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Microchip Technology AT29C010A-70TI
- Part No.:
- AT29C010A-70TI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT29C010A-70TI.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32TSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
AT29C010A-70TI from Atmel is a 1 Mbit (128K × 8) 5V-only Flash memory IC used for nonvolatile code and data storage in embedded 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 programming lockout, and operates across industrial temperature range (–40°C to +85°C) in TSOP-32 package.
For engineers reviewing the AT29C010A-70TI datasheet, AT29C010A-70TI pinout, AT29C010A-70TI application, or AT29C010A-70TI equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, confirmed alternatives, and supply-ready procurement guidance - all grounded in Atmel's official documentation Rev. 0394F–FLASH–02/03.
Technical Context
The AT29C010A-70TI implements in-system reprogrammability without high-voltage programming: all operations use only 5V ± 10% supply, with internal control timers managing erase-and-program sequences per 128-byte sector. Its dual-line chip enable (CE) and output enable (OE) logic enables bus contention avoidance during mixed read/write system operation.
Hardware data protection includes VCC sense (<3.8V inhibits programming), 5 ms power-on delay, and noise filtering (<15 ns pulses ignored); software protection uses three-byte command sequences (e.g., AAh/55h/A0h) to enable/disable write locks. Boot block lockout is set via seven-command algorithm and disables chip erase when active.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (131,072 × 8), enabling firmware storage for mid-complexity microcontrollers without external memory expansion. |
| Read Access Time | 70 ns max - supports direct execution from flash (XIP) in 8-bit bus systems running up to ~10 MHz. |
| Sector Size & Count | 128 bytes × 1024 sectors - allows fine-grained firmware updates without erasing full device; reduces field upgrade risk. |
| Program Cycle Time | 10 ms per sector - deterministic timing simplifies host MCU firmware wait-state handling during writes. |
| Endurance | >10,000 program/erase cycles per sector - suitable for infrequent configuration updates or bootloader patches. |
| Supply Voltage | 5V ± 10% - compatible with legacy 5V logic families and eliminates need for dedicated programming voltage rails. |
| Operating Temperature | –40°C to +85°C - qualified for industrial control, automotive body electronics, and factory automation environments. |
Pinout & Package
AT29C010A-70TI is packaged in 32-lead Thin Small Outline Package (TSOP Type I, JEDEC MO-142 BD), 8 mm × 20 mm footprint, 0.5 mm lead pitch, surface-mount compatible with standard reflow profiles.
| 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 during programming. |
| CE | Chip Enable | Active-low device selection; must be low for read, byte load, or program; high state forces outputs to high-Z and enables CMOS standby mode (≤100 µA). |
| OE | Output Enable | Active-low output gate; used with CE to control data bus drive; high state disables outputs regardless of CE/WE state. |
| WE | Write Enable | Active-low control for byte loading and sector programming; falling edge latches address/data; timing-critical for 150 µs inter-byte load window. |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit multiplexed data path: inputs during byte load/programming, outputs during read; supports DATA polling on I/O7 and toggle bit detection on I/O6. |
| VCC | Power Supply | +5V ± 10% main supply; powers core logic and I/O buffers; internal VCC sense circuitry prevents programming below ~3.8V. |
| GND | Ground Reference | Signal and power return; decoupling capacitor (0.1 µF) required near VCC pin for stable read/write operation. |
| NC | No Connect | Two pins (positions 6 and 9 in TSOP top view) are unconnected; must remain floating - no routing or grounding permitted. |
Key Features
| Feature | Design Value |
|---|---|
| Single 5V Reprogramming | Eliminates need for 12V programming supplies or charge pumps - simplifies PCB layout and reduces BOM count in 5V systems. |
| Boot Block Lockout | Independent 8K-byte lockout for upper/lower memory regions prevents accidental overwrite of bootloader code during field firmware updates. |
| DATA Polling & Toggle Bit | Dual end-of-program detection methods (I/O7 complement, I/O6 toggling) enable robust, timing-agnostic host MCU polling without fixed delays. |
| Hardware + Software Protection | VCC sensing, noise filtering, and 3-byte command lock provide layered defense against spurious writes during power transients or EMI events. |
| CMOS/TTL Compatibility | Input thresholds (VIL ≤ 0.8V, VIH ≥ 2.0V) and output drive (VOH ≥ 2.4V @ –400 µA) ensure interoperability with both legacy TTL and modern CMOS logic. |
Applications
| Industrial PLC Firmware Storage | Legacy Embedded System BIOS |
|---|---|
Use Scenario: Storing ladder logic firmware and I/O configuration tables in programmable logic controllers deployed in factory environments with wide temperature swings and electrical noise. IC Role / Device Role / Timing Role: Nonvolatile code storage with direct bus interface; 70 ns access enables real-time scan cycle execution without external wait states. Use Value: Boot block lockout preserves startup routines during remote firmware updates; industrial temp rating ensures reliability at –40°C cold starts and 85°C cabinet operation. |
Use Scenario: Holding initialization code and hardware abstraction layer for 8051- or Z80-based instrumentation devices requiring field-upgradable calibration data. IC Role / Device Role / Timing Role: Standalone Flash memory mapped into CPU address space; sector erase allows selective update of calibration constants without disturbing boot code. Use Value: 128-byte sector granularity minimizes update window - critical when recalibration must complete within 50 ms safety timeouts. |
| Automotive Body Control Module | Point-of-Sale Terminal Configuration |
Use Scenario: Storing lamp control logic, door lock sequencing, and CAN message lookup tables in automotive BCMs operating under battery voltage fluctuations and thermal stress. IC Role / Device Role / Timing Role: Code/data repository interfaced to 8-bit microcontroller via parallel bus; hardware data protection prevents corruption during ignition cycling. Use Value: VCC sense and 5 ms power-on delay prevent partial writes during cranking; >10,000 endurance supports lifetime recalibration over 15-year vehicle service life. |
