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Microchip Technology AT29BV010A-15JU
- Part No.:
- AT29BV010A-15JU
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-LCC (J-Lead)
- Datasheet:
-
AT29BV010A-15JU.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,039
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Product details
Overview
AT29BV010A-15JU from Microchip Technology (formerly Atmel) is a 1-Mbit (128K × 8) single-supply 2.7V–3.6V in-system Flash memory IC used for nonvolatile code and data storage in embedded microcontroller systems. It delivers 150 ns read access time, supports sector-based reprogramming with 1024 × 128-byte sectors, and features dual 8K-byte boot blocks with independent programming lockout. It is commonly deployed in industrial control firmware storage and legacy BIOS/UEFI update modules.
For engineers reviewing the AT29BV010A-15JU datasheet, AT29BV010A-15JU pinout, AT29BV010A-15JU application, or AT29BV010A-15JU equivalent, key selection considerations include its 32-lead PLCC package, software-controlled sector erase-and-program architecture, DATA polling and toggle-bit program status detection, and compatibility with 2.7V–3.6V logic-level microprocessor buses.
Technical Context
The AT29BV010A-15JU implements a CMOS-based Flash memory array organized as 131,072 words × 8 bits, accessed via standard parallel address/data bus interface. Its operation relies on software command sequences (e.g., 0x5555/0x2AAA/0xA0) to enable sector programming and boot block lockout - no external high-voltage supply is required.
It uses internal latching of 128-byte sector data at microprocessor speed, followed by autonomous erase-and-program execution controlled by an on-chip timer. Program completion is signaled via I/O7 DATA polling or I/O6 toggle-bit behavior, both usable at any point during the up-to-20 ms internal cycle.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (131,072 × 8), sufficient for small firmware images or configuration tables |
| Read Access Time | 150 ns max - determines minimum bus cycle timing for 8-bit microcontrollers |
| Supply Voltage Range | 2.7V to 3.6V - enables direct connection to 3.3V logic rails without level shifting |
| Active Current | 15 mA max at 5 MHz - defines power budget impact during active read operations |
| Standby Current | 50 µA CMOS - supports low-power sleep modes in battery-backed systems |
| Sector Size | 128 bytes × 1024 sectors - enables fine-grained firmware updates without full chip erase |
| Endurance | >10,000 program/erase cycles per sector - qualifies for field-upgradable embedded applications |
| Boot Blocks | Two 8K-byte blocks (0x0000–0x1FFF and 0xE000–0xFFFF) with independent lockout - protects bootloader code from accidental overwrite |
Pinout & Package
AT29BV010A-15JU is packaged in a 32-lead Plastic J-Leaded Chip Carrier (PLCC), JEDEC MS-016 variant AE, with 1.27 mm pitch and 12.45 mm × 14.95 mm body size. Pin 1 is marked by a corner notch.
| 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 |
| I/O0–I/O7 | Bi-directional Data Bus | 8-bit parallel data path for reads, writes, and command loading; TTL/CMOS compatible |
| CE | Chip Enable | Active-low chip select; must be low for read/write; inhibits programming when high |
| OE | Output Enable | Active-low output control; places I/O pins in high-Z when high; required high during programming |
| WE | Write Enable | Active-low write strobe; latches address/data on falling edge; controls byte load timing |
| VCC | Power Supply | Single 2.7V–3.6V supply; powers core logic and memory array |
| GND | Ground | Reference return for all signals and power; requires low-impedance PCB connection |
| NC | No Connect | Unbonded pins (positions 13, 20, 31); must remain unconnected per design |
Key Features
| Feature | Design Value |
|---|---|
| Single 2.7V–3.6V Supply Operation | Eliminates need for dedicated 5V or 12V programming voltage rails in system design |
| Software Data Protection | Three-command unlock sequence prevents accidental writes during power transitions or noise events |
| Internal Sector Latching | 128-byte sector data captured at microprocessor speed, freeing address/data bus for concurrent tasks |
| DATA Polling & Toggle Bit | Dual asynchronous program status detection methods reduce CPU polling overhead and simplify driver code |
| Boot Block Lockout | Independent hardware-enforced write protection for two 8K-byte regions - critical for secure bootloader integrity |
| Green Pb/Halide-Free Packaging | Complies with RoHS Directive 2011/65/EU without requiring process or layout changes |
Applications
| Industrial PLC Firmware Storage | Legacy Embedded BIOS Modules |
|---|---|
Use Scenario: Storing firmware and configuration parameters in programmable logic controllers operating in factory-floor environments with wide temperature swings and electrical noise. IC Role / Device Role / Timing Role: Nonvolatile code storage device interfaced directly to an 8-bit or 16-bit microcontroller bus; provides deterministic 150 ns read latency for real-time instruction fetch. Use Value: Enables field firmware upgrades without removing the module; boot block lockout prevents corruption of safety-critical startup routines during remote updates. | Use Scenario: Holding initialization code and hardware abstraction layer (HAL) in legacy x86-compatible embedded motherboards where space and voltage headroom are constrained. IC Role / Device Role / Timing Role: Parallel Flash memory mapped into CPU address space as boot ROM; operates at 3.3V with TTL-compatible signaling to avoid level-shifter components. Use Value: Reduces BOM count and board area versus EPROM alternatives; software sector erase allows selective patching of BIOS features without full reflash. |
| Point-of-Sale Terminal Bootloader | Medical Device Configuration Memory |
Use Scenario: Securing boot code in retail payment terminals that require FIPS-compliant firmware integrity and over-the-air update capability. IC Role / Device Role / Timing Role: Protected boot memory with independent lockout for lower 8K-byte region; accessed during cold start before application code loads. Use Value: Prevents unauthorized modification of cryptographic keys and signature verification routines; endurance >10,000 cycles supports multi-year field deployment with periodic security patches. | Use Scenario: Retaining calibration data, sensor offsets, and user preferences in portable diagnostic equipment powered by rechargeable batteries. IC Role / Device Role / Timing Role: Low-power nonvolatile storage element; draws only 50 µA in standby to extend battery life between recalibrations. Use Value: Eliminates need for backup supercapacitors or coin cells; 2.7V minimum VCC ensures reliable operation down to end-of-battery discharge. |
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 read access; 3.0V–3.6V supply; 512 sectors × 256 bytes; no boot block lockout | Lacks dedicated protected boot regions; higher speed but less firmware security | Choose when faster read performance is prioritized over bootloader protection |
| MX29LV010CTC-90G | 90 ns read access; 3.0V–3.6V supply; 64 sectors × 16K bytes; supports CFI query mode | Coarser sector granularity limits update flexibility; CFI simplifies driver portability across densities | Prefer for designs requiring standardized flash interface abstraction layers |
Compared with SST39VF010-70-4C-NHE and MX29LV010CTC-90G, the AT29BV010A-15JU trades raw speed for finer 128-byte sector control and hardware-enforced boot block protection - making it better suited for safety-critical or field-upgradeable firmware where code integrity outweighs marginal access-time gains.
