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Microchip Technology AT29BV010A-12TU-T
- Part No.:
- AT29BV010A-12TU-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT29BV010A-12TU-T.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,863
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Product details
Overview
AT29BV010A-12TU-T from Microchip Technology (formerly Atmel) is a 1-Mbit (128K × 8) single-supply 2.7V–3.6V Flash memory IC used for nonvolatile code and data storage in embedded systems. It delivers 120 ns read access time, supports sector-based reprogramming with 1024 × 128-byte sectors, and features dual 8K-byte boot blocks with independent programming lockout - commonly deployed in microcontroller boot loaders and firmware update storage.
For engineers reviewing the AT29BV010A-12TU-T datasheet, AT29BV010A-12TU-T pinout, AT29BV010A-12TU-T application, or AT29BV010A-12TU-T equivalent, key selection criteria include its 2.7V–3.6V VCC range, software data protection sequence, DATA polling/toggle bit program status detection, and TSOP-32 package compatibility with legacy 8-bit bus interfaces.
Technical Context
The AT29BV010A-12TU-T implements a sector-erase-and-program architecture where each 128-byte sector is erased and written in a single internal cycle, eliminating need for external erase commands. Its address latching logic captures A0–A16 and I/O0–I/O7 at microprocessor speed during byte load, freeing the bus for concurrent operations.
Hardware protection includes VCC sense (<2.0V inhibits programming), 10 ms power-on delay, OE/CE/WE inhibit logic, and 15 ns noise filtering on control inputs. Input levels tolerate 0–5.5V on address/control pins while I/O pins are limited to 0–(VCC + 0.6V), enabling mixed-voltage system interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (131,072 × 8), organized as 128K words × 8 bits - fits compact boot code and configuration tables. |
| Read Access Time | 120 ns max - enables direct execution from flash in 8 MHz–12 MHz microcontroller systems without wait states. |
| VCC Supply Range | 2.7V to 3.6V - compatible with single Li-ion battery or regulated 3.3V rails, no charge pump required. |
| Active Current | 15 mA at 5 MHz - supports low-power operation in portable or energy-constrained devices. |
| Standby Current | 50 µA CMOS standby - reduces quiescent power in always-on embedded controllers. |
| Sector Size | 128 bytes per sector (1024 total) - balances granularity for partial updates against overhead of sector management. |
| Endurance | >10,000 write/erase cycles per sector - sufficient for field firmware updates over 5+ years of typical industrial use. |
Pinout & Package
AT29BV010A-12TU-T is packaged in a 32-lead Thin Small Outline Package (TSOP Type I, 8 × 20 mm), JEDEC MO-142 compliant, with gull-wing leads and pin 1 identifier marked on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus supporting full 128K-word addressing; A0–A6 select byte within 128-byte sector during programming. |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit parallel interface for read/write; outputs high-impedance when CE or OE is high to prevent bus contention. |
| CE | Chip Enable | Active-low chip select; must be low for read or write; high disables device and forces standby current mode. |
| OE | Output Enable | Active-low output control; used with CE to gate data output; high disables outputs (high-Z) regardless of CE state. |
| WE | Write Enable | Active-low write strobe; initiates byte load during programming; must be high during read operations. |
| VCC | Power Supply | 2.7V–3.6V supply input; powers core logic and I/O buffers; internal VCC sense prevents programming below ~2.0V. |
| GND | Ground | Reference for all signals and power; requires low-impedance connection to minimize noise during sector programming. |
| NC | No Connect | Two unconnected pins (A9 and one adjacent to VCC in TSOP layout); must remain floating per datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| Software Data Protection | Three-step unlock sequence (AAh→55h→A0h) required before any sector programming - prevents accidental writes during power transients or noise events. |
| Boot Block Lockout | Independent 8K-byte upper and lower boot blocks can be permanently locked via 7-command algorithm - secures bootloader code from overwrite. |
| DATA Polling & Toggle Bit | I/O7 complement indicates active programming; I/O6 toggling provides hardware-agnostic end-of-cycle detection - eliminates need for fixed delays in host firmware. |
| Single-Cycle Sector Reprogram | Internal erase + program completes automatically after 128-byte load - simplifies host driver design and reduces CPU intervention time. |
| Green Packaging | Pb/Halide-free TSOP-32 package - meets RoHS Directive 2011/65/EU and facilitates compliance in consumer and industrial shipments. |
Applications
| Industrial PLC Firmware Storage | Medical Device Bootloader Memory |
|---|---|
Use Scenario: Storing firmware images and calibration data in programmable logic controllers operating in factory-floor environments with wide temperature swings and EMI exposure. IC Role / Device Role / Timing Role: Nonvolatile code storage with sector-level update capability; 120 ns access supports real-time scan cycle execution without external wait-state generation. Use Value: Dual boot blocks allow safe A/B firmware swapping; software protection prevents corruption during brown-out conditions common in industrial power distribution. | Use Scenario: Holding certified bootloader and safety-critical initialization routines in Class II medical instruments requiring traceable firmware revisions and tamper resistance. IC Role / Device Role / Timing Role: Secure boot memory with permanent lockout for first 8K bytes; operates reliably across -40°C to +85°C case temperature range per industrial specification. Use Value: Boot block lockout ensures bootloader integrity; >10,000 endurance cycles support regulatory-mandated field updates over product lifetime. |
| Automotive Body Control Module | Point-of-Sale Terminal Configuration Storage |
