IDT54/74FCT621T/AT

FAST CMOS OCTAL BUS TRANSCEIVER (OPEN DRAIN)

MILITARY AND COMMERCIAL TEMPERATURE RANGES

6.18

3

DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE

Following conditions Apply Unless Otherwise Specified:

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)

—

—

±1

µA

Input LOW Current

(5)

—

—

±1

µA

Input HIGH Current

(5)

—

—

±1

µA

Clamp Diode Voltage

—

–0.7

–1.2

V

Output HIGH Current

—

—

20

µA

Output LOW Voltage

(4)

—

0.3

0.55

V

(B Bus)

Output LOW Voltage

(4)

—

0.3

0.5

V

(A Bus)

Input/Output Power Off

≤ 4.5V

—

—

±1

µA

Leakage

(5)

Input Hysteresis

—

—

200

—

mV

Quiescent Power Supply

—

0.01

1

mA

Current

NOTES:

2538 tbl 05

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

°C ambient.

4. The test limit for this parameter is

5. This parameter is guaranteed but not tested.