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Microchip Technology AT29LV010A-12JI
- Part No.:
- AT29LV010A-12JI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-LCC (J-Lead)
- Datasheet:
-
AT29LV010A-12JI.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,729
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Product details
Overview
AT29LV010A-12JI from Atmel is a 1 Mbit (128K × 8) 3.3 V-only Flash memory IC used for nonvolatile program/data storage in embedded boot code and firmware applications. It features 120 ns read access time, 10,000 write/erase cycles per sector, 1024 independent 128-byte sectors, and dual 8K-byte boot blocks with programmable lockout. It operates across -40°C to +85°C.
For engineers reviewing the AT29LV010A-12JI datasheet, AT29LV010A-12JI pinout, AT29LV010A-12JI application, or AT29LV010A-12JI equivalent, key selection considerations include sector-based reprogramming timing, software data protection command sequence, boot block lockout verification via address 00002H/1FFF2H, and compatibility with 3.3 V ±0.3 V supply and TTL/CMOS bus interfaces.
Technical Context
The AT29LV010A-12JI implements sector-erase-and-program architecture with internal latching of 128-byte data bursts and automatic erase-before-write sequencing. Its software data protection requires a three-byte command sequence (AAh→55h→A0h) before any sector programming, and supports DATA polling on I/O7 and toggle-bit detection on I/O6 for cycle completion.
It integrates hardware safeguards including VCC sense (<1.8 V inhibits programming), 10 ms power-on delay, noise filtering (<15 ns pulses ignored), and CE/OE/WE logic-level inhibition. Boot block lockout is enabled via a seven-command algorithm and disables chip erase when active.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (131,072 × 8), organized as 1024 sectors × 128 bytes |
| Read Access Time | 120 ns - enables direct execution from flash in systems with ≤8.3 MHz bus timing |
| Write Cycle Time | 20 ms per sector - defines minimum interval between successive sector programming operations |
| VCC Supply Range | 3.0 V to 3.6 V - compatible with 3.3 V system rails without level shifting |
| Endurance | 10,000 program/erase cycles per sector - supports field firmware updates over product lifetime |
| Standby Current | 40 µA (CMOS) - enables low-power retention in battery-backed or sleep-mode systems |
| Operating Temperature | -40°C to +85°C - qualified for industrial-grade embedded control and instrumentation |
Pinout & Package
AT29LV010A-12JI is available in 32-lead PLCC (32J) package, pin-compatible with standard JEDEC MS-016 AE variant. Body dimensions: 12.45 mm × 14.98 mm × 3.35 mm (max height).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus supporting full 128K-byte addressing; A7–A16 select sector, A0–A6 select byte within sector |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit parallel interface for read data output and program data input; supports DATA polling on I/O7 and toggle detection on I/O6 |
| 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 reads |
| WE | Write Enable | Active-low write strobe; initiates byte load during programming; must be high during reads |
| VCC | Power Supply | 3.3 V ±0.3 V main supply; powers core logic and I/O drivers |
| GND | Ground Reference | Common return path for all signals and power; decoupling required near VCC pin |
| NC | No Connect | Unbonded pins at positions 13 and 31 in PLCC; must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| Software Data Protection | Three-byte unlock sequence (5555h→2AAAh→5555h) required before each sector program, preventing accidental writes |
| Dual Boot Block Lockout | Independent 8K-byte lockout for lower (00000h–01FFFh) and upper (1E000h–1FFFFh) blocks; verified via reads at 00002h/1FFF2h |
| Internal Sector Latching | 128-byte data captured at microprocessor speed and held internally, freeing address/data bus during 20 ms programming |
| DATA Polling & Toggle Bit | I/O7 complements last loaded byte until programming completes; I/O6 toggles during operation - both enable host polling without timers |
| Hardware Write Inhibit | VCC sense, 10 ms power-up delay, and OE/CE/WE logic-level monitoring eliminate need for external voltage supervisors |
Applications
| Industrial PLC Firmware Storage | Embedded Network Router Boot Code |
|---|---|
Use Scenario: Storing firmware images and configuration parameters in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Nonvolatile boot memory holding startup code executed directly by ARM Cortex-M3/M4 microcontrollers upon reset. Use Value: 120 ns read access enables zero-wait-state execution; sector lockout prevents corruption of critical boot loader during field firmware upgrades. | Use Scenario: Holding bootloader and OS kernel images in residential and enterprise network routers requiring secure, field-upgradable firmware. IC Role / Device Role / Timing Role: Primary boot device mapped to CPU's reset vector space; accessed via 8-bit parallel bus during cold start and recovery sequences. Use Value: Dual boot blocks allow A/B firmware partitioning; software lockout ensures primary boot image remains intact during secondary image updates. |
| Medical Diagnostic Instrument Calibration Data | Automotive ECU Configuration Storage |
Use Scenario: Retaining calibrated sensor coefficients and diagnostic lookup tables in portable ultrasound and ECG devices operating across extended temperature ranges. IC Role / Device Role / Timing Role: Persistent parameter store accessed during power-up initialization and runtime calibration routines. Use Value: 10,000-cycle endurance supports recalibration over 5+ years; 40 µA standby current extends battery life in portable units. | Use Scenario: Storing vehicle-specific configuration maps and emission control parameters in engine control units subject to automotive thermal cycling. IC Role / Device Role / Timing Role: Secondary nonvolatile memory supplementing main MCU flash, storing user-modifiable calibration data not stored in internal flash. Use Value: Industrial temperature rating (-40°C to +85°C) meets AEC-Q100 Grade 3 requirements; sector granularity enables safe partial rewrites without erasing entire map sets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT29BV010A-12JI | Successor device with improved reliability, same pinout and command set; rated for 100,000 cycles vs. 10,000 | Identical boot block lockout, sector size, and timing; supports same industrial temperature range | Preferred for new designs due to higher endurance and continued production status |
| SST39VF010-70-4C-NHE | 70 ns access time, 3.3 V operation, 1 Mbit density; uses different unlock sequence (5555h→2AAAh→5555h→2AAAh) | Same sector architecture but no dedicated boot block lockout; requires external management of protected regions | Consider when faster read timing is critical and boot block protection is handled in software |
Compared with AT29LV010A-12JI, AT29BV010A-12JI offers 10× higher endurance and ongoing support, while SST39VF010 provides faster access but lacks hardware-enforced boot block protection - making AT29LV010A-12JI optimal where legacy compatibility and sector-level lockout are mandatory.