Availability
AT29BV010A-15JU is available at Aetrix Electronics and suitable for industrial PLC firmware storage, legacy BIOS modules, point-of-sale terminal bootloaders, and medical device configuration memory requiring stable component supply and long-term lifecycle support.
Supply support for AT29BV010A-15JU 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 its Flash memory product lines with full documentation and long-term support commitments.
The AT29BV010A-15JU belongs to Atmel's low-voltage parallel Flash family, designed specifically for in-system reprogrammability in resource-constrained 8-bit and 16-bit embedded systems without external high-voltage circuitry.
FAQ
What is the maximum read access time specified for the AT29BV010A-15JU?
The AT29BV010A-15JU has a maximum read access time of 150 ns, as confirmed by its ordering suffix "-15" and the AC Read Characteristics table in the official datasheet. This value applies under industrial temperature conditions (−40°C to +85°C) with VCC = 2.7V–3.6V and defines the worst-case delay from address valid to stable data on I/O0–I/O7. The AT29BV010A-15JU achieves this timing while maintaining full compatibility with standard 8-bit microprocessor bus protocols.
Does the AT29BV010A-15JU require a high-voltage supply for programming?
No, the AT29BV010A-15JU does not require a high-voltage supply for programming. It operates entirely from a single 2.7V–3.6V VCC rail, using internally generated voltages for Flash cell manipulation. Programming is enabled only after issuing the documented three-byte software unlock sequence (0x5555/0x2AAA/0xA0) to prevent accidental writes. This eliminates external HV generators and simplifies system-level power design for the AT29BV010A-15JU.
How many sectors does the AT29BV010A-15JU have, and what is the size of each sector?
The AT29BV010A-15JU contains 1024 sectors, each 128 bytes in size. This sector structure is fixed and explicitly defined in the device description and sector program operation section of the datasheet. Each sector must be loaded entirely with valid data before internal programming begins; any unloaded byte within the sector becomes indeterminate. This 128-byte granularity enables precise firmware patching and is a defining characteristic of the AT29BV010A-15JU's architecture.
What package type is used for the AT29BV010A-15JU?
The AT29BV010A-15JU uses a 32-lead Plastic J-Leaded Chip Carrier (PLCC) package, designated "32J" in Atmel's ordering information. Its mechanical dimensions conform to JEDEC standard MS-016, variation AE, with a body size of 12.45 mm × 14.95 mm and 1.27 mm lead pitch. Pin 1 is identified by a corner notch, and the package is RoHS-compliant with Pb/halide-free construction - consistent across all units of the AT29BV010A-15JU.
Can the AT29BV010A-15JU be used in new designs?
The AT29BV010A-15JU is marked "Not Recommended for New Design" in the original Atmel datasheet (0519F–FLASH–9/08), indicating it has been superseded by newer Flash families such as the AT25 series SPI Flash or newer parallel devices with enhanced density and reliability. While fully functional and supported for legacy repair and continuity, Aetrix Electronics recommends evaluating modern alternatives for new projects. However, the AT29BV010A-15JU remains available for existing designs requiring exact form-fit-function replacement.
AT29BV010A-15JU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 32-LCC (J-Lead)
- Packaging:
- Tube
- 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:
- 150 ns
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-PLCC (13.97x11.43)
AT29BV010A-15JU FAQ
1.How can I place an order for AT29BV010A-15JU through Aetrix?
Please submit a Request for Quotation (RFQ) for AT29BV010A-15JU 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-15JU reliable?
The price and inventory of AT29BV010A-15JU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT29BV010A-15JU is usually 5 days.
3.What payment methods are accepted for AT29BV010A-15JU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT29BV010A-15JU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT29BV010A-15JU?
AT29BV010A-15JU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT29BV010A-15JU 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-15JU?
For technical support, including AT29BV010A-15JU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT29BV010A-15JU requirements.
6.How does Aetrix verify that AT29BV010A-15JU is sourced from the original manufacturer or authorized distributors?
All AT29BV010A-15JU 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-15JU meets industry standards.
7.What is the process for return or replacement of AT29BV010A-15JU?
All AT29BV010A-15JU units undergo pre-shipment inspection (PSI). If there is an issue with AT29BV010A-15JU, 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-15JU part is unused and in its original packaging.
Return procedure for AT29BV010A-15JU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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