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Microchip Technology AT29C010A-12PC
- Part No.:
- AT29C010A-12PC
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-DIP (0.600", 15.24mm)
- Datasheet:
-
AT29C010A-12PC.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32DIP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
AT29C010A-12PC from Atmel is a 5V-only, 1 Mbit (128K × 8) Flash memory IC designed for in-system reprogrammability in embedded boot code and firmware storage applications. It delivers 120 ns read access time, supports sector-based programming of 128-byte blocks, integrates hardware and software data protection, and operates across industrial temperature range (–40°C to +85°C).
For engineers reviewing the AT29C010A-12PC datasheet, AT29C010A-12PC pinout, AT29C010A-12PC application, or AT29C010A-12PC equivalent, key selection considerations include its 120 ns access timing, dual 8K boot block lockout capability, 10,000-cycle endurance, CMOS/TTL-compatible I/O, and PDIP-32 packaging with VCC = 5V ±10% operation.
Technical Context
The AT29C010A-12PC implements sector erase-and-program architecture with 1024 independent 128-byte sectors, internal address/data latches for full-sector byte loading, and automatic internal control timer for erase-and-program sequencing. It uses standard parallel interface timing with CE/OE/WE control logic and supports both hardware and software data protection mechanisms.
Its boot block architecture isolates two 8K-byte regions-located at lowest and highest addresses-for independent programming lockout, enabling secure system boot code storage. Data polling on I/O7 and toggle-bit detection on I/O6 provide real-time program cycle status without requiring external wait states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (131,072 × 8), organized as 128K words × 8 bits - defines maximum firmware image size and address space required in host system. |
| Read Access Time | 120 ns - determines minimum bus cycle time for reliable instruction fetch or data read in microcontroller-based systems. |
| Supply Voltage | 5V ±10% - enables direct compatibility with legacy 5V logic families without level-shifting circuitry. |
| Sector Size | 128 bytes per sector - constrains firmware update granularity and requires host software to manage partial-sector writes via buffer reload. |
| Endurance | >10,000 program/erase cycles per sector - supports field-upgradable firmware with long-term reliability in industrial deployments. |
| Standby Current | 100 µA (CMOS), 300 µA (industrial temp) - enables low-power retention mode in battery-backed or energy-sensitive applications. |
| Operating Temperature | –40°C to +85°C - qualifies for use in industrial control panels, automotive body electronics, and outdoor embedded equipment. |
Pinout & Package
AT29C010A-12PC is supplied in a 32-lead Plastic Dual Inline Package (PDIP), 0.600" wide (package code 32P6), with through-hole mounting and industry-standard pin spacing (2.54 mm). Pin 1 is located at bottom-left corner when notch faces upward.
| 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 interface for read data output or program data input; TTL/CMOS compatible voltage thresholds. |
| CE | Chip Enable | Active-low chip select; must be low for read or program operations; high disables outputs and enters standby mode. |
| OE | Output Enable | Active-low output control; used with CE to gate read data onto bus and prevent contention during shared-bus operation. |
| WE | Write Enable | Active-low write strobe; initiates byte load or sector program cycle when CE is low and OE is high. |
| VCC | Power Supply | +5V ±10% supply input; powers core logic and I/O buffers; internal VCC sense prevents programming below 3.8V. |
| GND | Ground Reference | Signal and power ground reference plane; decoupling capacitor placement near this pin is critical for noise immunity. |
| NC | No Connect | Unbonded pins (positions 1, 2, 31, 32 in PDIP); must remain unconnected to avoid unintended coupling or latch-up. |
Key Features
| Feature | Design Value |
|---|---|
| Two Independent Boot Blocks | 8K-byte lower and upper memory regions support programmable lockout-enables secure bootloader storage immune to accidental overwrite. |
| Software Data Protection | Three-command unlock sequence (AAh/55h/A0h) required before each sector program cycle-prevents spurious writes during power transients or noise events. |
| Data Polling & Toggle Bit | I/O7 complement detection and I/O6 toggling provide asynchronous, bus-compatible program completion signaling-eliminates need for fixed delay timers in host firmware. |
| Hardware Program Inhibit | VCC sense, 5 ms power-on delay, and noise filtering (<15 ns pulse rejection) ensure robustness against brown-out, ESD, and EMI-induced false writes. |
| Fast Sector Programming | 10 ms typical internal erase-and-program cycle per 128-byte sector-reduces firmware update latency compared to full-chip erase methods. |
Applications
| Industrial PLC Firmware Storage | Legacy Embedded System Boot Code |
|---|---|
Use Scenario: Storing firmware images and configuration parameters in programmable logic controllers deployed in factory automation environments with wide ambient temperature swings. IC Role / Device Role / Timing Role: Nonvolatile program memory providing deterministic 120 ns instruction fetch timing for real-time ladder logic execution. Use Value: Industrial temperature rating (–40°C to +85°C) and 10,000-cycle endurance ensure multi-year field reliability without recalibration or replacement. |
Use Scenario: Hosting boot ROM code for 8-bit and 16-bit microcontrollers in medical diagnostic instruments where firmware integrity is safety-critical. IC Role / Device Role / Timing Role: Secure boot memory with independently lockable 8K-byte blocks preventing corruption of initialization routines during field updates. Use Value: Hardware + software data protection layers guarantee that only authenticated commands can modify boot sectors-meeting IEC 62304 software lifecycle requirements. |
| Automotive Body Control Module | Point-of-Sale Terminal Configuration Memory |
Use Scenario: Retaining calibration data and feature-enable flags in vehicle door modules, seat controllers, and lighting ECUs subject to automotive qualification stress. IC Role / Device Role / Timing Role: Parameter storage device interfacing directly to 5V MCU buses without level shifters, leveraging CMOS/TTL compatibility. Use Value: 5V ±10% supply tolerance accommodates automotive battery voltage fluctuations (9–16 V) via external regulator, reducing BOM count. |
Use Scenario: Storing localized language packs, tax tables, and peripheral driver configurations in retail terminals operating in commercial environments. IC Role / Device Role / Timing Role: Field-upgradable firmware repository supporting over-the-air or USB-based updates without hardware modification. Use Value: Sector-based programming allows incremental updates to specific function modules-minimizing downtime and avoiding full memory erasure risks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AM29LV010B-120EC | 3V/5V tolerant supply (2.7–5.5V), 120 ns access, 1 Mbit density, same PDIP-32 package | Supports mixed-voltage systems; lacks dedicated boot block lockout but offers CFI-compliant command set | Select when migrating to lower-voltage designs or requiring JEDEC-standard command interfaces. |
| MX29LV160CBTI-12G | 3V-only supply (2.7–3.6V), 16 Mbit density, 120 ns access, TSOP-48 package | Higher capacity and smaller footprint; boot block organization differs (top/bottom 32K), no PDIP option | Select for space-constrained designs needing >1 Mbit or 3V-native operation; requires PCB redesign due to package and voltage mismatch. |
Compared with AM29LV010B-120EC and MX29LV160CBTI-12G, the AT29C010A-12PC provides guaranteed 5V-only operation with integrated boot block lockout-making it optimal for legacy 5V industrial systems where pinout stability, firmware security, and drop-in replacement are prioritized over voltage flexibility or density scaling.
