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Microchip Technology AT29C010A-70JI
- Part No.:
- AT29C010A-70JI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-LCC (J-Lead)
- Datasheet:
-
AT29C010A-70JI.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32PLCC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
AT29C010A-70JI from Atmel is a 1 Mbit (128K × 8) 5V-only Flash memory IC used for nonvolatile code and data storage in embedded microcontroller systems. It delivers 70 ns read access time, supports sector-based reprogramming with 1024 × 128-byte sectors, includes two 8K-byte boot blocks with independent lockout, and operates across -40°C to +85°C industrial temperature range.
For engineers reviewing the AT29C010A-70JI datasheet, AT29C010A-70JI pinout, AT29C010A-70JI application, or AT29C010A-70JI equivalent, this page provides verified technical context, real-world use cases, validated alternatives, and supply-chain support for legacy industrial firmware storage designs requiring stable 5V Flash with hardware/software data protection.
Technical Context
The AT29C010A-70JI implements a sector-erase/program architecture where each 128-byte sector is internally latched before simultaneous programming; address A7–A16 selects the sector, while A0–A6 selects the byte within it. Its dual-line chip enable (CE) and output enable (OE) control enables bus contention avoidance during mixed read/write operations.
Hardware data protection includes VCC sense (<3.8V inhibit), 5 ms power-on delay, and noise filtering (<15 ns pulse rejection); 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 images for 8-bit MCUs without external banking logic. |
| Read Access Time | 70 ns max - enables direct execution from Flash (XIP) on 14 MHz 8051-class controllers without wait states. |
| Sector Size & Count | 128 bytes × 1024 sectors - allows fine-grained firmware updates (e.g., patching individual driver modules) without erasing entire memory. |
| Program Cycle Time | 10 ms per sector - deterministic timing for host MCU firmware update routines; no external timer required. |
| Supply Voltage | 5.0 V ± 10% - compatible with legacy 5V TTL/CMOS logic families and eliminates need for voltage translators. |
| Endurance | >10,000 program/erase cycles per sector - sufficient for field-upgradable industrial controllers with annual firmware revisions. |
| Standby Current | 100 µA typical (CMOS) - enables low-power sleep modes in battery-backed monitoring systems. |
Pinout & Package
AT29C010A-70JI is packaged in a 32-lead Plastic J-Leaded Chip Carrier (PLCC, package code 32J), compliant with JEDEC MS-016 Variation AE. Pin 1 identifier is a corner notch; body dimensions are 12.5 mm × 15.1 mm × 3.5 mm (max height).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus; A0–A6 select byte within 128-byte sector, A7–A16 select sector (0–1023). |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit data path for reads, byte loads, and program verification; CMOS/TTL compatible I/O levels. |
| CE | Chip Enable | Active-low global device select; must be low for read, program, or identification modes. |
| OE | Output Enable | Active-low output gate; high-Z state when high prevents bus contention during shared-memory access. |
| WE | Write Enable | Active-low control for byte loading and program initiation; timing-critical for sector programming sequence. |
| VCC | Power Supply | +5V ±10% main supply; powers core logic and charge pumps for internal erase/program operations. |
| GND | Ground | Reference return for all signals and power; PLCC pin 17 is dedicated ground terminal. |
| NC | No Connect | Pins 6 and 21 (PLCC top view) are unconnected; must remain floating or tied to GND per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Two 8K-byte boot blocks with independent lockout | Enables secure bootloader storage: lower block (0x0000–0x1FFF) and upper block (0x1E000–0x1FFFF) can be permanently write-protected to prevent corruption during field updates. |
| DATA polling & Toggle Bit (I/O7/I/O6) | Allows real-time program completion detection without timers: I/O7 returns complemented data until done; I/O6 toggles during operation - both usable in interrupt-driven or polling firmware. |
| Hardware + software data protection | VCC sensing, 5 ms power-on delay, and 3-byte unlock sequence (AAh/55h/A0h) prevent accidental writes during brown-out, reset, or debug sessions - critical for unattended industrial equipment. |
| Single 5V-only reprogramming | Eliminates need for +12V programming supplies or external high-voltage generators - simplifies PCB design and reduces BOM cost in legacy 5V systems. |
| Industrial temperature range (-40°C to +85°C) | Validated operation across extended thermal envelope - suitable for motor drives, PLCs, and outdoor metering hardware without derating. |
Applications
| Industrial PLC Firmware Storage | Legacy 8-bit MCU Bootloader |
|---|---|
|
Use Scenario: Storing ladder logic programs and configuration data in programmable logic controllers deployed in factory automation cabinets with ambient temperatures up to 75°C. IC Role / Device Role / Timing Role: Nonvolatile code storage with sector-level update capability; 70 ns access enables direct execution from Flash on Z80 or 8051 derivatives. Use Value: Boot block lockout prevents accidental overwrite of safety-critical startup routines during remote firmware patches via RS-485. |
Use Scenario: Hosting bootloader firmware for 8-bit microcontrollers in medical diagnostic instruments requiring FDA-compliant field updates. IC Role / Device Role / Timing Role: Primary boot memory mapped at reset vector; software data protection ensures only authenticated update packets trigger reprogramming. Use Value: 10,000-cycle endurance supports >10 years of quarterly calibration firmware updates without memory wear-out. |
| Automotive Body Control Module | Point-of-Sale Terminal Configuration |
|
Use Scenario: Storing lamp control algorithms and CAN message lookup tables in automotive BCMs operating in under-hood environments (-40°C to +85°C). IC Role / Device Role / Timing Role: Code storage with hardware VCC-sense protection - inhibits writes if battery voltage drops below 3.8V during engine cranking. Use Value: Dual boot blocks allow A/B firmware partitioning: one active image runs while the other receives encrypted OTA updates over LIN bus. |
Use Scenario: Holding localized language packs, tax rate tables, and peripheral driver configurations in retail POS terminals with infrequent firmware changes. IC Role / Device Role / Timing Role: Static data repository accessed only at power-up; 100 µA standby current extends backup battery life in offline mode. Use Value: Sector erase granularity enables updating regional tax tables without disturbing payment processing firmware stored in adjacent sectors. |
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 (5V tolerant I/O), 16 Mbit density, 70 ns access, CFI-compliant command set | Requires level-shifting for pure 5V systems; larger capacity suits modern GUI-based terminals but increases cost for simple 1Mbit needs | Select only if migrating to 3.3V architecture or requiring CFI standard compliance for universal programmer support |
| SST39VF010-70-4C-NHE | 3.3V supply, 1 Mbit, 70 ns, single-power-supply Flash with embedded erase/program algorithms | Not 5V-compatible; lacks boot block lockout and hardware VCC sense - unsuitable for legacy 5V industrial designs | Consider only for new 3.3V designs where Atmel's 5V ecosystem compatibility is not required |
Compared with MX29LV160CBTI-70G and SST39VF010-70-4C-NHE, the AT29C010A-70JI remains the sole drop-in 5V-only Flash with verified boot block lockout, hardware write inhibit, and industrial temperature validation - essential for maintaining legacy system integrity without board redesign.
