CY14B256L-SP45XI Cypress Semiconductor Corp, CY14B256L-SP45XI Datasheet - Page 12
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CY14B256L-SP45XI
Manufacturer Part Number
CY14B256L-SP45XI
Description
IC NVSRAM 256KBIT 45NS 48SSOP
Manufacturer
Cypress Semiconductor Corp
Type
NVSRAMr
Specifications of CY14B256L-SP45XI
Format - Memory
RAM
Memory Type
NVSRAM (Non-Volatile SRAM)
Memory Size
256K (32K x 8)
Speed
45ns
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)
45ns
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
55mA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
AutoStore or Power Up RECALL
Switching Waveforms
Notes
Document Number: 001-06422 Rev. *I
t
t
V
t
12. t
13. If an SRAM WRITE has not taken place since the last nonvolatile cycle, no STORE will take place.
14. Industrial grade devices requires 15 ms max.
HRECALL
STORE
VCCRISE
Note Read and Write cycles are ignored during STORE, RECALL, and while Vcc is below V
SWITCH
Read & Write Inhibited
POWER-UP RECALL
HRECALL
Parameter
[13, 14]
AutoStore
[12]
V
starts from the time V
SWITCH
V
CC
t
t
RESTORE
HLHZ
t
VCCRISE
CC
Alt
rises above V
t
HRECALL
Power up RECALL Duration
STORE Cycle Duration
Low Voltage Trigger Level
V
SWITCH
CC
Figure 9. AutoStore/Power Up RECALL
Rise Time
.
Description
t
STORE
SWITCH
t
HRECALL
STORE occurs only
if a SRAM write
has happened
Min
150
CY14B256L
t
STORE
Max
12.5
2.65
20
No STORE occurs
without atleast one
SRAM write
CY14B256L
Page 12 of 19
Unit
ms
ms
μs
V
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