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Microchip Technology AT29BV010A-12TU
- Part No.:
- AT29BV010A-12TU
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT29BV010A-12TU.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,452
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Product details
Overview
AT29BV010A-12TU from Atmel is a 1-Mbit (128K × 8) single-supply 2.7V–3.6V Flash memory IC used for in-system reprogrammable nonvolatile storage in embedded boot code and firmware applications. It features 120 ns read access time, sector-based programming with 1024 × 128-byte sectors, and dual 8K-byte boot blocks with independent lockout. Designed for industrial temperature range (−40°C to +85°C), it supports standard parallel interface operation compatible with EPROM timing.
For engineers reviewing the AT29BV010A-12TU datasheet, AT29BV010A-12TU pinout, AT29BV010A-12TU application, or AT29BV010A-12TU equivalent, key selection considerations include its software-protected sector erase/program architecture, DATA polling and toggle-bit program status detection, CMOS/TTL I/O compatibility, and PLCC-32/TSOP-32 packaging options for legacy board integration.
Technical Context
The AT29BV010A-12TU implements a parallel-addressed Flash memory architecture with A0–A16 address inputs and I/O0–I/O7 bidirectional data bus, operating in standard read, byte-load program, and software-protected sector erase modes. Its internal control logic handles automatic sector erase before programming, latches 128 bytes per sector at microprocessor speed, and uses internal timers for program cycle execution.
Hardware protection includes VCC sense (<2.0V inhibit), 10 ms power-on delay, OE/CE/WE state-dependent program inhibition, and noise filtering on WE/CE inputs (<15 ns rejection). Software protection requires a three-byte command sequence (AAh→55h→A0h) to enable programming, with boot block lockout activated via a seven-command algorithm.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (131,072 × 8), organized as 128K words × 8 bits - supports full firmware image storage for 8-bit microcontrollers. |
| Read Access Time | 120 ns max - enables direct replacement of 120 ns EPROMs without timing redesign. |
| Supply Voltage | 2.7V to 3.6V single supply - eliminates need for separate VPP programming voltage or charge pumps. |
| Active Current | 15 mA at 5 MHz / 3.6V - low active power enables battery-backed or energy-constrained systems. |
| Standby Current | 50 µA CMOS standby - reduces quiescent power in sleep-mode embedded controllers. |
| Sector Size | 128 bytes × 1024 sectors - allows fine-grained firmware updates without erasing entire device. |
| Endurance | Typical >10,000 program/erase cycles per sector - supports field-upgradable firmware with long service life. |
| Boot Blocks | Two 8K-byte blocks (0x0000–0x1FFF and 0xE000–0xFFFF) with independent lockout - secures bootloader code against accidental overwrite. |
Pinout & Package
AT29BV010A-12TU is available in 32-lead TSOP (Type 1, package code 32T) and 32-lead PLCC (package code 32J); this variant uses the TSOP-32 surface-mount package with 8 mm × 20 mm footprint and 0.5 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus selecting one of 131,072 locations; A7–A16 define sector address during programming. |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit parallel data path for reads, byte loads, and product identification; TTL/CMOS compatible. |
| CE | Chip Enable | Active-low chip select; must be low for read or program; high disables outputs and enters standby. |
| OE | Output Enable | Active-low output control; used with CE to manage bus contention during read operations. |
| WE | Write Enable | Active-low control for byte loading during sector programming; triggers latching on falling edge. |
| VCC | Power Supply | 2.7V–3.6V main supply; internal VCC sense prevents programming below ~2.0V. |
| GND | Ground | Reference for all signals and power; decoupling required near VCC pin for stable operation. |
| NC | No Connect | Two unconnected pins (A9 in PLCC, one NC in TSOP) - must remain floating, not tied to VCC/GND. |
Key Features
| Feature | Design Value |
|---|---|
| Single-cycle sector erase & program | Eliminates separate erase step - reduces firmware update latency and simplifies host driver logic. |
| DATA polling on I/O7 | Enables real-time program completion detection without external hardware or fixed delays. |
| Toggle-bit status on I/O6 | Provides alternative asynchronous method to monitor program/erase progress using any address. |
| Software boot block lockout | Prevents accidental overwrite of critical bootloader code in either lower or upper 8K region independently. |
| Green Pb/halide-free packaging | Meets RoHS Directive 2011/65/EU requirements for environmentally compliant manufacturing. |
| Input overvoltage tolerance | Address and control inputs accept 0–5.5V signals - simplifies level-shifting in mixed-voltage systems. |
Applications
| Industrial PLC Firmware Storage | Legacy Embedded Bootloader |
|---|---|
Use Scenario: Storing configuration parameters and firmware images in programmable logic controllers requiring field updates without hardware intervention. IC Role / Device Role / Timing Role: Nonvolatile parallel Flash memory providing fast read access for runtime code execution and sector-erasable storage for firmware patches. Use Value: 120 ns access time ensures deterministic instruction fetch timing; software lockout protects factory-installed control logic from corruption during remote updates. | Use Scenario: Hosting boot code for 8-bit microcontrollers in medical devices where secure startup sequence and regulatory traceability are mandatory. IC Role / Device Role / Timing Role: Primary boot memory mapped at reset vector, with protected lower 8K block storing verified bootloader and upper block holding application firmware. Use Value: Dual boot block lockout guarantees bootloader integrity; 10,000-cycle endurance supports lifetime calibration and safety-critical firmware revisions. |
| Automotive ECU Calibration Storage | Point-of-Sale Terminal Firmware |
