Am28F256 is a 256 K Flash memory organized as 32 Kbytes of 8 bits each. It features high performance, low power consumption, and compatibility with JEDEC standard.
The Am28F256 is a 256‑kilobit (32 K × 8‑bit) CMOS flash memory offered in 32‑pin PDIP, PLCC and TSOP packages. It provides fast 70 ns maximum access time, low active current (30 mA) and ultra‑low standby current (100 pA). The device can be programmed and erased in‑system using a 12.0 V ±5% high‑voltage input and supports a minimum of 10 000 write/erase cycles.
The memory uses a command‑register architecture compatible with standard JEDEC 32‑pin pinouts. Latch‑up protection up to 100 mA from –1 V to VGG + 1 V and various write‑inhibit features protect against accidental programming. Temperature ranges cover commercial (0 °C to +70 °C) and industrial (–40 °C to +85 °C) grades.
| Memory Capacity | 256 Kilobit (32 K × 8‑Bit) |
|---|---|
| Maximum Access Time | 70 ns |
| Active Current (max) | 30 mA |
| Standby Current (max) | 100 pA |
| Write/Erase Cycles (minimum) | 10,000 |
| Programming / Erase Voltage | 12.0 V ±5% |
| Latch‑up Protection Current | 100 mA (‑1 V to VGG + 1 V) |
| Package Types | 32‑pin PDIP, PLCC, TSOP |
| Industrial Temperature Range | -40 °C to +85 °C |
The device has a maximum access time of 70 ns.
It supports at least 10 000 write/erase cycles.
Programming and erasing use a 12.0 V high‑voltage input (±5%).
The memory is offered in 32‑pin PDIP, PLCC, and TSOP packages.