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Microchip Technology AT29LV010A-15JI
- Part No.:
- AT29LV010A-15JI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-LCC (J-Lead)
- Datasheet:
-
AT29LV010A-15JI.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,968
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Product details
Overview
AT29LV010A-15JI from Atmel is a 1 Mbit (128K × 8) 3.3 V-only Flash memory IC used for nonvolatile program/data storage in embedded microcontroller systems. It features 120 ns read access time, 20 ms sector programming cycle, and 1024 independent 128-byte sectors with software data protection. It supports boot block lockout for secure firmware storage in industrial control and legacy BIOS applications.
For engineers reviewing the AT29LV010A-15JI datasheet, AT29LV010A-15JI pinout, AT29LV010A-15JI application, or AT29LV010A-15JI equivalent, key selection criteria include 3.3 V-only operation, sector-level reprogrammability, DATA polling/toggle bit status detection, and PLCC-32 industrial temperature support.
Technical Context
The AT29LV010A-15JI implements sector-based Flash architecture with internal address/data latches for 128-byte loads and automatic erase-before-program sequencing. Its software data protection requires a three-byte command sequence (AAh/55h/A0h) to enable programming, preventing inadvertent writes during power transitions or noise events.
It supports dual boot blocks (first/last 8 KB) with independent lockout activation via a seven-command algorithm, and provides hardware-level safeguards including VCC sense (<1.8 V inhibit), 10 ms power-on delay, and 15 ns noise filtering on WE/CE inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (131,072 × 8), organized as 128K bytes for byte-addressable access |
| Read Access Time | 150 ns max - determines minimum instruction fetch latency in 8-bit microcontroller interfaces |
| Sector Size | 128 bytes - defines smallest erasable/programmable unit; enables fine-grained firmware updates |
| Programming Cycle | 20 ms per sector - sets worst-case firmware patch duration without system stall |
| Endurance | >10,000 write/erase cycles per sector - supports field-upgradable embedded firmware over product lifetime |
| Supply Voltage | 3.3 V ± 0.3 V - compatible with modern 3.3 V logic families; no 5 V or 12 V required |
| Standby Current | 50 µA max (industrial temp) - enables low-power retention in battery-backed systems |
Pinout & Package
AT29LV010A-15JI is packaged in a 32-lead Plastic Leaded Chip Carrier (PLCC-32) compliant with JEDEC MS-016, Variation AE. Dimensions: 12.45 mm × 14.98 mm × 3.35 mm (max height), lead pitch 1.27 mm, coplanarity ≤ 0.102 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus supporting full 131,072-byte addressing; A7–A16 select sector, A0–A6 select byte within sector |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit CMOS/TTL-compatible data path; supports DATA polling on I/O7 and toggle bit on I/O6 |
| CE | Chip Enable | Active-low chip select; must be low for read/write; high disables outputs to high-Z 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 and sector programming when CE low and OE high |
| VCC | Power Supply | +3.3 V supply; must stabilize ≥20 ms after power-on before first access |
| GND | Ground | Reference for all I/O and internal circuitry; decoupling capacitor required near pin |
| NC | No Connect | Two unconnected pins (PLCC pins 13 & 31); must remain floating, not tied to VCC/GND |
Key Features
| Feature | Design Value |
|---|---|
| Software Data Protection | Three-byte unlock sequence (5555h/2AAAh/5555h) required before every sector program - prevents accidental firmware corruption |
| Boot Block Lockout | Independent 8 KB lockout for first/last memory segments - secures bootloader code against overwrite in field-deployed systems |
| DATA Polling & Toggle Bit | I/O7 complement-read and I/O6 toggling provide real-time, bus-compatible programming status - eliminates need for external timers or interrupts |
| Internal Program Control | On-chip timer and erase-then-program sequencing - frees host processor during 20 ms sector write, enabling concurrent tasks |
| 3.3 V-Only Operation | No high-voltage programming supply needed - simplifies PCB design and reduces BOM count vs. 5 V/12 V Flash devices |
Applications
| Industrial PLC Firmware Storage | Legacy PC BIOS Memory |
|---|---|
Use Scenario: Storing configuration logic and runtime firmware in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Nonvolatile program memory mapped into microcontroller address space; accessed via standard 8-bit parallel bus with CE/OE/WE handshaking. Use Value: 50 µA industrial standby current extends uptime during brownouts; sector lockout prevents unauthorized modification of safety-critical control routines. | Use Scenario: Holding BIOS initialization code and hardware abstraction layer in desktop motherboards from late 1990s–early 2000s. IC Role / Device Role / Timing Role: Boot ROM replacement for EPROM sockets; supports hot-plug reprogramming without socket removal. Use Value: 120 ns read access meets Intel 486/Pentium timing requirements; dual boot blocks allow fail-safe BIOS recovery via shadow copy. |
| Embedded Instrumentation Calibration Data | Telecom Line Card Configuration |
Use Scenario: Retaining sensor calibration coefficients and linearization tables in portable test equipment requiring recalibration every 6–12 months. IC Role / Device Role / Timing Role: Parameter storage device interfaced to microcontroller's parallel port; updated only during maintenance mode. Use Value: >10,000 endurance cycles support lifetime recalibration; software protection prevents field technicians from corrupting stored coefficients. | Use Scenario: Storing protocol stack parameters and hardware configuration profiles in carrier-grade DSLAM line cards deployed in central offices. IC Role / Device Role / Timing Role: Configuration memory accessed at power-up and during firmware upgrades; isolated from main data path. Use Value: Industrial temperature range (-40°C to +85°C) ensures reliability in uncooled telecom cabinets; sector granularity allows selective update of individual line profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT29BV010A-15JI | Successor device with improved reliability, same pinout and command set; rated for >100,000 cycles | Identical boot block, sector size, and timing; designed for new designs where long-term supply continuity is critical | Select for new designs requiring extended lifecycle support and higher endurance |
| MX29LV010CTTI-15G | Macronix equivalent; 150 ns read, 20 ms program, but uses different unlock sequence (AAh/55h/30h) | Requires firmware adaptation for programming commands; same PLCC-32 package and voltage range | Choose when migrating from Atmel due to supply constraints; verify command compatibility in host driver |
Compared with AT29LV010A-15JI, AT29BV010A-15JI offers superior endurance and official new-design support, while MX29LV010CTTI-15G provides drop-in voltage/timing compatibility but requires software revalidation of unlock sequences.
