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Microchip Technology AT29C010A-12TI
- Part No.:
- AT29C010A-12TI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT29C010A-12TI.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,234
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Product details
Overview
AT29C010A-12TI from Atmel is a 1 Mbit (128K × 8) 5V-only Flash memory IC used for nonvolatile code and data storage in embedded systems. It features 70 ns read access time, sector-based reprogramming with 1024 × 128-byte sectors, hardware/software data protection, and dual 8K-byte boot blocks with independent programming lockout - deployed in industrial firmware storage and BIOS/UEFI boot loaders.
For engineers reviewing the AT29C010A-12TI datasheet, AT29C010A-12TI pinout, AT29C010A-12TI application, or AT29C010A-12TI equivalent, key selection considerations include its 120 ns max read access timing, industrial temperature range (–40°C to +85°C), TSOP/PLCC/PDIP package compatibility, sector erase architecture, and boot-block lockout behavior for secure firmware partitioning.
Technical Context
The AT29C010A-12TI implements a sector-programmable Flash architecture where each 128-byte sector is erased and programmed in a single internal cycle using on-chip control logic and timer. Address latching occurs on falling CE or WE edges, and data loading obeys strict 150 µs inter-byte timing constraints.
It supports three distinct operational modes: standard EPROM-like read (CE/OE low, WE high), byte-load programming (WE or CE pulse with OE high), and software-controlled functions including product identification (0x1F/0xD5), data protection enable/disable, and boot block lockout - all executed via specific address/data command sequences at 5V only.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (131,072 × 8), organized as 128K words × 8 bits - sufficient for full microcontroller boot code and configuration tables. |
| Read Access Time | 120 ns max (tACC), enabling direct interface with 8-bit MCUs running at ≤8 MHz without wait states. |
| Supply Voltage | Single 5V ±10% - eliminates need for charge pumps or auxiliary voltage rails during programming or read. |
| Endurance | >10,000 program/erase cycles per sector - supports field firmware updates over multi-year product lifecycle. |
| Standby Current | 300 µA max (industrial temp) - enables low-power retention in battery-backed or energy-constrained systems. |
| Operating Temp | –40°C to +85°C - qualified for industrial control, automotive body electronics, and outdoor communications equipment. |
| Boot Blocks | Two 8K-byte regions (lowest and highest addresses) with independent software lockout - prevents accidental overwrite of critical startup code. |
Pinout & Package
AT29C010A-12TI is supplied in a 32-lead Thin Small Outline Package (TSOP, Type I, 8 × 20 mm, JEDEC MO-142 BD), with gull-wing leads and pin 1 marked by notch or bevel. Pin functions are electrically identical across TSOP, PLCC, and PDIP variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus supporting full 131,072-word addressing; A7–A16 select sector, A0–A6 select byte within sector. |
| I/O0–I/O7 | Bidirectional Data Bus | CMOS/TTL-compatible 8-bit data path; supports DATA polling on I/O7 and toggle-bit detection on I/O6 during programming. |
| CE | Chip Enable | Active-low chip select; must be stable low during read or byte load; inhibits programming if held high. |
| OE | Output Enable | Active-low output control; high-Z state when high; must be high during programming to avoid bus contention. |
| WE | Write Enable | Active-low write strobe; controls byte loading and initiates internal sector erase/program sequence. |
| VCC, GND | Power Supply | Single 5V supply; CMOS standby current <300 µA ensures minimal quiescent power draw in sleep modes. |
| NC | No Connect | Two NC pins (positions vary by package); must remain unconnected - no internal function or pull-up/down. |
Key Features
| Feature | Design Value |
|---|---|
| Sector Program Architecture | 1024 independent 128-byte sectors allow granular firmware updates without erasing entire memory - reduces field update risk and time. |
| Hardware Data Protection | VCC sense (<3.8V inhibit), 5 ms power-on delay, and noise filtering (15 ns pulse rejection) prevent spurious writes during brown-out or EMI events. |
