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Microchip Technology AT28C010-12UM/883
- Part No.:
- AT28C010-12UM/883
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 30-BCPGA
- Datasheet:
-
AT28C010-12UM/883.pdf
- Description:
- IC EEPROM 1MBIT PARALLEL 30CPGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,599
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Product details
Overview
AT28C010-12UM/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. It serves as nonvolatile program/data storage in avionics control modules requiring MIL-STD-883 compliance.
For engineers reviewing the AT28C010-12UM/883 datasheet, AT28C010-12UM/883 pinout, AT28C010-12UM/883 application, or AT28C010-12UM/883 equivalent, key selection criteria include its -55°C to +125°C operating temperature range, 10,000/100,000 endurance cycles, CMOS/TTL-compatible I/O, 300 µA standby current, and 32-pin PGA package with A0–A16 address lines and I/O0–I/O7 bidirectional data bus.
Technical Context
The AT28C010-12UM/883 implements a paged architecture with a 128-byte internal latch enabling simultaneous write of 1–128 bytes per cycle. Its internal control timer automates programming after address and data latching, freeing the bus during writes. Read operations emulate SRAM timing with dual-line CE/OE control to prevent bus contention.
Write protection combines VCC-sense circuitry (inhibits writes below 3.8 V), 5 ms power-on delay, noise filtering on WE/CE (<15 ns pulses ignored), and optional software data protection (SDP) enabled via three-byte command sequence at addresses 5555H/2AAAH/5555H. Device identification uses dedicated 128-byte memory region accessible with A9 = 12 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (131,072 × 8) - supports full firmware image or configuration table storage in space-constrained embedded systems |
| Read Access Time | 120 ns - enables direct replacement of SRAM in legacy 8-bit microcontroller buses without wait-state insertion |
| Page Write Cycle | ≤10 ms - reduces firmware update latency compared to byte-write-only EEPROMs by batching up to 128 bytes |
| Operating Voltage | 5 V ±10% - compatible with standard TTL/CMOS logic rails and eliminates need for auxiliary voltage regulators |
| Endurance | 10,000 or 100,000 cycles - supports field-upgradable mission-critical parameters in aerospace telemetry units |
| Data Retention | 10 years - ensures long-term integrity of calibration constants and flight log metadata without refresh |
| Supply Current | 80 mA active / 300 µA standby - minimizes thermal load and battery drain in always-on avionics subsystems |
Pinout & Package
AT28C010-12UM/883 is packaged in a 30-pin Ceramic Pin Grid Array (PGA), compliant with MIL-STD-883 Class B screening and marked with /883 suffix. Pin layout follows JEDEC byte-wide convention with dedicated address (A0–A16), bidirectional data (I/O0–I/O7), and control (CE, OE, WE) terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus supporting full 131,072-word addressing; A7–A16 define page boundaries for 128-byte writes |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit parallel interface compatible with 8051, Z80, and 68K family microcontrollers; supports DATA polling on I/O7 and toggle bit on I/O6 |
| CE | Chip Enable | Active-low chip select; must be low with OE low and WE high for read; initiates write when pulsed low with OE high |
| OE | Output Enable | Active-low output gate; controls data bus tristate; required high during write operations to prevent contention |
| WE | Write Enable | Active-low write strobe; falling edge latches address; rising edge latches data; used with CE for dual-trigger write safety |
| VCC | Power Supply | +5 V ±10% primary supply; powers core logic and I/O buffers; internal VCC sense disables writes below 3.8 V |
| GND | Ground Reference | Signal and power return path; decoupling capacitor placement near pin critical for noise immunity in high-reliability systems |
Key Features
| Feature | Design Value |
|---|---|
| Page Write Architecture | 128-byte internal latch enables burst programming without external address sequencing logic or DMA overhead |
| DATA Polling & Toggle Bit | Dual asynchronous write-completion detection (I/O7 complement, I/O6 toggling) eliminates need for fixed-delay polling loops |
| Hardware Write Protection | VCC monitoring, 5 ms power-on delay, and WE/CE noise filtering prevent spurious writes during brown-out or EMI events |
| Software Data Protection (SDP) | User-configurable lock via 3-byte command sequence (5555H/2AAAH/5555H); persists across power cycles and supports selective unlock |
| MIL-STD-883 Qualified | Screened to Class B requirements including temperature cycling (-55°C to +125°C), mechanical shock, and hermeticity testing |
Applications
| Avionics Flight Control Unit | Satellite Onboard Computer |
|---|---|
Use Scenario: Storing real-time sensor calibration coefficients and actuator trim values updated during pre-flight checks. IC Role / Device Role / Timing Role: Nonvolatile configuration register providing deterministic read latency (<120 ns) for closed-loop control loop initialization. Use Value: Eliminates boot-time reprogramming delays and ensures parameter persistence across power cycles and radiation-induced resets. |
Use Scenario: Holding spacecraft attitude determination algorithms and orbital maneuver tables subject to infrequent updates. IC Role / Device Role / Timing Role: Radiation-tolerant program memory supplementing SRAM-based execution, accessed via 8-bit parallel bus. Use Value: 10-year data retention and 100,000-cycle endurance support multi-mission reconfiguration without hardware replacement. |
| Tactical Radio Transceiver | Military Vehicle Diagnostic Module |
Use Scenario: Secure storage of cryptographic keys and frequency-hopping sequences with tamper-resistant write protection. IC Role / Device Role / Timing Role: Secure key vault using SDP-enabled write lock; reads occur during secure boot handshake with <120 ns response. Use Value: Hardware-enforced write inhibition prevents unauthorized key overwrite during electromagnetic pulse (EMP) events. |
Use Scenario: Logging engine fault codes and maintenance history in armored ground vehicles exposed to wide thermal swings. IC Role / Device Role / Timing Role: Ruggedized event logger interfacing directly to 80C51 microcontroller via parallel bus with CE/OE arbitration. Use Value: -55°C to +125°C operation and 300 µA standby current enable continuous logging in unheated engine bays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT28C010-15UM/883 | 150 ns read access time vs. 120 ns; identical pinout, endurance, and packaging | Acceptable where system timing budget allows 30 ns longer read latency | Select when cost optimization outweighs marginal timing advantage of AT28C010-12UM/883 |
| AT28C256-15UM/883 | 256 Kbit density (32K × 8), 150 ns access, same 30-pin PGA package and MIL-STD-883 qualification | Lower capacity suits simpler diagnostics or legacy designs with smaller firmware footprints | Choose when memory requirement is ≤256 Kbit and board layout reuse of 30-pin PGA footprint is prioritized |
Compared with AT28C010-12UM/883, the AT28C010-15UM/883 trades 30 ns slower read speed for potential cost reduction, while the AT28C256-15UM/883 offers half the density in identical packaging-enabling drop-in replacement where firmware size permits, without altering PCB layout or thermal design.
