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Microchip Technology AT29LV010A-25TI
- Part No.:
- AT29LV010A-25TI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT29LV010A-25TI.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,700
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Product details
Overview
AT29LV010A-25TI from Atmel is a 1 Mbit (128K × 8) 3.3V-only Flash memory IC used for nonvolatile program storage in embedded microcontroller systems. It features 120 ns read access time, 20 ms sector programming, 10,000 write/erase endurance, and dual 8K-byte boot blocks with independent lockout. It operates across industrial temperature range (–40°C to +85°C) and supports software-controlled sector erase and program.
For engineers reviewing the AT29LV010A-25TI datasheet, AT29LV010A-25TI pinout, AT29LV010A-25TI application, or AT29LV010A-25TI equivalent, key selection criteria include sector-based reprogrammability, 3V-only operation without high-voltage programming, DATA polling/toggle-bit status detection, boot block protection, and compatibility with standard EPROM read timing interfaces.
Technical Context
The AT29LV010A-25TI implements sector-based Flash architecture with 1024 × 128-byte sectors and two dedicated 8K-byte boot blocks. Programming requires a three-byte software unlock sequence followed by byte-load cycles within 150 µs intervals, after which internal timers handle erase-and-program automatically.
It supports both hardware and software data protection: VCC sense inhibits programming below 1.8V, noise filtering rejects sub-15 ns pulses on WE/CE, and boot block lockout-once enabled via a seven-command algorithm-permanently disables erasure or programming of designated 8K regions and disables chip-erase functionality.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (131,072 × 8), organized as 128K bytes for direct byte-addressable access |
| Read Access Time | 250 ns max - defines minimum clock cycle for reliable read operations at system bus speed |
| Sector Program Time | 20 ms typical - determines minimum latency between initiating and completing a 128-byte sector update |
| Endurance | >10,000 program/erase cycles per sector - enables field firmware updates over extended product lifetime |
| Supply Voltage | 3.3 V ± 0.3 V - eliminates need for separate 5V or 12V programming rails in host design |
| Standby Current | 50 µA max (industrial temp) - supports low-power sleep modes in battery-backed or energy-sensitive systems |
| Operating Temp | –40°C to +85°C - qualifies for industrial control, automotive body electronics, and outdoor equipment |
Pinout & Package
AT29LV010A-25TI is packaged in a 32-lead TSOP (Type I, 8 × 20 mm), compliant with JEDEC MO-142 BD. Pin count and layout match industry-standard 32-pin Flash footprint for drop-in compatibility with legacy board designs.
| 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 compatible with 8051, Z80, and 68K microcontrollers; supports DATA polling on I/O7 and toggle-bit detection on I/O6 |
| CE | Chip Enable | Active-low global enable; when high, places outputs in high-impedance state and reduces current to 50 µA standby |
| OE | Output Enable | Active-low read control; used with CE to prevent bus contention during multi-device sharing |
| WE | Write Enable | Active-low signal initiating byte load or program cycle; must be pulsed within 150 µs of prior pulse during sector programming |
| VCC | Power Supply | 3.3V ± 0.3V supply; internal voltage sensing prevents programming if below 1.8V |
| GND | Ground Reference | Signal and power return; decoupling required near VCC pin to maintain timing integrity during fast transitions |
| NC | No Connect | Two unconnected pins (A9 and one adjacent to VCC in TSOP); must remain floating per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Software Data Protection | Three-byte unlock sequence (AAh/55h/A0h) required before any sector programming - prevents accidental writes during power-up or noise events |
| Boot Block Lockout | Independent 8K-byte lockout for lower (0x0000–0x1FFF) and upper (0x1E000–0x1FFFF) memory regions - secures bootloader code against corruption |
| DATA Polling & Toggle Bit | I/O7 complements last loaded data until programming completes; I/O6 toggles during active programming - enables real-time status monitoring without external hardware |
| Single-Cycle Sector Erase/Program | Internal controller erases and programs entire 128-byte sector autonomously after byte loading - eliminates need for external erase timing management |
| CMOS/TTL Input Compatibility | Inputs accept 0–5.5V logic levels while operating at 3.3V - simplifies interfacing with mixed-voltage microcontroller buses |
Applications
| Industrial PLC Firmware Storage | Legacy Embedded Bootloader Memory |
|---|---|
Use Scenario: Storing firmware and configuration data in programmable logic controllers deployed in factory automation environments with wide ambient temperature swings. IC Role / Device Role / Timing Role: Nonvolatile program memory providing guaranteed 250 ns read access and sector-level field updates without high-voltage programming circuitry. Use Value: Enables in-system firmware upgrades via RS-485 or CAN bus using only 3.3V supply, reducing BOM cost and PCB space versus EPROM+UV-eraser solutions. | Use Scenario: Hosting boot code for 8-bit microcontrollers in medical diagnostic instruments requiring long-term data retention and regulatory traceability. IC Role / Device Role / Timing Role: Secure boot memory with independently lockable 8K blocks - protects startup routines from accidental overwrite during application firmware updates. Use Value: Prevents bricking of safety-critical devices by ensuring bootloader integrity across >10,000 field update cycles under industrial temperature stress. |
| Point-of-Sale Terminal Configuration | Telecom Line Card Parameter Storage |
