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[Honeywell]

GENERAL DESCRIPTION

The 32K x 8 Radiation Hardened ROM is a high perform ance 32,768 word x 8-bit read only memory with industry standard functionality. It is fabricated with Honeywell’s radiation hardened technology, and is designed for use in systems operating in radiation environments. The ROM

operates over the full military temperature range and requires only a single 5 V ±10 power supply. The ROM is available with either TTL or CMOS compatible I/O. Power consumption is typically less than 15 mW/MHz in operation, and less than 5 mW when de-selected. The ROM operation is fully asynchronous, with an associated typical access time of 14 ns.

FEATURES

RADIATION

• Fabricated with RICMOS™ IV Silicon on Insulator (SOI) 0.75 µm Process (Leff = 0.6 µm)

• Total Dose Hardness through 1x10 6rad(SiO2)

• Dynamic and Static Transient Upset Hardness through 1x109 rad(Si)/s

• Dose Rate Survivability through 1x1011 rad(Si)/s

• Neutron Hardness through 1x1014cm-2

• SEU Immune

• Latchup Free

OTHER

• Read Cycle Times

< 17 ns (Typical)

≤25 ns (-55 to 125°C)

• Typical Operating Power <15 mW/MHz

• Asynchronous Operation

• CMOS or TTL Compatible I/O

• Single 5 V ±10 Power Supply

• Packaging Options

- 28-Lead Flat Pack (0.500 in. x 0.720 in.)

- 28-Lead DIP, MIL-STD-1835, CDIP2-T28

- 36-Lead Flat Pack (0.630 in. x 0.650 in.)