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PI6C185-02
Precision 1-7 Clock Buffer
Features
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High speed, low noise non-inverting 1-7 buffer
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Supports up to three SDRAM DIMMs
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Low skew (<250ps) between any two output clocks
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I
2
C Serial Configuration interface
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Multiple V
DD
, V
SS
pins for noise reduction
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3.3V power supply voltage
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16-pin TSSOP (L) and QSOP (Q) packages
Description
The PI6C185-02 is a high-speed low-noise 1-7 non-inverting
buffer designed for SDRAM clock buffer applications.
This buffer is intended to be used with the PI6C10X clock
generator for Intel Architecture-based Mobile systems.
At power up all SDRAM output are enabled and active. The I2C
Serial control may be used to individually activate/deactivate any
of the 7 output drivers.
Note:
Purchase of I2C components from Pericom conveys a license to
use them in an I2C system as defined by Philips.
Block Diagram
SDRAM0
Pin Configuration
SDRAM1
BUF_IN
SDRAM2
SDRAM3
V
DD
SDRAM0
SDRAM1
V
SS
BUF_IN
SDRAM2
V
DD
SDATA
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
SDRAM6
SDRAM5
V
SS
V
DD
SDRAM4
SDRAM3
V
SS
SCLK
SDRAM6
SDATA
SCLOCK
I2C
I/O
1
PS8371
05/03/00