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Microchip Technology AT29C010A-70PI
- Part No.:
- AT29C010A-70PI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-DIP (0.600", 15.24mm)
- Datasheet:
-
AT29C010A-70PI.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,951
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Product details
Overview
AT29C010A-70PI from Atmel is a 5V-only, 1 Mbit (128K × 8) Flash memory IC designed for in-system reprogrammability in embedded boot code storage. It delivers 70 ns read access time, supports sector-based programming (1024 × 128-byte sectors), features dual 8K-byte boot blocks with independent lockout, and operates across industrial temperature range (–40°C to +85°C). It is commonly used in microcontroller-based systems requiring field-upgradable firmware with hardware/software data protection.
For engineers reviewing the AT29C010A-70PI datasheet, AT29C010A-70PI pinout, AT29C010A-70PI application, or AT29C010A-70PI equivalent, key selection considerations include its 70 ns access timing, 10 ms sector program cycle, CMOS/TTL-compatible I/O, dual boot block lockout capability, and industrial-grade reliability for legacy industrial control and telecom equipment.
Technical Context
The AT29C010A-70PI implements a sector-erase-and-program architecture with internal address/data latches for 128-byte pages, eliminating external bus hold requirements during programming. Its dual-line chip enable (CE) and output enable (OE) control enables flexible bus contention management during read operations.
Hardware data protection includes VCC sense (<3.8 V inhibits programming), 5 ms power-on delay, and noise filtering on WE/CE inputs; software protection uses a three-byte command sequence (AAh/55h/A0h) to enable/disable write access. Boot block lockout is activated via a seven-command algorithm 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 - supports full firmware image storage for 8-bit/16-bit MCUs. |
| Read Access Time | 70 ns - enables direct execution from flash (XIP) in timing-critical embedded boot loaders. |
| Sector Size & Count | 128 bytes × 1024 sectors - allows fine-grained firmware updates without erasing entire device. |
| Program Cycle Time | 10 ms per sector - deterministic reprogramming latency critical for field upgrade protocols. |
| Supply Voltage | 5 V ± 10% - single-rail compatibility with legacy 5V logic and microcontroller buses. |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments including factory automation and base station control. |
| Endurance | >10,000 program/erase cycles per sector - supports long-term field maintenance of configuration or calibration data. |
| Standby Current | 100 µA (CMOS) - low quiescent power essential for battery-backed or energy-sensitive systems. |
Pinout & Package
AT29C010A-70PI is supplied in a 32-lead Plastic Dual Inline Package (PDIP), 0.600" wide (package code 32P6), with standard through-hole mounting and JEDEC-compliant footprint.
| 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 compatible with 8051, Z80, and 68K family microcontrollers; supports DATA polling on I/O7 and toggle bit on I/O6. |
| CE | Chip Enable | Active-low global enable; when high, places outputs in high-impedance state - prevents bus contention during multi-device sharing. |
| OE | Output Enable | Active-low read control; used with CE for dual-line read gating - allows selective memory access without disabling entire chip. |
| WE | Write Enable | Active-low programming control; initiates byte load or sector program cycle; must be high during reads to avoid inadvertent writes. |
| VCC | Power Supply | +5 V ± 10% supply input; powers core logic and I/O buffers; internally monitored for hardware write inhibition below 3.8 V. |
| GND | Ground Reference | Signal and power return path; decoupling capacitor required at VCC pin per datasheet layout guidelines. |
| NC | No Connect | Two unconnected pins (positions 3 and 30 in PDIP); must remain floating - no external connection permitted. |
Key Features
| Feature | Design Value |
|---|---|
| Single 5V Reprogramming | Eliminates need for +12V programming voltage - simplifies system power design and enables in-circuit firmware updates without external HV generators. |
| Dual Boot Block Lockout | Independent 8K-byte lockout for lower (0x0000–0x1FFF) and upper (0x1E000–0x1FFFF) memory regions - protects bootloader and recovery code from accidental overwrite. |
| DATA Polling & Toggle Bit | I/O7 complement detection and I/O6 toggling provide real-time, hardware-verified program completion status - removes need for fixed-delay timing loops in host firmware. |
| Hardware + Software Data Protection | VCC sensing, 5 ms power-on delay, and 3-byte unlock sequence prevent spurious writes during power transients or noise events - ensures data integrity in electrically noisy industrial settings. |
| CMOS/TTL I/O Compatibility | Input thresholds (VIL = 0.8 V, VIH = 2.0 V) and output drive (VOH = 2.4 V @ –400 µA) meet both CMOS and TTL logic families - enables direct interfacing with mixed-voltage legacy systems. |
Applications
| Industrial PLC Firmware Storage | Telecom Line Card Boot Code |
|---|---|
|
Use Scenario: Storing boot firmware and configuration parameters in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Nonvolatile boot memory providing XIP-capable instruction fetch with 70 ns access to initialize CPU and peripherals at power-on. Use Value: Dual boot block lockout prevents corruption of safety-critical startup routines during field firmware upgrades, ensuring deterministic system recovery. |
Use Scenario: Holding boot loader and FPGA configuration bitstreams in carrier-grade DSLAM and optical line terminal line cards. IC Role / Device Role / Timing Role: Sector-erasable Flash memory enabling hot-swappable module firmware updates without chassis reboot. Use Value: 10 ms sector programming and DATA polling allow host processor to initiate background updates while maintaining real-time traffic forwarding. |
| Legacy Medical Device Calibration Storage | Automotive Diagnostic Tool Firmware |
|
