The AT29C020 is a 5-volt in-system Flash programmable and erasable read-only memory (PEROM) from Atmel.
The document describes the Atmel AT29C020, a 2-megabit (262,144 bytes) in-system Flash programmable and erasable read-only memory (PEROM). Manufactured using advanced nonvolatile CMOS technology, it offers access times of up to 70 ns and operates on a single 5-volt supply. The device supports sector-based programming where 256-byte sectors are erased and programmed simultaneously.
| Memory Capacity | 2 megabits (262,144 bytes) |
|---|---|
| Access Time | 70 ns |
| Supply Voltage | 5V (+10%) |
| Sector Size | 256 Bytes/Sector |
| Program Cycle Time | 10 ms |
| Active Current | 40 mA |
| Standby Current | < 100 pA |
| Endurance | > 10,000 Cycles |
The device operates on a single 5-volt supply with a tolerance of +10%.
Reprogramming is performed on a sector basis, loading and programming 256 bytes of data simultaneously.