Use Scenario: Retaining vehicle-specific configuration parameters (e.g., door lock logic, lighting profiles) in body control units exposed to automotive-grade thermal and vibration stress. IC Role / Device Role / Timing Role: Parameter EEPROM replacement with faster 120 ns reads and lower 50 µA standby current than legacy serial EEPROMs. Use Value: Single 3.3V supply eliminates level-shifting; sector architecture enables selective parameter updates without erasing entire configuration space. | Use Scenario: Storing localized language packs, tax tables, and merchant-specific settings in retail terminals deployed globally with infrequent but critical firmware patches. IC Role / Device Role / Timing Role: Field-upgradable nonvolatile memory interfaced directly to 8-bit microcontrollers via parallel bus; TSOP-32 footprint matches legacy board layouts. Use Value: Software data protection prevents unauthorized modification; 20 ms max sector program time enables fast over-the-air update rollouts during maintenance windows. |
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 only, no boot block lockout, 100K endurance cycles | Lacks hardware-secured boot blocks; requires external voltage regulation outside 2.7V–3.0V range | Choose when faster read timing is critical and boot security is managed externally. |
| MX29LV160DBTI-70G | 16 Mbit density, 70 ns access, 2.7V–3.6V, 16K/64K boot sectors, CFI-compliant command set | Higher density and standardized CFI interface simplify migration to larger code footprints | Choose for scalable designs needing future capacity headroom and standardized programming toolchains. |
Compared with SST39VF010-70-4C-NHE, AT29BV010A-12TU-T offers superior low-voltage operation down to 2.7V and integrated boot block security; versus MX29LV160DBTI-70G, it provides smaller footprint and simpler command set for cost-sensitive, fixed-function applications.
Availability
AT29BV010A-12TU-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device bootloader memory, and automotive body control module configuration requiring stable component supply and long-term lifecycle support.
Supply support for AT29BV010A-12TU-T 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
Microchip Technology acquired Atmel in 2016 and maintains full support for legacy Atmel Flash products including the AT29BV010A series.
The AT29BV010A belongs to Atmel's Low Voltage Flash family, designed specifically for in-system reprogrammability in resource-constrained embedded systems using standard 8-bit parallel buses and single-supply operation.
FAQ
What is the maximum operating temperature range for the AT29BV010A-12TU-T?
The AT29BV010A-12TU-T is rated for industrial temperature operation from –40°C to +85°C case temperature. This range is validated per the datasheet's DC and AC operating specifications and applies to both read and sector programming functions under specified VCC and timing conditions. The TSOP-32 package's thermal characteristics support reliable operation within this envelope when mounted per JEDEC MO-142 guidelines.
Does the AT29BV010A-12TU-T require high-voltage programming signals?
No, the AT29BV010A-12TU-T does not require high-voltage programming signals. It operates with a single 2.7V–3.6V supply for both read and write operations. Programming is enabled only after executing the three-byte software unlock sequence (AAh→55h→A0h), and internal circuitry handles sector erase and program timing - eliminating need for external 12V or 5V programming voltages.
How is program completion detected on the AT29BV010A-12TU-T?
Program completion on the AT29BV010A-12TU-T is detected using either DATA polling or the toggle bit method. During programming, reading the last loaded byte returns the complement of I/O7; when true data appears, programming is complete. Alternatively, I/O6 toggles between 0 and 1 during programming and stabilizes upon completion - both methods allow host firmware to avoid fixed delays and respond dynamically to actual device state.
Can the boot blocks of the AT29BV010A-12TU-T be unlocked after programming lockout is enabled?
No, the boot block programming lockout feature on the AT29BV010A-12TU-T is irreversible once activated. The seven-command enable algorithm permanently disables further writes or erases to the selected 8K-byte block. Reading addresses 00002H (lower block) or 1FFF2H returns FFh to confirm lockout status. This one-time fuse-like behavior ensures bootloader integrity in safety-critical applications.
Is the AT29BV010A-12TU-T pin-compatible with other 32-lead Flash memory devices?
The AT29BV010A-12TU-T uses a standard 32-lead TSOP Type I footprint (8 × 20 mm) with JEDEC MO-142 BD compliance, matching mechanical dimensions of many 1M-bit parallel Flash devices. However, electrical pin functions (e.g., WE vs. OE timing, software unlock sequence, sector size) differ across vendors - direct pin-to-pin replacement requires verification of command set, timing, and protection logic, not just physical layout.
AT29BV010A-12TU-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 32-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tape & Reel (TR)
- 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-T FAQ
1.How can I place an order for AT29BV010A-12TU-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT29BV010A-12TU-T 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-T reliable?
The price and inventory of AT29BV010A-12TU-T 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-T is usually 5 days.
3.What payment methods are accepted for AT29BV010A-12TU-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT29BV010A-12TU-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT29BV010A-12TU-T?
AT29BV010A-12TU-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT29BV010A-12TU-T 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-T?
For technical support, including AT29BV010A-12TU-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT29BV010A-12TU-T requirements.
6.How does Aetrix verify that AT29BV010A-12TU-T is sourced from the original manufacturer or authorized distributors?
All AT29BV010A-12TU-T 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-T meets industry standards.
7.What is the process for return or replacement of AT29BV010A-12TU-T?
All AT29BV010A-12TU-T units undergo pre-shipment inspection (PSI). If there is an issue with AT29BV010A-12TU-T, 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-T part is unused and in its original packaging.
Return procedure for AT29BV010A-12TU-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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