Use Scenario: Storing engine calibration maps and diagnostic data in automotive electronic control units operating across extended temperature ranges. IC Role / Device Role / Timing Role: In-system reprogrammable Flash memory interfaced directly to MCU data bus, supporting CAN-based firmware updates. Use Value: Industrial −40°C to +85°C rating ensures reliability under hood conditions; sector granularity enables map-only updates without disturbing base firmware. | Use Scenario: Holding payment application firmware and localization assets in retail terminals deployed globally with regional software variants. IC Role / Device Role / Timing Role: Firmware storage device accessed during cold boot and updated via secure USB or Ethernet channel. Use Value: Green packaging complies with EU WEEE/RoHS mandates; DATA polling simplifies update verification in resource-constrained terminal OS. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF010-70-4C-NHE | 70 ns access time, 3.0V–3.6V supply only, no boot block lockout, 100,000-cycle endurance | Lacks independent boot block protection; higher speed but narrower voltage range | Choose when faster read timing is critical and bootloader security is managed externally. |
| MX29LV160CBTI-70G | 16 Mbit density, 70 ns access, 2.7V–3.6V, CFI-compliant, top/bottom boot sectors with lock bits | Higher density and standardized command set; boot sector layout differs (16K/8K/32K) | Prefer for new designs needing scalability and industry-standard CFI interface support. |
Compared with SST39VF010-70-4C-NHE and MX29LV160CBTI-70G, the AT29BV010A-12TU offers tighter voltage tolerance (2.7V min), proven 10,000-cycle sector endurance, and dedicated dual 8K boot blocks with independent lockout - making it optimal for cost-sensitive, legacy-compatible embedded systems where bootloader integrity is paramount.
Availability
AT29BV010A-12TU is available at Aetrix Electronics and suitable for industrial PLC firmware storage, legacy embedded bootloader implementation, and automotive ECU calibration storage requiring stable component supply and long-term obsolescence management.
Supply support for AT29BV010A-12TU 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
Atmel Corporation (now part of Microchip Technology) is a semiconductor manufacturer specializing in microcontrollers, Flash memory, and secure authentication ICs for industrial, automotive, and consumer applications.
The AT29BV010A-12TU belongs to Atmel's low-voltage Flash memory product line, designed specifically for in-system reprogrammability in space-constrained embedded systems operating from battery or regulated 3V supplies.
FAQ
What is the maximum read access time specified for the AT29BV010A-12TU?
The AT29BV010A-12TU has a maximum read access time of 120 ns, as indicated by the "-12" suffix in its part number. This parameter is guaranteed across the full industrial temperature range (−40°C to +85°C) and supply voltage range (2.7V to 3.6V), enabling direct drop-in replacement for 120 ns EPROMs in existing designs without timing margin adjustments.
Does the AT29BV010A-12TU require a high-voltage programming supply?
No, the AT29BV010A-12TU operates with a single 2.7V to 3.6V supply for both read and write operations. It does not require an external VPP voltage or charge pump circuitry. Programming is enabled solely through a software command sequence (AAh→55h→A0h), making it suitable for in-system reprogramming without additional power rails.
How many sectors does the AT29BV010A-12TU contain, and what is the size of each sector?
The AT29BV010A-12TU contains 1024 sectors, each consisting of 128 bytes. This sector structure enables granular firmware updates - only the modified 128-byte segment needs erasure and reprogramming, preserving data in unaffected sectors and minimizing update time and wear on the Flash array.
What is the purpose of the two boot blocks in the AT29BV010A-12TU?
The AT29BV010A-12TU includes two dedicated 8K-byte boot blocks - one at addresses 0x0000–0x1FFF (lower) and one at 0xE000–0xFFFF (upper). Each can be independently locked via software to prevent accidental erasure or programming, ensuring bootloader code remains intact during application firmware updates.
How is program completion detected on the AT29BV010A-12TU?
Program completion on the AT29BV010A-12TU can be detected using either DATA polling on I/O7 (complement of loaded data toggles until completion) or the toggle-bit method on I/O6 (bit toggles during programming and stabilizes upon completion). Both methods allow host software to monitor status without fixed timeouts or external hardware.
AT29BV010A-12TU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 32-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 1Mbit
- Memory Organization:
- 128K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 20ms
- Access Time:
- 120 ns
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TSOP
AT29BV010A-12TU FAQ
1.How can I place an order for AT29BV010A-12TU through Aetrix?
Please submit a Request for Quotation (RFQ) for AT29BV010A-12TU 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 AT29BV010A-12TU reliable?
The price and inventory of AT29BV010A-12TU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT29BV010A-12TU is usually 5 days.
3.What payment methods are accepted for AT29BV010A-12TU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT29BV010A-12TU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT29BV010A-12TU?
AT29BV010A-12TU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT29BV010A-12TU 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 AT29BV010A-12TU?
For technical support, including AT29BV010A-12TU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT29BV010A-12TU requirements.
6.How does Aetrix verify that AT29BV010A-12TU is sourced from the original manufacturer or authorized distributors?
All AT29BV010A-12TU 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 AT29BV010A-12TU meets industry standards.
7.What is the process for return or replacement of AT29BV010A-12TU?
All AT29BV010A-12TU units undergo pre-shipment inspection (PSI). If there is an issue with AT29BV010A-12TU, 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 AT29BV010A-12TU part is unused and in its original packaging.
Return procedure for AT29BV010A-12TU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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