W256 Cypress Semiconductor Corp., W256 Datasheet - Page 7

• Manufacturer Part Number: W256
• Description: 12 Output Buffer For 2 DDR And 3 Sdram Dimms
• Manufacturer: Cypress Semiconductor Corp.

Layout Example Single Voltage
+3.3V Supply or 2.5V Supply
Note: Each supply plane or strip should have a ferrite bead and capacitors
All bypass caps = 0.1 F ceramic
Cermaic Caps C1 = 10 – 22 µF
G = VIA to GND plane layer
FB = Dale ILB1206 - 300 (300 @ 100 MHz)
Preliminary
G
C2
G
G
0.005 F
FB
G
10 F
G
C1
10
11
12
14
13
1
2
3
4
5
6
7
8
9
VDD
7
V
G
V
G
G
G
V
V =VIA to respective supply plane layer
C2 = .005 µF
G
G
G
G
G
V
V
28
27
26
25
24
23
22
21
20
18
16
15
19
17
G
G
W256