Use Scenario: Maintaining localized language packs, tax rate tables, and peripheral driver settings in retail terminals subject to frequent power cycling and regional deployment changes. IC Role / Device Role / Timing Role: Field-updatable configuration store accessed during boot; software data protection prevents accidental overwrite by untrusted applications. Use Value: Two independent boot blocks allow safe fallback to known-good firmware if new language pack fails verification during load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AM29LV010B-70EC | 3.3V core with 5V I/O tolerance; 70 ns access; 1 Mbit density; requires VPP = 12V for sector erase in some modes. | Designed for mixed-voltage systems; not drop-in compatible due to different VCC requirements and higher programming voltage dependency. | Select when migrating to lower-power 3.3V domains; verify host system can supply VPP or support 3.3V-only operation. |
| SST39VF010-70-4C-NHE | 3.3V supply only; 70 ns access; 1 Mbit; single-power 3.3V programming; no VPP required; supports CFI query. | Requires full 3.3V system redesign; lacks boot block lockout but offers JEDEC-standard CFI interface for auto-detection. | Prefer for new 3.3V designs needing standardized flash interface; avoid if 5V compatibility or boot block security is mandatory. |
Compared with AM29LV010B-70EC and SST39VF010-70-4C-NHE, the AT29C010A-70TI uniquely supports true 5V-only operation with integrated boot block lockout and hardware VCC-sense protection - making it the only option among the three qualified for legacy 5V industrial controllers requiring zero-voltage-risk field updates.
Availability
AT29C010A-70TI is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive body control modules, and legacy embedded system BIOS requiring stable component supply, long-lifecycle availability, and guaranteed TSOP-32 packaging consistency.
Supply support for AT29C010A-70TI 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, with design centers across the US, Europe, and Asia.
The AT29C010A-70TI belongs to Atmel's legacy 5V Flash memory product line, engineered specifically for cost-sensitive, reliability-critical industrial and automotive applications where 5V system compatibility and in-system reprogrammability were essential design requirements.
FAQ
What is the maximum operating temperature range for the AT29C010A-70TI?
The AT29C010A-70TI 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 Atmel's official datasheet Rev. 0394F–FLASH–02/03. The device maintains full 70 ns read access time and reliable sector programming performance across this full range, making it suitable for deployment in harsh environments such as factory floors and vehicle engine compartments. Thermal derating is not required within these limits.
Does the AT29C010A-70TI require a high-voltage programming supply?
No, the AT29C010A-70TI does not require a high-voltage programming supply. As stated in the "Features" section and "Device Operation" chapter of its datasheet, it supports 5-volt-only reprogramming using standard logic-level signals. All programming commands - including sector erase, byte load, and software data protection - execute with VCC = 5V ± 10%. Internal circuitry handles voltage boosting, eliminating the need for external VPP generators or charge pumps in the host system.
How many sectors does the AT29C010A-70TI have, and what is the size of each sector?
The AT29C010A-70TI contains 1024 sectors, each 128 bytes in size. This is explicitly documented in the "Features" list and "Device Operation" section of the datasheet. Sector addressing uses A7–A16, while A0–A6 select the byte within the sector. This 128-byte granularity enables precise firmware patching - for example, updating only a specific interrupt vector table or calibration constant block without erasing unrelated application code.
What package type is used for the AT29C010A-70TI?
The AT29C010A-70TI uses the 32-lead Thin Small Outline Package (TSOP), designated as package code "32T" in Atmel's ordering information. Per the "Packaging Information" section and mechanical drawing 32T, it measures 8 mm × 20 mm, has a 0.5 mm lead pitch, and conforms to JEDEC MO-142 Variation BD. This surface-mount package supports automated assembly and offers better thermal performance than PDIP or PLCC variants for the same device.
Can the AT29C010A-70TI be used in systems with TTL-level logic interfaces?
Yes, the AT29C010A-70TI is fully compatible with TTL-level logic interfaces. Its DC characteristics specify VIH ≥ 2.0 V and VIL ≤ 0.8 V, matching standard TTL input thresholds, and its VOH ≥ 2.4 V (at –400 µA) and VOL ≤ 0.45 V (at 2.1 mA) meet TTL output drive requirements. This dual compatibility is explicitly noted in the "Features" list and confirmed in the "DC Characteristics" table - enabling direct connection to legacy 8051, 68HC11, or Z80-based systems without level-shifting circuitry.
AT29C010A-70TI 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:
- 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-TSOP
AT29C010A-70TI FAQ
1.How can I place an order for AT29C010A-70TI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT29C010A-70TI 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-70TI reliable?
The price and inventory of AT29C010A-70TI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT29C010A-70TI is usually 5 days.
3.What payment methods are accepted for AT29C010A-70TI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT29C010A-70TI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT29C010A-70TI?
AT29C010A-70TI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT29C010A-70TI 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-70TI?
For technical support, including AT29C010A-70TI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT29C010A-70TI requirements.
6.How does Aetrix verify that AT29C010A-70TI is sourced from the original manufacturer or authorized distributors?
All AT29C010A-70TI 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-70TI meets industry standards.
7.What is the process for return or replacement of AT29C010A-70TI?
All AT29C010A-70TI units undergo pre-shipment inspection (PSI). If there is an issue with AT29C010A-70TI, 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-70TI part is unused and in its original packaging.
Return procedure for AT29C010A-70TI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT29C010A-70TI Tags
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