Use Scenario: Retaining calibrated sensor offsets and diagnostic lookup tables in Class II medical instruments with 10+ year service life. IC Role / Device Role / Timing Role: High-endurance (10,000-cycle) nonvolatile memory storing infrequently updated but mission-critical calibration data. Use Value: Industrial temperature rating (–40°C to +85°C) and 100 µA standby current ensure reliable retention in unheated storage cabinets and portable battery-powered units. |
Use Scenario: Hosting firmware for handheld OBD-II diagnostic tools used in automotive repair shops and dealer service centers. IC Role / Device Role / Timing Role: Field-upgradable Flash memory supporting secure firmware patches via USB-connected host PC. Use Value: Hardware data protection (VCC sense + noise filtering) prevents accidental reprogramming during vehicle battery jump-starts or alternator load dumps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AM29LV010B-70JC | 3.3 V core (5 V tolerant I/O), 70 ns access, 1 Mbit density, JEDEC-standard command set - requires level-shifting for pure 5 V systems. | Targeted at newer 3.3 V designs; lacks dedicated boot block lockout - relies on software-defined sector protection. | Select if migrating to lower-power 3.3 V architecture; verify host controller supports AMD-style command sequences. |
| MX29LV160BTC-70G | 3.3 V supply, 16 Mbit density, 70 ns access, top/bottom boot sectors, CFI-compliant - physically larger (48-pin TSOP) and higher capacity. | Designed for modern embedded Linux bootloaders (U-Boot); supports wider data paths and faster sequential reads. | Choose for scalability beyond 1 Mbit or CFI-based auto-detection; not drop-in due to voltage, pin count, and sector map differences. |
Compared with AM29LV010B-70JC and MX29LV160BTC-70G, the AT29C010A-70PI offers native 5 V operation and hardware-enforced boot block lockout - making it uniquely suitable for maintaining legacy 5 V industrial systems where firmware integrity and electrical compatibility are prioritized over density or low-voltage operation.
Availability
AT29C010A-70PI is available at Aetrix Electronics and suitable for industrial control panels, telecom line cards, and legacy medical instrumentation requiring stable component supply and long-term obsolescence support.
Supply support for AT29C010A-70PI 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-70PI belongs to Atmel's legacy 5V Flash memory product line, engineered specifically for cost-sensitive, reliability-critical embedded systems needing field-upgradable boot code storage without high-voltage programming infrastructure.
FAQ
What is the maximum operating temperature range for the AT29C010A-70PI?
The AT29C010A-70PI 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), and applies to all electrical characteristics including 70 ns access time and 10 ms sector programming. The device maintains full functionality across this range without derating.
Does the AT29C010A-70PI support true 5V-only programming without external high voltage?
Yes, the AT29C010A-70PI supports true 5V-only reprogramming - no external +12V or +12.5V supply is required. Programming is initiated using standard 5V logic levels and a defined command sequence (e.g., AAh/55h/A0h for software protection enable). This is explicitly stated in the "Features" section and verified in the "Device Operation" and "Software Data Protection Enable Algorithm" sections of the datasheet.
How does the boot block lockout feature work on the AT29C010A-70PI?
The AT29C010A-70PI contains two independent 8K-byte boot blocks (lower: 0x0000–0x1FFF; upper: 0x1E000–0x1FFFF) that can each be permanently locked against programming via a seven-command algorithm. Once enabled, the locked block cannot be erased or written - even by chip erase - and lock status is detectable via software product identification mode reads at addresses 0x0002 (lower) and 0x1FFF2 (upper).
Can the AT29C010A-70PI be used in systems with TTL-level microcontrollers?
Yes, the AT29C010A-70PI features CMOS and TTL-compatible inputs and outputs. Its VIH threshold is 2.0 V minimum and VOH is 2.4 V at –400 µA, meeting standard TTL logic high requirements. Input leakage is ≤10 µA and output drive strength supports direct connection to 74LS and 74HC families without buffering - confirmed in the "DC Characteristics" table.
What methods are available to detect program completion on the AT29C010A-70PI?
The AT29C010A-70PI provides two hardware-verified program completion detection methods: (1) DATA polling - reading the last loaded byte returns its complement on I/O7 until programming completes, then true data appears; (2) Toggle Bit - I/O6 toggles between 0 and 1 during programming and stabilizes upon completion. Both are documented in the "DATA POLLING" and "TOGGLE BIT" sections with corresponding waveforms and timing specs.
AT29C010A-70PI 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:
- 70 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 32-PDIP
AT29C010A-70PI FAQ
1.How can I place an order for AT29C010A-70PI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT29C010A-70PI 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-70PI reliable?
The price and inventory of AT29C010A-70PI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT29C010A-70PI is usually 5 days.
3.What payment methods are accepted for AT29C010A-70PI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT29C010A-70PI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT29C010A-70PI?
AT29C010A-70PI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT29C010A-70PI 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-70PI?
For technical support, including AT29C010A-70PI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT29C010A-70PI requirements.
6.How does Aetrix verify that AT29C010A-70PI is sourced from the original manufacturer or authorized distributors?
All AT29C010A-70PI 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-70PI meets industry standards.
7.What is the process for return or replacement of AT29C010A-70PI?
All AT29C010A-70PI units undergo pre-shipment inspection (PSI). If there is an issue with AT29C010A-70PI, 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-70PI part is unused and in its original packaging.
Return procedure for AT29C010A-70PI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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