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AM29F040B-90EC
AM29F040B-90EC
| Part Number | AM29F040B-90EC |
|---|---|
| Manufacturer | AMD (Advanced Micro Devices / Spansion / Infineon) |
| Category | Integrated Circuits (ICs) > Memory – Flash Memory |
| Description | 4 Megabit (512K x 8-Bit) 5.0V CMOS Uniform Sector Flash Memory, 90ns Access Time, 32-Pin TSOP Package, Commercial Temperature Grade. |
| Stock Status | In Stock |
| Origin | Original Factory |
Product Overview
The AM29F040B-90EC is a 4 Megabit (512K × 8-bit) single 5.0V NOR Flash IC originally designed by AMD, later transferred to Spansion and Infineon. With 90ns access time, it enables high-speed embedded operation without wait states. Organized into eight uniform 64KB sectors, it supports independent sector erasure and reprogramming. Equipped with embedded program/erase algorithms, it only needs a single 5V power rail for all operations. Packaged in 32-pin TSOP Type I, it serves as stable non-volatile storage for industrial control, telecom devices and legacy embedded systems.
Core Advantages
Single 5.0V Power Supply Operation
No extra high-voltage VPP supply required; read, program and erase functions run on a single 5.0V power rail.
Uniform Sector Architecture
8 independent 64KB uniform sectors, bringing great flexibility for firmware upgrade and parameter storage.
Embedded Internal Write/Erase Algorithms
Built-in automation handles timing and verification for programming & erasure, reducing MCU workload.
High Endurance & Long Data Retention
Supports minimum 1,000,000 write/erase cycles per sector, with typical 20-year data retention capability.
Key Specifications
| Brand | AMD / Spansion / Infineon |
|---|---|
| RoHS Status | Leaded / Standard SnPb Finish (RoHS compliant alternatives available) |
| EDA/CAD Model | Schematic symbol models, 3D CAD step profiles, and 32-TSOP PCB footprint land patterns are available on request |
| Warranty | 1-Year Standard Quality Warranty |
| Package / Case | 32-TSOP Type I (8.0 mm × 20.0 mm) |
| Mounting Type | Surface Mount (SMT / SMD) |
| Surface Marking / Silkscreen | AM29F040B-90EC Marking |
| Memory Density | 4 Megabit (512K × 8-Bit) |
| Memory Type | Parallel NOR Flash |
| Access Speed | 90 ns |
| Sector Architecture | Uniform Sectors (8 Sectors x 64 Kbytes) |
| Supply Voltage (VCC) | 4.5V to 5.5V (5.0V Nominal) |
| Interface | Parallel Asynchronous Interface, JEDEC Standard |
| Operating Current | 20mA(Read), 30mA(Program/Erase), 1μA(Standby) |
| Endurance | Minimum 1,000,000 write/erase cycles per sector |
| Data Retention | Typical 20 Years |
| Key Function | Erase Suspend / Erase Resume, Sector Lock Protection |
| Operating Temperature Range | 0°C to +70°C (Commercial Grade) |
| Packaging Format | Tray / Tube |
Typical Applications
- Telecommunication switches, routers, gateways, and PBX systems
- Industrial control units, Programmable Logic Controllers (PLCs), and CNC machinery
- Automotive diagnostic equipment and legacy ECU firmware modules
- Medical instrumentation and laboratory diagnostic devices
- Commercial gaming machines, arcade systems, and legacy PC BIOS chips
Order & Shipping Info
| Minimum Order Quantity (MOQ) | 1 Piece |
|---|---|
| Shipping Time | Shipped within 1-2 business days |
| Delivery Time | 3-7 working days worldwide |
| Shipping Methods | DHL, UPS, FedEx, EMS |
| Payment Methods | T/T (Bank Transfer), PayPal, Credit Card, Western Union |
Technical Support
For datasheet, sample requests, stock check, or bulk pricing, please use the Quick Inquiry form. We will reply within 24 hours.
Frequently Asked Questions
Q1: What does the “-90EC” suffix in AM29F040B-90EC represent?
A: “-90” stands for 90ns access time, “E” means 32-pin TSOP Type I package, “C” indicates commercial temperature range (0°C ~ +70°C).
Q2: Can the AM29F040B-90EC operate on a 3.3V power supply?
A: No, AM29F040B series requires 4.5V-5.5V power supply. If you need 3.3V version, please select AM29LV series low voltage flash memory.
Q3: Does this chip support sector erase suspend and resume functions?
A: Yes, it supports Erase Suspend & Erase Resume. Users can read data from other sectors while an erase operation is paused.
Q4: Is AM29F040B-90EC pin-to-pin compatible with MX29F040 / SST39SF040?
A: It shares compatible JEDEC command set and pin layout; most legacy boards support cross replacement after firmware verification.
Q5: What are common alternative parts for AM29F040B-90EC?
A: MX29F040BK-90EC, SST39SF040-90C-NH. Please confirm timing parameters before direct replacement.
Q6: What is the difference between AM29F040B-90EC and AM29F040B-70EC?
A: The suffix number differs: -70 = 70ns faster access speed; -90 = 90ns. Pinout, package and voltage are identical, can be mutually replaced if timing allows.
Q7: What’s the difference between AM29F040B-90EC and AM29F040B-90JC?
A: Suffix “E” = TSOP32 surface mount package; “J” = PLCC32 package. Function and electrical parameters are consistent, only packaging form differs.
Q8: What is the maximum erase cycle endurance of AM29F040B-90EC?
A: Minimum 1,000,000 program/erase cycles per sector, typical data retention reaches 20 years under normal operating conditions.
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