CY14E256LA-SZ25XI Cypress Semiconductor Corp, CY14E256LA-SZ25XI Datasheet - Page 2

• Manufacturer Part Number: CY14E256LA-SZ25XI
• Description: IC NVSRAM 256KBIT 25NS 32SOIC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY14E256LA-SZ25XI

• Memory Size: 256K (32K x 8)
• Package / Case: *
• Format - Memory: RAM
• Memory Type: NVSRAM (Non-Volatile SRAM)
• Speed: 25ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Organization: 32 K x 8
• Access Time: 25 ns
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 2.7 V
• Operating Current: 70 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Contents
256 Kbit (32K x 8) nvSRAM .............................................. 1
Features............................................................................. 1
Functional Description..................................................... 1
Contents ............................................................................ 2
Pinouts .............................................................................. 3
Device Operation .............................................................. 4
SRAM Read ....................................................................... 4
SRAM Write ....................................................................... 4
AutoStore Operation ........................................................ 4
Hardware STORE Operation............................................ 4
Hardware RECALL (Power Up)........................................ 5
Software STORE ............................................................... 5
Software RECALL............................................................. 5
Preventing AutoStore....................................................... 6
Data Protection ................................................................. 6
Noise Considerations....................................................... 6
Best Practices................................................................... 7
Maximum Ratings............................................................. 8
Operating Range............................................................... 8
DC Electrical Characteristics .......................................... 8
Document Number: 001-54952 Rev. *D
Data Retention and Endurance ....................................... 9
Capacitance ...................................................................... 9
Thermal Resistance.......................................................... 9
AC Test Conditions .......................................................... 9
AC Switching Characteristics ....................................... 10
AutoStore/Power Up RECALL ....................................... 12
Software Controlled STORE/RECALL Cycle................ 13
Hardware STORE Cycle ................................................. 14
Truth Table For SRAM Operations................................ 15
Part Numbering Nomenclature...................................... 15
Ordering Information...................................................... 16
Package Diagram............................................................ 16
Document History Page ................................................. 18
Sales, Solutions, and Legal Information ...................... 18
SRAM Read Cycle .................................................... 10
SRAM Write Cycle..................................................... 10
Worldwide Sales and Design Support....................... 18
Products .................................................................... 18
PSoC Solutions ......................................................... 18
CY14E256LA
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