CY7C0831AV-133BBXI Cypress Semiconductor Corp, CY7C0831AV-133BBXI Datasheet - Page 19

• Manufacturer Part Number: CY7C0831AV-133BBXI
• Description: CY7C0831AV-133BBXI
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C0831AV-133BBXI

• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Synchronous
• Memory Size: 2M (128K x 18)
• Speed: 133MHz
• Interface: Parallel
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Switching Waveforms
Notes
Document #: 38-06059 Rev. *S
40. CE
41. No dead cycle exists during counter reset. A Read or Write cycle may be coincidental with the counter reset.
42. Retransmit happens if the counter remains in increment mode after it wraps to initially loaded value.
0
DATA
= BE0 – BE1 = LOW; CE
INTERNAL
ADDRESS
ADDRESS
INTERNAL
ADDRESS
ADDRESS
CNTEN
DATA
CNTRST
DATA
ADS
OUT
CNTEN
CLK
ADS
R/W
CLK
IN
[42]
IN
t
t
t
SAD
SCN
t
SA
SD
t
SRST
A
x
WRITE EXTERNAL
t
1
D
HRST
A
= MRST = CNT/MSK = HIGH.
t
COUNTER
n
n
CH2
ADDRESS
t
CH2
RESET
t
CYC2
(continued)
t
CYC2
t
t
t
HAD
HCN
t
t
HA
HD
CL2
t
SW
t
t
CL2
SD
A
Figure 14. Write with Address Counter Advance
n
D
0
t
t
HW
HD
ADDRESS 0
D
n+1
WRITE
WRITE WITH
COUNTER
Figure 15. Counter Reset
0
t
CKLZ
ADDRESS 0
D
n+1
READ
WRITE COUNTER
A
n+1
HOLD
ADDRESS 1
t
D
CD2
n+2
[40, 41]
READ
1
Q
CY7C0832BV, CY7C0833AV
A
CY7C0837AV, CY7C0830AV
CY7C0831AV, CY7C0832AV
0
A
n
ADDRESS A
n+2
WRITE WITH COUNTER
t
[39]
READ
D
CD2
n+3
A
t
SA
n
n
A
Q
m
1
A
t
ADDRESS A
HA
n+3
D
READ
n+4
A
m
m
A
Q
n+4
A
n
p
Page 19 of 28
A
p
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