Availability
AT29LV010A-15JI is available at Aetrix Electronics and suitable for industrial control systems, legacy computing platforms, and embedded instrumentation requiring stable component supply across extended lifecycles.
Supply support for AT29LV010A-15JI 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 was a U.S.-based semiconductor manufacturer specializing in microcontrollers, Flash memory, and touch technologies before its acquisition by Microchip Technology in 2016.
The AT29LV010A product line delivers cost-optimized, 3.3 V-only parallel Flash memory for legacy and long-lifecycle embedded systems where pin compatibility and proven field reliability are prioritized over next-generation density or speed.
FAQ
What is the maximum operating temperature range for the AT29LV010A-15JI?
The AT29LV010A-15JI is rated for industrial temperature operation from –40°C to +85°C. This specification is confirmed in the "DC and AC Operating Range" table of the official datasheet (0520F–FLASH–9/08), where the "Ind." column explicitly lists this range for all -15JI variants. The device maintains full functionality-including 150 ns read access and 20 ms sector programming-across this entire span.
Does the AT29LV010A-15JI require a high-voltage programming supply?
No, the AT29LV010A-15JI operates with a single 3.3 V supply for both read and write functions. As stated in the Features section and Description, it is a "3-volt Only" Flash device. Programming is enabled solely through software command sequences (e.g., AAh/55h/A0h); no external 5 V, 12 V, or VPP voltage is needed. This eliminates high-voltage generation circuitry on the host board.
How many sectors does the AT29LV010A-15JI have, and what is the size of each sector?
The AT29LV010A-15JI contains 1024 independent sectors, each exactly 128 bytes in size. This is specified in the Features list ("1024 Sectors (128 Bytes/Sector)") and reinforced in Section 4.2, which states that "reprogramming is performed on a sector basis" and "128 bytes of data are loaded into the device and then simultaneously programmed." Sector addressing uses A7–A16.
Can the AT29LV010A-15JI be used as a direct replacement for standard EPROMs like the 27C010?
The AT29LV010A-15JI is pin-compatible with the 27C010 in PLCC-32 and shares identical address/data bus connections (A0–A16, I/O0–I/O7, CE, OE, WE), but differs critically in programming methodology and voltage. Unlike the 27C010, it requires no UV erasure or 12.5 V VPP, instead using software commands. Read operation is functionally identical, making it a practical drop-in for read-only use, but firmware must be updated to support sector programming.
What status detection methods does the AT29LV010A-15JI support during programming?
The AT29LV010A-15JI supports two hardware-verified status detection methods: DATA polling on I/O7 (complement of last written byte indicates ongoing program) and toggle bit behavior on I/O6 (toggling between 0/1 until completion). Both are defined in Sections 4.6 and 4.7 of the datasheet and require no additional components-status is monitored directly on the data bus during active programming cycles.
AT29LV010A-15JI 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:
- 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-15JI FAQ
1.How can I place an order for AT29LV010A-15JI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT29LV010A-15JI 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-15JI reliable?
The price and inventory of AT29LV010A-15JI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT29LV010A-15JI is usually 5 days.
3.What payment methods are accepted for AT29LV010A-15JI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT29LV010A-15JI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT29LV010A-15JI?
AT29LV010A-15JI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT29LV010A-15JI 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-15JI?
For technical support, including AT29LV010A-15JI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT29LV010A-15JI requirements.
6.How does Aetrix verify that AT29LV010A-15JI is sourced from the original manufacturer or authorized distributors?
All AT29LV010A-15JI 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-15JI meets industry standards.
7.What is the process for return or replacement of AT29LV010A-15JI?
All AT29LV010A-15JI units undergo pre-shipment inspection (PSI). If there is an issue with AT29LV010A-15JI, 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-15JI part is unused and in its original packaging.
Return procedure for AT29LV010A-15JI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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