4

MILITARYANDINDUSTRIALTEMPERATURERANGES

IDT54/74FCT163T/AT/CT

FASTCMOSSYNCHRONOUSPRESETTABLEBINARYCOUNTER

POWER SUPPLY CHARACTERISTICS

Symbol

Parameter

Min.

Max.

Unit

Quiescent Power Supply Current

—

0.5

2

mA

TTL Inputs HIGH

(3)

Dynamic Power Supply Current

(4)

—

0.15

0.25

mA/

Load Mode

MHz

CEP = CET =

PE = GND

OneInputToggling

50% Duty Cycle

Total Power Supply Current

(6)

—

1.5

3.5

mA

Load Mode

50% Duty Cycle

CEP = CET =

PE = GND

—

2

5.5

One Bit Toggling

50% Duty Cycle

—

3.8

7.3

(5)

Load Mode

50% Duty Cycle

CEP = CET =

PE = GND

—

5

12.3

(5)

Four Bits Toggling

50% Duty Cycle

NOTES:

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

4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.

All currents are in milliamps and all frequencies are in megahertz.