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Microchip Technology AT28C010E-15JU
- Part No.:
- AT28C010E-15JU
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-LCC (J-Lead)
- Datasheet:
-
AT28C010E-15JU.pdf
- Description:
- IC EEPROM 1MBIT PARALLEL 32PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,416
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Product details
Overview
AT28C010E-15JU 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 AT28C010E-15JU datasheet, AT28C010E-15JU pinout, AT28C010E-15JU application, or AT28C010E-15JU equivalent, key selection criteria include page-write timing (≤10 ms), DATA polling/Toggle Bit end-of-write detection, 100,000-cycle endurance, CMOS/TTL compatibility, and PLCC-32 packaging for legacy board compatibility.
Technical Context
The AT28C010E-15JU implements a paged architecture with a 128-byte internal latch, enabling simultaneous write of 1–128 bytes per cycle without external address/data bus hold. Its dual-line control (CE/OE) enables SRAM-like read access while preventing bus contention during deselect.
Write operation relies on internal timing: after latching address and data, an autonomous control timer executes programming; completion is signaled via I/O7 DATA Polling (complement-to-data) or I/O6 Toggle Bit behavior. Hardware protection includes VCC sense (<3.8 V inhibit), 5 ms power-on delay, and noise filtering on WE/CE inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (131,072 × 8), organized as 128K words × 8 bits - supports full firmware image or multi-parameter configuration storage in space-constrained systems. |
| Read Access Time | 150 ns max (AT28C010E-15 variant) - compatible with 6–7 MHz system buses without wait states in industrial microcontroller interfaces. |
| Page Write Cycle | 10 ms max - enables efficient bulk updates (e.g., calibration tables or field-upgradable parameters) with minimal host CPU overhead. |
| Endurance | 100,000 write/erase cycles (E-grade) - suitable for applications requiring frequent reprogramming, such as programmable logic controllers or test equipment calibration registers. |
| Data Retention | 10 years at +85°C - ensures long-term reliability in unattended industrial deployments without periodic refresh. |
| Supply Voltage | 5V ±10% - eliminates need for dedicated voltage regulators in legacy 5V systems; compatible with TTL/CMOS logic families. |
| Operating Temperature | –40°C to +85°C (industrial grade) - validated for use in factory automation, motor drives, and outdoor instrumentation. |
Pinout & Package
AT28C010E-15JU is packaged in a 32-lead Plastic Leaded Chip Carrier (PLCC) with JEDEC-standard byte-wide pinout. Pin 1 is No Connect (NC). The package features gull-wing leads, matte tin finish, and RoHS-compliant green (Pb/halide-free) construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus (A0–A16) selects one of 131,072 locations; A7–A16 define page boundaries for 128-byte page writes. |
| I/O0–I/O7 | Bi-directional Data Bus | 8-bit parallel data path; I/O7 provides DATA Polling feedback; I/O6 provides Toggle Bit status during write cycles. |
| CE | Chip Enable | Active-low chip select; must be low for read/write; high-Z output when CE high, regardless of OE state. |
| OE | Output Enable | Active-low output control; enables data output only when CE is also low - prevents bus contention in shared-memory systems. |
| WE | Write Enable | Active-low write strobe; initiates byte or page write on falling edge; combined with CE/OE logic to define operating mode. |
| VCC | Power Supply | +5V ±10% supply; internal VCC sense disables writes below ~3.8 V to prevent corruption during brown-out conditions. |
| GND | Ground Reference | Signal and power ground reference; decoupling capacitor required near VCC pin for stable operation. |
| NC | No Connect | Pin 1 (PLCC) is unconnected - must remain floating; not used for thermal or mechanical purposes. |
Key Features
| Feature | Design Value |
|---|---|
| 128-byte Page Write | Reduces firmware update time by up to 128× vs. byte-write; host processor releases address/data bus after first byte, enabling concurrent tasks. |
| DATA Polling & Toggle Bit | Hardware-confirmed write completion detection via I/O7 (data complement) or I/O6 (toggle); eliminates need for fixed delays or external timers. |
| Software Data Protection (SDP) | User-enabled 3-byte command sequence (AAh/55h/A0h) prevents accidental writes; remains active across power cycles until explicitly disabled. |
| Hardware Write Inhibit | Automatic protection during power ramp-up (5 ms delay), brown-out (<3.8 V), and noise rejection (15 ns pulse filter on WE/CE). |
| Device Identification Area | 128-byte reserved EEPROM region (1FF80h–1FFFFh) accessible with A9 = 12 V; supports unique device serialization or calibration data storage. |
Applications
| Industrial PLC Configuration Storage | Firmware Boot Memory for 8051-based Controllers |
|---|---|
|
Use Scenario: Storing ladder logic parameters, I/O mapping, and calibration coefficients in programmable logic controllers deployed in factory environments. IC Role / Device Role / Timing Role: Nonvolatile configuration memory accessed at power-up and runtime; retains settings across 100,000+ power cycles. Use Value: Enables field reconfiguration without hardware changes; 10-year data retention ensures long-term operational integrity in unattended systems. |
Use Scenario: Holding boot code and initialization routines for legacy 8-bit microcontrollers where external ROM is required before internal flash initialization. IC Role / Device Role / Timing Role: Parallel boot memory mapped into upper address space; 150 ns access satisfies 6–7 MHz bus timing without wait states. Use Value: Provides deterministic boot latency and eliminates dependency on internal flash wear-out; supports secure firmware updates via page-write. |
| Medical Device Calibration Register | Telecom Line Card Parameter Storage |
|
Use Scenario: Storing sensor offset/gain values and regulatory compliance logs in portable diagnostic equipment subject to frequent recalibration. IC Role / Device Role / Timing Role: High-reliability parameter memory with 100,000-cycle endurance; accessed via microcontroller GPIO-banked parallel interface. Use Value: Guarantees >10 years of calibration traceability; software data protection prevents accidental overwrites during service procedures. |
Use Scenario: Maintaining channel-specific gain, filter, and fault-history data across hot-swap line cards in carrier-class DSLAMs and optical terminals. IC Role / Device Role / Timing Role: Industrial-grade nonvolatile memory tolerant of repeated insertion/removal; operates reliably at +85°C ambient. Use Value: Eliminates need for battery-backed SRAM; page-write capability allows rapid card provisioning during manufacturing and field replacement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT28C010-15JU | 10,000-cycle endurance; no 'E' suffix; same speed/package | Limited to infrequent updates (e.g., factory-programmed firmware) | Select when cost sensitivity outweighs endurance requirements and field updates are rare. |
| AT28C010E-12JU | 120 ns read access; identical endurance, package, and feature set | Requires tighter timing margins but enables higher bus clock rates (up to ~8 MHz) | Choose when system timing budget permits faster access and lower latency is critical. |
Compared with AT28C010-15JU, the AT28C010E-15JU delivers 10× higher endurance for field-updatable systems, while AT28C010E-12JU trades 30 ns faster access for marginally increased power consumption - both retain identical pinout, protection features, and industrial temperature rating.
