1

PS8494

08/09/00

3.3V, 2 x 1:5 CMOS Clock Driver

MON

5

5

PI49FCT32805LogicBlockDiagram

12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012

12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012

PI49FCT32805

Description

Pericom Semiconductor’s PI49FCT series of logic circuits are

produced using the Company’s advanced submicron CMOS

technology to achieve fast speed, low skew, fast slew rate, and low

propagation delay for most computing and communication

applications.

The PI49FCT32805 are non-inverting drivers. The outputs are

configured into 2 groups of 1-in, 5-out with independent output

enable. Group B has an extra MON output. Excellent output signals

to power and ground ratio minimize power and ground noise, and

also improves output performance.

PI49FCT32805 integrate series damping resistors on all outputs.

Features

• Low output skew: <270ps

• Switching frequency of 133 MHz

• Fast output rise/fall time <1.5ns

• Low propagation delay <3.0ns

• Low input capacitance <6.0pF

• Balanced CMOS outputs

• IndustrialTemperature:–40°Cto+85°C

• 3.3V±10%operation

• Packagesavailable:

–20-pin300-milwideSOIC(S)

–20-pin150-milwideQSOP(Q)

–20-pin209-milwideSSOP(H)

VCCA

1

20

OB0

OA0

2

19

OB1

OA1

3

18

OB2

OA2

4

17

GNDB

GNDA

5

16

OB3

OA3

6

15

OB4

OA4

7

14

MON

GNDQ

8

13

OEB

OEA

9

12

INB

INA

10

11

20-Pin

H,Q,S

PI49FCT32805ProductPinConfiguration

ProductPinDescription

PinName

Description

Hi-Z State Output Enable Inputs (Active LOW)

Clock Inputs

Clock Outputs

MON

Monitor Output

GND

Ground

Power

Inputs

Outputs

MON

LL

L

L

LH

H

H

HL

Z

L

HH

Z

H

Note:

1. H = High Voltage Level

L = Low Voltage Level

Z = High Impedance