Availability
AT29LV010A-12JI is available at Aetrix Electronics and suitable for industrial PLC firmware storage, embedded network router boot code, and medical diagnostic instrument calibration data requiring stable component supply across extended temperature ranges.
Supply support for AT29LV010A-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 ICs.
The AT29LV010A product line delivers 3.3 V-only Flash memory for embedded boot code and firmware storage in industrial, networking, and medical equipment where in-system reprogrammability and sector-level data protection are essential.
FAQ
What is the maximum operating temperature range for the AT29LV010A-12JI?
The AT29LV010A-12JI is rated for industrial temperature operation from -40°C to +85°C. This specification is confirmed in the DC and AC Operating Range table (Section 6) and Absolute Maximum Ratings (Section 5), and applies to all functional modes including read, program, and standby. The device maintains full 120 ns read access and 20 ms sector programming performance across this range.
Does the AT29LV010A-12JI require high-voltage programming signals?
No, the AT29LV010A-12JI performs all programming operations using only the 3.3 V supply - no external 5 V, 12 V, or other high-voltage signals are needed. Programming is initiated via a software command sequence applied to the standard address and data bus, and internal circuitry handles erase-and-program sequencing automatically.
How is boot block lockout verified on the AT29LV010A-12JI?
Boot block lockout status is verified by entering Software Product Identification mode and reading specific addresses: location 00002H indicates lower boot block (00000h–01FFFh) lockout status (FEh = unlocked, FFh = locked), and 1FFF2H indicates upper boot block (1E000h–1FFFFh) status. This method is documented in Section 4.9.1 and requires the standard AAh/55h/90h entry sequence.
What is the sector size and total number of sectors in the AT29LV010A-12JI?
The AT29LV010A-12JI contains 1024 independent sectors, each exactly 128 bytes in size. This is explicitly stated in the Features section and confirmed in Section 4.2, where sector addressing is defined using A7–A16 for sector selection and A0–A6 for intra-sector byte addressing.
Can the AT29LV010A-12JI be used in systems with 5 V-tolerant microcontrollers?
Yes - the AT29LV010A-12JI accepts address and control inputs (A0–A16, CE, OE, WE) from 0 V to 5.5 V while powered from 3.3 V, as specified in Section 4.4 (Input Levels). However, I/O lines must be driven from 0 V to VCC + 0.6 V (≤3.9 V), so 5 V-tolerant I/O buffers or level translation are required on the data bus.
AT29LV010A-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:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-PLCC (13.97x11.43)
AT29LV010A-12JI FAQ
1.How can I place an order for AT29LV010A-12JI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT29LV010A-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 AT29LV010A-12JI reliable?
The price and inventory of AT29LV010A-12JI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT29LV010A-12JI is usually 5 days.
3.What payment methods are accepted for AT29LV010A-12JI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT29LV010A-12JI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT29LV010A-12JI?
AT29LV010A-12JI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT29LV010A-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 AT29LV010A-12JI?
For technical support, including AT29LV010A-12JI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT29LV010A-12JI requirements.
6.How does Aetrix verify that AT29LV010A-12JI is sourced from the original manufacturer or authorized distributors?
All AT29LV010A-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 AT29LV010A-12JI meets industry standards.
7.What is the process for return or replacement of AT29LV010A-12JI?
All AT29LV010A-12JI units undergo pre-shipment inspection (PSI). If there is an issue with AT29LV010A-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 AT29LV010A-12JI part is unused and in its original packaging.
Return procedure for AT29LV010A-12JI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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