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STK12C68-SF25 数据表(PDF) 3 Page - Cypress Semiconductor |
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STK12C68-SF25 数据表(HTML) 3 Page - Cypress Semiconductor |
3 / 24 page STK12C68 Document Number: 001-51027 Rev. *C Page 3 of 24 Pin Configurations Pin Definitions Pin Name Alt I/O Type Description A0–A12 Input Address Inputs. Used to select one of the 8,192 bytes of the nvSRAM. DQ0-DQ7 Input or Output Bidirectional Data I/O Lines. Used as input or output lines depending on operation. WE W Input Write Enable Input, Active LOW. When the chip is enabled and WE is LOW, data on the I/O pins is written to the specific address location. CE E Input Chip Enable Input, Active LOW. When LOW, selects the chip. When HIGH, deselects the chip. OE G Input Output Enable, Active LOW. The active LOW OE input enables the data output buffers during read cycles. Deasserting OE HIGH causes the I/O pins to tristate. VSS Ground Ground for the Device. The device is connected to ground of the system. VCC Power Supply Power Supply Inputs to the Device. HSB Input or Output Hardware Store Busy (HSB). When LOW, this output indicates a Hardware Store is in progress. When pulled low external to the chip, it initiates a nonvolatile STORE operation. A weak internal 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 elements. Figure 1. 28-Pin SOIC/DIP and LLC [+] Feedback |
类似零件编号 - STK12C68-SF25 |
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类似说明 - STK12C68-SF25 |
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