CY7C109B-20VI Cypress Semiconductor Corp, CY7C109B-20VI Datasheet - Page 8

• Manufacturer Part Number: CY7C109B-20VI
• Description: SRAM Chip Async Single 5V 1M-Bit 128K x 8 20ns 32-Pin SOJ
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C109B-20VI

• Package: 32SOJ
• Timing Type: Asynchronous
• Density: 1 Mb
• Typical Operating Supply Voltage: 5 V
• Address Bus Width: 17 Bit
• Number Of I/o Lines: 8 Bit
• Number Of Ports: 1
• Number Of Words: 128K

Switching Waveforms
Write Cycle No. 3 (WE Controlled, OE LOW)
Truth Table
Document #: 38-05038 Rev. *A
CE
ADDRESS
H
DATA I/O
X
L
L
L
1
CE
CE
WE
1
2
CE
H
H
H
X
L
2
NOTE 15
OE
H
X
X
L
X
t
SA
WE
(continued)
X
X
H
H
L
High Z
High Z
Data Out
Data In
High Z
t
HZWE
I/O
0
–I/O
[14]
7
t
AW
t
SCE
Power-Down
Power-Down
Read
Write
Selected, Outputs Disabled
t
SCE
t
WC
t
PWE
DATA VALID
t
SD
Mode
t
t
HA
LZWE
t
HD
Standby (I
Standby (I
Active (I
Active (I
Active (I
CY7C1009B
CY7C109B
CC
CC
CC
Power
SB
SB
)
)
)
)
)
Page 8 of 12