Datasheet STK14C88C (Infineon) - 6

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STK14C88C Table 1. Mode Selection CE WE OE A
[1]
14–A0 Mode I/O Power
H X X X Not selected Output high Z Standby L H L X Read SRAM Output data Active L L X X Write SRAM Input data Active L H L 0x0E38 Read SRAM Output data Output Active[2] 0x31C7 Read SRAM data Output data 0x03E0 Read SRAM Output data Output 0x3C1F Read SRAM data Output data 0x303F Read SRAM 0x0B45 AutoStore disable L H L 0x0E38 Read SRAM Output data Output Active[2] 0x31C7 Read SRAM data Output data 0x03E0 Read SRAM Output data Output 0x3C1F Read SRAM data Output data 0x303F Read SRAM 0x0B46 AutoStore enable L H L 0x0E38 Read SRAM Output data Output Active I [2] CC2 0x31C7 Read SRAM data Output data 0x03E0 Read SRAM Output data Output 0x3C1F Read SRAM data Output high Z 0x303F Read SRAM 0x0FC0 Nonvolatile STORE L H L 0x0E38 Read SRAM Output data Output Active[2] 0x31C7 Read SRAM data Output data 0x03E0 Read SRAM Output data Output 0x3C1F Read SRAM data Output high Z 0x303F Read SRAM 0x0C63 Nonvolatile RECALL
Notes
1. While there are 15 address lines on the STK14C88C, only the lower 14 are used to control software modes. 2. The six consecutive address locations must be in the order listed. WE must be HIGH during all six cycles to enable a nonvolatile cycle. Document Number: 002-23965 Rev. *A Page 6 of 21 Document Outline 256-Kbit (32K × 8) nvSRAM Features Functional Description Logic Block Diagram Contents Pinout Pin Definitions Device Operation SRAM Read SRAM Write AutoStore Operation Hardware STORE Operation Hardware RECALL (Power-up) Software STORE Software RECALL Preventing AutoStore Data Protection Maximum Ratings Operating Range DC Electrical Characteristics Data Retention and Endurance Capacitance Thermal Resistance AC Test Loads AC Test Conditions AC Switching Characteristics SRAM Read Cycle SRAM Write Cycle Switching Waveforms AutoStore/Power-up RECALL Switching Waveforms Software Controlled STORE/RECALL Cycle Switching Waveforms Hardware STORE Cycle Switching Waveforms Truth Table For SRAM Operations Ordering Information Ordering Code Definitions for Industrial Temperature Ordering Code Definitions for Military Temperature Package Diagram Acronyms Document Conventions Units of Measure Document History Page Sales, Solutions, and Legal Information Worldwide Sales and Design Support Products PSoC® Solutions Cypress Developer Community Technical Support