PI6C185-01B Datasheet, PDF (1/6 Pages) Pericom Semiconductor Corporation – Precision 1-5 Clock Buffer

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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
• 16-pin TSSOP (L) and QSOP (Q) packages
Description
The PI6C185-01B, a high-speed low-noise 1-5 non-inverting buffer
designed for SDRAM clock buffer applications, 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 five 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
Vdd 1
16 Vdd
SDRAM0 2
15 SDRAM4
SDRAM1 ₃
14 Vss
Vss 4
16-Pin
L, Q
13
Vdd
BUF_IN 5
12 SDRAM3
Vdd 6
11 SDRAM2
SDATA 7
10 Vss
SCLK 8
9 Vss
SDATA
SCLOCK
I2C
I/O
1
PS8466 05/03/00