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Microchip Technology AT29C010A-70TU
- Part No.:
- AT29C010A-70TU
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT29C010A-70TU.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,031
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Product details
Overview
AT29C010A-70TU from Atmel is a 1 Mbit (128K × 8) 5V-only Flash memory IC designed for in-system reprogrammability in embedded firmware storage applications. It delivers 70 ns read access time, supports sector-based programming of 128-byte blocks, includes two 8K-byte boot blocks with independent lockout, and operates across industrial temperature range (–40°C to +85°C).
For engineers reviewing the AT29C010A-70TU datasheet, AT29C010A-70TU pinout, AT29C010A-70TU application, or AT29C010A-70TU equivalent, key selection criteria include its 5V-only reprogramming architecture, DATA polling/toggle bit program status detection, hardware/software data protection, and PLCC/TSOP package compatibility with legacy 32-pin Flash sockets.
Technical Context
The AT29C010A-70TU implements a sector-erase-and-program architecture where each 128-byte sector is internally latched before simultaneous programming; address lines A7–A16 define the sector, while A0–A6 select the byte within it. Programming requires no external high-voltage supply - only standard 5V ±10% VCC and valid WE/CE/OE timing sequences.
It features dual data protection: hardware-level VCC sensing (<3.8V inhibit), 5 ms power-on delay, and noise filtering on WE/CE; plus software-level protection via three-byte command sequences (AAh/55h/A0h) to enable/disable write locks. Boot block lockout is independently configurable for lower (0x0000–0x1FFF) and upper (0x1F800–0x1FFFF) 8K segments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (131,072 × 8), organized as 1024 sectors × 128 bytes |
| Read Access Time | 70 ns - enables direct replacement for EPROMs in 5V microcontroller boot systems |
| Program Cycle Time | 10 ms per sector - deterministic erase+program latency critical for field firmware updates |
| VCC Supply | 5V ±10% - eliminates need for charge pumps or voltage translators in 5V designs |
| Endurance | >10,000 program/erase cycles per sector - supports long-life industrial firmware revision cycles |
| Standby Current | 300 µA (industrial temp) - reduces system power budget during idle states |
| Operating Temp | –40°C to +85°C - qualified for industrial control, networking, and automotive body electronics |
Pinout & Package
AT29C010A-70TU is available in 32-lead TSOP (Type 1, 8 × 20 mm) package, pin-compatible with industry-standard 32-pin Flash sockets. Pin functions are electrically identical to the PLCC variant but adapted for surface-mount layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus supporting full 128K-word addressing; A7–A16 select sector, A0–A6 select byte within sector |
| I/O0–I/O7 | Bidirectional Data Bus | CMOS/TTL-compatible 8-bit data path; carries loaded sector data during programming and read data during access |
| CE | Chip Enable | Active-low chip select; must be low with OE low and WE high for read; used with WE for byte load initiation |
| OE | Output Enable | Active-low output control; high during programming to place outputs in high-Z state and prevent bus contention |
| WE | Write Enable | Active-low write control; initiates byte load when CE is low and OE is high; timing-critical for 150 µs inter-byte loading window |
| VCC | Power Supply | +5V ±10% main supply; powers internal latches, timers, and programming circuitry |
| GND | Ground | Reference for all I/O and internal logic; decoupling required near VCC pin due to 50 mA active current |
| NC | No Connect | Unbonded pins (positions 15, 16, 31 in TSOP); must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Single 5V Reprogramming | Eliminates need for 12V programming supplies or external voltage translators in system design |
| DATA Polling & Toggle Bit | Enables real-time program completion detection on I/O7 (complement-to-data) or I/O6 (toggle), avoiding fixed delays |
| Dual Boot Block Lockout | Independent 8K-byte lockout for lower (0x0000–0x1FFF) and upper (0x1F800–0x1FFFF) regions prevents accidental overwrite of bootloader code |
| Hardware + Software Protection | VCC sense, 5 ms power-on delay, and 3-byte command sequence jointly prevent inadvertent writes during brown-out or noise events |
| Internal Address/Data Latches | Latches entire 128-byte sector internally, freeing address/data bus for concurrent operations during programming |
Applications
| Industrial PLC Firmware Storage | Legacy PC BIOS Replacement |
|---|---|
Use Scenario: Storing configuration logic and motion control algorithms in programmable logic controllers requiring field-upgradable firmware without hardware redesign. IC Role / Device Role / Timing Role: Nonvolatile firmware storage with sector-level reprogrammability; 70 ns read access ensures deterministic boot timing in real-time control loops. Use Value: Boot block lockout protects startup routines from corruption during partial firmware updates, extending device service life beyond 10,000 cycles. | Use Scenario: Replacing obsolete 27C010 EPROMs in legacy desktop/server motherboards where socket compatibility and 5V operation are mandatory. IC Role / Device Role / Timing Role: Drop-in Flash memory with EPROM-equivalent read interface and 5V-only programming; matches 27C010 pinout and timing envelopes. Use Value: Eliminates UV-erasure requirement and enables in-circuit firmware patching without removing the chip from the board. |
| Network Router Boot Image | Automotive Body Control Module |
