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Microchip Technology AT29LV010A-12TI
- Part No.:
- AT29LV010A-12TI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT29LV010A-12TI.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,001
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Product details
Overview
AT29LV010A-12TI from Atmel is a 1 Mbit (128K × 8) 3.3 V-only Flash memory IC used for in-system firmware storage and boot code retention in embedded controllers. It features 120 ns read access time, 10,000 program/erase cycles per sector, software-controlled sector erase-and-program, and dual 8 KB boot blocks with independent programming lockout. It operates across -40°C to +85°C industrial temperature range.
For engineers reviewing the AT29LV010A-12TI datasheet, AT29LV010A-12TI pinout, AT29LV010A-12TI application, or AT29LV010A-12TI equivalent, key selection criteria include sector-based reprogrammability, 3.3 V single-supply operation, DATA polling/toggle-bit status detection, boot block protection, and compatibility with legacy EPROM-style bus interfaces in microcontroller-based systems.
Technical Context
The AT29LV010A-12TI implements a sector-erase architecture with 1024 × 128-byte sectors, where each sector must be fully loaded before internal auto-erase-and-program execution. Programming is initiated via a three-byte software command sequence (5555h/2AAAh/5555h), followed by byte-load pulses on WE or CE with strict 150 µs inter-byte timing.
It supports two hardware-protected boot blocks (0–7FFFh and F8000–FFFFh), each independently lockable via a seven-command enable algorithm. Status detection uses I/O7 DATA polling (complement-to-data during programming) and I/O6 toggle-bit behavior-both accessible at any point during program/erase cycles without halting host operations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (131,072 × 8 bits); sufficient for full bootloader + configuration data in 8-bit/16-bit MCU systems. |
| Read Access Time | 120 ns max; enables direct interface with 8 MHz Z80, 68K, or early ARM7 buses without wait states. |
| Supply Voltage | 3.3 V ± 0.3 V only; eliminates need for 5 V or 12 V programming voltages, simplifying power design. |
| Active Current | 15 mA typical; allows sustained read bursts in low-power industrial control modules. |
| Standby Current | 40 µA (CMOS mode); supports battery-backed operation in always-on monitoring devices. |
| Endurance | >10,000 program/erase cycles per sector; suitable for field-upgradable firmware with moderate update frequency. |
| Sector Size | 128 bytes; balances granularity of updates against overhead of sector management in firmware OTA logic. |
Pinout & Package
AT29LV010A-12TI is available in 32-lead TSOP (Type I, 8 × 20 mm) package per JEDEC MO-142 BD, with standard CMOS-compatible I/O signaling and no internal pull-ups.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus supporting full 128K-byte addressing; A7–A16 define sector address during programming. |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit parallel interface compatible with 8051, 68000, and Z80 data buses; supports DATA polling on I/O7 and toggle-bit on I/O6. |
| CE | Chip Enable | Active-low chip select; when high, places outputs in high-impedance state to prevent bus contention. |
| OE | Output Enable | Active-low output control; used with CE for flexible read timing and bus sharing in multi-peripheral systems. |
| WE | Write Enable | Active-low write strobe; latches address/data during sector programming; must be high during reads. |
| VCC | Power Supply | 3.3 V supply input; internal voltage sensing disables programming if VCC drops below 1.8 V. |
| GND | Ground Reference | Signal and power ground reference; decoupling required within 10 mm of VCC pin per layout guidelines. |
| NC | No Connect | Two unconnected pins (A9 and one adjacent to VCC in TSOP); must remain floating-no external tie. |
Key Features
| Feature | Design Value |
|---|---|
| Software Data Protection | Three-byte unlock sequence (5555h/2AAAh/5555h) prevents accidental writes-critical for field-deployed firmware integrity. |
| Dual Boot Block Lockout | Independent 8 KB lockable regions at 0–7FFFh and F8000–FFFFh ensure secure bootloader persistence during application updates. |
| Internal Program Timer | Automated erase-and-program execution after byte load completes; removes need for external timing control or watchdog coordination. |
| DATA Polling & Toggle Bit | Real-time status feedback via I/O7 (data complement) or I/O6 (toggle) enables non-blocking firmware update routines in bare-metal or RTOS environments. |
| CMOS/TTL Input Compatibility | Inputs accept 0–5.5 V signals while operating at 3.3 V; allows direct interfacing with 5 V microcontrollers without level shifters. |
Applications
| Industrial PLC Firmware Storage | Legacy Embedded System Boot Memory |
|---|---|
|
Use Scenario: Storing ladder logic firmware and I/O configuration in DIN-rail mounted programmable logic controllers with 8-bit microcontrollers. IC Role / Device Role / Timing Role: Nonvolatile boot memory providing immediate code execution on power-up; accessed as memory-mapped ROM during reset vector fetch. Use Value: Sector lockout protects startup code from corruption during field firmware updates; 120 ns access avoids CPU wait states on 8 MHz bus clocks. |
Use Scenario: Replacing obsolete 27C010 EPROMs in medical infusion pump controllers requiring in-cabinet reprogramming. IC Role / Device Role / Timing Role: Drop-in Flash replacement for UV-erasable EPROMs; retains identical pinout and read protocol while enabling electrical reprogramming. Use Value: Eliminates need for EPROM erasers and socket programmers; software-controlled sector erase allows partial updates without full device reflash. |
| Point-of-Sale Terminal Configuration | Telecom Line Card Boot Image |
|
Use Scenario: Holding localized language packs, tax tables, and peripheral driver binaries in retail POS terminals deployed globally. IC Role / Device Role / Timing Role: Field-upgradable configuration store mapped into microcontroller's lower memory space; updated via serial port commands. Use Value: 10,000-cycle endurance supports quarterly regional updates over 10-year product life; 40 µA standby current extends battery backup duration. |
