cy2310anz Cypress Semiconductor Corporation., cy2310anz Datasheet - Page 2

• Manufacturer Part Number: cy2310anz
• Description: 3.3v Sdram Buffer For Mobile Pcs With 4 So-dimms
• Manufacturer: Cypress Semiconductor Corporation.

Document #: 38-07142 Rev. *B
Pin Summary
Device Functionality
Serial Configuration Map
Byte 0:SDRAM Active/Inactive Register
(1 = Enable, 0 = Disable), Default = Enabled
V
V
V
V
BUF_IN
OE
SDATA
SCLK
SDRAM [0–3]
SDRAM [4–7]
SDRAM [8–9]
Bit 7 --
Bit 6 --
Bit 5 --
Bit 4 --
Bit 3 7
Bit 2 6
Bit 1 3
Bit 0 2
• The Serial bits will be read by the clock driver in the following
• Reserved and unused bits should be programmed to “0”.
• Serial interface address for the CY2310ANZ is:
Bit
Name
DD
SS
DDIIC
SSIIC
order:
A6
1
Byte 0 - Bits 7, 6, 5, 4, 3, 2, 1, 0
Byte 1 - Bits 7, 6, 5, 4, 3, 2, 1, 0
.
Byte N - Bits 7, 6, 5, 4, 3, 2, 1, 0
Pin #
A5
1
OE
0
1
Initialize to 0
Initialize to 0
Initialize to 0
Initialize to 0
SDRAM3 (Active/Inactive)
SDRAM2 (Active/Inactive)
SDRAM1 (Active/Inactive)
SDRAM0 (Active/Inactive)
A4
0
Pins
1, 5, 10, 19, 24, 28
4, 8, 12, 17, 21, 25
13
16
9
20
14
15
2, 3, 6, 7
22, 23, 26, 27
11, 18
A3
1
Description
A2
0
SDRAM [0–17]
1 x BUF_IN
A1
0
High-Z
A0
1
R/W
----
3.3V Digital voltage supply
Ground
Serial interface voltage supply
Ground for serial interface
Input clock
Output Enable, three-states outputs when LOW. Internal pull-up to V
Serial data input, internal pull-up to V
Serial clock input, internal pull-up to V
SDRAM byte 0 clock outputs
SDRAM byte 1 clock outputs
SDRAM byte 2 clock outputs
Description
Byte 1: SDRAM Active/Inactive Register
(1 = Active, 0 = Inactive), Default = Active
Byte 2: SDRAM Active/Inactive Register
(1 = Active, 0 = Inactive), Default = Active
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit
Bit
27
26
23
22
--
--
--
--
18
11
--
--
--
--
--
--
Pin #
Pin #
SDRAM9 (Active/Inactive)
SDRAM8 (Active/Inactive)
Reserved, drive to 0
Reserved, drive to 0
Reserved, drive to 0
Reserved, drive to 0
Reserved, drive to 0
Reserved, drive to 0
SDRAM7 (Active/Inactive)
SDRAM6 (Active/Inactive)
SDRAM5 (Active/Inactive)
SDRAM4 (Active/Inactive)
Initialize to 0
Initialize to 0
Initialize to 0
Initialize to 0
DD
DD
Description
Description
CY2310ANZ
Page 2 of 8
DD
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