PI6C182 Просмотр технического описания (PDF) - Pericom Semiconductor
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PI6C182 Datasheet PDF : 7 Pages
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PI6C182
Precision 1-10 Clock Buffer
Features
• Low noise non-inverting 1-10 buffer
• Supports frequency up to 125 MHz (PI6C182A)
• Supports up to four SDRAM DIMMs
• Low skew (<200ps) between any two output clocks
• I2C Serial Configuration interface
• Multiple VDD, VSS pins for noise reduction
• 3.3V power supply voltage
• Separate Hi-Z state pin for testing
• Packaging:
-28-pin SSOP (H)
Description
Pericom Semiconductor’s PI6C clock series is produced using
the company’s advanced submicron CMOS technology, achieving
industry leading speed.
The PI6C182 is a high-speed low-noise 1-10 noninverting buffer
designed for SDRAM clock buffer applications, supports frequen-
cies up to 110 MHz.
At power up all SDRAM output are enabled and active. The I2C
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 all
outputs.
Note:
Purchase of I2C components from Pericom conveys a license to
use them in an I2C system as defined by Philips.
Diagram
BUF_IN
OE
SDATA
I2C
SCLOCK
I/O
SDRAM0
SDRAM1
SDRAM2
SDRAM3
SDRAM9
Pin Configuration
VDD0 1
SDRAM0 2
SDRAM1 3
VSS0 4
VDD1 5
SDRAM2 6
SDRAM3 7
VSS1 8
BUF_IN 9
VDD2 10
SDRAM8 11
VSS2 12
VDDIIC 13
SDATA 14
28 VDD5
27 SDRAM7
26 SDRAM6
25 VSS5
24 VDD4
23 SDRAM5
22 SDRAM4
21 VSS4
20 OE
19 VDD3
18 SDRAM9
17 VSS3
16 VSSIIC
15 SCLOCK
1
PS8165D
07/19/04
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