CY14B256L-SZ45XI Cypress Semiconductor Corp, CY14B256L-SZ45XI Datasheet - Page 12

• Manufacturer Part Number: CY14B256L-SZ45XI
• Description: IC NVSRAM 256KBIT 45NS 32SOIC
• Manufacturer: Cypress Semiconductor Corp
• Type: NVSRAMr

Specifications of CY14B256L-SZ45XI

• Memory Size: 256K (32K x 8)
• Package / Case: 32-SOIC (7.5mm Width)
• Format - Memory: RAM
• Memory Type: NVSRAM (Non-Volatile SRAM)
• Speed: 45ns
• Interface: Parallel
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Access Time: 45ns
• Supply Voltage Range: 2.7V To 3.6V
• Memory Case Style: SOIC
• No. Of Pins: 32
• Operating Temperature Range: -40°C To +85°C
• Memory Configuration: 32K X 8
• Interface Type: Parallel
• Rohs Compliant: Yes
• Word Size: 8b
• Organization: 32Kx8
• Density: 256Kb
• Access Time (max): 45ns
• Operating Supply Voltage (typ): 3.3V
• Package Type: SOIC
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 2.7V
• Operating Temp Range: -40C to 85C
• Pin Count: 32
• Mounting: Surface Mount
• Supply Current: 55mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, 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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