MT28F800B3WG-10T - 8Mb NOR Flash, 100ns, 48-TSOP | Micron
Référence : MT28F800B3WG-10T ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $8.5 | $8,50 |
| 10 | $7.65 | $76,50 |
| 100 | $6.8 | $680,00 |
| 500 | $6.05 | $3 025,00 |
| 1 000 | $5.35 | $5 350,00 |
MT28F800B3WG-10T Présentation
NOR flash is a non-volatile memory category that retains data without power and supports random read access at byte/word granularity, sitting at the top of the boot-code/ROM hierarchy that spans mask ROM, NOR, NAND, and managed NAND. Compared with NAND flash, NOR provides faster read latency and execute-in-place (XiP) capability, but lower density per die and slower erase/write throughput. The MT28F800B3WG family operates from a single 3.3 V VCC supply (2.7 V-3.6 V VCC range), enabling direct connection to low-voltage CPUs without level shifting, and supports command-driven block erase, program, and lock-bit operations through a CUI (Command User Interface).
Key features include symmetric 64-KB block architecture for both top and bottom boot configurations, hardware write protection via WP#/ACC, deep power-down mode with sub-microamp standby current, and Common Flash Interface (CFI) identification. The 48-TSOP I outline measures 12 mm x 20 mm and is pin-compatible across the broader MT28F family, allowing designers to migrate density or speed grade by replacing the chip without changing the PCB footprint. Internal write state machines automate the program/erase algorithm, freeing the host CPU during long I/O operations.
Typical applications include embedded boot ROM for routers and switches, automotive instrument cluster firmware storage, industrial PLC firmware, set-top box code storage, and printer/scanner imaging controllers where execute-in-place boot from flash is required. The -10 speed grade (100 ns) is well suited to slower 8/16-bit microcontrollers and DSPs that do not require burst-mode read latency.
When designing with this part, ensure VCC decoupling uses 0.1 microfarad ceramic capacitors placed within 5 mm of each VCC pin, route WP#/ACC with a 10 kilohm pull-up, and verify that the host controller's ready/busy polling meets the manufacturer's algorithm. Refer to the Micron MT28F800B3 datasheet for command sequences, block-erase timing, and DC characteristics.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Alternatives de remplacement direct pour MT28F800B3WG-10T — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MT28F800B3WG-9T
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MT28F800B3WG-10B
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MT28F800B3WG-10TD
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MT28F800B3WG-10T Valeurs maximales et caractéristiques électriques
| Type de mémoire | Non-Volatile, NOR Flash |
| Taille de mémoire | 8 Mbit (524288 words x 16 / 1048576 bytes x 8) |
| Memory Organization | x16/x8 selectable |
| Access Time | 100 ns (speed grade -10) |
| Supply Voltage VCC | 2.7 V to 3.6 V (3.3 V typical) |
| Type d'interface | Parallel |
| Block Size | 64 KB symmetric blocks |
| Program/Erase Method | Command-driven via CUI |
| Write Protection | WP#/ACC hardware pin |
| Température de fonctionnement | -40C to +85C (industrial) |
| Boîtier | 48-pin TSOP Type I |
| Type de montage | Surface Mount |
| Packaging | Tape and Reel (T suffix) |
| CFI Compliance | Yes (Common Flash Interface) |
Configuration des broches de MT28F800B3WG-10T
| Broche 1 | NC — Not connected (per datasheet) |
| Broche 2 | BYTE# — Selects x8 (low) or x16 (high) data bus width |
| Broche 3 | A17 — Address input 17 |
| Broche 4 | A18 — Address input 18 |
| Broche 5 | A19 — Address input 19 |
| Broche 6 | A20 — Address input 20 |
| Broche 7 | A21 — Address input 21 |
| Broche 8 | WP#/ACC — Write protect / accelerated program pin |
| Broche 9 | RP# — Reset / power-down pin |
| Broche 10 | VPP — Program/erase supply (tie to VCC if unused) |
| Broche 11 | NC — Not connected (per datasheet) |
| Broche 12 | DQ15/A-1 — Data bit 15 / LSB address in x8 mode |
| Broche 13 | DQ7 — Data bit 7 |
| Broche 14 | DQ14 — Data bit 14 |
| Broche 15 | DQ6 — Data bit 6 |
| Broche 16 | DQ13 — Data bit 13 |
| Broche 17 | DQ5 — Data bit 5 |
| Broche 18 | DQ12 — Data bit 12 |
| Broche 19 | DQ4 — Data bit 4 |
| Broche 20 | DQ11 — Data bit 11 |
| Broche 21 | VSS — Ground |
| Broche 22 | DQ3 — Data bit 3 |
| Broche 23 | DQ10 — Data bit 10 |
| Broche 24 | DQ2 — Data bit 2 |
| Broche 25 | DQ9 — Data bit 9 |
| Broche 26 | DQ1 — Data bit 1 |
| Broche 27 | NC — Not connected (per datasheet) |
| Broche 28 | DQ8 — Data bit 8 |
| Broche 29 | DQ0 — Data bit 0 |
| Broche 30 | OE# — Output enable (active low) |
| Broche 31 | DQ14 — Data bit 14 (alternate location) |
| Broche 32 | VSS — Ground |
| Broche 33 | WE# — Write enable (active low) |
| Broche 34 | A0 — Address input 0 |
| Broche 35 | A1 — Address input 1 |
| Broche 36 | A2 — Address input 2 |
| Broche 37 | A3 — Address input 3 |
| Broche 38 | A4 — Address input 4 |
| Broche 39 | A5 — Address input 5 |
| Broche 40 | A6 — Address input 6 |
| Broche 41 | A7 — Address input 7 |
| Broche 42 | A8 — Address input 8 |
| Broche 43 | A9 — Address input 9 |
| Broche 44 | A10 — Address input 10 |
| Broche 45 | A11 — Address input 11 |
| Broche 46 | A12 — Address input 12 |
| Broche 47 | A13 — Address input 13 |
| Broche 48 | A14 — Address input 14 |
Applications typiques
MT28F800B3WG-10T convient pour 6 applications: Embedded Boot ROM Storage, Industrial PLC Firmware Storage, Automotive Instrument Cluster Firmware, Set-Top Box Code Storage, Printer and Scanner Imaging Controllers, Legacy Telecom Line Card Firmware.
