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Microchip Technology AT29BV010A-15TU
- Part No.:
- AT29BV010A-15TU
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT29BV010A-15TU.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,732
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Product details
Overview
AT29BV010A-15TU from Microchip Technology (formerly Atmel) is a 1-Mbit (128K × 8) single-supply 2.7V–3.6V Flash memory IC used for nonvolatile code and data storage in embedded systems. It features 120 ns read access time, sector-based reprogramming with 1024 × 128-byte sectors, and dual 8K-byte boot blocks with independent programming lockout. It supports in-system reprogrammability without high-voltage programming signals and is commonly deployed in microcontroller boot loaders and firmware update storage.
For engineers reviewing the AT29BV010A-15TU datasheet, AT29BV010A-15TU pinout, AT29BV010A-15TU application, or AT29BV010A-15TU equivalent, key selection considerations include its 150 ns max read access timing, software-controlled sector erase/program, CMOS standby current of 50 µA, boot block lockout capability, and compatibility with standard parallel memory interfaces in industrial control and legacy embedded platforms.
Technical Context
The AT29BV010A-15TU implements a parallel asynchronous interface with CE/OE/WE control logic and operates as a drop-in replacement for EPROMs in 8-bit bus systems. Its internal architecture includes address/data latches for 128-byte sector loading, an autonomous internal timer for erase-and-program execution, and DATA polling (I/O7) and toggle-bit (I/O6) status reporting.
It uses software data protection requiring a three-byte command sequence (AAh→55h→A0h) to enable programming, and supports hardware safeguards including VCC sense (<2.0V inhibition), noise filtering (<15 ns pulse rejection), and write inhibit via OE low/CE high/WE high states. Boot block lockout is activated via a seven-command sequence and disables chip erase when enabled.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (131,072 × 8), organized as 128K words × 8 bits - matches standard 8-bit microprocessor data bus width. |
| Read Access Time | 150 ns max (AT29BV010A-15TU grade) - ensures compatibility with 6–7 MHz bus timing in legacy MCU systems. |
| Supply Voltage | 2.7V to 3.6V single supply - eliminates need for 5V or 12V programming voltage, enabling direct battery or LDO-powered operation. |
| Standby Current | 50 µA CMOS standby - enables ultra-low-power retention in always-on embedded devices. |
| Sector Size | 128 bytes per sector (1024 total sectors) - allows fine-grained firmware updates without erasing full device. |
| Endurance | >10,000 program/erase cycles per sector - supports field firmware upgrades over product lifetime. |
| Boot Blocks | Two 8K-byte blocks (first and last 8KB) with independent lockout - protects bootloader code from accidental overwrite. |
Pinout & Package
AT29BV010A-15TU is available in 32-lead TSOP (Type 1, package code 32T) - a thin, surface-mount, 8 mm × 20 mm JEDEC MO-142 compliant package suitable for high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus supporting full 128K-word addressing; A0–A6 select byte within 128-byte sector during programming. |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit parallel data path for read/write; I/O7 used for DATA polling, I/O6 for toggle-bit status monitoring. |
| CE | Chip Enable | Active-low chip select; must be low for read or write; high forces outputs to high-impedance state. |
| OE | Output Enable | Active-low output control; used with CE to manage bus contention; must be high during programming. |
| WE | Write Enable | Active-low write strobe; controls latching of address/data during sector load; low with CE low and OE high initiates byte load. |
| VCC | Power Supply | 2.7V–3.6V main supply; internal VCC sense prevents programming if below ~2.0V. |
| GND | Ground Reference | Signal and power ground reference for all inputs, outputs, and internal circuitry. |
| NC | No Connect | Two unconnected pins (A9 and one adjacent to VCC in TSOP); must remain floating per datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| Single-cycle sector erase + program | Eliminates separate erase command - simplifies firmware update routines and reduces host CPU overhead. |
| Software data protection | Three-byte unlock sequence (5555h/2AAAh/5555h) prevents accidental writes - critical for field-deployed systems. |
| Boot block lockout | Independent enable/disable for first and last 8KB - secures bootloader while allowing application partition updates. |
| DATA polling & toggle-bit status | Real-time, bus-compatible programming completion detection - avoids fixed delays and enables deterministic timing. |
| Green Pb/halide-free packaging | Complies with RoHS Directive 2011/65/EU - meets environmental compliance requirements for industrial shipments. |
Applications
| Industrial PLC Firmware Storage | Legacy Embedded Bootloader Memory |
|---|---|
Use Scenario: Storing firmware images and configuration parameters in programmable logic controllers operating in factory-floor environments with wide temperature swings and EMI exposure. IC Role / Device Role / Timing Role: Nonvolatile parallel Flash memory providing boot code and runtime parameter storage; accessed via 8-bit microcontroller bus at ≤6.67 MHz (150 ns tACC). Use Value: Sector-level reprogrammability enables remote firmware patches without full device replacement; 50 µA standby current extends uptime in battery-backed modules. | Use Scenario: Hosting boot code for 8051- or Z80-based medical instrumentation where BIOS-like initialization must survive power loss and field updates are infrequent but critical. IC Role / Device Role / Timing Role: Primary boot ROM replacement; provides fast read access and secure lockout for first 8KB containing reset vector and initialization routines. Use Value: Dual boot block lockout prevents corruption of startup code during application updates; software protection prevents spurious writes during brown-out conditions. |
| Automotive Body Control Module (BCM) | Point-of-Sale Terminal Configuration Storage |
Use Scenario: Storing calibration tables and feature-enable flags in automotive BCMs operating across -40°C to +85°C ambient range. IC Role / Device Role / Timing Role: Field-upgradable nonvolatile memory interfaced to 8-bit MCU; leverages 2.7V–3.6V operation to track battery voltage directly without level-shifting. Use Value: >10,000 endurance cycles support multiple vehicle service-life calibrations; green packaging satisfies automotive RoHS requirements. | Use Scenario: Retaining localized language packs, tax rate tables, and merchant-specific settings in retail terminals subject to frequent power cycling and limited physical space. IC Role / Device Role / Timing Role: Compact, low-power parallel Flash memory mapped into MCU address space; TSOP package enables dense SMT assembly on cost-sensitive PCBs. Use Value: 150 ns read timing supports responsive UI rendering; 128-byte sector granularity allows selective table updates without disrupting active transaction logs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF010-70-4C-NHE | 70 ns read access, 3.0V–3.6V only, no boot block lockout, 128-byte sectors | Lacks dedicated boot block protection; requires external software management of critical code regions | Preferred when faster read speed is required and boot security is handled at firmware level. |
| MX29LV160CTTI-70G | 16 Mbit density, 3.0V–3.6V, CFI-compliant, 64K/32K/16K/8K sector sizes, no 128-byte sectors | Higher density and flexible sector architecture; incompatible sector granularity and command set | Chosen for scalable designs needing larger code space and standardized CFI interface, not direct replacement. |
Compared with SST39VF010-70-4C-NHE and MX29LV160CTTI-70G, the AT29BV010A-15TU offers unique 128-byte sector granularity and hardware-enforced boot block lockout - making it optimal for resource-constrained legacy systems where firmware integrity and minimal update footprint are prioritized over raw speed or density.
