ATMEL AT28C010-12DM/883
- 1Mbit (128K x 8) non-volatile EEPROM memory
- 120ns access time for high-speed data retrieval
- 5V single-supply operation for design simplicity
- Hermetic ceramic package for enhanced reliability
- Compliance with MIL-STD-883 military standards
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The Atmel (now Microchip) AT28C010-12DM/883 is a 1Mbit (131,072 × 8) paged parallel EEPROM, 120ns access time, MIL-STD-883 Class B screened, in a 32-lead 0.600″ wide hermetic ceramic dual-inline (Cerdip) package — operating from −55°C to +125°C full military temperature range. It is the mil-screened counterpart to the commercial AT28C010, carrying DESC Standard Military Drawing number 5962-38267 07 MXA and full Class B qualification for defense and aerospace nonvolatile memory applications.
AT28C010-12DM/883 vs. Commercial/Industrial Variants
| Parameter | AT28C010-12DM/883 (this) | AT28C010-12PC (commercial) |
|---|---|---|
| Access Time | 120 ns | 120 ns |
| Package | 32-CDIP (Cerdip, ceramic) | 32-PDIP (plastic) |
| Temperature Range | −55°C to +125°C | 0°C to +70°C |
| Screening | MIL-STD-883 Class B | Commercial |
| SMD Number | 5962-38267 07 MXA | N/A |
| Power Dissipation | 440 mW (active) | 220 mW |
| Standby Current | 300 µA max. | 200 µA max. |
| Write Endurance | 10,000 cycles (standard) | 10,000 cycles |
| Page Write | 128 bytes | 128 bytes |
| Supply Voltage | 5V ±10% | 5V ±10% |
The Cerdip (ceramic dual-inline) package provides hermetic sealing and long-term moisture resistance critical for avionics and defense embedded systems where plastic-packaged EEPROMs fail under extended environmental exposure. The 128-byte page write buffer enables fast data updates — the device internally latches up to 128 bytes in a single write cycle, freeing the bus immediately, then self-times the internal write operation using an on-chip write state machine. An optional software data protection feature guards against inadvertent writes from power transients or bus glitches. An extra 128 bytes of EEPROM is available for device identification, calibration storage, or serialization data — accessible without affecting the main 1Mb array.
FAQ
What does AT28C010-12DM/883 decode to?
AT28C = Atmel EEPROM family; 010 = 1Mbit (1,048,576 bits); −12 = 120ns access time; D = 32-lead Cerdip package; M = military temperature range (−55°C to +125°C); /883 = MIL-STD-883 Class B screening.
What is the DESC SMD number for this part?
5962-38267 07 MXA — the Defense Electronics Supply Center Standard Military Drawing for AT28C010-12DM/883. This SMD number places the part in the DLA qualified parts system for defense procurement.
What is the difference between /883 Class B and the commercial version?
Class B screening includes 100% burn-in at elevated temperature, electrical testing at temperature extremes (−55°C and +125°C), and additional quality conformance tests not performed on commercial parts. The Class B screened part also carries the DESC SMD number for QPL traceability.
What is page write mode and how does it work?
The AT28C010 contains a 128-byte internal page register. Up to 128 bytes with addresses on the same 128-byte page boundary can be written in a single bus cycle — the EEPROM internally latches all data, then executes the write while the bus is free for other operations. The internal write completes in approximately 10ms (self-timed).
What is the software data protection feature?
The AT28C010 includes an optional software-command-activated write protection sequence that locks the array against inadvertent writes. Once enabled, a specific 3-byte software unlock sequence must be issued before any write operations are accepted, guarding against false write cycles from power-up transients or bus contention.
What is the write endurance?
Standard AT28C010-12DM/883 is rated at 10,000 write cycles minimum. The “E” option (AT28C010E) provides 100,000 write cycle endurance for applications requiring frequent in-system updates — specify AT28C010E-12DM/883 for extended endurance.
