PI6C185-01 Datasheet, PDF (1/7 Pages) Pericom Semiconductor Corporation – Precision 1-5 Clock Buffer

PI6C185-01
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Precision 1-5 Clock Buffer
Features
• High-speed, low-noise non-inverting 1-5 buffer
• Switching speed up to 140 MHz
• Supports up to two SODIMMs
• Low skew (<250ps) between any two output clocks
• I²C Serial Configuration interface
• Multiple V_DD, V_SS pins for noise reduction
• 3.3V power supply voltage
• Packaging (Pb-free & Green available):
-16-pin TSSOP (L)
- 16-pin QSOP (Q)
Description
The PI6C185-01 is a high-speed low-noise 1-5 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 outputs are enabled and active. The I²C
Serial control may be used to individually activate/deactivate any
of the 5 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
SDRAM0
SDRAM1
SDRAM2
SDRAM3
SDRAM4
Pin Configuration
V_DD 1
SDRAM0 2
SDRAM1 ₃
V_SS 4
BUF_IN 5
V_DD 6
SDATA 7
SCLK 8
16 V_DD
15 SDRAM4
14 V_SS
13 V_DD
12 SDRAM3
11 SDRAM2
10 V_SS
9 V_SS
SDATA
I2C
SCLOCK
I/O
1
PS8318E 10/14/04