The Marconi 54 HST 630 is a 16-bit parallel Error Detection and Correction (EDAC) circuit designed for high-speed operation in radiation-hard environments. It utilizes a modified Hamming code to generate a 6-bit check word from each 16-bit data word, allowing it to detect and correct single-bit errors while flagging dual-bit errors.
| Technology | CMOS-SOS technology |
|---|---|
| Radiation Hardness | 1 MRad (Si) |
| Supply Voltage | 4.5V to 5.5V |
| Operating Temperature | -55°C to +125°C |
| Write Cycle Checkword Generation | 40ns typ. |
| Read Cycle Error Flagging | 20ns typ. |
The device detects and corrects single-bit errors in data words, but it only flags dual-bit errors without correction.
The absolute maximum rating for supply voltage is 10V, though typical operation is between 4.5V and 5.5V.