pi6c185-01 Pericom Semiconductor Corporation, pi6c185-01 Datasheet

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pi6c185-01

Manufacturer Part Number
pi6c185-01
Description
3.3v, 140mhz Mobile Pc 1 5 Output Clock Driver
Manufacturer
Pericom Semiconductor Corporation
Datasheet

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1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2
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
• I
• Multiple V
• 3.3V power supply voltage
• Packaging (Pb-free & Green available):
Block Diagram
-16-pin TSSOP (L)
- 16-pin QSOP (Q)
2
BUF_IN
C Serial Configuration interface
DD
SCLOCK
SDATA
, V
SS
pins for noise reduction
I 2 C
I/O
SDRAM0
SDRAM1
SDRAM2
SDRAM3
SDRAM4
1
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 I
Serial control may be used to individually activate/deactivate any
of the 5 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®.
Pin Configuration
SDRAM1
SDRAM0
BUF_IN
SDATA
SCLK
V
V
V
DD
DD
SS
Precision 1-5 Clock Buffer
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
PI6C185-01
V
SDRAM4
V
V
SDRAM3
SDRAM2
V
V
DD
SS
DD
SS
SS
PS8318E
10/14/04
2
C

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pi6c185-01 Summary of contents

Page 1

... SDATA I/O SCLOCK Description The PI6C185- 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 I Serial control may be used to individually activate/deactivate any of the 5 output drivers ...

Page 2

... PI6C185- PS8318E 10/14/04 ...

Page 3

... The I C interface permits individual enable/disable of each clock output and test mode enable. The PI6C185- slave receiver device. It can not be read back. Sub-addressing is not supported. All preceding bytes must be sent in order to change one of the control bytes. Every bite put on the SDATA line must be 8-bits long (MSB first), followed by an acknowledge bit generated by the receiving device ...

Page 4

... MHz Min. Max. Min. 15.0 15.5 10.0 5.6 3.3 5.3 3.1 1.5 4.0 1.5 1.5 4.0 1.5 1.0 5.5 1.0 1.0 5.5 1 250 4 Precision 1-5 Clock Buffer . – – 133 MHz Units Max. Min. Max. 10.5 7.5 8.0 ns 2.2 ns 2.0 ns 4.0 1.4 4.0 V/ns 4.0 1.4 4.0 V/ns 5.0 1.0 5.0 ns 5.0 1.0 5 250 250 ps PI6C185-01 PS8318E 10/14/04 ...

Page 5

... Test Load tSDKP tSDKH 2.4 1.5 0 SDRISE SDFALL 1.5V t plh 1.5V Figure 1. Clock Waveforms Precision 1-5 Clock Buffer Test Point tSDKL 1.5V t phl 1.5V PI6C185- PS8318E 10/14/04 ...

Page 6

... Figure 2. Design Guidelines Packaging Mechanical: 16-Pin TSSOP (L) 16 .169 .177 1 .193 .201 4.9 5.1 .002 .006 .007 .0256 BSC .012 0.65 0.19 0. SDRAM DIMM C Spec. L 4.3 4.5 .047 max. 1.20 SEATING PLANE 0.05 0.15 X.XX DENOTES CONTROLLING X.XX DIMENSIONS IN MILLIMETERS 6 PI6C185-01 Precision 1-5 Clock Buffer .004 0.09 0.20 .008 0.45 .018 0.75 .030 .252 BSC 6.4 PS8318E 10/14/04 ...

Page 7

... REF .025 BSC 0.635 Ordering Information Ordering Code PI6C185-01L PI6C185-01LE PI6C185-01Q PI6C185-01QE PI6C185-01QI PI6C185-01QIE Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com .150 3.81 .157 3.99 Guage Plane .010 0.254 Detail A 1.35 .053 1 ...

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