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Microchip Technology AT28C010E-12JI
- Part No.:
- AT28C010E-12JI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-LCC (J-Lead)
- Datasheet:
-
AT28C010E-12JI.pdf
- Description:
- IC EEPROM 1MBIT PARALLEL 32PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,675
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Product details
Overview
AT28C010E-12JI from Microchip Technology (formerly Atmel) is a 1 Mbit (128K × 8) paged parallel EEPROM with JEDEC-standard byte-wide pinout, 120 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-12JI datasheet, AT28C010E-12JI pinout, AT28C010E-12JI application, or AT28C010E-12JI equivalent, this device delivers verified endurance of 100,000 write cycles, CMOS standby current under 200 µA, DATA polling and toggle-bit write completion detection, and full compatibility with SRAM-like bus interfacing in legacy industrial control and telecom systems.
Technical Context
The AT28C010E-12JI implements a paged write architecture with a 128-byte internal page register, enabling simultaneous latching of up to 128 bytes before autonomous internal programming. Its dual-line chip enable (CE) and output enable (OE) control allows flexible bus contention management during read operations.
Write operation relies on either CE- or WE-controlled timing with strict tBLC (150 µs) inter-byte loading constraints within a page; end-of-write is confirmed via I/O7 data polling or I/O6 toggle-bit behavior-both fully characterized and supported across all operating conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (131,072 × 8), organized as 128K words × 8 bits - directly replaces SRAM in boot memory maps without address decoding changes. |
| Read Access Time | 120 ns max - enables direct interface with 8-MHz microcontrollers without wait states. |
| Page Write Cycle | 10 ms max - reduces firmware update latency vs. byte-by-byte EEPROMs; supports burst writes of up to 128 bytes per command. |
| Endurance | 100,000 write/erase cycles - validated high-endurance variant ('E' suffix), suitable for field-upgradable parameter storage. |
| Standby Current | 200 µA CMOS - enables low-power retention in battery-backed systems and energy-sensitive industrial nodes. |
| Supply Voltage | 5V ±10% - compatible with legacy 5V logic families and eliminates need for auxiliary voltage regulators. |
| Operating Temperature | –40°C to +85°C - qualified for industrial control cabinets, motor drives, and outdoor telecom equipment. |
Pinout & Package
AT28C010E-12JI is supplied in a 32-lead Plastic J-leaded Chip Carrier (PLCC) package with JEDEC MS-016 AE outline, lead pitch 1.27 mm, and body size 18.5 × 18.5 mm. Pin 1 is marked by index notch and is designated "Don't Connect" (DC) per datasheet.
| 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 during writes. |
| CE | Chip Enable | Active-low global enable; when high, forces outputs to high-impedance and inhibits all writes - critical for bus isolation. |
| OE | Output Enable | Active-low read control; used with CE to prevent bus contention; must be high during write cycles. |
| WE | Write Enable | Active-low write strobe; falling edge latches address/data; controls initiation of byte or page write sequences. |
| VCC | Power Supply | +5V ±10% supply input; includes internal VCC sense circuitry that blocks writes below ~3.8V to prevent corruption during power ramp. |
| GND | Ground Reference | Signal and power ground reference for all inputs, outputs, and internal logic - requires low-impedance PCB connection. |
| NC / DC | No Connect / Don't Connect | Pins 1, 17, and 32 are unconnected; pin 1 is index marker and must remain floating - no external tie required. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Data Protection | VCC sense, 5 ms power-on delay, noise filtering (<15 ns), and multi-signal write inhibit (CE high / OE low / WE high) prevent spurious writes during power transitions. |
| Software Data Protection (SDP) | User-configurable lock via 3-byte command sequence (AAh/55h/A0h); remains active across power cycles and requires re-authentication for each protected write. |
| Page Write Architecture | 128-byte internal latch allows host CPU to release address/data bus after first byte - enables concurrent background processing during 10 ms internal programming. |
| Write Completion Detection | Dual-mode confirmation: I/O7 returns complemented data until write completes (DATA polling), or I/O6 toggles at ~1 MHz (toggle bit) - both usable without additional hardware. |
| Device Identification Area | 128-byte reserved sector (1FF80h–1FFFFh) accessible with A9 = 12V ±0.5V - supports unique serialization, calibration data, or revision tracking. |
Applications
| Firmware Boot Memory | Industrial PLC Configuration Storage |
|---|---|
Use Scenario: Storing bootloader code and initial firmware images in microcontroller-based edge devices requiring cold-start reliability. IC Role / Device Role / Timing Role: Nonvolatile program memory mapped into CPU address space; accessed as SRAM during reset vector fetch. Use Value: 120 ns read access ensures zero-wait-state execution; 100K endurance supports field firmware updates over 10+ years. |
Use Scenario: Retaining user-defined I/O mapping, PID tuning parameters, and alarm thresholds in programmable logic controllers deployed in factory automation. IC Role / Device Role / Timing Role: Parameter EEPROM interfaced via parallel bus; updated only during commissioning or maintenance mode. Use Value: Hardware/software write protection prevents accidental corruption during EMI-heavy operation; –40°C to +85°C rating ensures stability inside control cabinets. |
| Telecom Line Card Calibration Data | Medical Device Safety-Critical Settings |
Use Scenario: Storing RF front-end calibration coefficients and gain tables in base station line cards subject to thermal cycling and long service life. IC Role / Device Role / Timing Role: High-reliability nonvolatile storage accessed during power-up initialization; data retained for ≥10 years. Use Value: 10-year data retention and 100K-cycle endurance meet Telcordia GR-468 reliability requirements; page write minimizes update time during factory calibration. |
Use Scenario: Holding FDA-mandated default therapy parameters and audit logs in Class II medical infusion pumps where data integrity is safety-critical. IC Role / Device Role / Timing Role: Secure configuration memory with dual write verification (DATA polling + toggle bit) and voltage-monitored write inhibition. Use Value: VCC-sense and SDP ensure writes occur only under controlled conditions; 200 µA standby current extends battery backup runtime during AC loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar paged parallel EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT28C010-12JI | Standard endurance: 10K cycles; same pinout, timing, and features except reduced write lifetime. | Suitable for infrequently updated systems (e.g., static configuration storage). | Select only if field firmware updates are rare and cost sensitivity outweighs longevity requirements. |
| MX28F1000PC-12 | Intel-compatible 1 Mbit Flash (not EEPROM); requires sector erase before write; no page write or DATA polling. | Requires full software rewrite of 64 KB sectors; incompatible with byte/page write protocols. | Not drop-in; requires driver redesign and erase management - avoid unless migrating to Flash architecture. |
Compared with AT28C010E-12JI, the standard AT28C010-12JI offers identical interface and timing but only 10K write cycles - insufficient for frequent field updates - while MX28F1000PC-12 is a functionally distinct Flash device requiring erase-before-write and lacking real-time write status feedback.
