CY2318ANZ Cypress Semiconductor, CY2318ANZ Datasheet - Page 2

• Manufacturer Part Number: CY2318ANZ
• Description: 3.3V SDRAM Buffer for Desktop PCs with 4 DIMMs
• Manufacturer: Cypress Semiconductor

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Document #: 38-07181 Rev. *B
Pin Summary
Device Functionality
V
V
V
V
BUF_IN
OE
SDATA
SCLK
SDRAM [0–3]
SDRAM [4–7]
SDRAM [8–11]
SDRAM [12–15] 40, 41, 44, 45
SDRAM [16–17] 21, 28
N/C
Note:
1. Internal pull-up resistor to V
Name
DD
SS
DDIIC
SSIIC
OE
0
1
Pins
3, 7, 12, 16, 20, 29, 33, 37, 42, 46
6, 10, 15, 19, 22, 27, 30, 34, 39, 43 Ground
23
26
11
38
24
25
4, 5, 8, 9
13, 14, 17, 18
31, 32, 35, 36
1, 2, 47, 48
DD
(value > 100 kohms)
SDRAM [0–17]
1 x BUF_IN
Hi-Z
3.3V Digital voltage supply
Serial interface voltage supply
Ground for serial interface
Input clock (5V Tolerant)
Output Enable (active HIGH), Three-state outputs when low
Serial data input
Serial clock input
SDRAM byte 0 clock outputs
SDRAM byte 1 clock outputs
SDRAM byte 2 clock outputs
SDRAM byte 3 clock outputs
SDRAM clock outputs usable for feedback
Reserved for future modifications, do not connect in system
Description
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CY2318ANZ
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