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PI6C185-00 Datasheet

  • PI6C185-00

  • Precision 1-7 Clock Buffer

  • 7頁(yè)

  • PERICOM   PERICOM

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PI6C185-00
Precision 1-7 Clock Buffer
Product Features
鈥?/div>
High-speed, low-noise non-inverting 1-7 buffer
鈥?/div>
Switching speed up to 140 MHz (PI6C185-00A)*
鈥?/div>
Supports up to three mobile SDRAM DIMMs
鈥?/div>
Low skew (<250ps) between any two output clocks
鈥?/div>
I
2
C Serial Configuration interface
鈥?/div>
Multiple V
DD
, V
SS
pins for noise reduction
鈥?/div>
3.3V power supply voltage
鈥?/div>
20-pin TSSOP (L) and QSOP (Q) packages
* Maximum Operating Frequencies:
PI6C185-00 = 125 MHz;
PI6C185-00A = 140 MHz.
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 I
2
C
Serial control may be used to individually activate/deactivate any
of the 7 output drivers.
Note:
Purchase of I
2
C components from Pericom conveys a license to use
them in an I
2
C system as defined by Philips.
Block Diagram
Pin Configuration
SDRAM0
V
DD
1
2
3
4
5
6
7
8
9
10
20
19
18
17
V
DD
SDRAM6
SDRAM5
V
SS
V
DD
SDRAM4
SDRAM3
V
SS
V
SS
SCLK
SDRAM1
BUF_IN
SDRAM2
SDRAM0
SDRAM1
V
SS
BUF_IN
V
DD
SDRAM2
SDRAM3
20-Pin
L, Q
16
15
14
13
12
11
SDRAM6
V
SS
SDATA
SCLOCK
I2C
I/O
V
DD
SDATA
1
PS8317A
03/22/01

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