4M x 8 Bit/2M x 16 Bit CMOS 3.0 Volt-only, Boot Sector Flash Memory
The A29L320A series is a 4 M×8‑bit (or 2 M×16‑bit) CMOS flash memory that operates from a single 3.0 V supply. It offers regulated voltage operation from 2.7 V to 3.6 V, access times of 70 ns to 120 ns, and typical 100 000 program/erase cycles per sector with 20‑year data retention at 125 °C. Features include single‑power‑supply operation, low active read current (2 mA at 1 MHz), 20 mA program/erase current, and 500 nA standby current.
The device is available in 48‑pin TSOP or 48‑ball TFBGA packages and provides flexible sector architecture (eight 8 KB sectors and sixty‑three 64 KB sectors). Pin functions such as READY/BUSY, RESET, and WP/ACC are described, along with word/byte configuration, bus operations, and power‑saving modes like automatic sleep and standby.
| Memory density | 4M×8 bit / 2M×16 bit |
|---|---|
| Supply voltage range | 2.7 V to 3.6 V |
| Active read current (1 MHz) | 2 mA |
| Program/erase current | 20 mA (typical) |
| Standby current | 500 nA (typical) |
| Access times (max) | 70 ns, 80 ns, 90 ns, 120 ns |
| Data retention | 20 years at 125 °C |
| Package options | 48‑pin TSOP or 48‑ball TFBGA |
| Sector architecture | Eight 8 KB sectors, sixty‑three 64 KB sectors |
The device operates with a regulated voltage range of 2.7 V to 3.6 V.
It supports typical 100,000 program/erase cycles per sector.
The RESET pin provides a hardware method of resetting the device to reading array data.
The maximum access times are 70 ns, 80 ns, 90 ns, and 120 ns.