INDUSTRIALTEMPERATURERANGE

IDTQS74FCT2157AT/CT

HIGH-SPEEDCMOSQUAD2-INPUTMULTIPLEXER

3

Symbol

Parameter

Test Conditions

Min.

Max.

Unit

Input HIGH Level

Guaranteed Logic HIGH Level

2

—

—

V

Input LOW Level

Guaranteed Logic LOW Level

—

—

0.8

V

Input Hysteresis

—

0.2

—

V

Input HIGH Current

0

——

±5µA

Input LOW Current

Current Drive

50

—

—

mA

Input Clamp Voltage

—

–0.7

–1.2

V

Output HIGH Voltage

2.4

—

—

V

OutputLOWVoltage

—

—

0.5

V

OutputResistance

20

28

40

Ω

DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE

FollowingConditionsApplyUnlessOtherwiseSpecified:

NOTES:

2. This parameter is guaranteed but not tested.

Symbol

Parameter

Min.

Max.

Unit

Quiescent Power Supply Current

—

1.5

mA

freq = 0

0V

Supply Current per Input TTL Inputs HIGH

—

2

mA

freq = 0

Supply Current per Input per MHz

—

0.25

mA/

Outputs Open and Enabled

MHz

One Bit Toggling

50% Duty Cycle

NOTES:

1. For conditions shown as Min. or Max., use appropriate value specified under DC Electrical Characteristics.

only and does not include power to drive load capacitance or tester capacitance.

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

POWER SUPPLY CHARACTERISTICS