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AT28C010E-12PI
Microchip Technology
IC EEPROM 1MBIT PARALLEL 32DIP
1295 Pcs New Original In Stock
EEPROM Memory IC 1Mbit Parallel 120 ns 32-PDIP
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5.0 / 5.0
- (155 Ratings)
AT28C010E-12PI
Product Overview
1302235
DiGi Electronics Part Number
AT28C010E-12PI-DGManufacturer
Microchip Technology
AT28C010E-12PI
Description
IC EEPROM 1MBIT PARALLEL 32DIPInventory
1295 Pcs New Original In Stock
EEPROM Memory IC 1Mbit Parallel 120 ns 32-PDIP
Quantity
Minimum 1
Minimum 1
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365 - Day Quality Guarantee - Every part fully backed.
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AT28C010E-12PI Technical Specifications
Category
Memory, Memory
Packaging
-
Series
-
Product Status
Obsolete
DiGi-Electronics Programmable
Not Verified
Memory Type
Non-Volatile
Memory Format
EEPROM
Technology
EEPROM
Memory Size
1Mbit
Memory Organization
128K x 8
Memory Interface
Parallel
Write Cycle Time - Word, Page
10ms
Access Time
120 ns
Voltage - Supply
4.5V ~ 5.5V
Operating Temperature
-40°C ~ 85°C (TC)
Mounting Type
Through Hole
Package / Case
32-DIP (0.600", 15.24mm)
Supplier Device Package
32-PDIP
Base Product Number
AT28C010
Datasheet & Documents
HTML Datasheet
AT28C010E-12PI-DG
Environmental & Export Classification
RoHS Status
RoHS non-compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.32.0051
Additional Information
Other Names
AT28C010E12PI
Standard Package
12
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
가격 대비 성능이 뛰어나고 제품의 품질이 기대 이상이에요.
de desembre 02, 2025
Les produits ont conservé leur performance après plusieurs mois d’usage intensif, témoignant de leur durabilité.
de desembre 02, 2025
Their shipping process is smooth and dependable, ensuring rapid delivery.
de desembre 02, 2025
My experience confirms that this product is designed to last, with packaging that guarantees safe arrival.
de desembre 02, 2025
Shipping deadlines are always met, reducing our waiting time.
de desembre 02, 2025
Their commitment to quality makes me a loyal customer.
de desembre 02, 2025
Their team’s friendliness and affordable pricing make shopping a stress-free experience.
de desembre 02, 2025
DiGi Electronics’ logistical approach is well-organized, allowing rapid scaling of our operations.
de desembre 02, 2025
Reliable, fast, and friendly service—my top choice.
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Frequently Asked Questions (FAQ)
Can the AT28C010E-12PI be safely replaced with a modern 1Mbit parallel EEPROM like the Microchip AT28C010-15PU in a legacy industrial control system, and what compatibility risks should I evaluate?
While the AT28C010-15PU shares the same 1Mbit (128K x 8) organization and parallel interface as the obsolete AT28C010E-12PI, direct replacement requires careful validation. Key risks include timing differences—the -15PU has a 150 ns access time versus 120 ns on the original—which may affect high-speed read cycles in time-critical systems. Additionally, verify that the newer part’s 5V-only operation aligns with your supply rail, and confirm pin-for-pin compatibility in the 32-PDIP package. Always test under worst-case temperature (-40°C to 85°C) and voltage (4.5V min) conditions to ensure reliable operation before full deployment.
What are the critical design considerations when using the AT28C010E-12PI in a high-reliability automotive application near its -40°C to 85°C operating limit?
Operating the AT28C010E-12PI at temperature extremes demands attention to data retention and write endurance. At 85°C, EEPROM write cycles can accelerate oxide degradation, reducing effective lifespan—especially if frequent reprogramming is required. Ensure your firmware implements wear-leveling or limits write frequency to mitigate this. Also, verify that your system’s VCC remains within 4.5V–5.5V under thermal stress, as brownouts during writes can cause partial page corruption. Consider adding a power-good monitor and write-inhibit logic to prevent incomplete operations during supply transients.
How does the 10ms write cycle time of the AT28C010E-12PI impact real-time system design, and what strategies can prevent data loss during power interruption?
The 10ms per-word/page write time of the AT28C010E-12PI introduces a significant blocking period that can disrupt real-time task scheduling. To avoid system hangs, implement non-blocking writes using an RTOS task or interrupt-driven state machine that polls the device’s ready/busy signal. Crucially, because the part lacks built-in power-fail detection, a sudden power loss during the 10ms window may corrupt the target page. Mitigate this by using a supercapacitor or battery backup to sustain VCC long enough to complete pending writes, or design your firmware to buffer critical data in SRAM and commit only during safe power conditions.
Is it safe to interface the AT28C010E-12PI directly with a 3.3V microcontroller, and what level-shifting or protection circuitry is recommended?
No—the AT28C010E-12PI requires a 4.5V to 5.5V supply and has TTL-compatible input thresholds that may not reliably recognize 3.3V logic highs as valid '1' levels. Direct connection risks marginal signal integrity, especially at 120 ns access speeds. Use a bidirectional level shifter (e.g., TXB0108) on the data bus and unidirectional shifters (e.g., SN74LVC8T245) for control lines (OE, WE, CE). Alternatively, power the EEPROM from a clean 5V rail and ensure all MCU I/Os tolerate 5V inputs. Never rely on internal MCU clamping diodes for sustained 5V exposure, as this can cause latch-up or long-term reliability issues.
Given that the AT28C010E-12PI is obsolete and RoHS non-compliant, what are the long-term sourcing and compliance risks for medical or industrial equipment still in production?
Using the AT28C010E-12PI poses significant lifecycle and regulatory risks. As an obsolete, non-RoHS part, future availability is unreliable, and last-time buys may carry counterfeit or degraded stock risks—especially since it's not verified under DiGi-Electronics’ programmable program. For medical or industrial systems requiring 10+ year support, this creates redesign pressure. Evaluate pin-compatible alternatives like the STMicroelectronics M95M01-DR (SPI, but may require interface changes) or migrate to modern parallel Flash with EEPROM emulation. If continuation is unavoidable, secure a multi-year inventory buffer and implement rigorous incoming inspection (X-ray, decapsulation) to detect counterfeits.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
AT28C010E-12PI CAD Models
Microchip Technology AT28C010E-12PI PCB symbols & footprints
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