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Microchip Technology AT29BV010A-12JI
- Part No.:
- AT29BV010A-12JI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-LCC (J-Lead)
- Datasheet:
-
AT29BV010A-12JI.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,616
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Product details
Overview
AT29BV010A-12JI from Atmel is a 1 Mbit (128K × 8) single-supply Flash memory IC designed for in-system reprogrammability in embedded boot code storage. It operates from 2.7V to 3.6V, delivers 120 ns read access time, supports sector-based programming with 1024 × 128-byte sectors, and features two 8K-byte boot blocks with independent lockout. Used in industrial microcontroller boot loaders requiring reliable nonvolatile code storage.
For engineers reviewing the AT29BV010A-12JI datasheet, AT29BV010A-12JI pinout, AT29BV010A-12JI application, or AT29BV010A-12JI equivalent, key selection criteria include its 120 ns read timing, software data protection sequence, boot block lockout capability, CMOS standby current of 40 µA, and PLCC-32 industrial-grade packaging.
Technical Context
The AT29BV010A-12JI implements a sector-erase-and-program architecture with internal address/data latches for 128-byte loads, eliminating external buffering during reprogramming. Its software data protection requires a three-byte command sequence (AAh/55h/A0h) before any sector write, and hardware safeguards include VCC sense below 2.0V and noise filtering on WE/CE inputs.
Boot block lockout is enabled via a seven-command algorithm targeting either the lower 8K (0x0000–0x1FFF) or upper 8K (0x1E000–0x1FFFF) region, permanently disabling erase/write in that block. Data polling (I/O7 complement) and toggle-bit detection (I/O6 toggling) provide real-time program cycle status without requiring external timers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (131,072 × 8), organized as 128K words × 8 bits - directly maps to 16-bit microcontroller data bus with byte-wide access. |
| Read Access Time | 120 ns max - enables direct interface with 8 MHz microcontrollers without wait states. |
| Supply Voltage | 2.7V to 3.6V single supply - compatible with battery-backed or low-voltage industrial power rails. |
| Active Current | 15 mA at 5 MHz - limits thermal load in compact enclosures during firmware reads. |
| Standby Current | 40 µA CMOS - supports ultra-low-power sleep modes in battery-operated systems. |
| Sector Size | 1024 sectors × 128 bytes - allows fine-grained firmware updates without erasing full device. |
| Endurance | >10,000 program/erase cycles per sector - sufficient for field-upgradable embedded applications. |
Pinout & Package
AT29BV010A-12JI uses a 32-lead Plastic Leaded Chip Carrier (PLCC-32) package, rated for industrial temperature range (−40°C to +85°C). Pin 1 identifier is marked by a corner notch; body dimensions are 12.45 mm × 14.95 mm × 3.35 mm (max height).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus supporting full 131,072-word addressing; A0–A6 select byte within 128-byte sector. |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit parallel interface; outputs drive TTL/CMOS loads; inputs tolerate up to 5.5V when VCC = 2.7–3.6V. |
| CE | Chip Enable | Active-low chip select; must be low for read/write; high forces outputs to high-impedance state. |
| OE | Output Enable | Active-low output control; used with CE to prevent bus contention during shared-memory access. |
| WE | Write Enable | Active-low write strobe; initiates byte load or program cycle when CE is low and OE is high. |
| VCC | Power Supply | 2.7–3.6V main supply; internal voltage regulation ensures stable programming across range. |
| GND | Ground | Reference for all I/O and internal logic; decoupling capacitor required near pin 16. |
| NC | No Connect | Pins 12 and 31 are unconnected; must remain floating - no pull-up/down or routing. |
Key Features
| Feature | Design Value |
|---|---|
| Software Data Protection | Three-byte unlock sequence (5555h/2AAAh/5555h) required before every sector program - prevents accidental writes during power transients or noise events. |
| Boot Block Lockout | Independent 8K-byte lockout for lower (0x0000–0x1FFF) and upper (0x1E000–0x1FFFF) regions - secures bootloader code against corruption during application firmware updates. |
| Data Polling & Toggle Bit | I/O7 complement and I/O6 toggling provide asynchronous, bus-compatible program completion detection - eliminates need for fixed delay timers in host firmware. |
| Single-Cycle Sector Reprogram | Internal erase-and-program automation after 128-byte load - reduces host CPU overhead and guarantees atomic sector updates. |
| Hardware Program Inhibit | VCC sense, 10 ms power-on delay, and noise filtering on WE/CE - ensures robust operation in electrically noisy industrial environments. |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Code Retention |
|---|---|
|
Use Scenario: Storing boot firmware and configuration parameters in programmable logic controllers deployed in factory automation cabinets with wide ambient temperature swings. IC Role / Device Role / Timing Role: Nonvolatile boot memory mapped to microcontroller address space; provides deterministic 120 ns read latency for fast system startup. Use Value: Industrial temperature rating (−40°C to +85°C) and 40 µA standby current ensure reliable operation during extended idle periods without battery drain. |
Use Scenario: Holding certified bootloader and safety-critical initialization routines in portable diagnostic equipment requiring regulatory-compliant firmware integrity. IC Role / Device Role / Timing Role: Secure boot memory with programmable lockout; isolates verified bootloader from application update processes. Use Value: Two independently lockable 8K boot blocks enable dual-firmware architectures where one block remains immutable while the other supports field upgrades. |
| Telecom Remote Node Configuration | Automotive Body Control Module (BCM) |
|
