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Microchip Technology AT28C010-15JU-T
- Part No.:
- AT28C010-15JU-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-LCC (J-Lead)
- Datasheet:
-
AT28C010-15JU-T.pdf
- Description:
- IC EEPROM 1MBIT PARALLEL 32PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,005
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Product details
Overview
AT28C010-15JU-T from Microchip Technology is a 1-Mbit (128K × 8) paged parallel EEPROM with JEDEC-standard byte-wide pinout, 150 ns read access time, 10 ms maximum page write cycle, and industrial temperature range (–40°C to +85°C). It operates from a single 5V ±10% supply, supports hardware/software data protection, and is used in firmware storage, configuration memory, and boot code retention for embedded controllers.
For engineers reviewing the AT28C010-15JU-T datasheet, AT28C010-15JU-T pinout, AT28C010-15JU-T application, or AT28C010-15JU-T equivalent, key selection criteria include page-write timing (≤10 ms), DATA polling/Toggle Bit end-of-write detection, CMOS/TTL compatibility, 10,000/100,000-cycle endurance, and PLCC-32 packaging with green (Pb/halide-free) compliance.
Technical Context
The AT28C010-15JU-T implements a paged architecture with a 128-byte internal latch, enabling simultaneous write of 1–128 bytes per internal programming cycle. Its dual-line control (CE/OE) allows bus contention avoidance during read operations, while WE-controlled or CE-controlled write initiation supports flexible system timing integration.
It features VCC sense (write inhibit below 3.8 V), 5 ms power-on delay, noise filtering on WE/CE (<15 ns pulses rejected), and optional software data protection (SDP) enabled via three-byte command sequence at addresses 5555H/2AAAH/5555H. Device identification space (128 bytes at 1FF80H–1FFFFH) is accessible with A9 = 12 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size & Organization | 1 Mbit (131,072 × 8), organized as 128K words × 8 bits - supports byte- and page-level access without external address latches |
| Read Access Time | 150 ns max - enables direct replacement of SRAM in legacy 5 MHz bus systems with no wait-state insertion |
| Page Write Cycle Time | 10 ms max - reduces firmware update latency vs. byte-write-only EEPROMs; supports burst loading of configuration blocks |
| Endurance | 10,000 or 100,000 write/erase cycles - selectable via part marking; ensures long-term reliability in field-upgradable systems |
| Data Retention | 10 years minimum - validated under industrial temperature stress; suitable for unattended equipment with infrequent reprogramming |
| Supply Voltage | 5 V ±10% - eliminates need for dedicated voltage regulators; compatible with legacy 5 V logic rails |
| Standby Current | 200 µA (CMOS), 3 mA (TTL) - enables low-power hold mode in battery-backed applications |
Pinout & Package
AT28C010-15JU-T is packaged in a 32-lead Plastic Leaded Chip Carrier (PLCC) with matte tin (Sn) terminal finish, compliant with JEDEC MO-047AB and RoHS/REACH green packaging requirements. Pin 1 is marked by a corner chamfer and is a No Connect (NC).
| 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 provides DATA Polling feedback; I/O6 provides Toggle Bit status |
| CE | Chip Enable | Active-low chip select; must be stable ≥50 ns before read access; inhibits writes when high |
| OE | Output Enable | Active-low output gate; controls data bus tristate; required high during write cycles |
| WE | Write Enable | Active-low write strobe; initiates byte or page write on falling edge; noise-filtered against <15 ns glitches |
| VCC | Power Supply | +5 V ±10% main supply; includes internal VCC sense circuitry that disables writes if voltage drops below 3.8 V |
| GND | Ground Reference | Signal and power ground return; decoupling capacitor placement critical for AC read/write timing stability |
| NC (Pin 1) | No Connect | Unused terminal; must remain unconnected per Microchip specification to avoid functional interference |
Key Features
| Feature | Design Value |
|---|---|
| Page Write Architecture | 128-byte internal latch enables burst programming without CPU address/data bus hold - reduces host processor overhead by >90% vs. byte-by-byte writes |
| DATA Polling & Toggle Bit | Dual asynchronous write-completion detection (I/O7 complement / I/O6 toggle) eliminates need for fixed-delay polling loops - improves system responsiveness and determinism |
| Hardware Write Protection | VCC sense, 5 ms power-on delay, and noise filtering prevent spurious writes during brown-out or EMI events - enhances field reliability without software intervention |
| Software Data Protection (SDP) | User-configurable 3-byte command lock (AAH/55H/A0H) prevents accidental writes; remains active across power cycles - ideal for production firmware lockdown |
| Device Identification Area | 128-byte reserved EEPROM block (1FF80H–1FFFFH) accessible at 12 V on A9 - supports unique unit serialization and calibration data storage |
Applications
| Industrial PLC Firmware Storage | Medical Device Configuration Memory |
|---|---|
Use Scenario: Storing ladder logic programs and I/O mapping tables in programmable logic controllers requiring field updates without hardware replacement. IC Role / Device Role / Timing Role: Nonvolatile program memory with byte-addressable random access and page-write efficiency for incremental firmware patches. Use Value: 10,000+ endurance cycles and 10-year data retention ensure multi-year operation in unattended factory environments. | Use Scenario: Holding device-specific calibration coefficients, user preferences, and regulatory audit logs in Class II medical instruments. IC Role / Device Role / Timing Role: Secure configuration register with hardware/software write protection to prevent unauthorized parameter changes. Use Value: SDP lock and VCC-sense protection meet IEC 62304 software safety requirements for critical data integrity. |
| Automotive Body Control Module (BCM) | Legacy Industrial HMI Boot Memory |
