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STK14C88-3NF55I 数据表(PDF) 1 Page - List of Unclassifed Manufacturers |
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STK14C88-3NF55I 数据表(HTML) 1 Page - List of Unclassifed Manufacturers |
1 / 13 page November 2003 1 Document Control # ML0015 rev 0.3 PIN CONFIGURATIONS 32 - DIP 32 - SOIC 48 - SSOP 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 (not to scale) PIN NAMES A0 - A14 DQ0 -DQ7 E W G HSB VCCX VCAP VSS Address Inputs Data In/Out Chip Enable Write Enable Output Enable Hardware Store Busy (I/O) Power (+ 3.3V) Capacitor Ground STK14C88-3 32K x 8 AutoStore™nvSRAM QuantumTrap™ CMOS Nonvolatile Static RAM FEATURES • 35ns, 45ns and 55ns Access Times • “Hands-off” Automatic STORE with External 68 µF Capacitor on Power Down • STORE to nonvolatile elements Initiated by Hardware, Software or AutoStore™ • RECALL to SRAM Initiated by Software or Power Restore • 10mA Typical I CC at 200ns Cycle Time • Unlimited READ, WRITE and RECALL Cycles • 1,000,000 STORE Cycles to nonvolatile ele- ments (Commercial/Industrial) • 100-Year Data Retention in nonvolatile ele- ments (Commercial/Industrial) • Single 3.3V + 0.3V Operation • Commercial and Industrial Temperatures • 32-Pin SOIC and DIP Packages DESCRIPTION The Simtek STK14C88-3 is a fast static RAM with a nonvolatile element incorporated in each static memory cell. The SRAM can be read and written an unlimited number of times, while independent, non- volatile data resides in nonvolatile elements. Data transfers from the SRAM to the nonvolatile elements (the STORE operation) can take place automatically on power down. A 68 µF or larger capacitor tied from V CAP to ground guarantees the STORE operation, regardless of power-down slew rate or loss of power from “hot swapping”. Transfers from the nonvolatile elements to the SRAM (the RECALL operation) take place automatically on restoration of power. Initia- tion of STORE and RECALL cycles can also be soft- ware controlled by entering specific read sequences. A hardware STORE may be initiated with the HSB pin. BLOCK DIAGRAM A0 A1 A2 A3 A4 A10 COLUMN I/O COLUMN DEC STATIC RAM ARRAY 512 x 512 Quantum Trap 512 x 512 STORE/ RECALL CONTROL STORE RECALL POWER CONTROL A5 A6 A7 A8 A9 A11 A12 A13 A14 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 SOFTWARE DETECT G E W HSB VCCX VCAP A0 - A13 |
类似零件编号 - STK14C88-3NF55I |
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类似说明 - STK14C88-3NF55I |
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