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STMicroelectronics M29F080D70M6
- Part No.:
- M29F080D70M6
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 44-SOIC (0.525", 13.34mm Width)
- Datasheet:
-
M29F080D70M6.pdf
- Description:
- IC FLASH 8MBIT PARALLEL 44SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,319
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Product details
Overview
M29F080D70M6 from STMicroelectronics is an 8 Mbit (1 Mb × 8) uniform-block NOR Flash memory operating at 5V ±10%, with 70 ns access time, 16 × 64 KB erasable blocks, embedded program/erase controller, and CFI-compliant command interface. It supports erase suspend/resume, unlock bypass programming, and temporary block unprotection for in-system firmware updates in microcontroller-based embedded systems.
For engineers reviewing the M29F080D70M6 datasheet, M29F080D70M6 pinout, M29F080D70M6 application, or M29F080D70M6 equivalent, key selection criteria include uniform block architecture, JEDEC-standard command set, open-drain RB signal for operation status monitoring, and ECOPACK® lead-free SO44 packaging for industrial-grade reliability.
Technical Context
This device implements a synchronous command-driven architecture with on-chip state machine control for byte-programming and sector-erase operations. Its CFI query structure (64-bit security code, geometry definition, algorithm-specific extensions) enables host system auto-configuration without hard-coded timing or address maps.
It uses dual-control bus timing (Chip Enable– or Write Enable–controlled writes), supports data polling (DQ7) and toggle bit (DQ6) status detection, and features hardware reset via RP pin with tPLPX timing compliance. The Ready/Busy (RB) open-drain output allows multi-device busy-line arbitration in stacked memory configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (1,048,576 × 8 bits), enabling full firmware image storage for 8-bit MCUs with ≤1 MB code space. |
| Access Time | 70 ns max - ensures compatibility with 14 MHz bus clocks in legacy 8051 or Z80-based controllers. |
| Block Architecture | 16 uniform 64 KB blocks - permits selective firmware update without erasing entire memory, preserving bootloader and calibration data. |
| Endurance | 100,000 program/erase cycles per block - supports field-upgradable firmware with >10-year service life under daily update profiles. |
| Supply Voltage | 5V ±10% - operates directly from standard TTL/CMOS logic rails without external regulation. |
| Standby Current | ≤100 µA - reduces system power in sleep modes for battery-backed industrial controllers. |
| Security Feature | 64-bit CFI Security Code - prevents unauthorized reprogramming by validating host command sequence integrity. |
Pinout & Package
Package: SO44 (44-pin Plastic Small Outline, 525 mils body width, ECOPACK® lead-free).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Address Inputs | 20-bit address bus supporting full 1 MB linear addressing; latched on CE# or WE# falling edge during command writes. |
| DQ0–DQ7 | Data I/O | 8-bit bidirectional data bus; outputs read data or latches command bytes (e.g., 0xAA, 0x55) during write sequences. |
| E (CE#) | Chip Enable | Active-low chip select; disables all internal circuitry when high, placing DQ pins in high-impedance state. |
| G (OE#) | Output Enable | Active-low read strobe; controls data output gating independent of CE#, enabling multiplexed bus sharing. |
| W (WE#) | Write Enable | Active-low write strobe; latches command/data on rising edge when OE# = VIH, enabling JEDEC-compliant command execution. |
| RP | Reset / Block Unprotect | Hardware reset input (tPLPX min); transitions to VID enable temporary unprotection of all locked blocks for emergency reprogramming. |
| RB | Ready/Busy Output | Open-drain status indicator; low during active program/erase, high-Z during read/auto-select - supports wired-OR multi-device busy monitoring. |
| VCC | Power Supply | 5V ±10% supply; powers all operations; includes lockout voltage (VLKO) protection to prevent corruption during brown-out conditions. |
| VSS | Ground | Reference node for all signals; requires local 0.1 µF decoupling to suppress ICC3 current surges during erase cycles. |
Key Features
| Feature | Design Value |
|---|---|
| Erase Suspend/Resume | Allows reading or programming another block while one block is erasing - enables real-time firmware patching without halting system operation. |
| Unlock Bypass Programming | Reduces batch programming time by skipping initial unlock sequence after first command - cuts production line write time by ~35% vs standard mode. |
| Temporary Block Unprotection | RP pin assertion (VID level) overrides permanent block locks - enables field recovery of corrupted boot sectors without full chip erase. |
| CFI Compliance | Provides standardized query table (Tables 16–21) for automatic host detection of geometry, timing, and command set - eliminates hardcoded driver dependencies. |
| Electronic Signature | Manufacturer Code 20h + Device Code F1h - enables runtime identification and firmware version matching in multi-vendor BOM environments. |
Applications
| Industrial PLC Firmware Storage | Automotive Instrument Cluster Bootloader |
|---|---|
|
Use Scenario: Storing and updating ladder logic programs and I/O configuration tables in programmable logic controllers with no external memory controller. IC Role / Device Role / Timing Role: Standalone non-volatile code storage with direct MPU bus interface; 70 ns access satisfies 14 MHz Z80/80C51 timing budgets. Use Value: Uniform 64 KB blocks allow incremental firmware patches without disrupting operational logic stored in adjacent blocks. |
Use Scenario: Hosting boot code and display assets for digital instrument clusters requiring AEC-Q100 Grade 2 temperature resilience. IC Role / Device Role / Timing Role: Primary boot memory mapped to MCU reset vector; RP pin used for safe recovery from failed OTA update. Use Value: 100,000-cycle endurance and ECOPACK® packaging meet automotive lifecycle and RoHS compliance requirements. |
| Medical Device Calibration Data Archive | Point-of-Sale Terminal Application Code |
|
Use Scenario: Retaining factory-calibrated sensor coefficients and regulatory audit logs across power cycles in Class II medical equipment. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage with CFI security code validation preventing unauthorized parameter modification. Use Value: Temporary block unprotection via RP pin enables recalibration in service mode without exposing full memory to reprogramming risk. |
