CY14B256LA-SP45XI Cypress Semiconductor Corp, CY14B256LA-SP45XI Datasheet - Page 2

• Manufacturer Part Number: CY14B256LA-SP45XI
• Description: CY14B256LA-SP45XI
• Manufacturer: Cypress Semiconductor Corp
• Type: NVSRAMr

Specifications of CY14B256LA-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: *
• Word Size: 8b
• Organization: 32Kx8
• Density: 256Kb
• Interface Type: Parallel
• Access Time (max): 45ns
• 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: 52mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Contents
Pinouts .............................................................................. 3
Device Operation .............................................................. 5
SRAM Read ....................................................................... 5
SRAM Write ....................................................................... 5
AutoStore Operation ........................................................ 5
Hardware STORE Operation ............................................ 5
Hardware RECALL (Power-Up) ....................................... 6
Software STORE ............................................................... 6
Software RECALL ............................................................. 6
Preventing AutoStore ....................................................... 7
Data Protection ................................................................. 7
Noise Considerations ....................................................... 7
Best Practices ................................................................... 8
Maximum Ratings ............................................................. 9
Operating Range ............................................................... 9
DC Electrical Characteristics .......................................... 9
AC Test Conditions ........................................................ 10
Data Retention and Endurance ..................................... 10
Capacitance .................................................................... 10
Document Number: 001-54707 Rev. *F
Thermal Resistance ........................................................ 10
AC Switching Characteristics ....................................... 11
AutoStore/Power-Up RECALL ....................................... 13
Software Controlled STORE/RECALL Cycle ................ 14
Hardware STORE Cycle ................................................. 15
Truth Table For SRAM Operations ................................ 16
Ordering Information ...................................................... 16
Package Diagrams .......................................................... 17
Acronyms ........................................................................ 20
Document Conventions ................................................. 20
Document History Page ................................................. 21
Sales, Solutions, and Legal Information ...................... 22
Ordering Code Definition ........................................... 16
Units of Measure ....................................................... 20
Worldwide Sales and Design Support ....................... 22
Products .................................................................... 22
PSoC Solutions ......................................................... 22
CY14B256LA
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