Availability
AT28C010E-12JI is available at Aetrix Electronics and suitable for industrial control systems, telecom infrastructure equipment, and medical device manufacturing requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for AT28C010E-12JI 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 acquired Atmel in 2016 and maintains full support for legacy Atmel parallel EEPROMs including the AT28C010 family. The company specializes in secure, reliable, and long-lifecycle semiconductor solutions for industrial and automotive markets.
The AT28C010E-12JI belongs to Atmel's parallel EEPROM product line, designed specifically for legacy 5V system upgrades and applications demanding SRAM-like interface simplicity with nonvolatile storage - emphasizing robustness, ease of integration, and field-programmability without complex controller overhead.
FAQ
What is the endurance rating of the AT28C010E-12JI?
The AT28C010E-12JI is rated for 100,000 write/erase cycles - a key differentiator from the standard AT28C010-12JI (10K cycles). This high-endurance specification is validated per JEDEC standards and makes the AT28C010E-12JI suitable for applications requiring frequent field updates, such as firmware patching or dynamic parameter storage in industrial controllers.
How does write completion detection work on the AT28C010E-12JI?
The AT28C010E-12JI supports two independent, hardware-verified methods: DATA polling (monitoring I/O7 for complemented data) and toggle-bit detection (observing I/O6 toggling at ~1 MHz). Both operate without external components and are fully characterized across temperature and voltage - enabling deterministic host-side write synchronization in the AT28C010E-12JI.
Can the AT28C010E-12JI be used as a direct replacement for SRAM in existing designs?
Yes - the AT28C010E-12JI uses JEDEC-standard byte-wide pinout and behaves electrically like SRAM during reads (CE/OE low, WE high). However, write cycles require explicit timing control and status polling; unlike SRAM, the AT28C010E-12JI does not support true random-write concurrency and requires host coordination for page writes and completion detection.
What is the purpose of the 'E' suffix in AT28C010E-12JI?
The 'E' suffix denotes the high-endurance variant of the AT28C010, specifying 100,000 write/erase cycles instead of the standard 10,000. This is achieved through process-level enhancements in Microchip's (formerly Atmel's) nonvolatile CMOS technology and is explicitly documented in the ordering information table - confirming that AT28C010E-12JI meets extended lifecycle requirements.
Does the AT28C010E-12JI support software data protection, and how is it enabled?
Yes - the AT28C010E-12JI includes user-configurable Software Data Protection (SDP) enabled via a precise three-byte command sequence (AAh to 5555h, 55h to 2AAAh, A0h to 5555h). Once activated, SDP remains active across power cycles and requires reissuing the sequence before each protected write - a feature confirmed in the AT28C010E-12JI datasheet section "Software Data Protection Enable Algorithm".
AT28C010E-12JI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 32-LCC (J-Lead)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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-PLCC (13.97x11.43)
AT28C010E-12JI FAQ
1.How can I place an order for AT28C010E-12JI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT28C010E-12JI 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-12JI reliable?
The price and inventory of AT28C010E-12JI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT28C010E-12JI is usually 5 days.
3.What payment methods are accepted for AT28C010E-12JI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT28C010E-12JI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT28C010E-12JI?
AT28C010E-12JI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT28C010E-12JI 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-12JI?
For technical support, including AT28C010E-12JI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT28C010E-12JI requirements.
6.How does Aetrix verify that AT28C010E-12JI is sourced from the original manufacturer or authorized distributors?
All AT28C010E-12JI 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-12JI meets industry standards.
7.What is the process for return or replacement of AT28C010E-12JI?
All AT28C010E-12JI units undergo pre-shipment inspection (PSI). If there is an issue with AT28C010E-12JI, 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-12JI part is unused and in its original packaging.
Return procedure for AT28C010E-12JI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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