| Software Data Protection | Three-command unlock sequence (0x5555/0x2AAA/0xA0) required before any sector program - enforces intentional firmware modification. |
| Boot Block Lockout | Independent lock enable for first/last 8K bytes via 7-command algorithm; once set, blocks all erase/program operations in those regions permanently. |
| End-of-Program Detection | DATA polling (I/O7 complement → true data) and toggle-bit (I/O6 toggling → stable) provide deterministic, bus-friendly status reporting without external timers. |
Applications
| Industrial PLC Firmware Storage | Embedded Network Router Boot Loader |
|---|---|
|
Use Scenario: Storing firmware images and configuration parameters in programmable logic controllers operating in factory-floor environments with wide temperature swings and electrical noise. IC Role / Device Role / Timing Role: Nonvolatile code storage with 120 ns read access and industrial temperature rating; boot block lockout secures startup routines against corruption. Use Value: Enables reliable cold-start operation and in-field firmware upgrades without requiring external programming hardware or system downtime. |
Use Scenario: Hosting primary boot loader and fail-safe recovery image in enterprise-grade network routers deployed in telecom infrastructure cabinets. IC Role / Device Role / Timing Role: Dual-boot memory with independently lockable 8K boot blocks - one for main firmware, one for recovery - accessed via standard parallel bus. Use Value: Guarantees boot integrity even after partial flash corruption; supports atomic firmware swaps using sector-level erase/program granularity. |
| Medical Diagnostic Equipment Configuration | Automotive Body Control Module (BCM) |
|
Use Scenario: Retaining calibration data, user preferences, and safety-critical device settings in portable ultrasound and imaging systems requiring long-term data retention. IC Role / Device Role / Timing Role: Low-power (300 µA standby) nonvolatile storage with >10,000 endurance cycles - supports frequent parameter updates during service intervals. Use Value: Eliminates battery-backed SRAM; maintains data integrity across power cycles and thermal stress without refresh overhead. |
Use Scenario: Storing vehicle-specific configuration maps, lighting profiles, and diagnostic event logs in automotive BCMs exposed to under-hood thermal cycling. IC Role / Device Role / Timing Role: Industrial-grade Flash with –40°C to +85°C operation and hardware VCC-sense protection - prevents inadvertent writes during engine cranking voltage sag. Use Value: Meets AEC-Q100-relevant reliability requirements for infotainment-adjacent modules without requiring additional voltage monitoring circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX29LV160CBTI-70G | 3.3V core, 16 Mbit density, 70 ns access, bottom-boot configuration, no software data protection | Requires level-shifting for 5V systems; larger capacity suits complex bootloaders but increases cost and layout area | Select when migrating to 3.3V designs or needing higher density; verify boot block alignment and absence of software lockout matches system security needs |
| SST39VF020-70-4C-NHE | 3.3V supply, 2 Mbit, 70 ns access, single 8K boot block, no hardware VCC-sense protection | Lacks dual boot blocks and voltage-sense programming inhibit - less robust in noisy or unstable power environments | Prefer for cost-sensitive 3.3V applications where simplified boot architecture suffices and external power monitoring is acceptable |
Compared with MX29LV160CBTI-70G and SST39VF020-70-4C-NHE, the AT29C010A-12TI offers unique 5V-only operation, dual independently lockable boot blocks, and integrated VCC-sense programming inhibition - making it the only option among the three qualified for legacy 5V industrial control systems requiring guaranteed write safety during brown-out conditions.
Availability
AT29C010A-12TI is available at Aetrix Electronics and suitable for industrial PLC firmware storage, embedded network router boot loaders, and automotive body control module applications requiring stable component supply, long-lifecycle support, and verified industrial temperature performance.
Supply support for AT29C010A-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 devices for industrial, automotive, and consumer applications.
