PI74FCT2823T datasheet(7/7 Pages) PERICOM

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PI74FCT821T/823T/825T

(25

Ω

Ω Series) P174FCT2821T/2823T

BUS INTERFACE REGISTERS

PS2023A 03/11/96

PI74FCT825T Switching Characteristics over Operating Range

825AT

825BT

825CT

Com.

Parameters

Description

Conditions(1)

Min

Max

Min

Max

Min

Max

Unit

tPLH

Propagation Delay

CL = 50 pF

1.5

10.0

1.5

7.5

1.5

6.0

tPHL

CP to YN

RL = 500

Ω

(OE = LOW)

CL = 300 pF(3)

1.5

20.0

1.5

15.0

1.5

12.5

RL = 500

Ω

tSU

Setup Time HIGH or

CL = 50 pF

4.0

—

3.0

—

3.0

—

LOW, DN to CP

RL = 500

Ω

Hold Time HIGH or

2.0

—

1.5

—

1.5

—

LOW, DN to CP

tSU

Setup Time HIGH or

4.0

—

3.0

—

3.0

—

LOW, EN to CP

Hold Time HIGH or

2.0

—

LOW, EN to CP

tPHL

Propagation Delay,

1.5

13.0

1.5

9.0

1.5

8.0

CLR to YN

tREM

Recovery Time,

6.0

—

6.0

—

6.0

—

CLR to CP

Clock Pulse Width

7.0

—

5.0

—

6.0

—

HIGH or LOW

CLR Pulse Width(3)

6.0

—

6.0

—

6.0

—

LOW

tPZH

Output Enable Time

CL = 50 pF

1.5

11.5

1.5

8.0

1.5

7.0

tPZL

OE to YN

RL = 500

Ω

CL = 300 pF(3)

1.5

23.0

1.5

15.0

1.5

12.5

RL = 500

Ω

tPHZ

Output Disable Time(3)

CL = 50 pF

1.5

7.0

1.5

6.5

1.5

6.2

tPLZ

OE to YN

RL = 500

Ω

CL = 300 pF(3)

1.5

8.0

1.5

7.5

1.5

6.5

RL = 500

Ω

Notes:

1. See test circuit and wave forms.

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

3. This parameter is guaranteed but not production tested.

Pericom Semiconductor Corporation

2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com

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