Use Scenario: Executing payment processing firmware in EMV-certified POS terminals where firmware integrity must survive frequent power interruptions. IC Role / Device Role / Timing Role: Read-optimized NOR Flash with automatic standby mode reducing idle power in battery-backed transaction buffers. Use Value: Erase suspend capability allows background log writes during active card swipe operations - eliminating transaction latency spikes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NOR Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AM29LV081B-70EC | 3.3V supply only; 70 ns access; 64 KB uniform blocks; lacks CFI query support. | Requires level-shifting for 5V systems; no auto-configuration - driver must be hardcoded to AMD command set. | Select only if migrating to 3.3V platform and CFI is not required for field-upgrade flexibility. |
| SST39VF800A-70-4C-NHE | 3.3V supply; 70 ns access; 64 KB blocks; supports both JEDEC and SST proprietary commands. | Higher standby current (1 µA vs 100 µA); no RP pin - block unprotection requires software-only unlock sequence. | Prefer for cost-sensitive 3.3V designs where RP-based hardware recovery is not mandated by safety standards. |
Compared with M29F080D70M6, AM29LV081B-70EC offers lower voltage operation but sacrifices 5V compatibility and CFI configurability, while SST39VF800A-70-4C-NHE provides dual-command support yet lacks the RP-controlled hardware recovery essential for certified industrial firmware resilience.
Availability
M29F080D70M6 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive instrument cluster bootloaders, medical device calibration archives, and point-of-sale terminal application code requiring stable component supply across extended product lifecycles.
Supply support for M29F080D70M6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader specializing in microcontrollers, power management, and non-volatile memory solutions for industrial, automotive, and consumer markets.
M29F080D70M6 belongs to ST's legacy 5V NOR Flash product line, designed specifically for robust, pin-compatible replacement of EPROMs and early-generation Flash in long-lifecycle embedded systems requiring field-upgradability and hardware-level data protection.
FAQ
What is the function of the RP pin on M29F080D70M6?
The RP (Reset/Block Temporary Unprotect) pin serves two distinct functions: holding it low for ≥tPLPX performs a hardware reset, while driving it to VID (valid inhibit voltage) temporarily unlocks all protected memory blocks. This enables emergency firmware recovery without requiring full chip erase or command-based unlocking sequences, critical for safety-critical field deployments.
Does M29F080D70M6 support true random-access reads like ROM?
Yes - M29F080D70M6 defaults to Read mode on power-up and behaves electrically identical to a ROM or EPROM: any address presented with E# and G# low yields valid data on DQ0–DQ7 within 70 ns. No initialization sequence or command is needed for basic read functionality, ensuring drop-in compatibility with legacy 8-bit MPU designs.
How does erase suspend improve system responsiveness during firmware updates?
Erase suspend allows the host processor to issue a read or program command to a different memory block while an erase operation is active. This enables concurrent background erase of obsolete firmware sections while foreground tasks (e.g., real-time sensor acquisition or UI rendering) continue uninterrupted - eliminating visible latency during over-the-air updates.
Is M29F080D70M6 compatible with JEDEC-standard Flash controllers?
Yes - its command set fully complies with JEDEC publication JESD68 (Common Flash Interface), including Auto Select, Block Erase, Chip Erase, and CFI Query commands. The 64-bit security code and standardized query table (accessible via Read CFI Query Command) allow generic Flash controllers to auto-detect geometry, timing, and command mapping without vendor-specific firmware.
M29F080D70M6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 44-SOIC (0.525", 13.34mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 8Mbit
- Memory Organization:
- 1M x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 70ns
- Access Time:
- 70 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-SO
M29F080D70M6 FAQ
1.How can I place an order for M29F080D70M6 through Aetrix?
Please submit a Request for Quotation (RFQ) for M29F080D70M6 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for M29F080D70M6 reliable?
The price and inventory of M29F080D70M6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M29F080D70M6 is usually 5 days.
3.What payment methods are accepted for M29F080D70M6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M29F080D70M6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M29F080D70M6?
M29F080D70M6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M29F080D70M6 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for M29F080D70M6?
For technical support, including M29F080D70M6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M29F080D70M6 requirements.
6.How does Aetrix verify that M29F080D70M6 is sourced from the original manufacturer or authorized distributors?
All M29F080D70M6 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that M29F080D70M6 meets industry standards.
7.What is the process for return or replacement of M29F080D70M6?
All M29F080D70M6 units undergo pre-shipment inspection (PSI). If there is an issue with M29F080D70M6, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The M29F080D70M6 part is unused and in its original packaging.
Return procedure for M29F080D70M6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
M29F080D70M6 Tags
-
M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
Microchip Technology
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24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
STMicroelectronics
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
Microchip Technology
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AT24C04C-SSHM-T
Microchip Technology
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24LC01BT-I/SN
Microchip Technology
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24AA02UIDT-I/OT
Microchip Technology
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AT24C08C-STUM-T
Microchip Technology
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