Use Scenario: Storing boot images and DSP initialization code on carrier-grade T1/E1 line cards requiring hot-swap capability. IC Role / Device Role / Timing Role: Primary boot memory accessed by telecom processor at power-on; protected boot blocks prevent corruption during firmware patching. Use Value: Dual boot blocks allow A/B image switching; DATA polling enables deterministic update completion detection without dedicated status lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT29BV010A-12TI | Successor with improved 3.0–3.6 V VCC range, tighter tACC spec (120 ns guaranteed), and enhanced ESD tolerance; same pinout and command set. | Preferred for new designs requiring extended voltage margin and higher reliability in noisy industrial environments. | Select AT29BV010A-12TI when designing new products-Atmel explicitly recommends it over AT29LV010A-12TI. |
| SST39VF010-120-3C-NHE | 3.3 V Flash with 120 ns access, 100,000-cycle endurance, and single-power 3.0–3.6 V operation; uses different unlock sequence (5555h/2AAAh) and lacks boot block lockout. | Better suited for high-update-frequency applications like data loggers; not ideal where bootloader protection is mandatory. | Choose SST39VF010-120-3C-NHE only if higher endurance is critical and boot block security is not required. |
Compared with AT29LV010A-12TI, AT29BV010A-12TI offers validated voltage margin and longevity improvements without design changes, while SST39VF010-120-3C-NHE trades boot security for greater endurance-making the former the recommended upgrade path and the latter a functional alternative only where lockout is unnecessary.
Availability
AT29LV010A-12TI is available at Aetrix Electronics and suitable for industrial PLCs, legacy embedded system upgrades, and telecom line card replacements requiring stable component supply and long-term obsolescence management.
Supply support for AT29LV010A-12TI 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 for industrial, automotive, and consumer applications.
The AT29LV010A product line was designed for cost-sensitive, in-system programmable firmware storage in 8-bit and 16-bit embedded systems requiring EPROM compatibility with electrical reprogrammability.
FAQ
What is the operating temperature range for AT29LV010A-12TI?
The AT29LV010A-12TI is rated for industrial temperature operation from -40°C to +85°C. This specification is confirmed in the Ordering Information table (Section 26.1) and DC Operating Range section (Section 6), where "TI" suffix denotes the industrial grade variant. The device maintains full functionality-including 120 ns read access and 40 µA standby current-across this entire range.
Does AT29LV010A-12TI require high-voltage programming signals?
No, AT29LV010A-12TI operates with 3.3 V only-no 5 V, 12 V, or other high-voltage programming supplies are needed. Programming is enabled solely through software command sequences applied at VCC levels (3.0–3.6 V), as stated in the Description and Software Data Protection sections. Hardware protection features (e.g., VCC sense) actively inhibit programming if supply falls below 1.8 V.
How is sector programming executed on AT29LV010A-12TI?
Sector programming on AT29LV010A-12TI requires loading all 128 bytes of a target sector using WE- or CE-controlled byte pulses within 150 µs of each other, after entering the three-byte unlock sequence. Once the final byte is latched, the device automatically erases the sector and programs the data using its internal timer-no external erase command is needed, and the process takes up to 20 ms.
Can AT29LV010A-12TI be used as a direct replacement for 27C010 EPROMs?
Yes, AT29LV010A-12TI provides pin-for-pin and read-protocol compatibility with 27C010 EPROMs, including identical address/data bus mapping and CE/OE/WE control logic. Its EPROM-like read operation (CE+OE low, WE high) allows drop-in replacement in existing sockets-though programming requires software commands instead of UV erasure and high-voltage programming.
What status detection methods does AT29LV010A-12TI support during programming?
AT29LV010A-12TI supports two real-time status detection methods: DATA polling (monitoring I/O7 for complement-to-data behavior) and Toggle Bit (observing I/O6 toggling between 0 and 1). Both methods are accessible at any time during programming and eliminate the need for fixed delay loops or external timers in host firmware.
AT29LV010A-12TI 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:
- 120 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-12TI FAQ
1.How can I place an order for AT29LV010A-12TI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT29LV010A-12TI 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-12TI reliable?
The price and inventory of AT29LV010A-12TI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT29LV010A-12TI is usually 5 days.
3.What payment methods are accepted for AT29LV010A-12TI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT29LV010A-12TI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT29LV010A-12TI?
AT29LV010A-12TI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT29LV010A-12TI 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-12TI?
For technical support, including AT29LV010A-12TI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT29LV010A-12TI requirements.
6.How does Aetrix verify that AT29LV010A-12TI is sourced from the original manufacturer or authorized distributors?
All AT29LV010A-12TI 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-12TI meets industry standards.
7.What is the process for return or replacement of AT29LV010A-12TI?
All AT29LV010A-12TI units undergo pre-shipment inspection (PSI). If there is an issue with AT29LV010A-12TI, 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-12TI part is unused and in its original packaging.
Return procedure for AT29LV010A-12TI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT29LV010A-12TI Tags
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