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Microchip Technology AT29BV010A-12JC
- Part No.:
- AT29BV010A-12JC
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-LCC (J-Lead)
- Datasheet:
-
AT29BV010A-12JC.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:4,099
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Product details
Overview
AT29BV010A-12JC from Atmel is a 1 Mbit (128K × 8) single-supply Flash memory IC designed for in-system reprogrammability in embedded control and boot code storage applications. 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 dual 8K-byte boot blocks with independent lockout capability.
For engineers reviewing the AT29BV010A-12JC datasheet, AT29BV010A-12JC pinout, AT29BV010A-12JC application, or AT29BV010A-12JC equivalent, key selection considerations include its PLCC-32 package, 2.7V-only operation, software data protection sequence, DATA polling/Toggle Bit program status detection, and boot block lockout for secure firmware startup.
Technical Context
The AT29BV010A-12JC implements a sector-erase-and-program architecture with internal address/data latches for 128-byte loads, eliminating external buffering requirements 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.
It supports standard EPROM-like read timing with CE/OE dual-line control for bus contention avoidance, and uses I/O7 for DATA polling and I/O6 for Toggle Bit status indication-both usable at any point during program cycles. The device includes dedicated boot blocks at 0x0000–0x1FFF and 0xFE000–0xFFFF, each independently lockable via a seven-command enable algorithm.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (131,072 × 8), organized as 128K words × 8 bits - directly replaces EPROMs in legacy 8-bit microcontroller boot memory designs. |
| Read Access Time | 120 ns max - enables direct interface with 8-MHz Z80, 68K, or 8051 derivatives without wait states. |
| Supply Voltage | 2.7V to 3.6V single supply - eliminates need for 5V/12V programming voltages; compatible with battery-backed or low-voltage industrial systems. |
| Active Current | 15 mA typical at 5 MHz - supports low-power embedded operation while maintaining full-speed read performance. |
| Standby Current | 40 µA CMOS standby - suitable for always-on systems requiring minimal quiescent power draw. |
| Sector Size | 128 bytes per sector (1024 total sectors) - enables fine-grained firmware updates without erasing entire memory space. |
| Endurance | >10,000 program/erase cycles per sector - validated for field-upgradable firmware in industrial controllers and telecom modules. |
| Operating Temperature | 0°C to +70°C (Commercial) - specified for use in office equipment, consumer electronics, and non-automotive industrial panels. |
Pinout & Package
AT29BV010A-12JC is packaged in a 32-lead Plastic Leaded Chip Carrier (PLCC-32), JEDEC MS-016 compliant, with 1.27 mm pitch and body dimensions 12.42 mm × 14.99 mm. Pin 1 identifier is a corner notch; leads are J-bent with coplanarity ≤0.102 mm.
| 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 during programming. |
| CE | Chip Enable | Active-low chip select; must be low for read or write; high disables outputs and forces CMOS standby mode. |
| OE | Output Enable | Active-low output control; used with CE to gate data bus; high places I/O pins in high-impedance state. |
| WE | Write Enable | Active-low write strobe; controls byte loading during sector programming; must be synchronized with CE per AC timing specs. |
| I/O0–I/O7 | Bi-directional Data Bus | 8-bit multiplexed data path; I/O7 provides DATA polling status; I/O6 provides Toggle Bit status during program/erase. |
| VCC | Power Supply | 2.7V–3.6V main supply; internal voltage sensing prevents programming if VCC < 2.0V (typical). |
| GND | Ground Reference | Signal and power ground reference; decoupling capacitor required near VCC pin for stable operation. |
| NC | No Connect | Two unconnected pins (PLCC positions 13 and 31); must remain floating - no external connection permitted. |
Key Features
| Feature | Design Value |
|---|---|
| Single 2.7V–3.6V Supply Operation | Eliminates need for external high-voltage programming circuitry - simplifies PCB layout and reduces BOM count in battery-powered or low-voltage systems. |
| Software Data Protection | Three-byte unlock sequence (5555h→2AAAh→5555h) required before every sector program - prevents accidental writes during power transients or firmware bugs. |
| Dual Boot Block Lockout | Independent 8K-byte lockout for lower (0x0000–0x1FFF) and upper (0xFE000–0xFFFF) blocks - secures bootloader or recovery firmware against overwrite. |
| DATA Polling & Toggle Bit | I/O7 complement toggle and I/O6 state flip provide real-time, bus-compatible program completion detection - avoids fixed delays and enables deterministic firmware flow. |
| Internal Program Timer & Control | Automated erase-before-program and internal timing eliminate need for external timing components - ensures consistent 20 ms max sector program cycle across temperature/voltage. |
| CMOS/TTL Input Compatibility | Inputs accept 0–5.5V logic levels while operating at 2.7V–3.6V - allows direct interfacing with 5V microcontrollers without level shifters. |
Applications
| Industrial PLC Firmware Storage | Legacy PC BIOS Backup Memory |
|---|---|
|
Use Scenario: Storing configuration parameters and firmware update images in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Nonvolatile boot memory holding startup code and user-defined ladder logic; accessed during cold start and firmware patching via RS-485. Use Value: Sector-level reprogrammability enables field updates without removing the module; 40 µA standby current extends uptime in battery-buffered backup scenarios. |
Use Scenario: Providing secondary BIOS storage in desktop motherboards for fail-safe recovery after corrupted primary flash writes. IC Role / Device Role / Timing Role: Mirror boot ROM holding golden BIOS image; mapped to same address space as main SPI flash but accessed only during recovery mode. Use Value: Dual boot blocks allow one section to remain permanently locked, guaranteeing recoverable firmware even if main flash is erased or corrupted. |
| Embedded Medical Device Bootloader | Point-of-Sale Terminal Secure Boot Code |
|
