STK16C88-WF45 Cypress Semiconductor Corp, STK16C88-WF45 Datasheet - Page 2

• Manufacturer Part Number: STK16C88-WF45
• Description: IC NVSRAM 256KBIT 45NS 28DIP
• Manufacturer: Cypress Semiconductor Corp
• Series: -r

Specifications of STK16C88-WF45

• Memory Size: 256K (32K x 8)
• Package / Case: 28-DIP (0.600", 15.24mm)
• Format - Memory: RAM
• Memory Type: NVSRAM (Non-Volatile SRAM)
• Speed: 45ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Data Bus Width: 8 bit
• Organization: 32 K x 8
• Interface Type: Parallel
• Access Time: 45 ns
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Operating Current: 70 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: Through Hole
• Memory Configuration: 32K X 8
• Supply Voltage Range: 4.5V To 5.5V
• Memory Case Style: DIP
• No. Of Pins: 28
• Operating Temperature Range: 0°C To +70°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-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
Hardware RECALL (Power Up)........................................... 4
Software STORE .................................................................. 4
Software RECALL................................................................ 4
Hardware Protect................................................................. 5
Noise Considerations.......................................................... 5
Low Average Active Power................................................. 5
Best Practices...................................................................... 5
Maximum Ratings................................................................ 7
Document Number: 001-50595 Rev. *B
DC Electrical Characteristics ............................................. 7
Data Retention and Endurance .......................................... 7
Capacitance ......................................................................... 8
Thermal Resistance............................................................. 8
AC Test Conditions ............................................................. 8
AC Switching Characteristics ............................................ 9
Switching Waveforms ......................................................... 9
AutoStore or Power Up RECALL ..................................... 11
Software Controlled STORE/RECALL Cycle................... 12
Part Numbering Nomenclature
(Commercial and Industrial) ............................................. 13
Ordering Information......................................................... 13
Package Diagrams............................................................. 14
Sales, Solutions and Legal Information .......................... 15
Worldwide Sales and Design Support .......................... 15
Products ....................................................................... 15
STK16C88
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