Use Scenario: Holding boot loader and kernel images in enterprise-grade routers needing secure, field-upgradable firmware with tamper resistance. IC Role / Device Role / Timing Role: Secure boot storage with software data protection enabled via AAh/55h/A0h command sequence; DATA polling confirms update integrity. Use Value: Hardware VCC-sense and noise filtering prevent corruption during power transients common in PoE-powered network infrastructure. | Use Scenario: Storing calibration tables and diagnostic firmware in vehicle body control units operating in under-hood environments. IC Role / Device Role / Timing Role: Industrial-temperature-rated Flash memory interfacing directly with 8051 or ARM7 microcontrollers via standard parallel bus. Use Value: 300 µA standby current minimizes battery drain during vehicle sleep mode; –40°C to +85°C rating ensures reliability in thermal cycling conditions. |
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 | 3.3V core with 5V I/O tolerance; 70 ns access; 1 Mbit; requires VPP = 12V for sector erase | Requires level-shifting or mixed-voltage design; not 5V-only; higher programming complexity | Select only if migrating to 3.3V systems with backward 5V I/O support |
| SST39VF010-70-4C-NHE | 3.3V supply; 70 ns access; 1 Mbit; single-power 3.3V programming; no VPP needed | Not pin-compatible; different pinout and command set; requires PCB redesign | Choose for new 3.3V designs prioritizing lower power and simplified supply architecture |
Compared with AM29LV010B-70JC and SST39VF010-70-4C-NHE, the AT29C010A-70TU uniquely supports true 5V-only operation without VPP, maintains legacy 32-pin TSOP/PLCC footprint, and delivers deterministic 10 ms sector programming - making it optimal for cost-sensitive industrial upgrades where voltage simplification and socket compatibility are critical.
Availability
AT29C010A-70TU is available at Aetrix Electronics and suitable for industrial PLC firmware storage, legacy PC BIOS replacement, and network router boot image applications requiring stable component supply and long-term obsolescence management.
Supply support for AT29C010A-70TU 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, Flash memory, and secure authentication devices.
The AT29C010A belongs to Atmel's legacy parallel-interface Flash memory product line, engineered for drop-in EPROM replacement in 5V embedded systems requiring in-system reprogrammability and industrial temperature resilience.
FAQ
What is the maximum operating temperature range for the AT29C010A-70TU?
The AT29C010A-70TU is rated for industrial temperature operation from –40°C to +85°C. This specification is confirmed in the "DC and AC Operating Range" section of the official datasheet (0394i–FLASH–9/08), where the -70TU suffix explicitly denotes the industrial grade. The device maintains 70 ns read access and 10 ms sector programming performance across this full range.
Does the AT29C010A-70TU require a high-voltage programming supply like older EPROMs?
No, the AT29C010A-70TU does not require a high-voltage programming supply. It is a 5-volt-only Flash memory: all programming, erasing, and reading operations use only a single 5V ±10% VCC supply. This eliminates the need for 12V VPP generators or external voltage translators, simplifying system power design compared to EPROMs or earlier Flash devices.
How many program/erase cycles is the AT29C010A-70TU rated for?
The AT29C010A-70TU is rated for typical endurance of >10,000 program/erase cycles per sector. This value is specified in the "Features" section and confirmed in the "Description" of the datasheet. Endurance applies independently to each of the 1024 sectors, enabling long-term field firmware updates without wear leveling.
Can the AT29C010A-70TU be used as a direct replacement for the 27C010 EPROM?
Yes, the AT29C010A-70TU is designed as a functional and pin-compatible replacement for the 27C010 EPROM in 5V systems. Its read interface mirrors EPROM behavior (CE/OE/WE control), it uses the same 32-pin TSOP/PLCC packages, and supports identical address/data bus timing. However, programming requires issuing sector-based commands instead of UV erasure - no hardware change is needed, but firmware must implement the load-and-program sequence.
What methods does the AT29C010A-70TU provide to detect the end of a programming cycle?
The AT29C010A-70TU provides two hardware-supported methods: DATA polling on I/O7 (where the bit toggles to complement-of-loaded-data until completion) and Toggle Bit detection on I/O6 (which alternates between 0 and 1 during programming and stabilizes upon completion). Both methods allow real-time status monitoring without fixed timeout delays, as detailed in Sections 4.7 and 4.8 of the datasheet.
AT29C010A-70TU 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-70TU FAQ
1.How can I place an order for AT29C010A-70TU through Aetrix?
Please submit a Request for Quotation (RFQ) for AT29C010A-70TU 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-70TU reliable?
The price and inventory of AT29C010A-70TU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT29C010A-70TU is usually 5 days.
3.What payment methods are accepted for AT29C010A-70TU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT29C010A-70TU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT29C010A-70TU?
AT29C010A-70TU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT29C010A-70TU 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-70TU?
For technical support, including AT29C010A-70TU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT29C010A-70TU requirements.
6.How does Aetrix verify that AT29C010A-70TU is sourced from the original manufacturer or authorized distributors?
All AT29C010A-70TU 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-70TU meets industry standards.
7.What is the process for return or replacement of AT29C010A-70TU?
All AT29C010A-70TU units undergo pre-shipment inspection (PSI). If there is an issue with AT29C010A-70TU, 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-70TU part is unused and in its original packaging.
Return procedure for AT29C010A-70TU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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