CY14E256L-SZ45XI Cypress Semiconductor Corp, CY14E256L-SZ45XI Datasheet - Page 2

• Manufacturer Part Number: CY14E256L-SZ45XI
• Description: CY14E256L-SZ45XI
• Manufacturer: Cypress Semiconductor Corp
• Type: NVSRAMr

Specifications of CY14E256L-SZ45XI

• Format - Memory: RAM
• Memory Type: NVSRAM (Non-Volatile SRAM)
• Memory Size: 256K (32K x 8)
• Speed: 45ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-SOIC (7.5mm Width)
• Word Size: 8b
• Organization: 32Kx8
• Density: 256Kb
• Interface Type: Parallel
• Access Time (max): 45ns
• Operating Supply Voltage (typ): 5V
• Package Type: SOIC
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Operating Temp Range: -40C to 85C
• Pin Count: 32
• Mounting: Surface Mount
• Supply Current: 70mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Contents
Features .................................................................................1
Functional Description .........................................................1
Logic Block Diagram ............................................................1
Contents ................................................................................2
Pin Configurations ...............................................................3
Device Operation ..................................................................4
SRAM Read ...........................................................................4
SRAM Write ...........................................................................4
AutoStore Operation ............................................................4
AutoStore Inhibit mode ........................................................4
Hardware STORE (HSB) Operation .....................................5
Hardware RECALL (Power Up) ............................................5
Software STORE ...................................................................5
Software RECALL .................................................................5
Data Protection .....................................................................6
Noise Considerations ...........................................................6
Hardware Protect ..................................................................6
Low Average Active Power ..................................................6
Preventing Store ...................................................................6
Document Number: 001-06968 Rev. *H
Best Practices .......................................................................7
Maximum Ratings .................................................................8
Operating Range ...................................................................8
DC Electrical Characteristics ..............................................8
Data Retention and Endurance ...........................................9
Capacitance ..........................................................................9
Thermal Resistance ..............................................................9
AC Test Conditions ..............................................................9
AutoStore or Power Up RECALL .......................................12
Software Controlled STORE/RECALL Cycle .....................13
Switching Waveforms .........................................................14
Part Numbering Nomenclature
(Commercial and Industrial) ...............................................15
Ordering Information ...........................................................15
Document History Page ......................................................18
Sales, Solutions, and Legal Information ...........................19
SRAM Read Cycle .........................................................10
SRAM Write Cycle ..........................................................11
Worldwide Sales and Design Support ............................19
Products .........................................................................19
CY14E256L
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