CY7C057V-20AC Cypress Semiconductor Corp, CY7C057V-20AC Datasheet - Page 10

• Manufacturer Part Number: CY7C057V-20AC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C057V-20AC

• Density: 1.125Mb
• Access Time (max): 20ns
• Sync/async: Asynchronous
• Architecture: Not Required
• Clock Freq (max): Not RequiredMHz
• Operating Supply Voltage (typ): 3.3V
• Address Bus: 15b
• Package Type: TQFP
• Operating Temp Range: 0C to 70C
• Number Of Ports: 2
• Supply Current: 340mA
• Operating Supply Voltage (min): 3.135V
• Operating Supply Voltage (max): 3.465V
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 144
• Word Size: 36b
• Number Of Words: 32K
• Lead Free Status / Rohs Status: Not Compliant

Document #: 38-06055 Rev. *B
Switching Waveforms
Read Cycle No. 3 (Either Port)
Read Cycle No. 2 (Either Port CE/OE Access)
Read Cycle No. 1 (Either Port Address Access)
CURRENT
Notes:
DATA OUT
23. R/W is HIGH for read cycles.
24. Device is continuously selected. CE
25. OE = V
26. Address valid prior to or coinciding with CE
27. To access RAM, CE
ADDRESS
CE
B
B
DATA OUT
B
2
ADDRESS
and SEM=V
0
DATA OUT
3
, B
0
CE
, CE
, WA, BA
, B
3
0
, WA, BA
1
, CE
1
, B
IL
, B
.
I
I
CC
SB
2
OE
0
,
1
, B
IL
, and CE
1
PREVIOUS DATA VALID
,
0
= V
1
= B
IL
, CE
0
= B
1
1
=V
t
= B
OHA
IH
[23, 25, 26, 27]
0
, B
2
= V
= B
0
, B
IL
t
3
, CE
AA
0
, =V
1
, B
transition LOW and CE
t
PU
1
2
IH
=V
, B
t
.
AA
IH
3
t
t
, WA, BA are valid, and SEM = V
LZCE
LZCE
, and B
t
LZCE
[23, 26, 27]
t
t
ACE
ABE
[23, 24, 25]
0
, B
BYTE SELECT VALID
t
LZOE
1
, B
t
t
SELECT VALID
RC
ACE
2
1
t
, B
RC
transition HIGH.
t
DOE
3
, WA, BA are valid. This waveform cannot be used for semaphore reads.
CHIP SELECT VALID
IH
. To access semaphore, CE
DATA VALID
DATA VALID
0
= V
t
OHA
IH
, CE
t
t
t
OHA
HZCE
PD
1
t
=V
t
t
HZCE
HZCE
HZOE
IL
and SEM = V
CY7C056V
CY7C057V
Page 10 of 23
IL
or CE
0
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