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PI74LPT16827

Fast CMOS 3.3V 20-Bit Buffers

Pericom Semiconductor 

PI74LPT16827

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Switching Characteristics over Operating Range(1)

Parameters Description

Conditions(2)

LPT16827A

Com.

Min.(3) Max.

tPLH

Propagation Delay

tPHL

DN to YN

tPZH

Output Enable Time

tPZL

OEN to YN

tPHZ

Output Disable Time(4)

tPLZ

OEN to YN

tSK(o)

Output Skew(5)

CL = 50 pF

RL = 500Ω

CL = 300 pF(4)

RL = 500Ω

CL = 50 pF

RL = 500Ω

CL = 300 pF(4)

RL = 500Ω

CL = 50 pF(4)

RL = 500Ω

CL = 50 pF

RL = 500Ω

1.5

6.5

1.5

15.0

1.5

9.5

1.5

23.0

1.5

8.5

1.5

10.0

—

0.5

LPT16827B

Com.

Min.(3) Max.

1.5

5.0

1.5

13.0

1.5

8.0

1.5

15.0

1.5

6.0

1.5

7.0

—

0.5

LPT16827C

Com.

Min.(3) Max.

1.5

4.4

1.5

10.0

1.5

7.0

1.5

14.0

1.5

5.7

1.5

6.0

—

0.5

Units

ns

ns

ns

ns

ns

ns

ns

Notes:

1. Propagation Delays and Enable/Disable times are with Vcc = 3.3V ±0.3V, normal range. For Vcc = 2.7V,

extended range, all Propagation Delays and Enable/Disable times should be degraded by 20%.

2. See test circuit and waveforms.

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

4. This parameter is guaranteed but not production tested.

5. Skew between any two outputs, of the same package, switching in the same direction. This parameter is

guaranteed by design.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Pericom Semiconductor Corporation

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

5

PS2075A 01/16/97

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