PI6C184-02 Datasheet, PDF (1/6 Pages) Pericom Semiconductor Corporation – Precision 1-13 Clock Buffer

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Precision 1-13 Clock Buffer
Features
• High speed, low noise non-inverting 1-13 buffer
• Supports up to four SDRAM DIMMs
• 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
• 28-pin SSOP and SOIC packages (H, S)
Description
The PI6C184-02 is a high-speed low-noise 1-13 non-inverting
buffer designed for SDRAM clock buffer applications.
This buffer is intended to be used with the PI6C104 clock generator
for Intel Architecture for both desktop and 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 13 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
SCLOCK
I2C
I/O
SDRAM0
SDRAM1
SDRAM2
SDRAM3
SDRAM12
Pin Configuration
V_DD
SDRAM0
SDRAM1
V_SS
V_DD
SDRAM2
SDRAM3
V_SS
BUF_IN
SDRAM4
SDRAM5
SDRAM12
V_DD
SDATA
1
28
2
27
3
26
4
25
5
24
6 _28-Pin 23
7 H, S 22
8
21
9
20
10
19
11
18
12
17
13
16
14
15
V_DD
SDRAM11
SDRAM10
V_SS
V_DD
SDRAM9
SDRAM8
V_SS
V_DD
SDRAM7
SDRAM6
V_SS
V_SS
SCLK
1
PS8319 05/03/00