Key facts
- Brand
- AMD
- Model
- AM29F400AB
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-10
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AMD Am29F400AT/Am29F400AB Datasheet
The Am29F400AT/Am29F400AB is a 4 Mbit CMOS flash memory offered in 44‑pin SO and 48‑pin TSOP packages. It operates from a single 5.0 V supply and provides sector‑erase architecture, hardware sector protection, and an erase‑suspend feature. The device supports both 8‑bit and 16‑bit data bus configurations and includes a Ready/Busy output for program/erase status.
The document provides detailed electrical characteristics, timing diagrams, pin configurations, ordering information, and valid product combinations. It also lists latch‑up characteristics, pin capacitance data, and revision‑specific updates for performance and power‑management specifications.
AMD AM29F400AB specifications
| Memory size | 4 Mbit (524,288 × 8‑bit / 262,144 × 16‑bit) |
|---|---|
| Supply voltage | 5.0 V (single‑supply) |
| Maximum access time | 60 ns |
| Write/erase cycles | Minimum 100,000 cycles |
| Standby current | 1 pA typical |
| Active read current (Byte mode) | 20 mA typical |
| Active read current (Word mode) | 28 mA typical |
| Program/erase current | 30 mA typical |
All AMD AM29F400AB documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What sector erase architecture does the Am29F400AT/AB use?
It provides one 16 KB, two 8 KB, one 32 KB and seven 64 KB sectors, and any combination of sectors can be erased, including full‑chip erase.
How is the device reset to read mode?
Driving the RESET pin low terminates any embedded program or erase algorithm and forces the internal state machine back to read mode.
What supply voltage does the Am29F400AT/Am29F400AB require?
It operates from a single 5.0 V supply (±10%).
How many write/erase cycles are guaranteed for this flash memory?
The device guarantees a minimum of 100,000 write/erase cycles.