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Microchip Technology AT28C010E-15PU
- Part No.:
- AT28C010E-15PU
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-DIP (0.600", 15.24mm)
- Datasheet:
-
AT28C010E-15PU.pdf
- Description:
- IC EEPROM 1MBIT PARALLEL 32DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,068
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Product details
Overview
AT28C010E-15PU from Atmel is a 1 Mbit (128K × 8) paged parallel EEPROM with JEDEC-standard byte-wide pinout, 150 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-15PU datasheet, AT28C010E-15PU pinout, AT28C010E-15PU application, or AT28C010E-15PU equivalent, key selection criteria include page-write endurance (100K cycles), DATA polling/toggle-bit write completion detection, CMOS/TTL I/O compatibility, and green (Pb/halide-free) PDIP packaging.
Technical Context
The AT28C010E-15PU implements a paged architecture with a 128-byte internal latched buffer, enabling simultaneous write of 1–128 bytes per internal programming cycle. Its dual-line chip enable (CE) and output enable (OE) control allows flexible bus contention management during read operations.
Write operation relies on internal timing with no external clock required: address and data are latched on CE/WE edges, followed by autonomous internal programming. End-of-write detection is supported via DATA polling on I/O7 or toggle-bit behavior on I/O6 - both usable at any point during the write cycle.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (131,072 × 8), organized as 128K words × 8 bits - supports full-system firmware or parameter storage without external address multiplexing. |
| Read Access Time | 150 ns max - compatible with 6 MHz Z80, 8 MHz 8051, and similar legacy microcontrollers requiring fast parallel memory access. |
| Page Write Cycle | 10 ms max - enables efficient bulk updates (e.g., field firmware patches) while minimizing system downtime vs. byte-by-byte writes. |
| Endurance | 100,000 write/erase cycles - validated high-endurance variant ('E' suffix) suitable for applications requiring frequent reconfiguration or logging. |
| Data Retention | 10 years at 85°C - ensures long-term reliability in unattended industrial equipment and telecom infrastructure. |
| Supply Voltage | 5V ±10% - eliminates need for dedicated voltage regulators in 5V logic systems; VCC sense circuitry inhibits writes below 3.8V. |
| Standby Current | 200 µA CMOS - enables low-power sleep modes in battery-backed or energy-sensitive applications. |
Pinout & Package
AT28C010E-15PU uses a 32-lead Plastic Dual Inline Package (PDIP), 0.600" wide (32P6), with JEDEC-standard byte-wide pinout and through-hole mounting. Pin 1 is A0; pin 32 is VCC; pins 17–24 are I/O0–I/O7; CE, OE, and WE are dedicated control inputs; A0–A16 provide full 17-bit addressing; NC pins are internally unconnected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus supporting full 128K-word decoding; A7–A16 define page boundaries for 128-byte page writes. |
| CE | Chip Enable | Active-low global device select; when high, forces outputs to high-impedance and inhibits all writes regardless of OE/WE state. |
| OE | Output Enable | Active-low read control; must be low with CE low and WE high for valid data output; enables bus sharing with other peripherals. |
| WE | Write Enable | Active-low write strobe; falling edge latches address/data; rising edge initiates internal programming; noise-filtered against <15 ns glitches. |
| 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 write status indication. |
| VCC | Power Supply | +5V ±10% main supply; powers internal latches, timers, and EEPROM array; includes VCC sense for write inhibition during brownout. |
| GND | Ground Reference | Signal and power return; pin 16 in PDIP; decoupling capacitor placement near this pin critical for stable write timing. |
Key Features
| Feature | Design Value |
|---|---|
| 128-byte page register | Enables burst loading of up to 128 bytes before internal programming begins - frees address/data bus for concurrent host operations. |
| DATA polling on I/O7 | Allows real-time detection of write completion without fixed delays or external timers - reduces software overhead in interrupt-driven systems. |
| Software Data Protection (SDP) | User-configurable 3-byte unlock sequence prevents accidental writes during power transitions - retains protection across power cycles. |
