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X28HC64TI-90 Datasheet(PDF) 1 Page - Xicor Inc. |
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X28HC64TI-90 Datasheet(HTML) 1 Page - Xicor Inc. |
1 / 24 page X28HC64 1 64K X28HC64 8K x 8 Bit 5 Volt, Byte Alterable E2PROM © Xicor, Inc. 1994, 1995, 1996 Patents Pending Characteristics subject to change without notice 3857-3.0 8/5/97 T1/C0/D0 EW FEATURES • 55ns Access Time • Simple Byte and Page Write —Single 5V Supply —No External High Voltages or VPP Control Circuits —Self-Timed —No Erase Before Write —No Complex Programming Algorithms —No Overerase Problem • Low Power CMOS —40 mA Active Current Max. —200 µA Standby Current Max. • Fast Write Cycle Times —64 Byte Page Write Operation —Byte or Page Write Cycle: 2ms Typical —Complete Memory Rewrite: 0.25 sec. Typical —Effective Byte Write Cycle Time: 32 µs Typical • Software Data Protection • End of Write Detection — DATA Polling —Toggle Bit PIN CONFIGURATIONS 3857 FHD F03 A6 A5 A4 A3 A2 A1 A0 NC I/O0 A8 A9 A11 NC OE A10 CE I/O7 I/O6 4321 32 31 30 14 15 16 17 18 19 20 5 6 7 8 9 10 11 12 13 29 28 27 26 25 24 23 22 21 X28HC64 LCC PLCC 3857 ILL F22 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 X28HC64 A3 A4 A5 A6 A7 A12 NC NC VCC NC WE NC A8 A9 A11 OE 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 A2 A1 A0 I/O0 I/O1 I/O2 NC VSS NC I/O3 I/O4 I/O5 I/O6 I/O7 CE A10 TSOP 3857 FHD F02.1 NC A12 A7 A6 A5 A4 A3 A2 A1 A0 I/O0 I/O1 I/O2 VSS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 VCC WE NC A8 A9 A11 OE A10 CE I/O7 I/O6 I/O5 I/04 I/O3 X28HC64 PLASTIC DIP FLAT PACK CERDIP SOIC • High Reliability —Endurance: 100,000 Cycles —Data Retention: 100 Years • JEDEC Approved Byte-Wide Pinout DESCRIPTION The X28HC64 is an 8K x 8 E2PROM, fabricated with Xicor’s proprietary, high performance, floating gate CMOS technology. Like all Xicor programmable non- volatile memories the X28HC64 is a 5V only device. The X28HC64 features the JEDEC approved pinout for byte- wide memories, compatible with industry standard RAMs. The X28HC64 supports a 64-byte page write operation, effectively providing a 32 µs/byte write cycle and en- abling the entire memory to be typically written in 0.25 seconds. The X28HC64 also features DATA Polling and Toggle Bit Polling, two methods providing early end of write detection. In addition, the X28HC64 includes a user-optional software data protection mode that further enhances Xicor’s hardware write protect capability. Xicor E2PROMs are designed and tested for applica- tions requiring extended endurance. Inherent data re- tention is greater than 100 years. PGA X28HC64 11 I/O0 10 A0 14 VSS 9 A1 8 A2 7 A3 6 A4 5 A5 2 A12 28 VCC 12 I/O1 13 I/O2 15 I/O3 4 A6 3 A7 1 NC 16 I/O4 20 CE 22 OE 24 A9 17 I/O5 27 WE 19 I/O7 21 A10 23 A11 25 A8 18 I/O6 26 NC BOTTOM VIEW 3857 FHD F04 |
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