Microchip Technology AT28C010E-12DM/883

Overview

AT28C010E-12DM/883 from Microchip Technology is a military-grade 1-Mbit (131,072 × 8) paged parallel EEPROM with 120 ns read access time, 10 ms maximum page write cycle, and single 5V ±10% supply operation. It features hardware and software data protection, DATA polling for write completion detection, and JEDEC-approved byte-wide pinout. Used in avionics control modules requiring nonvolatile storage with guaranteed operation from –55°C to +125°C.

For engineers reviewing the AT28C010E-12DM/883 datasheet, AT28C010E-12DM/883 pinout, AT28C010E-12DM/883 application, or AT28C010E-12DM/883 equivalent, key selection considerations include military temperature range compliance (MIL-STD-883 Class B), 128-byte page write capability, CMOS/TTL compatibility, and hardware VCC-sense write inhibit - all critical for high-reliability embedded systems where data integrity across power transitions is mandatory.

Technical Context

The AT28C010E-12DM/883 implements a paged architecture with an internal 128-byte latch that accepts up to 128 bytes per write cycle, reducing bus occupancy versus byte-by-byte programming. Its dual-line chip enable (CE) and output enable (OE) control enables flexible bus contention management in multiprocessor systems.

Write operations are protected by three-tiered hardware safeguards: VCC sense (write inhibited below 3.8 V), 5 ms power-on delay, and noise filtering on CE/WE inputs (rejects <15 ns pulses). Software data protection uses a 3-byte command sequence (AAh/55h/A0h) to enable/disable write lock, independent of power cycling.

Key Specifications

Pinout & Package

AT28C010E-12DM/883 is supplied in a 32-lead CERDIP (Ceramic Dual Inline Package) with 0.600" width, compliant with MIL-STD-1835 D-16 Config A. Package dimensions: 42.70 mm × 15.50 mm × 4.10 mm (1.68" × 0.610" × 0.161"), hermetically sealed for moisture resistance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar EEPROM applications.

Compared with AT28C010-12DM/883, the AT28C010E-12DM/883 offers identical functionality with explicit non-SMD marking compliance, while MX28F1000PC-12I requires firmware rework and lacks software-level write security - making AT28C010E-12DM/883 the preferred choice for new MIL-STD-883 designs requiring field-programmable data protection.

Availability

AT28C010E-12DM/883 is available at Aetrix Electronics and suitable for avionics control systems, tactical communications equipment, missile guidance calibration, naval radar signal processing, and other defense electronics requiring stable component supply under extended temperature and radiation-hardened conditions.

Supply support for AT28C010E-12DM/883 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 U.S.-based semiconductor manufacturer specializing in microcontrollers, analog devices, and nonvolatile memory solutions for aerospace, defense, and industrial markets.

The AT28C010 product line delivers radiation-tolerant, high-endurance parallel EEPROMs designed specifically for MIL-STD-883-compliant systems requiring deterministic write timing, hardware-enforced data integrity, and long-term data retention in extreme environments.

FAQ

What is the maximum page write size supported by the AT28C010E-12DM/883?

The AT28C010E-12DM/883 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 WE or CE transition. Subsequent bytes must be loaded within 150 µs (tBLC) of the prior byte, and all addresses must reside on the same page defined by A7–A16. The AT28C010E-12DM/883 completes the entire 128-byte write in ≤10 ms.

Does the AT28C010E-12DM/883 require external high-voltage circuitry for programming?

No, the AT28C010E-12DM/883 operates from a single 5V ±10% supply and requires no external high-voltage programming circuitry. All write and erase functions - including byte write, page write, and optional chip erase - are performed using standard 5V logic levels. The AT28C010E-12DM/883 integrates internal charge pumps and voltage regulation to generate necessary programming voltages internally.

How does hardware write protection function on the AT28C010E-12DM/883?

Hardware write protection on the AT28C010E-12DM/883 employs three mechanisms: (1) VCC sense circuitry inhibits writes if supply drops below ~3.8 V; (2) a 5 ms internal power-on delay timer prevents writes until VCC stabilizes; and (3) a noise filter rejects CE/WE pulses shorter than 15 ns. These features operate independently of firmware and ensure the AT28C010E-12DM/883 remains immune to spurious writes during power transients or EMI events.

Can the AT28C010E-12DM/883 be used as a direct replacement for the AT28C010-12DM/883?

Yes, the AT28C010E-12DM/883 is a direct functional and pin-compatible replacement for the AT28C010-12DM/883. Both share identical die, electrical specifications, timing, and 32-lead CERDIP packaging. The "E" suffix denotes non-SMD marking per Microchip's packaging documentation (DS20006311A-page 21), but the AT28C010E-12DM/883 maintains full interchangeability in MIL-STD-883 Class B applications.

What is the purpose of the extra 128 bytes of EEPROM in the AT28C010E-12DM/883?

The AT28C010E-12DM/883 includes 128 bytes of dedicated identification EEPROM located at addresses 1FF80H–1FFFFH. This area is accessed by raising A9 to 12V ±0.5V and is intended for storing device-specific information such as calibration data, serial numbers, or manufacturing trace codes. It operates independently of the main 1-Mbit array and retains data for 10 years, providing permanent, tamper-resistant device identity storage.