PI74FCT652T datasheet(6/7 Pages) PERICOM

6 / 7 page

PS2022A 03/11/96

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PI74FCT646/648/651/652T

(25

Ω

Ω Series) P174FCT2646T/2652T

OCTAL REGISTERED TRANSCEIVERS

PI74FCT646/2646T Switching Characteristics over Operating Range

646T/2646T

646AT/2646AT

646CT

646DT

Com.

Parameters

Description

Conditions(1)

Min

Max

Min

Max

Min

Max

Min

Max

Unit

tPLH

Propagation Delay

CL = 50 pF

2.0

7.5

2.0

6.3

1.5

5.4

1.5

4.8

tPHL

Bus to Bus

RL = 500

Ω

tPZH

Output Enable Time

2.0

14.0

2.0

9.8

1.5

7.8

1.5

7.3

tPZL

G, DIR to Bus

tPHZ

Output Disable Time(3)

2.0

9.0

2.0

6.3

1.5

6.3

1.5

6.3

tPLZ

G, DIR to Bus

tPLH

Propagation Delay

2.0

9.0

2.0

6.3

1.5

5.7

1.5

5.2

tPHL

Clock to Bus

tPLH

Propagation Delay

2.0

9.5

2.0

7.7

1.5

6.2

1.5

5.8

tPHL

SBA or SAB to Bus

tSU

Setup Time HIGH or

4.0

—

2.0

—

2.0

—

2.0

—

LOW, BUS to Clock

Hold Time HIGH or

2.0

—

1.5

—

1.5

—

1.5

—

LOW, Bus to Clock

Clock Pulse Width(3)

6.0

—

5.0

—

5.0

—

5.0

—

HIGH or LOW

PI74FCT648T Switching Characteristics over Operating Range

648T

648AT

648CT

648DT

Com.

Parameters

Description

Conditions(1)

Min

Max

Min

Max

Min

Max

Min

Max

Unit

tPLH

Propagation Delay

CL = 50 pF

2.0

7.5

2.0

6.3

1.5

5.4

1.5

4.8

tPHL

Bus to Bus

RL = 500

Ω

tPZH

Output Enable Time

2.0

14.0

2.0

9.8

1.5

7.8

1.5

7.3

tPZL

G, DIR to Bus

tPHZ

Output Disable Time(3)

2.0

9.0

2.0

6.3

1.5

6.3

1.5

6.3

tPLZ

G, DIR to Bus

tPLH

Propagation Delay

2.0

9.0

2.0

6.3

1.5

5.7

1.5

5.2

tPHL

Clock to Bus

tPLH

Propagation Delay

2.0

9.5

2.0

7.7

1.5

6.2

1.5

5.8

tPHL

SBA or SAB to Bus

tSU

Setup Time HIGH or

4.0

—

2.0

—

2.0

—

2.0

—

LOW, BUS to Clock

Hold Time HIGH or

2.0

—

1.5

—

1.5

—

1.5

—

LOW, Bus to Clock

Clock Pulse Width(3)

6.0

—

5.0

—

5.0

—

5.0

—

HIGH or LOW

Notes:

1. See test circuit and wave forms.

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

3. This parameter guaranteed but not production tested.

PI74FCT652T Datasheet(PDF) 6 Page - Pericom Semiconductor Corporation

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