PI74FCT280T

9-BIT PARITY GENERATOR/CHECKER

3

PS2014A 03/11/96

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Parameters Description

Test Conditions

(1)

Min

Typ

(2)

Max

Units

Output HIGH Voltage

2.4

3.0

V

Output LOW Current

0.3

0.50

V

Input HIGH Voltage

Guaranteed Logic HIGH Level

2.0

V

Input LOW Voltage

Guaranteed Logic LOW Level

0.8

V

Input HIGH Current

1µA

Input LOW Current

–1

µA

Clamp Diode Voltage

–0.7

–1.2

V

Short Circuit Current

–60

–120

mA

Power Down Disable

—

—

100

µA

Input Hysteresis

200

mV

280T

280AT

280BT

280CT

Com.

Com.

Com.

Com.

Parameters Description

Min

Max

Min

Max

Min

Max

Min

Max

Unit

3.0

10.0

3.0

7.5

3.0

6.3

3.0

5.3

ns

I0 – I8 to

∑even

Ω

Propagation Delay

3.0

10.0

3.0

7.5

3.0

6.3

3.0

5.3

ns

I0 – I8 to

∑odd

Notes:

1. See test circuit and waveforms.

2. Minimum limits are guaranteed but not tested on Propagation Delays.

Notes:

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

2. Typical values are at Vcc = 5.0V, +25°C ambient and maximum loading.

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

Switching Characteristics over Operating Range