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STK14C88-NF25TR 数据表(PDF) 2 Page - Simtek Corporation |
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STK14C88-NF25TR 数据表(HTML) 2 Page - Simtek Corporation |
2 / 19 page 2 February, 2007 Document Control #ML0014 Rev 0.3 STK14C88 PIN CONFIGURATIONS PIN DESCRIPTIONS Pin Name I/O Description A14-A0 Input Address: The 15 address inputs select one of 32,768 bytes in the nvSRAM array DQ7-DQ0 I/O Data: Bi-directional 8-bit data bus for accessing the nvSRAM E Input Chip Enable: The active low E input selects the device W Input Write Enable: The active low W enables data on the DQ pins to be written to the address location latched by the falling edge of E G Input Output Enable: The active low G input enables the data output buffers during read cycles. De-asserting G high caused the DQ pins to tri-state. VCCX Power Supply Power: 5.0V, ± 10% HSB I/O Hardware Store Busy: When low this output indicates a Store is in progress. When pulled low external to the chip, it will initiate a nonvolatile STORE operation. A weak pull up resistor keeps this pin high if not connected. (Connection Optional). VCAP Power Supply AutoStore Capacitor: Supplies power to nvSRAM during power loss to store data from SRAM to nonvolatile storage elements. VSS Power Supply Ground VCAP A14 A12 A7 A6 A5 A4 A3 NC A2 A1 A0 DQ0 DQ1 DQ2 VSS VCCX HSB A13 A8 A9 A11 G NC A10 E DQ7 DQ6 DQ5 DQ4 DQ3 W 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 32-Pin 300 mil SOIC 32-Pin 300 mil CDIP 32-Pin 450 mil LCC |
类似零件编号 - STK14C88-NF25TR |
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类似说明 - STK14C88-NF25TR |
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