Use Scenario: Storing lighting profiles, window position maps, and diagnostic fault codes in automotive BCMs operating across –40°C to +85°C. IC Role / Device Role / Timing Role: Industrial-grade EEPROM interfaced directly to 8-bit microcontroller buses with no level-shifting. Use Value: 5 V ±10% supply tolerance and JEDEC-standard pinout simplify integration into existing 5 V automotive subsystems. | Use Scenario: Hosting boot loader code and hardware initialization routines in panel-mounted HMIs using aging 8051 or Z80-based designs. IC Role / Device Role / Timing Role: Drop-in SRAM replacement for read operations; supports legacy bus timing with 150 ns tACC and TTL/CMOS compatibility. Use Value: 128K × 8 organization and parallel interface eliminate need for external address latches or glue logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT28C010-12JU-T | 120 ns read access time; otherwise identical architecture, pinout, and feature set | Suitable where tighter read timing is required in high-speed 5 MHz+ bus systems | Select when system timing budget demands sub-150 ns access; same PCB layout and firmware support |
| MX28LV160CTPC-90G | 16 Mbit capacity, 90 ns access, 3.3 V supply only, different pinout (48-pin TSOP), no SDP or VCC sense | Requires voltage translation and board redesign; lacks hardware write protection | Consider only for capacity upgrades with full redesign; not a drop-in alternative |
Compared with AT28C010-15JU-T, the -12JU-T offers faster read performance with zero layout impact, while MX28LV160CTPC-90G trades robustness and compatibility for higher density and lower voltage - making it unsuitable for direct replacement in legacy 5 V systems.
Availability
AT28C010-15JU-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device configuration memory, and automotive body control module applications requiring stable component supply, long-lifecycle support, and green packaging compliance.
Supply support for AT28C010-15JU-T 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 provider of microcontrollers, analog, FPGA, and memory solutions, with leadership in embedded control and nonvolatile memory technologies.
The AT28C010 product line delivers high-reliability parallel EEPROMs optimized for legacy 5 V system upgrades, firmware storage, and configuration retention in industrial, medical, and automotive applications.
FAQ
What is the maximum page write size supported by the AT28C010-15JU-T?
The AT28C010-15JU-T supports a maximum page write size of 128 bytes. This is enabled by its internal 128-byte data latch, which allows up to 128 consecutive bytes to be loaded within a 150 µs window (tBLC) before initiating the internal 10 ms programming cycle. Each byte must reside on the same page, defined by address bits A7–A16.
Does the AT28C010-15JU-T require external high-voltage circuitry for programming?
No, the AT28C010-15JU-T performs all programming and erase operations using only its standard 5 V ±10% supply. High-voltage (12 V) is required only for accessing the 128-byte device identification area (1FF80H–1FFFFH) via A9, not for normal read/write/erase functions. Standard byte and page writes use VCC alone.
How does the AT28C010-15JU-T indicate completion of a write operation?
The AT28C010-15JU-T provides two hardware methods: DATA Polling (complement of last written data appears on I/O7 until write completes) and Toggle Bit (I/O6 toggles between 0 and 1 during write, then stabilizes). Both can be monitored asynchronously without fixed delays, enabling deterministic firmware control flow.
Is the AT28C010-15JU-T pin-compatible with other AT28C010 speed grades?
Yes, the AT28C010-15JU-T is fully pin-compatible with all AT28C010 variants including -12JU-T and -15JU versions in PLCC-32 packaging. Differences are limited to read access time (120 ns vs. 150 ns) and endurance rating (10K vs. 100K cycles), with identical pin functions, DC/AC characteristics, and software interfaces.
What package type does the "JU" suffix denote in AT28C010-15JU-T?
The "JU" suffix in AT28C010-15JU-T specifies a 32-lead Plastic Leaded Chip Carrier (PLCC) package with industrial temperature grade (–40°C to +85°C) and matte tin (Sn) terminal finish. The "J" denotes PLCC, "U" indicates industrial temp and green (Pb/halide-free) compliance per Microchip's product identification system.
AT28C010-15JU-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 32-LCC (J-Lead)
- Packaging:
- Tape & Reel (TR)
- 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:
- 150 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)
AT28C010-15JU-T FAQ
1.How can I place an order for AT28C010-15JU-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT28C010-15JU-T 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 AT28C010-15JU-T reliable?
The price and inventory of AT28C010-15JU-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT28C010-15JU-T is usually 5 days.
3.What payment methods are accepted for AT28C010-15JU-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT28C010-15JU-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT28C010-15JU-T?
AT28C010-15JU-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT28C010-15JU-T 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 AT28C010-15JU-T?
For technical support, including AT28C010-15JU-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT28C010-15JU-T requirements.
6.How does Aetrix verify that AT28C010-15JU-T is sourced from the original manufacturer or authorized distributors?
All AT28C010-15JU-T 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 AT28C010-15JU-T meets industry standards.
7.What is the process for return or replacement of AT28C010-15JU-T?
All AT28C010-15JU-T units undergo pre-shipment inspection (PSI). If there is an issue with AT28C010-15JU-T, 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 AT28C010-15JU-T part is unused and in its original packaging.
Return procedure for AT28C010-15JU-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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