CY7C1049B-20VI Cypress Semiconductor Corp, CY7C1049B-20VI Datasheet - Page 6

• Manufacturer Part Number: CY7C1049B-20VI
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C1049B-20VI

• Density: 4Mb
• Access Time (max): 20ns
• Sync/async: Asynchronous
• Architecture: Not Required
• Clock Freq (max): Not RequiredMHz
• Operating Supply Voltage (typ): 5V
• Address Bus: 19b
• Package Type: SOJ
• Operating Temp Range: -40C to 85C
• Number Of Ports: 1
• Supply Current: 185mA
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 36
• Word Size: 8b
• Number Of Words: 512K
• Lead Free Status / Rohs Status: Not Compliant

Switching Waveforms
Read Cycle No. 1
Read Cycle No. 2 (OE Controlled)
Notes:
Document #: 38-05169 Rev. *A
12. Device is continuously selected. OE, CE = V
13. WE is HIGH for read cycle.
14. Address valid prior to or coincident with CE transition LOW.
Data Retention Waveform
DATA OUT
DATA OUT
ADDRESS
CURRENT
ADDRESS
V
SUPPLY
CE
CC
CE
V
OE
CC
[12, 13]
PREVIOUS DATA VALID
HIGH IMPEDANCE
t
PU
t
LZCE
[13, 14]
t
t
LZOE
ACE
IL
t
CDR
.
3.0V
t
OHA
50%
t
DOE
t
AA
DATA RETENTION MODE
t
RC
V
DR
t
RC
> 2V
DATA VALID
3.0V
t
DATA VALID
t
HZOE
R
t
HZCE
t
PD
50%
CY7C1049B
IMPEDANCE
Page 6 of 10
HIGH
I
I
CC
SB