Cypress STK14C88-5 - Manuals

Page 3 - Figure 3; AutoStore Inhibit mode; Figure 4; Figure 3. AutoStore Mode

STK14C88-5 Document Number: 001-51038 Rev. ** Page 3 of 17 Device Operation The STK14C88-5 nvSRAM is made up of two functional compo-nents paired in the same physical cell. These are an SRAMmemory cell and a nonvolatile QuantumTrap cell. The SRAMmemory cell operates as a standard fast static RAM. Da...

Page 4 - Figure 4. AutoStore Inhibit Mode

STK14C88-5 Document Number: 001-51038 Rev. ** Page 4 of 17 Hardware STORE (HSB) Operation The STK14C88-5 provides the HSB pin for controlling andacknowledging the STORE operations. The HSB pin is used torequest a hardware STORE cycle. When the HSB pin is drivenLOW, the STK14C88-5 conditionally initi...

Page 5 - STORE; Low Average Active Power; Figure 5; Preventing Store

STK14C88-5 Document Number: 001-51038 Rev. ** Page 5 of 17 Data Protection The STK14C88-5 protects data from corruption during lowvoltage conditions by inhibiting all externally initiated STOREand WRITE operations. The low voltage condition is detectedwhen V CC is less than V SWITCH . If the STK14C8...

Page 6 - Best Practices

STK14C88-5 Document Number: 001-51038 Rev. ** Page 6 of 17 Best Practices nvSRAM products have been used effectively for over 15 years.While ease of use is one of the product’s main system values,experience gained working with hundreds of applications hasresulted in the following suggestions as best...

Page 7 - DC Electrical Characteristics

STK14C88-5 Document Number: 001-51038 Rev. ** Page 7 of 17 Maximum Ratings Exceeding maximum ratings may shorten the useful life of thedevice. These user guidelines are not tested. Storage Temperature ................................. –65 ° C to +150 ° C Temperature under Bias .........................

Page 8 - Capacitance; Thermal Resistance; AC Test Conditions; Output

STK14C88-5 Document Number: 001-51038 Rev. ** Page 8 of 17 Capacitance In the following table, the capacitance parameters are listed. [8] Parameter Description Test Conditions Max Unit C IN Input Capacitance T A = 25 ° C, f = 1 MHz, V CC = 0 to 3.0V 5 pF C OUT Output Capacitance 7 pF Thermal Resista...

Page 9 - AC Switching Characteristics; SRAM Read Cycle; Switching Waveforms

STK14C88-5 Document Number: 001-51038 Rev. ** Page 9 of 17 AC Switching Characteristics SRAM Read Cycle Parameter Description 35 ns 45 ns Unit Min Max Min Max Cypress Parameter Alt t ACE t ELQV Chip Enable Access Time 35 45 ns t RC [9] t AVAV, t ELEH Read Cycle Time 35 45 ns t AA [10] t AVQV Address...

Page 10 - SRAM Write Cycle

STK14C88-5 Document Number: 001-51038 Rev. ** Page 10 of 17 SRAM Write Cycle Parameter Description 35 ns 45 ns Unit Min Max Min Max Cypress Parameter Alt t WC t AVAV Write Cycle Time 35 45 ns t PWE t WLWH, t WLEH Write Pulse Width 25 30 ns t SCE t ELWH, t ELEH Chip Enable To End of Write 25 30 ns t ...

Page 13 - Hardware STORE Cycle

STK14C88-5 Document Number: 001-51038 Rev. ** Page 13 of 17 Hardware STORE Cycle Parameter Alt Description STK14C88-5 Unit Min Max t DHSB [16, 20] t RECOVER, t HHQX Hardware STORE High to Inhibit Off 700 ns t PHSB t HLHX Hardware STORE Pulse Width 15 ns t HLBL Hardware STORE Low to STORE Busy 300 ns...

Page 14 - Ordering Information; Military; Part Numbering Nomenclature; Retention / Endurance

STK14C88-5 Document Number: 001-51038 Rev. ** Page 14 of 17 Ordering Information Speed (ns) Ordering Code Package Diagram Package Type Operating Range 35 STK14C88-5C35M 001-51694 32-pin CDIP (300 mil) Military STK14C88-5K35M 001-51694 32-pin CDIP (300 mil) STK14C88-5L35M 51-80068 32-pin LCC (450 mil...

Page 15 - Package Diagram

STK14C88-5 Document Number: 001-51038 Rev. ** Page 15 of 17 Package Diagram Figure 15. 32-Pin (300-Mil) Side Braze DIL (001-51694) 001-51694 ** [+] Feedback

Page 17 - Document History Page; Worldwide Sales and Design Support; Rev

Document Number: 001-51038 Rev. ** Revised March 02, 2009 Page 17 of 17 AutoStore and QuantumTrap are registered trademarks of Cypress Semiconductor Corporation. All products and company names mentioned in this document may be the trademarks of their respectiveholders. STK14C88-5 © Cypress Semicondu...