| Dual write detection (polling + toggle bit) | Provides redundant, pin-level confirmation of write completion - improves robustness in noisy industrial environments. |
| 128-byte device ID area | Separate EEPROM segment (1FF80H–1FFFFH) accessible via 12V on A9 - supports unique unit serialization or calibration data storage. |
Applications
| Industrial PLC Configuration Storage | Legacy Microcontroller Boot Memory |
|---|---|
Use Scenario: Storing ladder logic parameters, I/O mapping tables, and calibration coefficients in programmable logic controllers deployed in factory automation. IC Role / Device Role / Timing Role: Nonvolatile configuration memory accessed during power-up and runtime reconfiguration; requires guaranteed 10-year data retention at 70°C ambient. Use Value: AT28C010E-15PU's 100K endurance and industrial temperature rating ensure reliable parameter updates over 10+ years of daily commissioning cycles. |
Use Scenario: Holding boot firmware for Z80- or 8051-based instrumentation where ROM replacement is impractical and field updates are required. IC Role / Device Role / Timing Role: Parallel boot ROM replacement with direct address/data bus interface; 150 ns access satisfies 6–8 MHz CPU timing constraints. Use Value: JEDEC pinout and TTL/CMOS compatibility allow drop-in replacement of obsolete EPROMs without PCB redesign or level-shifter components. |
| Telecom Line Card Parameter Memory | Medical Device Calibration Storage |
Use Scenario: Retaining channel gain settings, filter coefficients, and fault logs in DSLAM line cards operating continuously in temperature-controlled cabinets. IC Role / Device Role / Timing Role: High-reliability nonvolatile memory supporting infrequent but critical parameter writes; must survive 100K+ power cycles over 15-year service life. Use Value: AT28C010E-15PU's 100K write endurance and 10-year data retention meet GR-1089-CORE immunity and Telcordia reliability requirements. |
Use Scenario: Storing sensor offset corrections, transducer linearization tables, and regulatory audit trails in portable diagnostic devices subject to periodic recalibration. IC Role / Device Role / Timing Role: Secure, tamper-resistant configuration memory with hardware/software write protection to prevent unauthorized parameter modification. Use Value: VCC-sense write inhibit and SDP algorithm ensure calibration data integrity during battery swaps or low-voltage conditions per IEC 62304 Class B requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar paged parallel EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT28C010-15PU | Standard endurance: 10K cycles; same package, speed, and pinout as AT28C010E-15PU | Suitable for low-update-frequency applications (e.g., one-time factory programming) | Select when cost sensitivity outweighs field-upgrade requirements and write cycles remain under 10K lifetime. |
| MN63C010-15PL | 100K endurance, 150 ns access, identical PDIP-32 footprint and JEDEC pinout; manufactured by Macronix | Same functional replacement with identical timing and protection features; qualified for extended industrial use | Valid second-source option with full pin-and-function equivalence; recommended for supply chain diversification without design change. |
Compared with AT28C010E-15PU, the standard AT28C010-15PU reduces endurance to 10K cycles but maintains identical timing and packaging - ideal for static configuration storage. The MN63C010-15PL offers identical 100K-cycle performance and drop-in compatibility, providing a qualified alternate source without layout or firmware changes.
Availability
AT28C010E-15PU is available at Aetrix Electronics and suitable for industrial PLCs, legacy microcontroller boot systems, telecom line cards, medical calibration modules, and embedded instrumentation requiring stable component supply and long-lifecycle support.
Supply support for AT28C010E-15PU 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
Atmel Corporation (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in microcontrollers, nonvolatile memory, and secure authentication ICs.
The AT28C010E-15PU belongs to Atmel's parallel EEPROM product line, designed specifically for reliable, pin-compatible replacement of UV-erasable EPROMs and early flash memory in industrial and telecom systems requiring deterministic write timing and high data integrity.