Use Scenario: Retaining localized language packs, tax tables, and peripheral calibration data in retail terminals subject to frequent power cycling and environmental dust exposure. IC Role / Device Role / Timing Role: Low-power (50 µA standby) Flash memory supporting rapid read access during transaction initialization and robust sector rewrites during nightly updates. Use Value: Eliminates battery-backed SRAM maintenance while delivering deterministic 20 ms sector update times - critical for PCI-DSS compliance logging consistency. | Use Scenario: Storing DSP coefficient tables and line-provisioning parameters in carrier-grade DSLAM line cards operating continuously in telco central offices. IC Role / Device Role / Timing Role: Industrial-temperature-rated Flash with DATA polling support - allows host processor to concurrently manage multiple line cards while verifying write completion per sector. Use Value: Reduces firmware update downtime by enabling asynchronous status checking instead of fixed-timing delays, improving mean time to repair (MTTR). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT29BV010A-25TI | Successor device with identical pinout, same 1 Mbit density and 3.3V operation, but improved reliability and extended lifecycle support | Same boot block structure and software command set; supports identical firmware update protocols | Select for new designs requiring long-term availability and enhanced data retention specs |
| SST39VF010-25-4C-NHE | 3.3V Flash with 250 ns access, 10K endurance, and byte/sector erase - but uses different unlock sequence (5555h/2AAAh) and lacks boot block lockout | Requires firmware adaptation for programming flow; no hardware-enforced bootloader protection | Consider only if migrating legacy SST-based platforms where pin compatibility is confirmed and lockout not required |
Compared with AT29LV010A-25TI, AT29BV010A-25TI offers direct replacement with improved manufacturability and longer production support, while SST39VF010-25-4C-NHE provides functional equivalence at the cost of modified software initialization and reduced security for boot code.
Availability
AT29LV010A-25TI is available at Aetrix Electronics and suitable for industrial control systems, legacy embedded bootloader implementations, and telecom line card parameter storage requiring stable component supply and verified long-term obsolescence management.
Supply support for AT29LV010A-25TI 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, designed high-reliability nonvolatile memory and microcontroller solutions for industrial, automotive, and communications markets.
The AT29LV010A product line delivers 3.3V-only Flash memory optimized for in-system reprogrammability in resource-constrained embedded systems where space, power, and voltage simplicity are critical.
FAQ
What is the maximum read access time specified for the AT29LV010A-25TI?
The AT29LV010A-25TI has a maximum read access time of 250 ns, measured from address valid to valid data output under industrial temperature conditions (–40°C to +85°C) and 3.3V ± 0.3V supply. This value corresponds to the "-25" speed grade designation and ensures timing compliance with common 8-bit microcontroller bus cycles operating up to 4 MHz.
Does the AT29LV010A-25TI support full-chip erase?
Yes, the AT29LV010A-25TI supports optional software chip erase using a 6-byte command sequence. However, this function is disabled if either boot block lockout feature has been activated. The chip erase operation clears all 128K bytes to FFh and requires verification via DATA polling or toggle-bit monitoring, just like sector programming.
How does the boot block lockout feature work on the AT29LV010A-25TI?
The AT29LV010A-25TI contains two 8K-byte boot blocks - one at addresses 0x0000–0x1FFF (lower) and one at 0x1E000–0x1FFFF (upper). Each can be independently locked using a seven-command enable algorithm. Once locked, those blocks cannot be erased or programmed, and chip erase is disabled. Lock status is readable via software product identification mode at addresses 00002H and 1FFF2H.
Can the AT29LV010A-25TI be used with 5V-tolerant microcontrollers?
Yes - the AT29LV010A-25TI accepts input voltages from 0 to 5.5V on address and control pins (A0–A16, CE, OE, WE) while operating from a 3.3V supply, and I/O pins tolerate 0 to VCC + 0.6V. This allows direct interfacing with 5V logic families without level shifters, provided output drive strength and timing margins are validated per AC characteristics table.
Is the AT29LV010A-25TI still recommended for new designs?
No - the AT29LV010A-25TI is explicitly marked "Not Recommended for New Designs" in the official Atmel datasheet (0520F–FLASH–9/08). Atmel recommends migrating to the AT29BV010A-25TI, which maintains pin and software compatibility while offering improved process technology, extended lifecycle support, and enhanced data retention specifications.
AT29LV010A-25TI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 32-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tray
- 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:
- 250 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TSOP
AT29LV010A-25TI FAQ
1.How can I place an order for AT29LV010A-25TI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT29LV010A-25TI 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-25TI reliable?
The price and inventory of AT29LV010A-25TI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT29LV010A-25TI is usually 5 days.
3.What payment methods are accepted for AT29LV010A-25TI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT29LV010A-25TI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT29LV010A-25TI?
AT29LV010A-25TI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT29LV010A-25TI 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-25TI?
For technical support, including AT29LV010A-25TI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT29LV010A-25TI requirements.
6.How does Aetrix verify that AT29LV010A-25TI is sourced from the original manufacturer or authorized distributors?
All AT29LV010A-25TI 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-25TI meets industry standards.
7.What is the process for return or replacement of AT29LV010A-25TI?
All AT29LV010A-25TI units undergo pre-shipment inspection (PSI). If there is an issue with AT29LV010A-25TI, 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-25TI part is unused and in its original packaging.
Return procedure for AT29LV010A-25TI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT29LV010A-25TI Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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