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Microchip Technology AT29C010A-12TC
- Part No.:
- AT29C010A-12TC
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT29C010A-12TC.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,950
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Product details
Overview
AT29C010A-12TC 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, 10 ms sector program cycle time, 10,000 write/erase endurance, hardware/software data protection, and two 8K-byte boot blocks with independent programming lockout - deployed in industrial control firmware updates and BIOS storage.
For engineers reviewing the AT29C010A-12TC datasheet, AT29C010A-12TC pinout, AT29C010A-12TC application, or AT29C010A-12TC equivalent, key selection considerations include sector-based reprogrammability, 5V-only operation without high-voltage programming, CMOS/TTL compatibility, boot block lockout behavior, and TSOP-32 packaging for space-constrained PCB layouts.
Technical Context
The AT29C010A-12TC implements sector-erase architecture with 1024 × 128-byte sectors, internal address/data latches per sector, and automatic erase-then-program sequencing controlled by an on-chip timer. It supports byte-load programming via WE or CE pulse control with strict 150 µs inter-byte timing.
Hardware data protection includes VCC sense (<3.8 V inhibits programming), 5 ms power-on delay, OE/CE/WE inhibit logic, and 15 ns noise filtering; software protection uses three-byte command sequences (e.g., AA–55–A0) to enable/disable write access, with persistent state across power cycles.
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) - compatible with 8 MHz Z80 or 68K bus timing without wait states. |
| Sector Size | 128 bytes per sector - enables fine-grained firmware patching without erasing entire device. |
| Program Cycle Time | 10 ms per sector - deterministic internal timing eliminates need for external polling delay circuits. |
| Endurance | >10,000 program/erase cycles per sector - supports field-upgradable industrial firmware with multi-year service life. |
| Supply Voltage | 5 V ± 10% - operates directly from standard logic rail without dedicated programming voltage generator. |
| Standby Current | 100 µA (CMOS, commercial temp) - enables low-power retention in battery-backed systems. |
Pinout & Package
AT29C010A-12TC is packaged in a 32-lead Thin Small Outline Package (TSOP Type I, 8 × 20 mm, JEDEC MO-142 BD), pin-compatible with industry-standard 32-pin Flash memory footprints. Pin 1 identifier is marked by a beveled corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus supporting full 131,072-word addressing; A0–A6 select byte within 128-byte sector. |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit parallel interface for read, byte-load, and program operations; 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 and disables internal logic to minimize standby current. |
| OE | Output Enable | Active-low output control; used with CE to manage bus contention during read cycles; must be high during programming. |
| WE | Write Enable | Active-low write strobe; initiates byte load or sector program; combined with CE for dual-control programming safety. |
| VCC / GND | Power Supply | Single 5 V supply with CMOS-level quiescent current (100 µA); no separate VPP required for programming. |
| NC | No Connect | Two unconnected pins (positions 6 and 9 in TSOP top view) - must remain floating per design; not bonded internally. |
Key Features
| Feature | Design Value |
|---|---|
| Boot Block Lockout | Two independent 8K-byte blocks (0x00000–0x01FFF and 0x1E000–0x1FFFF) can be permanently write-locked via 7-byte algorithm - secures bootloader integrity against accidental overwrite. |
| Software Data Protection | Three-byte unlock sequence (AA–55–A0) required before each sector program - prevents spurious writes during power transients or noise events. |
| DATA Polling & TOGGLE Bit | I/O7 complement indicates active programming; I/O6 toggling provides alternate end-of-cycle detection - eliminates need for fixed delay timers in host firmware. |
| Hardware Program Inhibit | VCC sense, 5 ms power-on delay, and OE/CE/WE logic gating prevent unintended writes - meets IEC 61000-4-4 immunity requirements for industrial environments. |
| 5V-Only Reprogrammability | No external 12 V VPP supply needed; all commands executed at VCC = 5 V ± 10% - simplifies board-level power design and reduces BOM count. |
Applications
| Industrial PLC Firmware Storage | Embedded System Bootloader |
|---|---|
|
Use Scenario: Storing ladder logic programs and I/O configuration maps in programmable logic controllers subject to frequent field updates. IC Role / Device Role / Timing Role: Nonvolatile code storage with sector-level reprogrammability and boot block lockout to preserve core runtime engine. Use Value: Enables safe over-the-air firmware patches without risking bootloader corruption; 10,000-cycle endurance supports >5 years of scheduled maintenance cycles. |
Use Scenario: Holding boot code for ARM Cortex-M3 microcontrollers in medical diagnostic equipment requiring certified boot integrity. IC Role / Device Role / Timing Role: Primary boot memory mapped at reset vector; lower 8K boot block locked to prevent unauthorized modification. Use Value: Hardware-enforced write protection ensures bootloader authenticity; 120 ns read access meets tight boot-time timing budgets. |
| Point-of-Sale Terminal Configuration | Telecom Line Card Parameter Storage |
|
Use Scenario: Retaining tax rate tables, language packs, and merchant-specific settings across power cycles in retail terminals. IC Role / Device Role / Timing Role: Data EEPROM replacement with faster write performance and higher density than serial EEPROMs. Use Value: 10 ms sector programming enables sub-second configuration saves; CMOS standby current extends battery backup duration. |
Use Scenario: Storing line calibration coefficients and protocol stack parameters in carrier-grade DSLAM line cards operating in extended temperature ranges. IC Role / Device Role / Timing Role: Industrial-temperature (-40°C to +85°C) nonvolatile memory interfaced to TI TMS320C54x DSP via parallel bus. Use Value: TSOP-32 package fits dense telecom PCB layouts; hardware data protection prevents parameter corruption during hot-swap events. |
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 | 3.3 V core (5 V tolerant I/O), 16 Mbit density, 70 ns access, CFI-compliant command set | Requires level-shifting for 5 V-only systems; larger capacity suits complex bootloaders but increases cost per bit | Select when migrating to lower-voltage platforms or needing CFI-standardized firmware update protocols |
| EN29LV160AB-70TCP | 3.3 V supply, 16 Mbit, 70 ns, boot block architecture (top/bottom configurable), single power supply | Not 5 V compatible; boot block layout differs (16K × 2 vs. 8K × 2); lacks hardware VCC sense | Prefer for new 3.3 V designs where backward 5 V compatibility is unnecessary and higher density justifies redesign |
Compared with MX29LV160CBTI-70G and EN29LV160AB-70TCP, the AT29C010A-12TC delivers proven 5 V-only operation, simpler power architecture, and direct drop-in compatibility with legacy 8-bit microcontroller buses - making it optimal for cost-sensitive industrial retrofits and long-lifecycle products.
