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Microchip Technology AT29LV010A-12TC
- Part No.:
- AT29LV010A-12TC
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT29LV010A-12TC.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,037
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Product details
Overview
AT29LV010A-12TC from Atmel is a 1 Mbit (128K × 8) 3.3V-only Flash memory IC designed for in-system reprogrammability in embedded boot code storage. It delivers 120 ns read access time, 20 ms sector program cycle time, and supports software-controlled sector erase/program with 1024 × 128-byte sectors. Used in microcontroller-based systems requiring reliable nonvolatile storage for firmware or configuration data.
For engineers reviewing the AT29LV010A-12TC datasheet, AT29LV010A-12TC pinout, AT29LV010A-12TC application, or AT29LV010A-12TC equivalent, key selection criteria include 3.3V-only operation, boot block lockout capability, DATA polling/Toggle Bit programming status detection, and TSOP-32 packaging compatibility with legacy 8-bit bus interfaces.
Technical Context
The AT29LV010A-12TC implements sector-based flash architecture with two independent 8K-byte boot blocks featuring programmable lockout-enabling secure system startup code protection. Its software data protection requires a three-byte command sequence (AAh/55h/A0h) before any sector write, preventing inadvertent programming during power transitions or noise events.
Operation relies on dual-line chip enable (CE) and output enable (OE) control for bus contention avoidance, CMOS/TTL-compatible I/Os, and internal latching of 128-byte sector data at microprocessor speed-freeing the address/data bus during internal erase-program cycles. End-of-program detection is supported via DATA polling on I/O7 or Toggle Bit monitoring on I/O6.
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 | 120 ns max - enables direct interface with 8-MHz microcontrollers without wait states |
| Sector Size | 128 bytes × 1024 sectors - allows fine-grained firmware updates without full-chip erasure |
| Program Cycle Time | 20 ms per sector - deterministic timing for host firmware scheduling of write operations |
| Supply Voltage | 3.3 V ± 0.3 V - compatible with modern low-voltage logic families and eliminates need for 5V/12V programming supplies |
| Endurance | >10,000 program/erase cycles per sector - supports field-upgradable embedded applications over product lifetime |
| Standby Current | 40 µA (CMOS) - suitable for battery-backed or low-power sleep modes in portable devices |
Pinout & Package
AT29LV010A-12TC is packaged in a 32-lead Thin Small Outline Package (TSOP Type I), 8 mm × 20 mm body, compliant with JEDEC MO-142 BD. Pin 1 identifier located at top-left corner when viewed from top with marking side up.
| 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; I/O7 used for DATA polling, I/O6 for Toggle Bit status monitoring |
| CE | Chip Enable | Active-low device select; must be low with OE low and WE high for read access |
| OE | Output Enable | Active-low output control; enables data output only when CE is also low |
| WE | Write Enable | Active-low write strobe; initiates byte load during sector programming when CE is low and OE high |
| VCC | Power Supply | +3.3 V supply input; internal voltage sensing inhibits programming if below 1.8 V |
| GND | Ground | Reference return path for all signals and power; decoupling required near VCC pin |
| NC | No Connect | Two unconnected pins (A9 and one adjacent to VCC in TSOP layout); must remain floating |
Key Features
| Feature | Design Value |
|---|---|
| Software Data Protection | Three-byte unlock sequence (AAh/55h/A0h) required before every sector program - prevents accidental writes during reset or noise |
| Boot Block Lockout | Independent 8K-byte upper/lower boot blocks can be permanently locked after enabling - secures bootloader code against corruption |
| DATA Polling & Toggle Bit | Real-time program status feedback via I/O7 complement read or I/O6 toggling - eliminates need for fixed delay timers in host firmware |
| Single-Cycle Sector Erase/Program | Internal automatic erase before programming - simplifies host driver logic and guarantees sector consistency |
| CMOS/TTL-Compatible I/O | Input thresholds (VIL = 0.6 V, VIH = 2.0 V) and output drive (VOH = 2.4 V @ -100 µA) support mixed-voltage system interfacing |
Applications
| Industrial PLC Firmware Storage | Legacy Embedded System Boot Code |
|---|---|
Use Scenario: Storing firmware and configuration parameters in programmable logic controllers operating in harsh industrial environments (-40°C to +85°C). IC Role / Device Role / Timing Role: Nonvolatile boot memory holding initialization routines and real-time task scheduler code executed at power-on. Use Value: Boot block lockout prevents unauthorized modification of critical startup code; 10,000-cycle endurance supports periodic field updates over 10+ years. | Use Scenario: Replacing EPROMs in legacy 8-bit microcontroller designs (e.g., 8051, Z80) where board space and voltage constraints limit upgrade options. IC Role / Device Role / Timing Role: Drop-in Flash replacement for 27C010 EPROMs, providing in-circuit reprogrammability without UV erasers or 12V programming supplies. Use Value: 120 ns access time matches EPROM timing; TSOP-32 footprint enables direct PCB replacement; 3.3V-only operation reduces power supply complexity. |
| Medical Device Configuration Memory | Point-of-Sale Terminal Parameter Storage |
Use Scenario: Holding calibration data, user preferences, and safety-critical operational limits in Class II medical instruments requiring traceable firmware revisions. IC Role / Device Role / Timing Role: Secure parameter store with write-protection enforced via software lockout and hardware VCC-sense inhibition. Use Value: DATA polling enables deterministic write completion detection for audit-log timestamping; 40 µA standby current extends battery life in portable diagnostic tools. | Use Scenario: Storing localized language packs, tax tables, and peripheral configuration in retail POS terminals deployed globally. IC Role / Device Role / Timing Role: Field-upgradable application data repository accessed via parallel bus during terminal initialization or maintenance mode. Use Value: Sector-level granularity allows updating tax tables without erasing payment processing firmware; industrial temperature range ensures reliability in uncontrolled retail environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT29BV010A-12TC | Successor device with improved 3.0–3.6 V operation, lower 30 µA standby current, and enhanced ESD tolerance; same pinout and command set | Recommended for new designs requiring longer product lifecycle support and tighter voltage margin | Select AT29BV010A-12TC when designing new products; AT29LV010A-12TC remains viable for legacy repair or continuity builds |
| SST39VF010-70-4C-NHE | 70 ns access time, 3.3 V ± 0.3 V, 1 Mbit density, but uses different unlock sequence (5555h/2AAA/AAAh) and lacks boot block lockout | Suitable for cost-sensitive applications where boot security is not required and faster read timing is beneficial | Choose SST39VF010-70-4C-NHE only if host firmware can be modified to support alternate command protocol and boot protection is unnecessary |
Compared with AT29LV010A-12TC, AT29BV010A-12TC offers extended longevity and marginally lower power, while SST39VF010-70-4C-NHE trades boot security for faster reads and alternate command compatibility-neither is pin-compatible without layout verification, and both require firmware adaptation for programming sequences.