Availability
AT28C010E-15JU is available at Aetrix Electronics and suitable for industrial PLC configuration storage, medical device calibration registers, telecom line card parameter storage, and legacy 8051-based boot memory applications requiring stable component supply and long-lifecycle support.
Supply support for AT28C010E-15JU 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 components, and memory solutions, with expertise in embedded control and nonvolatile storage technologies.
The AT28C010E-15JU belongs to Microchip's parallel EEPROM product line, designed specifically for reliable, pin-compatible replacement of EPROM and battery-backed SRAM in industrial and automotive-qualified systems requiring deterministic write timing and robust data retention.
FAQ
What is the maximum page write size supported by the AT28C010E-15JU?
The AT28C010E-15JU supports a maximum page write size of 128 bytes. This is enabled by its internal 128-byte page register, which latches address and data upon the first write strobe. Subsequent bytes must be loaded within 150 µs of the prior byte (tBLC), and all addresses must reside on the same page defined by A7–A16. The AT28C010E-15JU does not support larger block writes or sector erases.
How does DATA Polling work on the AT28C010E-15JU during a write cycle?
During a write cycle, reading the last written byte from the AT28C010E-15JU causes I/O7 to output the complement of the written data. Once the internal programming completes, I/O7 returns to true data. This allows the host controller to poll I/O7 without fixed delays. The AT28C010E-15JU requires no external circuitry for this detection - it is fully self-contained and functional across its full industrial temperature range.
Is the AT28C010E-15JU pin-compatible with older Atmel AT28C010 variants?
Yes, the AT28C010E-15JU maintains full JEDEC-standard byte-wide pinout compatibility with all AT28C010 family members in PLCC-32 packaging, including legacy Atmel versions. Pin functions, electrical tolerances, and AC timing parameters align with the original specification. The 'E' suffix denotes extended endurance (100,000 cycles), but does not affect pin assignment, voltage levels, or interface protocol.
What voltage is required to access the device identification area in the AT28C010E-15JU?
The device identification area (1FF80h–1FFFFh, 128 bytes) in the AT28C010E-15JU requires A9 to be raised to 12.0 V ± 0.5 V. This elevated voltage enables special programming and read access to the reserved region, which is otherwise inaccessible under standard 5 V operation. All other address and data pins operate at standard 5 V levels during this mode.
Does the AT28C010E-15JU support chip erase, and if so, how is it initiated?
Yes, the AT28C010E-15JU supports optional software chip erase using a 6-byte command sequence applied to specific addresses. Erase is initiated by applying 12.0 V ± 0.5 V to A9 while executing the sequence - details are documented in Microchip's Software Chip Erase application note. The AT28C010E-15JU does not support hardware reset-based or VPP-only erase methods.
AT28C010E-15JU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 32-LCC (J-Lead)
- Packaging:
- Tube
- 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)
AT28C010E-15JU FAQ
1.How can I place an order for AT28C010E-15JU through Aetrix?
Please submit a Request for Quotation (RFQ) for AT28C010E-15JU 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 AT28C010E-15JU reliable?
The price and inventory of AT28C010E-15JU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT28C010E-15JU is usually 5 days.
3.What payment methods are accepted for AT28C010E-15JU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT28C010E-15JU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT28C010E-15JU?
AT28C010E-15JU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT28C010E-15JU 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 AT28C010E-15JU?
For technical support, including AT28C010E-15JU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT28C010E-15JU requirements.
6.How does Aetrix verify that AT28C010E-15JU is sourced from the original manufacturer or authorized distributors?
All AT28C010E-15JU 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 AT28C010E-15JU meets industry standards.
7.What is the process for return or replacement of AT28C010E-15JU?
All AT28C010E-15JU units undergo pre-shipment inspection (PSI). If there is an issue with AT28C010E-15JU, 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 AT28C010E-15JU part is unused and in its original packaging.
Return procedure for AT28C010E-15JU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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