CY14B256L-SP35XI Cypress Semiconductor Corp, CY14B256L-SP35XI Datasheet - Page 11
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CY14B256L-SP35XI
Manufacturer Part Number
CY14B256L-SP35XI
Description
IC NVSRAM 256KBIT 35NS 48SSOP
Manufacturer
Cypress Semiconductor Corp
Type
NVSRAMr
Specifications of CY14B256L-SP35XI
Format - Memory
RAM
Memory Type
NVSRAM (Non-Volatile SRAM)
Memory Size
256K (32K x 8)
Speed
35ns
Interface
Parallel
Voltage - Supply
2.7 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Package / Case
48-SSOP
Word Size
8b
Organization
32Kx8
Density
256Kb
Interface Type
Parallel
Access Time (max)
35ns
Operating Supply Voltage (typ)
3.3V
Package Type
SSOP
Operating Temperature Classification
Industrial
Operating Supply Voltage (max)
3.6V
Operating Supply Voltage (min)
2.7V
Operating Temp Range
-40C to 85C
Pin Count
48
Mounting
Surface Mount
Supply Current
60mA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CY14B256L-SP35XI
Manufacturer:
CYPRESS/赛普拉斯
Quantity:
20 000
Switching Waveforms
Notes
Document Number: 001-06422 Rev. *I
SRAM Write Cycle
t
t
t
t
t
t
t
t
t
t
10. If WE is Low when CE goes Low, the outputs remain in the high impedance state.
11. CE or WE must be greater than V
WC
PWE
SCE
SD
HD
AW
SA
HA
HZWE
LZWE
Parameter
Cypress
[8]
[8,10]
ADDRESS
DATA OUT
ADDRESS
DATA OUT
DATA IN
DATA IN
Parameter
WE
CE
CE
WE
t
t
t
t
t
t
t
t
t
t
AVAV
WLWH,
ELWH,
DVWH,
WHDX,
AVWH,
AVWL,
WHAX,
WLQZ
WHQX
t
t
t
t
t
t
t
ELEH
AVEL
AVEH
EHAX
WLEH
DVEH
EHDX
Alt
IH
during address transitions.
PREVIOUS DATA
Write Cycle Time
Write Pulse Width
Chip Enable To End of Write
Data Setup to End of Write
Data Hold After End of Write
Address Setup to End of Write
Address Setup to Start of Write
Address Hold After End of Write
Write Enable to Output Disable
Output Active After End of Write
t
SA
Figure 7. SRAM Write Cycle 1: WE Controlled
Figure 8. SRAM Write Cycle 2: CE Controlled
t
SA
Description
HIGH IMPEDANCE
t
t
AW
t
PWE
AW
t
HZWE
t
t
t
SCE
SCE
WC
t
WC
t
t
HIGH IMPEDANCE
PWE
SD
DATA VALID
DATA VALID
Min
t
20
25
20
10
20
SD
0
0
0
3
25 ns
Max
10
[10, 11]
[10, 11]
t
HA
t
t
t
HD
HA
HD
Min
35
25
25
12
25
0
0
0
3
35 ns
t
LZWE
Max
13
Min
45
30
30
15
30
0
0
0
3
CY14B256L
45 ns
Page 11 of 19
Max
15
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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