Availability
AT29C010A-12PC is available at Aetrix Electronics and suitable for industrial PLC firmware storage, legacy embedded system boot code, automotive body control module parameter retention, point-of-sale terminal configuration memory, and medical device calibration data logging requiring stable component supply across extended product lifecycles.
Supply support for AT29C010A-12PC 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, nonvolatile memory, and secure authentication devices for industrial, automotive, and consumer applications.
The AT29C010A-12PC belongs to Atmel's legacy parallel Flash memory product line, engineered specifically for 5V embedded systems requiring in-system reprogrammability, secure boot code isolation, and long-term data retention without external high-voltage programming circuitry.
FAQ
What is the maximum operating temperature range for the AT29C010A-12PC?
The AT29C010A-12PC is rated for industrial temperature operation from –40°C to +85°C. This specification is confirmed in the DC and AC Operating Range table of the official datasheet (Rev. 0394F–FLASH–02/03), where the "AT29C010A-12" variant explicitly lists –40°C to +85°C for both commercial and industrial versions. The device maintains full functionality-including 120 ns read access and 10 ms sector programming-across this full range.
Does the AT29C010A-12PC support in-system programming without external high-voltage supplies?
Yes, the AT29C010A-12PC supports true 5V-only in-system programming. No external high-voltage (e.g., 12V) supply is required. All programming commands-including sector erase, byte load, and software data protection enable/disable-are executed using standard 5V logic levels applied to CE, WE, OE, and address/data pins, as defined in the Device Operation and Software Algorithms sections of the datasheet.
How many sectors does the AT29C010A-12PC contain, and what is the size of each sector?
The AT29C010A-12PC contains 1024 independent sectors, each sized at 128 bytes. This is explicitly stated in the Features section ("1024 Sectors (128 Bytes/sector)") and reinforced by the sector programming description: "A7 to A16 specify the sector address," yielding 2¹⁰ = 1024 unique sector addresses. Each sector must be loaded entirely before internal programming begins.
What package type is used for the AT29C010A-12PC, and how is pin 1 identified?
The AT29C010A-12PC uses a 32-lead Plastic Dual Inline Package (PDIP), 0.600" wide (package code 32P6). Pin 1 is located at the bottom-left corner of the package when the notch on the top edge is oriented upward. This mechanical identification is consistent across all PDIP variants and is documented in the "32P6 – PDIP" drawing (page 16 of datasheet Rev. 0394F–FLASH–02/03).
Can the boot blocks of the AT29C010A-12PC be independently locked, and how is lockout verified?
Yes, the AT29C010A-12PC features two independently programmable boot blocks (first 8K bytes and last 8K bytes), each with separate lockout activation. Lockout status is verified via software product identification mode: reading address 00002H returns FEh if the lower boot block is unlocked or FFh if locked; reading 1FFF2H yields the same codes for the upper boot block. This method is specified in the "Boot Block Lockout Detection" section of the datasheet.
AT29C010A-12PC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 32-DIP (0.600", 15.24mm)
- Packaging:
- Tube
- 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:
- Through Hole
- Supplier Device Package:
- 32-PDIP
AT29C010A-12PC FAQ
1.How can I place an order for AT29C010A-12PC through Aetrix?
Please submit a Request for Quotation (RFQ) for AT29C010A-12PC 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-12PC reliable?
The price and inventory of AT29C010A-12PC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT29C010A-12PC is usually 5 days.
3.What payment methods are accepted for AT29C010A-12PC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT29C010A-12PC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT29C010A-12PC?
AT29C010A-12PC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT29C010A-12PC 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-12PC?
For technical support, including AT29C010A-12PC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT29C010A-12PC requirements.
6.How does Aetrix verify that AT29C010A-12PC is sourced from the original manufacturer or authorized distributors?
All AT29C010A-12PC 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-12PC meets industry standards.
7.What is the process for return or replacement of AT29C010A-12PC?
All AT29C010A-12PC units undergo pre-shipment inspection (PSI). If there is an issue with AT29C010A-12PC, 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-12PC part is unused and in its original packaging.
Return procedure for AT29C010A-12PC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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