Page 2 - Pin Configurations
STK11C88 Document Number: 001-50591 Rev. ** Page 2 of 15 Pin Configurations Figure 1. Pin Diagram - 28-Pin SOIC Table 1. Pin Definitions - 28-Pin SOIC Pin Name Alt IO Type Description A 0 –A 14 Input Address Inputs. Used to select one of the 32,768 bytes of the nvSRAM. DQ 0 -DQ 7 Input or Output Bid...
Page 4 - Hardware Protect; Noise Considerations; Low Average Active Power; Figure 2; Best Practices
STK11C88 Document Number: 001-50591 Rev. ** Page 4 of 15 Hardware Protect The STK11C88 offers hardware protection against inadvertentSTORE operation and SRAM WRITEs during low voltage conditions. When V CC <V SWITCH , all externally initiated STORE operations and SRAM WRITEs are inhibited. Noise ...
Page 6 - DC Electrical Characteristics
STK11C88 Document Number: 001-50591 Rev. ** Page 6 of 15 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 7 - Capacitance; Thermal Resistance; AC Test Conditions
STK11C88 Document Number: 001-50591 Rev. ** Page 7 of 15 Capacitance In the following table, the capacitance parameters are listed. [4] Parameter Description Test Conditions Max Unit C IN Input Capacitance T A = 25 ° C, f = 1 MHz, V CC = 0 to 3.0 V 5 pF C OUT Output Capacitance 7 pF Thermal Resistan...
Page 8 - AC Switching Characteristics; SRAM Read Cycle; Switching Waveforms
STK11C88 Document Number: 001-50591 Rev. ** Page 8 of 15 AC Switching Characteristics SRAM Read Cycle Parameter Description 25 ns 45 ns Unit Min Max Min Max Cypress Parameter Alt t ACE t ELQV Chip Enable Access Time 25 45 ns t RC [5] t AVAV, t ELEH Read Cycle Time 25 45 ns t AA [6] t AVQV Address Ac...
Page 9 - SRAM Write Cycle
STK11C88 Document Number: 001-50591 Rev. ** Page 9 of 15 SRAM Write Cycle Parameter Description 25 ns 45 ns Unit Min Max Min Max Cypress Parameter Alt t WC t AVAV Write Cycle Time 25 45 ns t PWE t WLWH, t WLEH Write Pulse Width 20 30 ns t SCE t ELWH, t ELEH Chip Enable To End of Write 20 30 ns t SD ...
Page 10 - STORE INHIBIT or Power Up RECALL; Power up RECALL Duration
STK11C88 Document Number: 001-50591 Rev. ** Page 10 of 15 STORE INHIBIT or Power Up RECALL Parameter Alt Description STK11C88 Unit Min Max t HRECALL [10] t RESTORE Power up RECALL Duration 550 μ s t STORE [6] t HLHZ STORE Cycle Duration 10 ms V RESET Low Voltage Reset Level 3.6 V V SWITCH Low Voltag...
Page 12 - Ordering Information; Commercial; Part Numbering Nomenclature; Lead Finish
STK11C88 Document Number: 001-50591 Rev. ** Page 12 of 15 Ordering Information Speed (ns) Ordering Code Package Diagram Package Type Operating Range 25 STK11C88-NF25TR 51-85026 28-Pin SOIC (300 mil) Commercial STK11C88-NF25 51-85026 28-Pin SOIC (300 mil) STK11C88-SF25TR 51-85058 28-Pin SOIC (330 mil...
Page 13 - Package Diagrams
STK11C88 Document Number: 001-50591 Rev. ** Page 13 of 15 Package Diagrams Figure 11. 28-Pin (300 mil) SOIC (51-85026) 51 85127 *A PIN 1 ID 0.291[7.39] 0.300[7.62] 0.394[10.01] 0.419[10.64] 0.050[1.27] TYP. 0.092[2.33] 0.105[2.67] 0.004[0.10] 0.0118[0.30] SEATING PLANE 0.0091[0.23] 0.0125[3.17] 0.01...
Page 15 - Worldwide Sales and Design Support; Change
Document Number: 001-50591 Rev. ** Revised January 29, 2009 Page 15 of 15 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. STK11C88 © Cypress Semicondu...