Alternatives to Infineon Technologies AM29F400BB-70EF
Infineon Technologies AM29F400BB-70EF and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 AM29F400BB-70EFInfineon Technologies |  MX29F400CBTI-70GMacronix | M29F400FB55N3E2Alliance Memory | +2more | |
|---|---|---|---|---|
| FFF Compatibility | Shares the exact JEDEC standard TSOP-48 pinout assignment, requiring no physical or electrical schematic alterations.Housed in the standard TSOP-48 package with identical 12mm x 20mm body dimensions.Operates on a 5V supply with 4Mbit density, selectable 512K x 8 or 256K x 16 organization, and bottom boot block architecture matching the original. | Pinout corresponds perfectly to the JEDEC standard TSOP-48 pin configuration.Matches the 12mm x 20mm TSOP-48 physical footprint of the original device.Matches the 5V supply, 4Mbit density, and bottom boot block architecture while offering superior speed (55ns) and wider temperature tolerance. | ||
 AI Summary | AM29F400BB-70EF by Infineon Technologies: Flash Memory, Parallel NOR, 4 Mbit, 512K x 8bit / 256K x 16bit, CFI, Parallel, TSOP, 48 Pins. | The MX29F400CBTI-70G is a perfect direct drop-in replacement for the obsolete AM29F400BB-70EF. It matches all electrical characteristics, 5.0V supply voltage, 70ns speed, and bottom boot block configuration in an active JEDEC TSOP-48 package.
| The M29F400FB55N3E2 is a high-performance alternative from Alliance Memory's legacy partnership line. It matches the 5.0V operation and bottom-boot configuration of the original part while upgrading the system to a faster 55ns access speed and robust automotive-grade thermal specifications.
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| Lifecycle Status | Obsolete | Active | Unknown | |
| Market Availability | Discontinued | In stock | Unknown | |
| REACH | Unknown | REACH | Unknown | |
| RoHS | RoHS | RoHS | Unknown | |
| Description | Flash Memory, Parallel NOR, 4 Mbit, 512K x 8bit / 256K x 16bit, CFI, Parallel, TSOP, 48 Pins | FLASH - NOR Memory IC 4Mbit Parallel 70 ns 48-TSOP | The M29F400FB55N3E2 is a high-performance alternative from Alliance Memory's legacy partnership line. It matches the 5.0V operation and bott | |
| Manufacturer | Infineon Technologies | Macronix | Alliance Memory | |
| Type | NOR Flash | Memory | Component | |
| Datasheet | Open | Open | N/A | |
| Lead Time | 15 weeks | 52 weeks | Unknown | |
| Country of Origin | TH | - | - | |
| Export Control Class Number | 3A991.b.1.a | 3A991B1B1 | EAR99 | |
| HTSUS Code | 85423261 | - | - | |
| Moisture Sensitivity Level | - | - | - | |
| Interfaces | CFI, Parallel | - | - | |
| Access Time | 70ns | - | - | |
| IC Mounting | Surface Mount | - | - | |
| No. of Pins | 48Pins | - | - | |
| Product Range | 5V Parallel NOR Flash Memories | - | - | |
| Memory Density | 4Mbit | - | - | |
| Flash Memory Type | Parallel NOR | - | - | |
| IC Case / Package | TSOP | - | - |
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Frequently asked questions
Yes. The Infineon Technologies AM29F400BB-70EF is marked obsolete, so the manufacturer has discontinued it and any remaining supply is limited to distributor stock. The qualified second sources on this page are active parts you can design in today.
The closest qualified second sources for the Infineon Technologies AM29F400BB-70EF are the MX29F400CBTI-70G (Macronix) and the M29F400FB55N3E2 (Alliance Memory), out of 4 matched alternatives in total. Each is compared against the original on fit, form and function in the table above.
Not always. The alternatives to the AM29F400BB-70EF are matched on function but can differ in package, pinout or a key parameter, so review the fit/form/function notes in the table and the datasheet before designing one in.
The AM29F400BB-70EF (Infineon Technologies) is a part in the NOR Flash category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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