W83178S Winbond Electronics, W83178S Datasheet - Page 2

• Manufacturer Part Number: W83178S
• Manufacturer: Winbond Electronics

Specifications of W83178S

• Number Of Outputs: 13
• Operating Supply Voltage (max): 3.465V
• Operating Temp Range: 0C to 70C
• Propagation Delay Time: 4ns
• Operating Supply Voltage (min): 3.135V
• Mounting: Surface Mount
• Pin Count: 28
• Operating Supply Voltage (typ): 3.3V
• Package Type: SOP
• Input Frequency: 150MHz
• Duty Cycle: 55%
• Operating Temperature Classification: Commercial
• Lead Free Status / Rohs Status: Not Compliant

4. BLOCK DIAGRAM
5. PIN DESCRIPTION
IN - Input
OUT - Output
I/O - Bi-directional Pin
* - Internal 250K
SDRAM [ 0:12]
*SDATA
*SDCLK
BUFFER_IN
V
Vss
DD
SYMBOL
pull-up
11, 12, 18, 19,
Buffer_In
22, 23, 26, 27
2, 3, 6, 7, 10,
1, 5, 13, 20,
4, 8, 16, 17,
SDATA
SCLK
24, 28
21, 25
PIN
14
15
9
Serial port
I/O
I/O
IN
IN
O
-
-
SDRAM clock outputs which have the same
frequency as CPU clocks.
Serial data of I
Serial clock of I
Clock Input from the chipset
Power supply
Circuit ground
- 2 -
device Control
2
Preliminary W83178S
C 2-wire control interface
2
C 2-wire control interface
SDRAM0
SDRAM1
SDRAM2
SDRAM3
SDRAM6
SDRAM8
SDRAM9
SDRAM4
SDRAM5
SDRAM7
SDRAM10
SDRAM11
SDRAM12
FUNCTION