Availability
AT29BV010A-15TU is available at Aetrix Electronics and suitable for industrial PLCs, legacy embedded bootloaders, automotive body control modules, point-of-sale terminals, and medical instrumentation requiring stable component supply across extended lifecycle programs.
Supply support for AT29BV010A-15TU 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
Microchip Technology acquired Atmel in 2016 and maintains full support for legacy Atmel Flash products including the AT29BV010A series.
The AT29BV010A belongs to Atmel's Low Voltage Flash family, designed specifically for in-system reprogrammability in 2.7V–3.6V embedded applications where EPROM replacement, firmware upgradability, and boot code security are essential.
FAQ
What is the maximum read access time specified for the AT29BV010A-15TU?
The AT29BV010A-15TU is rated for a maximum read access time of 150 ns under industrial temperature conditions (-40°C to +85°C) and 2.7V–3.6V supply. This value is guaranteed across the full operating range and defines the minimum time between address valid and valid data appearing on I/O0–I/O7. The "-15" suffix explicitly denotes this 150 ns timing grade, distinguishing it from the faster -12 variant (120 ns).
Does the AT29BV010A-15TU require high-voltage programming signals?
No, the AT29BV010A-15TU does not require high-voltage programming signals. It operates with a single 2.7V–3.6V supply for both read and write operations. Programming is enabled solely through a software command sequence (AAh→55h→A0h) followed by sector data loading - eliminating the need for 12V VPP or external high-voltage generators, simplifying system design and reducing BOM cost.
How many sectors does the AT29BV010A-15TU have, and what is the size of each sector?
The AT29BV010A-15TU contains 1024 sectors, each exactly 128 bytes in size. This uniform sector structure enables predictable firmware update boundaries and simplifies host-side sector management logic. All programming and erase operations occur at the sector level - partial-sector writes are not supported, and any unloaded byte within a programmed sector becomes indeterminate.
What is the purpose of the boot block lockout feature in the AT29BV010A-15TU?
The boot block lockout feature in the AT29BV010A-15TU provides hardware-enforced write protection for two dedicated 8K-byte memory regions - the lowest 8KB (addresses 00000h–01FFFh) and highest 8KB (addresses 1E000h–1FFFFh). Once activated via a seven-command sequence, these blocks become permanently read-only; no further erase or program operations are possible, ensuring bootloader integrity even during field firmware updates elsewhere in the device.
Can the AT29BV010A-15TU be used in a 5V system interface?
The AT29BV010A-15TU supports mixed-voltage interfacing: its address and control inputs (A0–A16, CE, OE, WE) tolerate 0–5.5V logic levels when powered from 2.7V–3.6V, enabling direct connection to 5V microcontrollers without level shifters. However, I/O0–I/O7 are strictly limited to 0–(VCC + 0.6V), so 5V-tolerant I/O drivers or external clamping is required if driving the data bus from 5V sources.
AT29BV010A-15TU 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:
- 150 ns
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TSOP
AT29BV010A-15TU FAQ
1.How can I place an order for AT29BV010A-15TU through Aetrix?
Please submit a Request for Quotation (RFQ) for AT29BV010A-15TU 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 AT29BV010A-15TU reliable?
The price and inventory of AT29BV010A-15TU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT29BV010A-15TU is usually 5 days.
3.What payment methods are accepted for AT29BV010A-15TU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT29BV010A-15TU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT29BV010A-15TU?
AT29BV010A-15TU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT29BV010A-15TU 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 AT29BV010A-15TU?
For technical support, including AT29BV010A-15TU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT29BV010A-15TU requirements.
6.How does Aetrix verify that AT29BV010A-15TU is sourced from the original manufacturer or authorized distributors?
All AT29BV010A-15TU 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 AT29BV010A-15TU meets industry standards.
7.What is the process for return or replacement of AT29BV010A-15TU?
All AT29BV010A-15TU units undergo pre-shipment inspection (PSI). If there is an issue with AT29BV010A-15TU, 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 AT29BV010A-15TU part is unused and in its original packaging.
Return procedure for AT29BV010A-15TU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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