cy2314anz Cypress Semiconductor Corporation., cy2314anz Datasheet - Page 2

• Manufacturer Part Number: cy2314anz
• Description: 14 Output, 3.3v Sdram Buffer For Desktop Pcs With 3 Dimms
• Manufacturer: Cypress Semiconductor Corporation.

Pin Summary
Device Functionality
Serial Configuration Map
Byte 0:SDRAM Active/Inactive Register
(1 = Enable, 0 = Disable), Default = Enabled
Document #: 38-07143 Rev. *A
V
V
V
V
BUF_IN
OE
SDATA
SCLK
SDRAM [0-13]
• 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 CY2314ANZ is:
Bit 7 11
Bit 6 10
Bit 5 --
Bit 4 --
Bit 3 7
Bit 2 6
Bit 1 3
Bit 0 2
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
SDRAM5 (Active/Inactive)
SDRAM4 (Active/Inactive)
Reserved, drive to 0
Reserved, drive to 0
SDRAM3 (Active/Inactive)
SDRAM2 (Active/Inactive)
SDRAM1 (Active/Inactive)
SDRAM0 (Active/Inactive)
A4
0
Pins
1, 5, 24, 28
4, 8, 21, 25
13
16
9
20
14
15
2, 3, 6, 7, 10, 11, 18, 19, 22, 23, 26,
27, 12, 17
A3
1
Description
A2
0
SDRAM [0-13]
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 clock outputs
Description
DD
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
--
--
19
18
17
12
--
--
--
--
--
--
Pin #
Pin #
SDRAM13 (Active/Inactive)
SDRAM12 (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
SDRAM11 (Active/Inactive)
SDRAM10 (Active/Inactive)
SDRAM9 (Active/Inactive)
SDRAM8 (Active/Inactive)
Reserved, drive to 0
Reserved, drive to 0
SDRAM7 (Active/Inactive)
SDRAM6 (Active/Inactive)
DD
DD
Description
Description
CY2314ANZ
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