7.9

3

IDT54/74FCT245/A/C, IDT54/74FCT640/A/C, IDT54/74FCT645/A/C

FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVERS

MILITARY AND COMMERCIAL TEMPERATURE RANGES

DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE

Symbol

Parameter

Test Conditions

(1)

Min.

Typ.

(2)

Max.

Unit

Input HIGH Level

Guaranteed Logic HIGH Level

2.0

—

—

V

Input LOW Level

Guaranteed Logic LOW Level

—

—

0.8

V

Input HIGH Current

——

5

µA

(Except I/O pins)

—

—

5

(4)

Input LOW Current

—

—

–5

(4)

(Except I/O pins)

—

—

–5

Input HIGH Current

——

15

µA

(I/O pins only)

—

—

15

(4)

Input LOW Current

—

—

–15

(4)

(I/O pins only)

—

—

–15

Clamp Diode Voltage

—

–0.7

–1.2

V

Short Circuit Current

–60

–120

—

mA

Output HIGH Voltage

—V

—

2.4

4.3

—

2.4

4.3

—

Output LOW Voltage

µA

—

GND

V

(Port A and Port B)

µA

—

GND

(4)

—

0.3

0.55

—

0.3

0.55

NOTES:

2534 tbl 03

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

°C ambient and maximum loading.

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

4. This parameter is guaranteed but not tested.