AMD's Am29LV004B 4 Megabit (512 K x 8-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory has single power supply operation, high performance, ultra low power consumption and flexible sector architecture.
The Am29LV004B is a 4 Megabit (512 K × 8‑bit) CMOS flash memory device offered in a 40‑pin TSOP package. It operates from a single 3.0 V power supply and supports both full (2.7‑3.6 V) and regulated (3.0‑3.6 V) voltage ranges, making it suitable for battery‑powered and high‑performance microprocessor applications.
The datasheet details the device’s sector architecture (one 16 KB, two 8 KB, one 32 KB, and seven 64 KB sectors), pin functions (CE#, WE#, OE#, RESET#, RY/BY#), power‑saving modes, and programming/erase algorithms. It also lists timing specifications, current consumption, temperature ranges, and ordering information.
| Memory Size | 4 Megabit (512 K × 8‑bit) |
|---|---|
| Supply Voltage (full range) | 2.7 V to 3.6 V |
| Supply Voltage (regulated range) | 3.0 V to 3.6 V |
| Access Time | 70 ns – 120 ns (depending on speed option) |
| Read Current | 7 mA |
| Program/Erase Current | 15 mA |
| Automatic Sleep Mode Current | 200 nA |
| Standby Mode Current | 200 nA |
| Package Type | 40‑pin TSOP |
| Temperature Range (Commercial) | 0 °C to +70 °C |
| Sector Architecture | 1 × 16 KB, 2 × 8 KB, 1 × 32 KB, 7 × 64 KB |
| Reset Pin | RESET# (active low) |
It requires a single 3.0 V power supply for both read and write operations, with a full voltage range of 2.7 V to 3.6 V.
The device contains one 16 KB sector, two 8 KB sectors, one 32 KB sector, and seven 64 KB sectors.
Depending on the speed option, the maximum access time can be up to 120 ns.
The RESET# pin provides a hardware reset and is active low.