Availability
AT29LV010A-12TC is available at Aetrix Electronics and suitable for industrial PLC firmware storage, legacy embedded system boot code replacement, and medical device configuration memory requiring stable component supply across extended production lifecycles.
Supply support for AT29LV010A-12TC 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 engineered for 3.3V-only in-system programmable Flash memory in space-constrained embedded systems, targeting EPROM replacement and secure boot code storage with minimal board redesign.
FAQ
What is the maximum operating temperature range for the AT29LV010A-12TC?
The AT29LV010A-12TC 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) of the official datasheet, where "AT29LV010A-12TI" denotes the industrial-grade variant matching the -12TC suffix. The commercial version (0°C to 70°C) is designated by "-12JC" or "-12TC" with "C" suffix, but the "-12TC" ordering code explicitly maps to the industrial temperature grade per Section 26.1.
Does the AT29LV010A-12TC support full-chip erase?
Yes, the AT29LV010A-12TC supports optional full-chip erase using a 6-byte software command sequence, as documented in Section 4.8 ("Optional Chip Erase Mode"). However, this function is disabled if either boot block programming lockout has been activated-a critical design constraint that must be verified before issuing the chip erase command. The procedure requires precise timing and address/data inputs per the Software Chip Erase application note.
How does the boot block lockout feature work on the AT29LV010A-12TC?
The AT29LV010A-12TC contains two 8K-byte boot blocks-one at the lowest addresses (0x0000–0x1FFF) and one at the highest (0xE000–0xFFFF). Lockout is enabled via a seven-command algorithm (Section 25) that permanently disables programming and erasure of the selected block. Once locked, the block retains its data indefinitely; reading remains functional. Status is verified by reading address 0x0002 (lower block) or 0x1FFF2 (upper block), where FFh indicates lockout active.
Can the AT29LV010A-12TC be used with a 5V microcontroller interface?
Yes-the AT29LV010A-12TC accepts 0–5.5 V on address and control inputs (OE, CE, WE) while powered from 3.3 V, as specified in Section 4.4 ("Input Levels"). However, I/O lines tolerate only 0 to VCC + 0.6 V (≤ 3.9 V), so direct 5V data bus connection requires level-shifting circuitry. CMOS/TTL-compatible thresholds (VIL = 0.6 V, VIH = 2.0 V) ensure reliable signal recognition from 5V logic outputs.
What is the purpose of the NC pins on the AT29LV010A-12TC TSOP package?
The AT29LV010A-12TC TSOP package has two NC (No Connect) pins: one at position A9 (pin 22 per TSOP top view) and another adjacent to VCC (pin 31). These pins are electrically isolated from internal circuitry and must remain unconnected on the PCB. They exist for mechanical symmetry and package standardization-not for future functionality or test access-and routing traces to them may cause signal integrity issues or latch-up risk.
AT29LV010A-12TC 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:
- 0°C ~ 70°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TSOP
AT29LV010A-12TC FAQ
1.How can I place an order for AT29LV010A-12TC through Aetrix?
Please submit a Request for Quotation (RFQ) for AT29LV010A-12TC 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-12TC reliable?
The price and inventory of AT29LV010A-12TC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT29LV010A-12TC is usually 5 days.
3.What payment methods are accepted for AT29LV010A-12TC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT29LV010A-12TC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT29LV010A-12TC?
AT29LV010A-12TC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT29LV010A-12TC 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-12TC?
For technical support, including AT29LV010A-12TC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT29LV010A-12TC requirements.
6.How does Aetrix verify that AT29LV010A-12TC is sourced from the original manufacturer or authorized distributors?
All AT29LV010A-12TC 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-12TC meets industry standards.
7.What is the process for return or replacement of AT29LV010A-12TC?
All AT29LV010A-12TC units undergo pre-shipment inspection (PSI). If there is an issue with AT29LV010A-12TC, 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-12TC part is unused and in its original packaging.
Return procedure for AT29LV010A-12TC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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