XM28C040 Datasheet | Xicor Inc.

DESCRIPTION 512K x 8 Bit TYPICAL FEATURES - - - - - - - - - - High Density 4 Megabit (512K x 8) Module Access Time of 200ns at - 55°C to +125°C Base Memory ponent: Xicor X28C010 Pinout Conforms to JEDEC Standard for 4 Megabit E2PROM Fast Write Cycle Times - 256 Byte Page Write 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 Modules all ponents are MIL-STD-883 pliant Endurance: 100,000 Cycles The XM28C040 is a high density 4 Megabit E2PROM prised of four X28C010's 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 XM28C040 is configured 512K x 8 bit. The module supports a 256-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 XM28C040 provides the same high endurance and data retention as the X28C010. FUNCTIONAL DIAGRAM X28C010 A0- A16 I/O0- I/O7 OE WE CE X28C010 A0- A16 I/O0- I/O7 OE WE CE PIN CONFIGURATION A18 A16 A15 A12 A7 A6 A5 A4 A3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 XM28C040 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- A16 I/O0- I/O7 OE WE CE A18 A17 X28C010 A0- A16 I/O0- I/O7 OE WE CE X28C010 A0- A16 I/O0- I/O7 OE WE CE A2 A1 A0 I/O0 I/O1 I/O2 VSS 3873 FHD F02 3873 FHD F01 © Xicor, Inc. 1991-1997 Patents Pending 3873-1.7 6/13/97 T1/C0/D0 SH Characteristics subject to change without notice PIN DESCRIPTIONS Addresses (A0- A18) 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. When CE is HIGH, power consumption is reduced (see Note 4). Output Enable (OE)...