W40S11-23G Cypress Semiconductor Corp, W40S11-23G Datasheet - Page 3
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W40S11-23G
Manufacturer Part Number
W40S11-23G
Description
Manufacturer
Cypress Semiconductor Corp
Specifications of W40S11-23G
Number Of Outputs
13
Operating Supply Voltage (max)
3.47V
Operating Temp Range
0C to 70C
Operating Supply Voltage (min)
3.14V
Mounting
Surface Mount
Pin Count
28
Operating Supply Voltage (typ)
3.3V
Package Type
SOIC
Operating Temperature Classification
Commercial
Lead Free Status / RoHS Status
Not Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
W40S11-23G
Manufacturer:
ICWORKS
Quantity:
20 000
Writing Data Bytes
Each bit in the data bytes control a particular device function.
Bits are written MSB (most significant bit) first, which is bit 7.
Table 2. Data Bytes 0–2 Serial Configuration Map
Note:
2.
Data Byte 0 SDRAM Active/Inactive Register (1 = Enable, 0 = Disable)
Data Byte 1 SDRAM Active/Inactive Register (1 = Enable, 0 = Disable)
Data Byte 2 SDRAM Active/Inactive Register (1 = Enable, 0 = Disable)
At power-up all SDRAM outputs are enabled and active. Program Reserved bits to a “0.”
Bit(s)
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Pin No.
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
11
10
27
26
23
22
19
18
12
7
6
3
2
Affected Pin
SDRAM11
SDRAM10
SDRAM12
Pin Name
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
SDRAM5
SDRAM4
SDRAM3
SDRAM2
SDRAM1
SDRAM0
SDRAM9
SDRAM8
SDRAM7
SDRAM6
Clock Output Disable
Clock Output Disable
(Reserved)
(Reserved)
Clock Output Disable
Clock Output Disable
Clock Output Disable
Clock Output Disable
Clock Output Disable
Clock Output Disable
Clock Output Disable
Clock Output Disable
(Reserved)
(Reserved)
Clock Output Disable
Clock Output Disable
(Reserved)
Clock Output Disable
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
Control Function
[2]
3
Table 2 gives the bit formats for registers located in Data
Bytes 0–6.
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
--
--
--
--
--
--
0
-
-
-
-
-
Bit Control
W40S11-23
Active
Active
Active
Active
Active
Active
Active
Active
Active
Active
Active
Active
Active
--
--
--
--
--
--
1
-
-
-
-
-