1

PS8465C

09/07/05

1

2

3

VSS0

4

VDD1

5

SDRAM1

6

SDRAM3

7

VSS1

8

SDRAM2

9

VDD2

10

11

12

13

14

VDD5

SDRAM6

VSS5

SDRAM5

SDRAM4

VSS4

OE

VDD3

SDRAM9

VSS3

VSSIIC

SCLOCK

27

28

26

25

24

23

22

21

20

19

18

17

16

15

VDD0

SDRAM0

BUF_IN

SDRAM8

VSS2

SDATA

VDDIIC

VDD4

SDRAM7

Diagram

Description

The PI6C182B is a high-speed low-noise 1-10 non-inverting buffer

designedforSDRAMclockbufferapplicationsandsupportshigher

frequencies up to 140 MHz.

Serial control may be used to individually activate/deactivate any

of the 10 output drivers.

The output enable (OE) pin may be pulled low to Hi-Z state on

all outputs.

Note:

Features

•

Low noise non-inverting 1-10 buffer

•

Supports frequency up to 140 MHz

•

Supports up to four SDRAM DIMMs

•

Low skew (<200ps) between any two output clocks

•

•

•

3.3V power supply voltage

•

Separate Hi-Z state pin for testing

•

Industrial Temperature Range (-40°C to +85°C)

•

Packaging: (Pb-free & Green available)

—28-pin SSOP (H)

Pin Configuration

Precision 1-10 Clock Buffer

PI6C182B

SDRAM17

SDRAM2

SDRAM1

SDRAM0

BUF_IN

OE

SDATA

SCLOCK

SDRAM3

I2C

I/O