XM28C020 Datasheet | Xicor Inc.

DESCRIPTION 256K x 8 Bit TYPICAL FEATURES - - - - - - - - - - High Density 2 Megabit (256K x 8) Module Access Time of 150ns at - 55°C to +125°C Base Memory ponent: Xicor X28C513 Pinout conforms to JEDEC Standard for 2 Megabit E2PROM Fast Write Cycle Times - 128 Byte Page Write - Byte or Page Write Cycle: 5ms Typical - plete Memory Rewrite: 10 Seconds Early End of Write Detection - DATA Polling - Toggle Bit Polling Software Data Protection Three Temperature Ranges - mercial: 0°C to +75°C - Industrial: - 40° to +85°C - Military: - 55° to +125°C High Rel Module - 100% MIL-STD-883 pliant ponents Endurance: 100,000 Cycles The XM28C020 is a high density 2 Megabit E2PROM prised of four X28C513 LCCs mounted on a co-fired multilayered ceramic substrate. Individual ponents are 100% tested prior to assembly in module form and then 100% tested after assembly. The XM28C020 is configured 256K x 8 bit. The module supports a 128-byte page write operation. This bined with DATA Polling or Toggle Bit Polling, effectively provides a 39µs/byte write cycle, enabling the entire array to be rewritten in 10 seconds. The XM28C020 provides the same high endurance and data retention as the X28C513. FUNCTIONAL DIAGRAM X28C513 A0- A15 I/O0- I/O7 OE WE CE X28C513 A0- A15 I/O0- I/O7 OE WE CE PIN CONFIGURATION NC A16 A15 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 15 16 XM28C020 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 VCC WE A17 A14 A13 A8 A9 A11 OE A10 CE I/O7 I/O6 I/O5 I/04 I/O3 A0- A15 I/O0- I/O7 OE WE CE A16 A17 X28C513 A0- A15 I/O0- I/O7 OE WE CE X28C513 A0- A15 I/O0- I/O7 OE WE CE 3872 FHD F02 3872 FHD F01 © Xicor, Inc. 1991, 1995, 1996 Patents Pending 3872-1.9 6/18/97 T1/C0/D0 SH Characteristics subject to change without notice PIN DESCRIPTIONS Addresses (A0- A17) The Address inputs select an 8-bit memory location during a read or write operation. Chip Enable (CE) The Chip Enable input must be LOW to enable all read/ write operations....