The AT29C010A is a 5-volt-only in-system Flash programmable and erasable read only memory (PEROM). It features fast read access time, sector program operation, internal program control and timer, hardware and software data protection, etc.
The AT29C010A is a 5‑volt‑only, in‑system flash programmable memory offering 1 megabit (128K × 8) organized in 1024 sectors of 128 bytes each. It features fast read access (70 ns), low power consumption (50 mA active, 300 pA standby), and optional boot‑block lockout.
The document describes pin assignments, block diagram, device operation (read, byte load, program), software and hardware data‑protection mechanisms, absolute maximum ratings, electrical characteristics, and detailed packaging dimensions for both PLCC and TSOP variants.
| Memory size | 1 megabit (128K × 8) |
|---|---|
| Read access time | 70 ns |
| Supply voltage | 5 V (±10%) |
| Active current | 50 mA |
| Standby current (CMOS) | 300 pA |
| Number of sectors | 1024 (128 bytes each) |
| Boot blocks | Two 8 KB blocks with lockout |
| Operating temperature (industrial) | -40 °C to 85 °C |
| Input low voltage | 0.8 V |
| Input high voltage | 2.0 V |
It operates from a single 5 V supply with a tolerance of ±10 %.
The device contains 1024 sectors, each 128 bytes in size.
The end of a program cycle can be detected by DATA polling or by monitoring the toggle bit (/O6).