voltage

—

—

±1

High Impedance Output Current

——

±1

µA

(3-State Output pins)

—

—

±1

Short Circuit Current

—

300

—

mA

Clamp Diode Voltage

—

–0.7

–1.2

V

—

5

7

Ω

—

10

15

Ω

Input/Output Power Off Leakage

≤ 4.5V

—

—

±1

µA

Quiescent Power Supply Current

—

0.1

3

µA

NOTES:

1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.

2. Typical values are at VCC = 5.0V, +25

°C ambient.

3. Not more than one output should be tested at one time. Duration of the test should not exceed one second.

4. Measured by voltage drop between ports at indicated current through the switch.

3471 tbl 05