Use Scenario: Storing network stack configuration and calibration data in outdoor telecom repeaters exposed to humidity and thermal cycling. IC Role / Device Role / Timing Role: In-system reprogrammable Flash memory accessed via SPI-to-parallel bridge; supports remote firmware patching over backhaul links. Use Value: Sector-based 128-byte programming minimizes update window and reduces risk of corruption during intermittent connectivity. |
Use Scenario: Hosting vehicle-specific calibration tables and CAN protocol handlers in body control modules operating under automotive electrical conditions. IC Role / Device Role / Timing Role: Boot memory interfaced to 8-bit MCU; withstands load dump transients via 5.5V-tolerant address/control inputs. Use Value: 2.7–3.6V single supply eliminates need for auxiliary regulators, simplifying power design in space-constrained BCM PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX29LV100CTTC-12G | 1 Mbit, 120 ns, 3.0–3.6V supply, TSOP-48 package - lacks boot block lockout and software data protection sequence. | Requires external hardware write protection; not suitable for secure bootloader storage. | Select only if board layout accommodates TSOP-48 and security requirements are minimal. |
| SST39VF010-120-4C-NHE | 1 Mbit, 120 ns, 3.0–3.6V, PLCC-32 - includes byte-level programming but no dedicated boot block lockout feature. | Supports partial updates without sector erase, but cannot enforce immutable bootloader regions. | Prefer when frequent small-code patches are needed, but avoid where bootloader integrity is mandated. |
Compared with MX29LV100CTTC-12G and SST39VF010-120-4C-NHE, the AT29BV010A-12JI uniquely combines industrial-temperature PLCC-32 packaging, dual boot block lockout, and mandatory software unlock - making it the only choice for safety-critical embedded boot memory requiring tamper-resistant firmware partitioning.
Availability
AT29BV010A-12JI is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device boot code retention, and automotive body control module applications requiring stable component supply across extended lifecycle commitments.
Supply support for AT29BV010A-12JI 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 devices, with headquarters in San Jose, California.
The AT29BV010A product line delivers single-supply, low-voltage Flash memory optimized for embedded boot code storage in industrial and automotive systems where reliability, security, and in-system reprogrammability are critical.
FAQ
What is the operating temperature range for AT29BV010A-12JI?
The AT29BV010A-12JI is rated for industrial temperature operation from −40°C to +85°C. This specification is confirmed in the Ordering Information table and DC Operating Range section of the datasheet. The "I" suffix in the part number explicitly denotes industrial grade, distinguishing it from commercial-grade variants like AT29BV010A-12JC. Thermal performance is validated across this full range for both read and program operations.
Does AT29BV010A-12JI require high-voltage programming signals?
No, AT29BV010A-12JI does not require high-voltage programming signals. It operates with a single 2.7V to 3.6V supply for both read and write functions. Programming is initiated using standard logic-level WE and CE signals after entering the software data protection sequence. The device includes internal voltage regulation and VCC-sense circuitry to ensure safe operation without external 12V programming supplies.
How many sectors does AT29BV010A-12JI have, and what is the size of each sector?
The AT29BV010A-12JI contains 1024 sectors, each 128 bytes in size. This is explicitly stated in the Features section and confirmed in the Description: "1024 Sectors (128 Bytes/Sector)". Sector addressing uses A7–A16, while A0–A6 select the byte within the sector. All 128 bytes of a sector must be loaded before internal programming begins.
Can the boot blocks in AT29BV010A-12JI be unlocked after programming lockout is enabled?
No, the boot block programming lockout in AT29BV010A-12JI is irreversible once activated. The datasheet states: "Once the programming lockout feature has been activated, the data in that block can no longer be erased or programmed". Activation requires a seven-command algorithm, and no exit or unlock sequence is defined. This one-way security mechanism ensures bootloader integrity in certified systems.
What package type is used for AT29BV010A-12JI?
AT29BV010A-12JI uses a 32-lead Plastic Leaded Chip Carrier (PLCC-32) package, designated as "32J" in the Ordering Information table. The mechanical drawing (page 13) confirms dimensions including 12.46 mm × 14.96 mm body size and J-lead profile. This surface-mount package supports reflow soldering and is distinct from the TSOP-32 option (32T) offered for other variants.
AT29BV010A-12JI 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:
- 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-PLCC (13.97x11.43)
AT29BV010A-12JI FAQ
1.How can I place an order for AT29BV010A-12JI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT29BV010A-12JI 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-12JI reliable?
The price and inventory of AT29BV010A-12JI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT29BV010A-12JI is usually 5 days.
3.What payment methods are accepted for AT29BV010A-12JI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT29BV010A-12JI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT29BV010A-12JI?
AT29BV010A-12JI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT29BV010A-12JI 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-12JI?
For technical support, including AT29BV010A-12JI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT29BV010A-12JI requirements.
6.How does Aetrix verify that AT29BV010A-12JI is sourced from the original manufacturer or authorized distributors?
All AT29BV010A-12JI 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-12JI meets industry standards.
7.What is the process for return or replacement of AT29BV010A-12JI?
All AT29BV010A-12JI units undergo pre-shipment inspection (PSI). If there is an issue with AT29BV010A-12JI, 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-12JI part is unused and in its original packaging.
Return procedure for AT29BV010A-12JI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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