Availability
AT28C010-12UM/883 is available at Aetrix Electronics and suitable for avionics flight control units, satellite onboard computers, tactical radio transceivers, and military vehicle diagnostic modules requiring stable component supply under extended temperature and radiation-hardened conditions.
Supply support for AT28C010-12UM/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 global semiconductor company specializing in microcontrollers, analog devices, and memory solutions, with leadership in automotive, industrial, and aerospace markets.
The AT28C010 product line delivers high-reliability parallel EEPROMs designed for mission-critical embedded systems where deterministic timing, data integrity, and MIL-STD-883 qualification are mandatory.
FAQ
What is the operating temperature range for the AT28C010-12UM/883?
The AT28C010-12UM/883 is qualified for operation from -55°C to +125°C, meeting MIL-STD-883 Class B environmental screening requirements. This range is validated across all electrical parameters including read access time (120 ns), write cycle time (≤10 ms), and standby current (≤300 µA), making it suitable for deployment in jet engine compartments and spaceborne electronics.
How does the page write function work on the AT28C010-12UM/883?
The AT28C010-12UM/883 uses an internal 128-byte latch to accept 1–128 bytes in rapid succession: the first byte initiates the page write, and subsequent bytes must arrive within 150 µs (tBLC) of the prior byte. All bytes must reside on the same page (defined by A7–A16), and A0–A6 select target locations within that page. The internal control timer then executes the full write autonomously.
Does the AT28C010-12UM/883 support both hardware and software write protection?
Yes, the AT28C010-12UM/883 implements dual-layer protection: hardware features include VCC sensing (<3.8 V inhibits writes), 5 ms power-on delay, WE/CE noise filtering, and CE/OE/WE state validation; software protection is enabled via a three-byte command sequence (5555H/2AAAH/5555H) that locks writes until explicitly disabled, persisting across power cycles.
What package type is used for the AT28C010-12UM/883?
The AT28C010-12UM/883 is supplied in a 30-pin Ceramic Pin Grid Array (PGA) package, identified by the "UM" suffix in the part number and marked with "/883" per MIL-STD-883 requirements. This hermetic ceramic package provides superior moisture resistance and thermal stability for high-reliability military and aerospace applications.
Can the AT28C010-12UM/883 be used as a direct replacement for standard SRAM in existing designs?
The AT28C010-12UM/883 supports SRAM-like read access with identical CE/OE/WE control signaling and 120 ns timing, allowing direct substitution in read-dominant systems. However, write operations require explicit page management and completion detection (via DATA polling or toggle bit), so existing SRAM write routines must be modified to accommodate its EEPROM-specific write protocol.
AT28C010-12UM/883 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 30-BCPGA
- Packaging:
- Box
- 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:
- 120 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -55°C ~ 125°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 30-CPGA (16.51x13.97)
AT28C010-12UM/883 FAQ
1.How can I place an order for AT28C010-12UM/883 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT28C010-12UM/883 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 AT28C010-12UM/883 reliable?
The price and inventory of AT28C010-12UM/883 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT28C010-12UM/883 is usually 5 days.
3.What payment methods are accepted for AT28C010-12UM/883?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT28C010-12UM/883 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT28C010-12UM/883?
AT28C010-12UM/883 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT28C010-12UM/883 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 AT28C010-12UM/883?
For technical support, including AT28C010-12UM/883 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT28C010-12UM/883 requirements.
6.How does Aetrix verify that AT28C010-12UM/883 is sourced from the original manufacturer or authorized distributors?
All AT28C010-12UM/883 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 AT28C010-12UM/883 meets industry standards.
7.What is the process for return or replacement of AT28C010-12UM/883?
All AT28C010-12UM/883 units undergo pre-shipment inspection (PSI). If there is an issue with AT28C010-12UM/883, 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 AT28C010-12UM/883 part is unused and in its original packaging.
Return procedure for AT28C010-12UM/883:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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