The AT29C010A-12TI belongs to Atmel's legacy 5V Flash memory product line, designed specifically for in-system reprogrammability in 8-bit and 16-bit embedded systems requiring robust, low-cost nonvolatile storage with hardware-enforced write protection.
FAQ
What is the maximum read access time specified for AT29C010A-12TI?
The AT29C010A-12TI has a maximum read access time (tACC) of 120 ns, as confirmed by its ordering code suffix "-12". This value applies across the full industrial temperature range (–40°C to +85°C) and with VCC = 5V ±10%. The specification ensures compatibility with 8-bit microcontrollers operating at up to 8 MHz without external wait-state generation, and is validated under worst-case AC test conditions per the official Atmel datasheet Rev. 0394F.
Does AT29C010A-12TI support in-system programming without high-voltage supplies?
Yes, the AT29C010A-12TI supports full in-system programming using only a single 5V supply - no external 12V or 12.5V programming voltage is required. All sector erase and program operations are initiated via standard 5V logic-level commands (e.g., 0x5555/0x2AAA sequences), and internal charge pumps generate necessary high voltages. This capability is intrinsic to the AT29C010A-12TI's architecture and eliminates the need for dedicated programming hardware or voltage translation circuitry.
How many boot blocks does AT29C010A-12TI have, and can they be locked independently?
The AT29C010A-12TI contains two 8K-byte boot blocks: one at the lowest address (0x00000–0x01FFF) and one at the highest address (0x1E000–0x1FFFF). Each block supports independent software lockout activation via a distinct 7-command algorithm. Once enabled, lockout is permanent for that block - preventing all erase and program operations - while leaving the other block and remaining memory fully reprogrammable. This behavior is documented in the Boot Block Lockout Feature Enable Algorithm section of the AT29C010A-12TI datasheet.
What methods does AT29C010A-12TI provide to detect end-of-program completion?
The AT29C010A-12TI provides two hardware-supported methods: DATA polling (monitoring I/O7 for transition from complement to true data) and Toggle Bit detection (observing I/O6 toggling until it stabilizes). Both methods operate asynchronously and require no external clock or timer. DATA polling is typically used for precise timing-critical detection, while Toggle Bit allows polling any address - both are fully functional during the internal 10 ms program cycle and are defined in the AT29C010A-12TI AC characteristics table and waveform diagrams.
Is AT29C010A-12TI compatible with standard EPROM socket footprints?
Yes, the AT29C010A-12TI is pin-compatible with industry-standard 27C010 and 27C020 EPROMs in all supported packages (TSOP, PLCC, PDIP), sharing identical pinouts, signal definitions, and read-mode timing. Its EPROM emulation mode requires no changes to existing PCB layouts or address/data bus routing - only minor firmware adjustments may be needed to accommodate sector-based programming instead of full-chip erase. This backward compatibility is explicitly stated in Atmel's application notes for the AT29C010A-12TI family.
AT29C010A-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:
- 10ms
- Access Time:
- 120 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TSOP
AT29C010A-12TI FAQ
1.How can I place an order for AT29C010A-12TI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT29C010A-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 AT29C010A-12TI reliable?
The price and inventory of AT29C010A-12TI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT29C010A-12TI is usually 5 days.
3.What payment methods are accepted for AT29C010A-12TI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT29C010A-12TI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT29C010A-12TI?
AT29C010A-12TI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT29C010A-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 AT29C010A-12TI?
For technical support, including AT29C010A-12TI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT29C010A-12TI requirements.
6.How does Aetrix verify that AT29C010A-12TI is sourced from the original manufacturer or authorized distributors?
All AT29C010A-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 AT29C010A-12TI meets industry standards.
7.What is the process for return or replacement of AT29C010A-12TI?
All AT29C010A-12TI units undergo pre-shipment inspection (PSI). If there is an issue with AT29C010A-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 AT29C010A-12TI part is unused and in its original packaging.
Return procedure for AT29C010A-12TI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT29C010A-12TI Tags
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