PI6C185-00Q(2003) Просмотр технического описания (PDF) - Pericom Semiconductor
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PI6C185-00Q Datasheet PDF : 7 Pages
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Precision 1-7 Clock Buffer
Product Features
• High-speed, low-noise non-inverting 1-7 buffer
• Switching speed up to 128 MHz
• Supports up to three mobile SDRAM DIMMs
• Low skew (<250ps) between any two output clocks
• I2C Serial Configuration interface
• Multiple VDD, VSS pins for noise reduction
• 3.3V power supply voltage
• QSOP (Q) package
Description
The PI6C185-00 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 genera-
tor 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
BUF_IN
SDATA
I2C
SCLOCK
I/O
SDRAM0
SDRAM1
SDRAM2
SDRAM3
SDRAM6
Pin Configuration
VDD 1
SDRAM0 2
SDRAM1 3
VSS 4
BUF_IN 5
VDD 6
SDRAM2 7
VSS 8
VDD 9
SDATA 10
20 VDD
19 SDRAM6
18 SDRAM5
17 VSS
16 VDD
15 SDRAM4
14 SDRAM3
13 VSS
12 VSS
11 SCLK
1
PS8317B 07/31/03
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