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Microchip Technology AT28C010-12TU
- Part No.:
- AT28C010-12TU
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT28C010-12TU.pdf
- Description:
- IC EEPROM 1MBIT PARALLEL 32TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,360
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Product details
Overview
AT28C010-12TU from Microchip Technology is a 1-Mbit (128K × 8) paged parallel EEPROM with 120 ns read access time, JEDEC-standard byte-wide pinout, and single 5V ±10% supply operation. It supports automatic 1–128-byte page writes with internal latching and timer control, and delivers 40 mA active current and 200 µA CMOS standby current for embedded system firmware storage in industrial controllers.
For engineers reviewing the AT28C010-12TU datasheet, AT28C010-12TU pinout, AT28C010-12TU application, or AT28C010-12TU equivalent, key selection criteria include verified page-write timing (≤10 ms), DATA Polling/Toggle Bit write-completion detection, hardware/software data protection, industrial temperature range (−40°C to +85°C), and green PLCC/TSOP packaging compliance.
Technical Context
The AT28C010-12TU implements a static RAM-compatible interface with dual-line chip enable (CE) and output enable (OE) control, enabling bus contention avoidance in microcontroller-based systems. Its internal 128-byte page register latches address and data during write initiation, freeing the bus for concurrent operations while the internal timer executes programming.
Write completion is confirmed via I/O7 DATA Polling (complement-to-data toggle) or I/O6 Toggle Bit behavior-both observable without external timing components. Hardware protection includes VCC sense (<3.8 V inhibit), 5 ms power-on delay, and noise filtering on CE/WE inputs; software protection uses a three-byte command sequence to enable/disable write lock.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1 Mbit (131,072 × 8 bits); supports full firmware image or configuration storage in resource-constrained systems |
| Read Access Time | 120 ns max; enables direct replacement of SRAM in legacy 8-bit/16-bit microcontroller address/data bus interfaces |
| Page Write Cycle | ≤10 ms; reduces firmware update latency versus byte-by-byte writes, critical for field-programmable devices |
| Endurance | 10,000 write/erase cycles (standard grade); ensures reliable reprogramming over product lifetime in industrial settings |
| Data Retention | 10 years at 85°C; validated for long-term storage in unpowered equipment or infrequently updated configurations |
| Supply Voltage | 5V ±10%; eliminates need for dedicated voltage regulators in 5V logic systems |
| Operating Temp | −40°C to +85°C industrial range; qualified for deployment in PLCs, motor drives, and factory automation hardware |
Pinout & Package
AT28C010-12TU is available in 32-lead PLCC (plastic leaded chip carrier) and 32-lead TSOP (thin small outline package), both with JEDEC-standard byte-wide pinout and matte tin (Sn) terminal finish. The "U" suffix denotes industrial temperature grade and green (Pb/halide-free) packaging.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus supporting full 128K-word addressing; A7–A16 define page boundaries for 128-byte page writes |
| I/O0–I/O7 | Bidirectional Data Bus | CMOS/TTL-compatible 8-bit data path; I/O7 used for DATA Polling, I/O6 for Toggle Bit status indication |
| CE | Chip Enable | Active-low global device select; must be low with OE low and WE high for read access; controls bus arbitration |
| OE | Output Enable | Active-low output gate; high-Z state when deasserted prevents bus contention during shared memory access |
| WE | Write Enable | Active-low write strobe; falling edge latches address/data; initiates byte or page write cycles with internal timing |
| VCC / GND | Power Supply | Single 5V ±10% supply with 200 µA standby current; no separate VPP required for programming |
Key Features
| Feature | Design Value |
|---|---|
| Automatic Page Write | 128-byte internal latch + self-timed programming eliminates host CPU wait states and simplifies firmware update routines |
| DATA Polling & Toggle Bit | Dual asynchronous write-completion detection on I/O7/I/O6 allows real-time status monitoring without fixed delays or timers |
| Hardware Write Protection | VCC sense, 5 ms power-on delay, and 15 ns noise filtering prevent spurious writes during power ramp-up or EMI events |
| Software Data Protection | Three-byte command sequence (AAh/55h/A0h) enables/disables write lock; retains protection across power cycles |
| Device Identification Area | 128 bytes at 1FF80H–1FFFFH accessible via 12V A9 bias; supports unique serialization or calibration data storage |
Applications
| Industrial PLC Firmware Storage | Medical Device Configuration Memory |
|---|---|
|
Use Scenario: Storing boot code, parameter tables, and calibration constants in programmable logic controllers deployed in factory environments with wide temperature swings and electrical noise. IC Role / Device Role / Timing Role: Nonvolatile firmware storage with SRAM-like read interface and deterministic 120 ns access; page write minimizes update downtime during field service. Use Value: Eliminates need for external programming hardware; 10,000-cycle endurance supports decades of scheduled firmware revisions under IEC 61131-3 lifecycle requirements. |
Use Scenario: Holding patient-specific therapy parameters and device serial traceability data in Class II medical infusion pumps requiring regulatory-compliant data integrity. IC Role / Device Role / Timing Role: Secure configuration storage with hardware/software write protection; 10-year data retention meets FDA 21 CFR Part 11 archival mandates. Use Value: Prevents accidental overwrite during power transitions; identification area stores UDI-compliant serial numbers without consuming main array space. |
| Automotive Body Control Module | Test Equipment Calibration Storage |
|
Use Scenario: Saving user preferences, fault logs, and adaptive lighting profiles in automotive BCMs operating across −40°C to +85°C ambient conditions. IC Role / Device Role / Timing Role: Industrial-grade EEPROM interfaced directly to 8051 or ARM7 microcontrollers via parallel bus; 5V supply matches legacy automotive MCU rails. Use Value: Green Pb/halide-free packaging satisfies ELV Directive; page write enables rapid recalibration after battery disconnect events. |
Use Scenario: Archiving calibration coefficients and sensor linearity corrections in benchtop multimeters and oscilloscopes requiring traceable metrology records. IC Role / Device Role / Timing Role: High-reliability nonvolatile memory with 120 ns read speed for fast coefficient lookup during measurement cycles. Use Value: DATA Polling ensures precise synchronization of calibration updates; 200 µA standby current extends battery life in portable test gear. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT28C010-15TU | 150 ns read access time; identical pinout, endurance, and feature set | Suitable where 120 ns timing margin is unnecessary; lower cost in volume production | Select when system timing budget allows relaxed access time without sacrificing reliability or packaging |
| MX28LV160CBTI-12G | 16-Mbit capacity, 3V core with 5V I/O tolerance, 120 ns access, but requires VPP = 12V for programming | Higher density for future-proofing; not drop-in due to different voltage requirements and pinout | Consider only if migrating to larger memory footprint and redesigning power delivery for dual-supply support |
Compared with AT28C010-12TU, the -15TU offers identical functionality at reduced speed grade for cost-sensitive designs, while MX28LV160CBTI-12G provides higher density but demands board-level changes for VPP routing and voltage translation-neither is pin-compatible.