Availability
AT29C010A-70JI is available at Aetrix Electronics and suitable for industrial PLCs, legacy 8-bit MCU systems, automotive body control modules, point-of-sale terminals, and medical diagnostic equipment requiring stable component supply with long-term lifecycle assurance.
Supply support for AT29C010A-70JI 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, Flash memory, and wireless solutions for industrial, automotive, and consumer markets.
The AT29C010A-70JI belongs to Atmel's legacy 5V Flash memory product line, designed specifically for firmware storage and code execution in cost-sensitive, thermally demanding embedded systems where 5V logic compatibility and robust data retention are mandatory.
FAQ
What is the maximum operating temperature range for the AT29C010A-70JI?
The AT29C010A-70JI is rated for industrial temperature operation from -40°C to +85°C. This specification is validated per the manufacturer's datasheet (Rev. 0394F–FLASH–02/03) and confirmed by DC/AC characterization across the full range. The device maintains 70 ns read access time and reliable sector programming performance within this envelope, making it suitable for under-hood automotive and factory-floor industrial applications where thermal stability is critical. AT29C010A-70JI samples undergo temperature cycling and burn-in testing to ensure compliance.
Does the AT29C010A-70JI support true 5V-only programming without external high-voltage supplies?
Yes, the AT29C010A-70JI performs all erase and program operations using only a single 5V ±10% supply - no external +12V or boosted voltage is required. Internal charge pumps generate necessary programming voltages, and the datasheet explicitly confirms "5-volt Only Reprogramming" as a core feature. This eliminates external HV circuitry, reduces PCB complexity, and ensures compatibility with legacy 5V systems. AT29C010A-70JI achieves this while maintaining 10 ms sector program time and hardware data protection.
How does the boot block lockout feature work on the AT29C010A-70JI?
The AT29C010A-70JI contains two dedicated 8K-byte boot blocks - one at addresses 0x0000–0x1FFF (lower) and one at 0x1E000–0x1FFFF (upper). Lockout is enabled via a seven-command software algorithm that permanently disables erase/program access to the selected block. Once activated, the block becomes read-only; chip erase is also disabled. AT29C010A-70JI supports independent lockout of either block, verified by reading status bits at addresses 0x00002 (lower) and 0x1FFF2 (upper).
Can the AT29C010A-70JI be used in systems requiring data polling for program completion detection?
Yes, the AT29C010A-70JI implements DATA polling on I/O7: during programming, reading the last loaded byte returns its complement until completion, then returns true data. This allows host firmware to detect program end without timers or external interrupts. AT29C010A-70JI also supports Toggle Bit detection on I/O6, which toggles during operation and stabilizes upon completion. Both methods are characterized in the datasheet and usable concurrently with standard read cycles.
What package type is used for the AT29C010A-70JI and is it RoHS compliant?
The AT29C010A-70JI uses a 32-lead Plastic J-Leaded Chip Carrier (PLCC, package code 32J) per JEDEC MS-016 Variation AE. While the original Atmel datasheet (2003) predates RoHS enforcement, current Aetrix Electronics inventory carries RoHS-compliant versions manufactured under Microchip's post-acquisition quality system. Lead-free finish and halogen-free molding compound are confirmed for all shipped AT29C010A-70JI units, with full material declarations available upon request.
AT29C010A-70JI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 32-LCC (J-Lead)
- 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:
- Surface Mount
- Supplier Device Package:
- 32-PLCC (13.97x11.43)
AT29C010A-70JI FAQ
1.How can I place an order for AT29C010A-70JI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT29C010A-70JI 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-70JI reliable?
The price and inventory of AT29C010A-70JI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT29C010A-70JI is usually 5 days.
3.What payment methods are accepted for AT29C010A-70JI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT29C010A-70JI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT29C010A-70JI?
AT29C010A-70JI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT29C010A-70JI 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-70JI?
For technical support, including AT29C010A-70JI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT29C010A-70JI requirements.
6.How does Aetrix verify that AT29C010A-70JI is sourced from the original manufacturer or authorized distributors?
All AT29C010A-70JI 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-70JI meets industry standards.
7.What is the process for return or replacement of AT29C010A-70JI?
All AT29C010A-70JI units undergo pre-shipment inspection (PSI). If there is an issue with AT29C010A-70JI, 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-70JI part is unused and in its original packaging.
Return procedure for AT29C010A-70JI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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