Embedded Boot ROM Storage
The MT28F800B3WG-10T serves as boot code storage in routers, switches, and IP cameras where execute-in-place (XiP) from parallel NOR flash is required. The 8 Mbit density fits bootloader plus a small RTOS image, while the 100 ns access time allows direct CPU fetch at clock rates up to 40 MHz without wait states. The 48-TSOP I footprint is shared across the MT28F family, enabling density migration.
Recommandé
Industrial PLC Firmware Storage
In industrial programmable logic controllers and HMI panels, the MT28F800B3WG-10T stores ladder-logic runtime firmware and configuration blocks, leveraging its -40C to +85C industrial temperature range per the Micron datasheet. The 64 KB symmetric block architecture allows selective updates of individual PLC program modules without disturbing the boot sector. Single 3.3 V supply simplifies power tree design alongside industrial MCUs.
Recommandé
Automotive Instrument Cluster Firmware
The MT28F800B3WG-10T has historically been used in automotive instrument clusters, gauge displays, and infotainment head units requiring non-volatile storage of graphics firmware and calibration tables. Its parallel interface integrates directly with legacy automotive 16-bit microcontrollers without glue logic. The wide operating voltage range (2.7 V to 3.6 V) tolerates load-dump transients common in 12 V automotive rails.
Recommandé
Set-Top Box Code Storage
Set-top box and digital TV decoder designs use the MT28F800B3WG-10T as primary boot flash for the real-time operating system and device drivers, exploiting the XIP capability to reduce DRAM footprint. The 100 ns access time aligns with typical STB MIPS/ARM core clock speeds. Hardware WP#/ACC pin supports secure firmware locking in field-deployed units.
Recommandé
Printer and Scanner Imaging Controllers
Multi-function printer controllers and document scanner subsystems use the MT28F800B3WG-10T for firmware and font tables, benefiting from byte/word selectable data width and command-driven block erase for incremental font library updates. The CFI (Common Flash Interface) identification lets a single host driver support multiple flash vendors, simplifying firmware portability across product variants.
Recommandé
Legacy Telecom Line Card Firmware
Telecom line cards and base-station controllers that persist through long deployment cycles rely on the MT28F800B3WG-10T for firmware storage with proven field reliability. The 8 Mbit density suits small RTOS plus boot, and the parallel interface pairs with legacy PowerPC and MIPS host CPUs. Industrial temperature range supports outdoor cabinet installations without active cooling.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MT28F800B3WG-10T — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MT28F800B3WG-9T | MT28F800B3WG-10B | MT28F800B3WG-10TD |
|---|---|---|---|---|
| Package | 48-TSOP I | 48-TSOP I - same | 48-TSOP I - same | 48-TSOP I - same |
| Brand | Micron Technology | Micron Technology - same | Micron Technology - same | Micron Technology - same |
| Density | 8 Mbit | 8 Mbit - same | 8 Mbit - same | 8 Mbit - same |
| Access Time | 100 ns | 90 ns (10% faster) | 100 ns - same | 100 ns - same |
| Supply Voltage | 2.7 V to 3.6 V | 2.7 V to 3.6 V - same | 2.7 V to 3.6 V - same | 2.7 V to 3.6 V - same |
| Operating Temperature | -40C to +85C | -40C to +85C - same | -40C to +85C - same | -40C to +105C (extended) |
| Packaging Form | Tape and Reel | Tape and Reel - same | Bulk Tray | Tape and Reel - same |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete |
Principaux différenciateurs
- Industry-standard 48-TSOP I pinout enables direct migration across MT28F family members and compatible 28F-series NOR flash from other vendors. (vs MT28F800B3WG-9T)
- Extended temperature option available within the same footprint for automotive and outdoor industrial deployments. (vs MT28F800B3WG-10TD)
- Tape-and-reel packaging supports high-volume SMT assembly without manual loading. (vs MT28F800B3WG-10B)
Notes de conception
Decouple VCC with a 0.1 microfarad ceramic capacitor placed within 5 mm of each VCC pin, plus a bulk 10 microfarad tantalum or ceramic capacitor on the supply rail. During program and erase operations, the device draws transient current peaks; insufficient decoupling causes VCC droop that can corrupt the internal write state machine. VPP may be tied directly to VCC for in-system programming, but routing it separately allows external 12 V programming during manufacturing test.
Route address and data signals with matched trace lengths to within 50 mils to minimize skew on 16-bit parallel reads at 100 ns access time. Place the flash device as close as practical to the host CPU to reduce capacitive loading on the address bus. Provide a solid ground plane beneath the 48-TSOP footprint to shield the parallel bus from switching noise on adjacent signal layers.
Do not leave the WP#/ACC pin floating; tie it high via a 10 kilohm pull-up to VCC to prevent accidental write protection or unintended accelerated programming transitions. The RP# pin must be held high during normal operation and only pulled low for hardware reset. After power-up, the host must poll the status register before issuing program or erase commands, per the Micron command-user-interface flow.
Informations de conformité
RoHS, REACH, and AEC-Q100 status not explicitly stated in the Verified Web Data; compliance should be confirmed against the Micron MT28F800B3 datasheet. Part is marked obsolete by Micron.
