Cypress STK14C88-3 - Manuals

Page 2 - Pin Configurations

STK14C88-3 Document Number: 001-50592 Rev. ** Page 2 of 17 Pin Configurations Figure 1. Pin Diagram - 32-Pin SOIC/32-Pin PDIP Table 1. Pin Definitions - 32-Pin SOIC/32-Pin PDIP 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...

Page 3 - Figure 2. AutoStore Mode

STK14C88-3 Document Number: 001-50592 Rev. ** Page 3 of 17 Device Operation The STK14C88-3 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 - Software STORE; Figure 3. AutoStore Inhibit Mode

STK14C88-3 Document Number: 001-50592 Rev. ** Page 4 of 17 Hardware STORE (HSB) Operation The STK14C88-3 provides the HSB pin for controlling andacknowledging the STORE operations. The HSB pin is usedto request a hardware STORE cycle. When the HSB pin isdriven LOW, the STK14C88-3 conditionally initi...

Page 5 - STORE; Noise Considerations; Figure 4

STK14C88-3 Document Number: 001-50592 Rev. ** Page 5 of 17 Software RECALL Data is transferred from the nonvolatile memory to the SRAM bya software address sequence. A software RECALL cycle isinitiated with a sequence of READ operations in a manner similarto the software STORE initiation. To initiat...

Page 6 - Best Practices

STK14C88-3 Document Number: 001-50592 Rev. ** Page 6 of 17 Best Practices nvSRAM products have been used effectively for over 15years. While ease-of-use is one of the product’s main systemvalues, experience gained working with hundreds of applica-tions has resulted in the following suggestions as be...

Page 7 - DC Electrical Characteristics

STK14C88-3 Document Number: 001-50592 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 - Thermal Resistance; AC Test Conditions

STK14C88-3 Document Number: 001-50592 Rev. ** Page 8 of 17 Data Retention and Endurance Parameter Description Min Unit DATA R Data Retention 100 Years NV C Nonvolatile STORE Operations 1,000 K Capacitance In the following table, the capacitance parameters are listed. [8] Parameter Description Test C...

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

STK14C88-3 Document Number: 001-50592 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 13 - Hardware STORE Cycle

STK14C88-3 Document Number: 001-50592 Rev. ** Page 13 of 17 Hardware STORE Cycle Parameter Alt Description STK14C88-3 Unit Min Max t PHSB t HLHX Hardware STORE Pulse Width 15 ns t DHSB [16, 20] t RECOVER, t HHQX Hardware STORE High to Inhibit Off 700 ns t HLBL Hardware STORE Low to STORE Busy 300 ns...

Page 14 - Ordering Information; Commercial; Part Numbering Nomenclature; Lead Finish

STK14C88-3 Document Number: 001-50592 Rev. ** Page 14 of 17 Ordering Information Speed (ns) Ordering Code Package Diagram Package Type Operating Range 35 STK14C88-3NF35TR 51-85127 32-pin SOIC Commercial STK14C88-3NF35 51-85127 32-pin SOIC STK14C88-3WF35 51-85018 32-pin PDIP STK14C88-3NF35ITR 51-8512...

Page 15 - Package Diagrams; PIN 1 ID; REFERENCE JEDEC MO-119

STK14C88-3 Document Number: 001-50592 Rev. ** Page 15 of 17 Package Diagrams Figure 14. 32-Pin (300 Mil) SOIC (51-85127) 51-85058 *A PIN 1 ID SEATING PLANE 1 16 17 32 DIMENSIONS IN INCHES[MM] MIN.MAX. 0.292[7.416]0.299[7.594] 0.405[10.287]0.419[10.642] 0.050[1.270] TYP. 0.090[2.286]0.100[2.540] 0.00...

Page 17 - Worldwide Sales and Design Support; Change

Document Number: 001-50592 Rev. ** Revised January 29, 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. STK14C88-3 © Cypress Semicon...