Availability
AT28C010-12TU is available at Aetrix Electronics and suitable for industrial PLCs, medical infusion pumps, automotive body control modules, and test equipment calibration storage requiring stable component supply across extended product lifecycles.
Supply support for AT28C010-12TU 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
Microchip Technology is a global semiconductor company specializing in microcontrollers, analog, FPGA, and memory solutions, with a focus on industrial, automotive, and aerospace reliability standards.
The AT28C010 belongs to Microchip's legacy parallel EEPROM product line, designed specifically for drop-in SRAM replacement in mature 8/16-bit embedded systems requiring robust nonvolatile storage without complex interface logic.
FAQ
What is the maximum page write size supported by the AT28C010-12TU?
The AT28C010-12TU supports up to 128 bytes per page write operation, enabled by its internal 128-byte address and data latch. This capability allows firmware updates to complete in ≤10 ms per page, significantly accelerating field reprogramming compared to byte-wise writes. The AT28C010-12TU requires all bytes in a page write to reside within the same 128-byte boundary defined by address bits A7–A16.
Does the AT28C010-12TU require a high-voltage programming supply (VPP)?
No, the AT28C010-12TU operates from a single 5V ±10% supply and does not require an external VPP voltage for normal read/write operations. Only the optional device identification area (1FF80H–1FFFFH) requires 12V applied to A9 for programming; standard memory array writes use only VCC. This eliminates the need for charge pumps or high-voltage generators in the AT28C010-12TU system design.
How does hardware write protection function on the AT28C010-12TU?
Hardware write protection on the AT28C010-12TU activates automatically when VCC drops below ~3.8 V, blocks writes for 5 ms after power-on, and ignores pulses <15 ns wide on CE/WE pins. These features prevent corruption during brown-out conditions or EMI events. The AT28C010-12TU maintains this protection without software intervention, ensuring data integrity even in unattended industrial deployments.
Can the AT28C010-12TU be used as a direct replacement for SRAM in existing designs?
Yes-the AT28C010-12TU uses a static RAM-compatible interface with identical CE/OE/WE control timing and 120 ns read access, allowing direct substitution in many 8-bit/16-bit microcontroller systems. However, write cycles require explicit polling (via I/O7 or I/O6) or timeout handling, unlike SRAM's instantaneous writes. The AT28C010-12TU retains data without power, eliminating battery backup requirements.
What is the purpose of the 128-byte device identification area in the AT28C010-12TU?
The AT28C010-12TU includes 128 bytes of dedicated EEPROM space at addresses 1FF80H–1FFFFH, accessible only when A9 is biased to 12V ±0.5V. This area is intended for permanent device serialization, calibration data, or manufacturing trace codes-separate from the main memory array. It enables secure, tamper-resistant storage of unique identifiers without consuming application memory space in the AT28C010-12TU.
AT28C010-12TU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 32-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- 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:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TSOP
AT28C010-12TU FAQ
1.How can I place an order for AT28C010-12TU through Aetrix?
Please submit a Request for Quotation (RFQ) for AT28C010-12TU 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 AT28C010-12TU reliable?
The price and inventory of AT28C010-12TU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT28C010-12TU is usually 5 days.
3.What payment methods are accepted for AT28C010-12TU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT28C010-12TU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT28C010-12TU?
AT28C010-12TU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT28C010-12TU 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 AT28C010-12TU?
For technical support, including AT28C010-12TU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT28C010-12TU requirements.
6.How does Aetrix verify that AT28C010-12TU is sourced from the original manufacturer or authorized distributors?
All AT28C010-12TU 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 AT28C010-12TU meets industry standards.
7.What is the process for return or replacement of AT28C010-12TU?
All AT28C010-12TU units undergo pre-shipment inspection (PSI). If there is an issue with AT28C010-12TU, 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 AT28C010-12TU part is unused and in its original packaging.
Return procedure for AT28C010-12TU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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