Description

The Intersil ACS630MS is a Radiation Hardened 16-bit parallel error detection and correction circuit. It uses a modified Hamming code to generate a 6-bit check word from each 16-bit data word. The check word is stored with the data word during a memory write cycle; during a memory read cycle a 22-bit word is taken form memory and checked for errors. Single bit errors in the data words are flagged and corrected.

Features

• Devices QML Qualified in Accordance with MIL-PRF-38535

• Detailed Electrical and Screening Requirements are Contained in SMD# 5962-96711 and Intersil’ QM Plan

• 1.25 Micron Radiation Hardened SOS CMOS

• Total Dose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >300K RAD (Si)

• Single Event Upset (SEU) Immunity: <1 x 10-10 Errors/Bit/Day (Typ)

• SEU LET Threshold . . . . . . . . . . . . . . . . . . . . . . . >100 MEV-cm2/mg

• Dose Rate Upset . . . . . . . . . . . . . . . . >1011 RAD (Si)/s, 20ns Pulse

• Dose Rate Survivability. . . . . . . . . . . >1012 RAD (Si)/s, 20ns Pulse

• Latch-Up Free Under Any Conditions

• Military Temperature Range . . . . . . . . . . . . . . . . . . -55°C to +125°C

• Significant Power Reduction Compared to ALSTTL Logic

• DC Operating Voltage Range . . . . . . . . . . . . . . . . . . . . 4.5V to 5.5V

• Input Logic Levels

    - VIL = 30 of VCC Max

    - VIH = 70 of VCC Min

• Input Current ≤ 1µA at VOL, VOH

• Fast Propagation Delay . . . . . . . . . . . . . . . . 37ns (Max), 24ns (Typ)