FAQ
What is the endurance rating of the AT28C010E-15PU?
The AT28C010E-15PU is rated for 100,000 write/erase cycles - confirmed by Atmel's characterization and specified in the "Options" section of the ordering information table. This high-endurance variant (denoted by the 'E' suffix) exceeds the standard AT28C010's 10K-cycle rating and is validated for applications requiring frequent field updates, such as firmware patching or dynamic calibration storage. Each cycle represents a full page or byte write operation to any location within the 128K-word array.
Does the AT28C010E-15PU support both hardware and software write protection?
Yes, the AT28C010E-15PU implements dual-layer write protection. Hardware protection includes VCC sensing (write inhibited below 3.8V), 5 ms power-on delay, noise filtering on CE/WE inputs, and standard control-line gating (CE high, OE low, or WE high blocks writes). Software Data Protection (SDP) is enabled via a three-byte unlock sequence written to specific addresses (5555H, 2AAAH, then 5555H); once activated, SDP remains active across power cycles until explicitly disabled using a separate five-byte disable sequence.
How is write completion detected on the AT28C010E-15PU?
Write completion on the AT28C010E-15PU can be detected using two independent, pin-level methods: DATA polling on I/O7 (which returns the complement of the last written byte until completion, then true data) and the toggle-bit method on I/O6 (which toggles between 0 and 1 during programming and stabilizes upon completion). Both methods are usable at any time during the write cycle and require no external timing components - enabling efficient polling loops or interrupt-driven status checking in resource-constrained systems.
What package type and lead count does the AT28C010E-15PU use?
The AT28C010E-15PU uses a 32-lead Plastic Dual Inline Package (PDIP), 0.600" wide (designated 32P6 in Atmel's ordering guide), with through-hole mounting and JEDEC-standard pinout. Pin 1 is A0; pin 16 is GND; pin 32 is VCC; I/O0–I/O7 occupy pins 17–24; and control signals CE, OE, and WE are assigned to pins 20, 22, and 23 respectively. This package is RoHS-compliant and Pb/halide-free per the 'U' suffix in the part number.
Can the AT28C010E-15PU be used as a direct replacement for older EPROMs like the 27C010?
Yes, the AT28C010E-15PU is functionally and pin-compatible with the 27C010 EPROM in read mode and shares the same JEDEC-standard 32-pin DIP footprint and byte-wide addressing. Unlike UV-erasable EPROMs, it supports in-system electrical erasure and programming without socket removal. However, write operations require proper CE/OE/WE sequencing and write-protection management - unlike EPROMs, which only require VPP during programming. No PCB changes are needed for read-only replacement; write-capable integration requires verifying timing and control logic per the AC write characteristics table.
AT28C010E-15PU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 32-DIP (0.600", 15.24mm)
- 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:
- 150 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 32-PDIP
AT28C010E-15PU FAQ
1.How can I place an order for AT28C010E-15PU through Aetrix?
Please submit a Request for Quotation (RFQ) for AT28C010E-15PU 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-15PU reliable?
The price and inventory of AT28C010E-15PU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT28C010E-15PU is usually 5 days.
3.What payment methods are accepted for AT28C010E-15PU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT28C010E-15PU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT28C010E-15PU?
AT28C010E-15PU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT28C010E-15PU 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-15PU?
For technical support, including AT28C010E-15PU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT28C010E-15PU requirements.
6.How does Aetrix verify that AT28C010E-15PU is sourced from the original manufacturer or authorized distributors?
All AT28C010E-15PU 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-15PU meets industry standards.
7.What is the process for return or replacement of AT28C010E-15PU?
All AT28C010E-15PU units undergo pre-shipment inspection (PSI). If there is an issue with AT28C010E-15PU, 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-15PU part is unused and in its original packaging.
Return procedure for AT28C010E-15PU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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