Availability
AT29C010A-12TC is available at Aetrix Electronics and suitable for industrial control systems, embedded bootloader storage, and telecom line card parameter retention requiring stable component supply across extended product lifecycles.
Supply support for AT29C010A-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 fabless semiconductor company specializing in microcontrollers, nonvolatile memory, and secure authentication ICs.
The AT29C010A-12TC belongs to Atmel's legacy parallel Flash memory product line, designed specifically for 5 V embedded systems requiring in-system reprogrammability without high-voltage programming circuitry.
FAQ
What is the maximum read access time specification for AT29C010A-12TC?
The AT29C010A-12TC has a maximum read access time (tACC) of 120 ns under industrial temperature conditions (-40°C to +85°C) at VCC = 5 V ± 10%. This value is guaranteed per the AC Read Characteristics table in the official datasheet revision 0394F–FLASH–02/03 and applies specifically to the -12 speed grade. The "12" in AT29C010A-12TC denotes this 120 ns timing bin.
Does AT29C010A-12TC require a high-voltage programming supply?
No, the AT29C010A-12TC operates with 5 V only - no external 12 V VPP supply is needed. All programming commands (sector erase, byte load, software protection enable/disable) execute using standard 5 V logic levels. This eliminates high-voltage generation circuitry and simplifies system design, distinguishing AT29C010A-12TC from older EPROM or early Flash devices.
How many sectors does AT29C010A-12TC contain, and what is the size of each sector?
The AT29C010A-12TC contains 1024 sectors, each 128 bytes in size. This sector structure is explicitly defined in the Features section and confirmed in the Device Operation section of the datasheet. Sector addressing uses A7–A16, while A0–A6 select the byte within the sector - enabling precise firmware patching without full-chip erasure.
What is the purpose of the two NC pins on AT29C010A-12TC in TSOP-32 package?
In the TSOP-32 package (32T), pins 6 and 9 are designated NC (No Connect) and must remain unconnected on the PCB. These pins are not bonded to the die and serve mechanical or package alignment functions only. Connecting them may cause undefined behavior or damage; the datasheet explicitly states they are unused and should be left floating.
Can AT29C010A-12TC be used in industrial temperature applications?
Yes, the AT29C010A-12TC is rated for industrial temperature operation from -40°C to +85°C, as confirmed in the DC and AC Operating Range table and Ordering Information section. Its ISB1 standby current is specified up to 300 µA in this range, and all AC timing parameters (including tACC = 120 ns) are guaranteed across the full industrial temperature span.
AT29C010A-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:
- 10ms
- Access Time:
- 120 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TSOP
AT29C010A-12TC FAQ
1.How can I place an order for AT29C010A-12TC through Aetrix?
Please submit a Request for Quotation (RFQ) for AT29C010A-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 AT29C010A-12TC reliable?
The price and inventory of AT29C010A-12TC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT29C010A-12TC is usually 5 days.
3.What payment methods are accepted for AT29C010A-12TC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT29C010A-12TC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT29C010A-12TC?
AT29C010A-12TC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT29C010A-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 AT29C010A-12TC?
For technical support, including AT29C010A-12TC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT29C010A-12TC requirements.
6.How does Aetrix verify that AT29C010A-12TC is sourced from the original manufacturer or authorized distributors?
All AT29C010A-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 AT29C010A-12TC meets industry standards.
7.What is the process for return or replacement of AT29C010A-12TC?
All AT29C010A-12TC units undergo pre-shipment inspection (PSI). If there is an issue with AT29C010A-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 AT29C010A-12TC part is unused and in its original packaging.
Return procedure for AT29C010A-12TC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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