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
•
I
2
C Serial Configuration interface
•
Multiple V
DD
, V
SS
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 I
2
C
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 I
2
C components from Pericom conveys a license to
use them in an I
2
C system as defined by Philips.
Diagram
SDRAM0
Pin Configuration
VDD0
SDRAM1
BUF_IN
SDRAM2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VDD5
SDRAM7
SDRAM0
SDRAM1
VSS0
VDD1
SDRAM2
SDRAM6
VSS5
VDD4
SDRAM5
SDRAM4
VSS4
OE
VDD3
SDRAM9
VSS3
VSSIIC
SCLOCK
SDRAM3
SDRAM3
VSS1
BUF_IN
SDRAM9
OE
SDATA
SCLOCK
I2C
I/O
VDD2
SDRAM8
VSS2
VDDIIC
SDATA
1
PS8165D
07/19/04
PERICOM [ PERICOM SEMICONDUCTOR CORPORATION ]
