Am29LV640D/Am29LV641D is a 64 Megabit (4 M x 16-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileIO Control
The Am29LV640D and Am29LV641D are 64‑Mbit (4 M × 16‑bit) CMOS flash memory devices that operate from a single 3.0 V to 3.6 V supply. They support single‑power‑supply read, erase, and program operations and include VersatileIO™ control for flexible voltage handling. Access times as fast as 90 ns are available, and the devices are CFI‑compliant for easy system integration.
Key features include a 128‑sector architecture (32 Kword per sector), SecSi (Secured Silicon) sector for permanent identification, low‑power consumption (200 nA standby), and several package options such as 48‑pin TSOP, 56‑pin SSOP, 63‑ball FBGA, and 64‑ball Fortified BGA. The datasheet also details command sequences, timing diagrams, and hardware protection mechanisms.
| Memory size | 64 Mbit (4 M × 16‑bit) |
|---|---|
| Operating voltage | 3.0 V to 3.6 V |
| Access time | 90 ns (fastest) |
| Active read current | 9 mA typical at 3.0 V, 5 MHz |
| Erase/program current | 26 mA typical |
| Standby current | 200 nA typical |
| Sector count | 128 × 32 Kword sectors |
| Word program time | 11 µs typical |
| Sector erase time | 0.9 s typical |
The devices operate from 3.0 V to 3.6 V for read, erase, and program functions.
It contains 128 sectors, each 32 Kword in size.
Typical standby current is 200 nA.