MILITARYANDCOMMERCIAL TEMPERATURERANGES

4

IDT54/74FCT245/A/C

FASTCMOSOCTALBIDIRECTIONALTRANSCEIVER

NOTES:

1. For conditions shown as Min. or Max., 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.

5. Values for these conditions are examples of

fi = Input Frequency

Ni = Number of Inputs at fi

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

POWER SUPPLY CHARACTERISTICS

Symbol

Parameter

Min.

Max.

Unit

Quiescent Power Supply Current

—

0.2

1.5

mA

Quiescent Power Supply Current

—

0.5

2

mA

TTL Inputs HIGH

Dynamic Power Supply

—

0.15

0.25

mA/

Outputs Open

MHz

OE = GND

One Input Toggling

50% Duty Cycle

—2

4

mA

Outputs Open

(FCT)

50% Duty Cycle

—

2.3

5

T/R = OE = GND

One Bit Toggling

—

3.5

Outputs Open

(FCT)

50% Duty Cycle

—

5.5

T/R = OE = GND

Eight Bits Toggling