w83176g-735 Winbond Electronics Corp America, w83176g-735 Datasheet - Page 4

• Manufacturer Part Number: w83176g-735
• Description: Winbond 3 Dimm Ddr Zero Delay Buffer
• Manufacturer: Winbond Electronics Corp America

1. GENERAL DESCRIPTION
The W83176R-735 is a 2.5V Zero-delay D.D.R. Clock buffer designed for SiS system. W83176R-735
can support 3 D.D.R. DRAM DIMMs.
The W83176R-735 provides I
clock outputs. The W83176R-735 accepts a reference clock as its input and runs on 2.5V supply.
2. PRODUCT FEATURES
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3. PIN CONFIGURATION
*: Internal pull-up resistor 120K to VDD
Low Skew outputs (< 100ps)
Supports 400MHz D.D.R. SDRAM
Zero-delay clock outputs
Feedback pins for synchronous
Supports up to 3 D.D.R. DIMMs
One pairs of additional outputs for feedback
I
48-pin SSOP package
2
C 2-Wire serial interface and supports Byte or Block Date RW
3 DIMM DDR ZERO DELAY BUFFER FOR SIS CHIPSET
C L K _ I N T
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C L K C 0
C L K C 1
C L K C 2
C L K C 3
C L K C 4
C L K T 0
C L K T 1
C L K T 2
C L K T 3
C L K T 4
A G
A V D D
S C L K
G
G
G
G
G
V D D
V D D
V D D
V D D
N / C
N D
N D
N D
N D
N D
N D
1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
2 0
2 1
2 2
2 3
2 4
2
C serial bus interface to program the registers to enable or disable each
- 1 -
W83176R-735/W83176G-735
Publication Release Date: March 31, 2006
4 8
4 7
4 6
4 5
4 4
4 3
4 2
4 1
4 0
3 9
3 8
3 7
3 6
3 5
3 4
3 3
3 2
3 1
3 0
2 9
2 8
2 7
2 6
2 5
G
C L K C 5
C L K T 5
V D D
C L K T 6
C L K C 6
G
G
C L K C 7
C L K T 7
V D D
S D A T A
N / C
F B _ I N T
V D D
F B _ O
N C
G
C L K C 8
C L K T 8
V D D
C L K T 9
C L K C 9
G
N D
N D
N D
N D
N D
U T T
Revision 1.1
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