Use Scenario: Hosting certified bootloader code in Class II medical instruments requiring FDA-compliant firmware integrity and update traceability. IC Role / Device Role / Timing Role: Read-only execution memory for initial secure boot chain; verified prior to loading application firmware from external storage. Use Value: Hardware-enforced VCC sense and noise filtering prevent unintended writes during ESD events or power brownouts - critical for regulatory compliance. |
Use Scenario: Storing payment-certified boot code in PCI-DSS compliant retail terminals where tamper resistance and firmware authenticity are mandatory. IC Role / Device Role / Timing Role: Immutable root-of-trust memory storing cryptographic keys and signature verification routines executed before OS load. Use Value: Independent boot block lockout ensures bootloader remains unmodified across thousands of transaction cycles - meeting EMVCo and PCI PTS requirements. |
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, 3.3V-only, TSOP-32 package; lacks boot block lockout and uses different software unlock sequence. | Higher speed but no hardware-protected boot sectors - unsuitable where bootloader immutability is required. | Select when faster read timing is critical and boot security is managed externally via MCU firmware. |
| MX29LV160CBTI-70G | 16 Mbit density, 70 ns access, 3.0V–3.6V supply; includes CFI-compliant command set and 16/64K-byte boot sectors. | Higher capacity and industry-standard CFI interface - better for scalable designs but over-specified for 1 Mbit needs. | Choose for future-proofing or migration paths where board layout supports larger TSOP footprint and firmware supports CFI commands. |
Compared with SST39VF010-70-4C-NHE and MX29LV160CBTI-70G, the AT29BV010A-12JC offers uniquely balanced trade-offs: guaranteed 120 ns timing stability across voltage/temperature, proven boot block lockout for safety-critical startups, and PLCC-32 compatibility with legacy socketed designs - making it optimal for cost-sensitive, reliability-focused embedded upgrades.
Availability
AT29BV010A-12JC is available at Aetrix Electronics and suitable for industrial control systems, legacy computer BIOS backup, and embedded medical device boot memory requiring stable component supply and long-term obsolescence management.
Supply support for AT29BV010A-12JC 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 fabless semiconductor company specializing in microcontrollers, nonvolatile memory, and secure authentication ICs for industrial, automotive, and consumer markets.
The AT29BV010A-12JC belongs to Atmel's Battery-Voltage™ Flash family, engineered for reliable in-system reprogramming in low-voltage embedded systems where 5V infrastructure is unavailable or undesirable.
FAQ
What is the maximum read access time specification for AT29BV010A-12JC?
The AT29BV010A-12JC has a guaranteed maximum read access time of 120 ns under commercial temperature conditions (0°C to +70°C) and VCC = 2.7V–3.6V. This value is tested and characterized per the AC Read Characteristics table in the official datasheet (Rev. 0519D), and applies to both PLCC and TSOP packages with identical timing behavior.
Does AT29BV010A-12JC support true 5V-tolerant inputs?
Yes - the AT29BV010A-12JC accepts input voltages up to 5.5V on address (A0–A16) and control (CE, OE, WE) pins while operating from a 2.7V–3.6V VCC supply. This allows direct interfacing with 5V microcontrollers without level-shifting circuitry, though I/O lines are limited to 0–(VCC + 0.6V) and must not exceed 4.2V at 3.6V VCC.
How does the boot block lockout feature work on AT29BV010A-12JC?
The AT29BV010A-12JC contains two 8K-byte boot blocks (lower: 0x0000–0x1FFF; upper: 0xFE000–0xFFFF), each independently lockable via a seven-command software sequence. Once enabled, the locked block becomes permanently read-only - neither erasable nor programmable - and chip erase is disabled. Lockout status is readable via software product identification mode at addresses 00002H and 1FFF2H.
Can AT29BV010A-12JC be programmed using standard EPROM programmers?
No - the AT29BV010A-12JC requires in-system programming via its parallel interface and specific software command sequences (e.g., AAh→55h→A0h unlock). It is not compatible with conventional EPROM UV-erasable or 12V-programmable programmers. Programming must occur with VCC applied and follow strict timing windows (e.g., 150 µs between byte loads) as defined in the AC Byte Load Characteristics table.
What is the endurance rating for AT29BV010A-12JC sector programming cycles?
The AT29BV010A-12JC is rated for more than 10,000 program/erase cycles per sector under standard operating conditions (VCC = 2.7V–3.6V, TA = 0°C to +70°C). This endurance is measured per JEDEC standard JESD22-A117 and reflects typical wear-out behavior - individual sectors may exceed this count, but system-level firmware should implement wear leveling if exceeding 10k cycles is anticipated.
AT29BV010A-12JC 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:
- 0°C ~ 70°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-PLCC (13.97x11.43)
AT29BV010A-12JC FAQ
1.How can I place an order for AT29BV010A-12JC through Aetrix?
Please submit a Request for Quotation (RFQ) for AT29BV010A-12JC 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-12JC reliable?
The price and inventory of AT29BV010A-12JC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT29BV010A-12JC is usually 5 days.
3.What payment methods are accepted for AT29BV010A-12JC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT29BV010A-12JC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT29BV010A-12JC?
AT29BV010A-12JC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT29BV010A-12JC 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-12JC?
For technical support, including AT29BV010A-12JC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT29BV010A-12JC requirements.
6.How does Aetrix verify that AT29BV010A-12JC is sourced from the original manufacturer or authorized distributors?
All AT29BV010A-12JC 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-12JC meets industry standards.
7.What is the process for return or replacement of AT29BV010A-12JC?
All AT29BV010A-12JC units undergo pre-shipment inspection (PSI). If there is an issue with AT29BV010A-12JC, 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-12JC part is unused and in its original packaging.
Return procedure for AT29BV010A-12JC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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