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Microchip Technology AT28C010-15PI
- Part No.:
- AT28C010-15PI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-DIP (0.600", 15.24mm)
- Datasheet:
-
AT28C010-15PI.pdf
- Description:
- IC EEPROM 1MBIT PARALLEL 32DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,721
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Product details
Overview
AT28C010-15PI 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 CMOS/TTL-compatible I/O. It operates on single 5V ±10% supply and supports hardware/software data protection for industrial embedded systems requiring nonvolatile storage with field-upgradable firmware.
For engineers reviewing the AT28C010-15PI datasheet, AT28C010-15PI pinout, AT28C010-15PI application, or AT28C010-15PI equivalent, key selection considerations include its 128-byte page write capability, DATA polling and toggle-bit write completion detection, VCC-sense write inhibit, and industrial temperature range (-40°C to +85°C) in 32-lead PDIP package.
Technical Context
The AT28C010-15PI implements a paged architecture with internal 128-byte address/data latches and an autonomous control timer for self-timed writes. Its read interface mimics SRAM behavior-requiring only CE and OE low with WE high-eliminating external timing logic.
Write operations support both byte and page modes: page writes accept up to 128 bytes within 150 µs per byte (tBLC), constrained to same-page addressing (A7–A16 fixed); DATA polling on I/O7 and toggle-bit monitoring on I/O6 provide deterministic end-of-write detection without busy-wait loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (131,072 × 8), enabling firmware storage for mid-complexity microcontrollers |
| Read Access Time | 150 ns max - compatible with 6-MHz Z80 or 8-MHz 8051 bus timing |
| Page Write Cycle | 10 ms max - allows rapid field updates of configuration blocks or calibration tables |
| Endurance | 10,000 write/erase cycles - sufficient for infrequent parameter logging or boot loader updates |
| Data Retention | 10 years at 85°C - validated for industrial equipment deployed in uncontrolled thermal environments |
| Supply Voltage | 5V ±10% - eliminates need for dedicated EEPROM voltage regulators in legacy 5V systems |
| Operating Temperature | -40°C to +85°C - qualified for industrial control panels and automotive body modules |
Pinout & Package
AT28C010-15PI is supplied in a 32-lead plastic dual inline package (PDIP), 0.600" wide, with JEDEC MS-011 compliant footprint and through-hole mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus supporting full 128K-word addressing; A7–A16 define page boundaries for write operations |
| I/O0–I/O7 | Bidirectional Data Bus | CMOS/TTL-compatible 8-bit data path; I/O7 used for DATA polling, I/O6 for toggle-bit status |
| CE | Chip Enable | Active-low chip select; must be low for read/write; high disables outputs and enables standby mode |
| OE | Output Enable | Active-low output control; used with CE to prevent bus contention during shared-memory access |
| WE | Write Enable | Active-low write strobe; falling edge latches address/data; controls byte vs. page write initiation |
| VCC, GND | Power Supply | Single 5V supply with <200 µA CMOS standby current - reduces system power budget in sleep modes |
| NC | No Connect | Pins 1, 32 (PDIP) are unconnected; no routing or grounding required |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Data Protection | VCC sense circuitry inhibits writes below 3.8V and enforces 5 ms power-on delay - prevents corruption during brown-out conditions |
| Software Data Protection (SDP) | User-configurable 3-byte unlock sequence (AAh/55h/A0h) enables/disables write protection - secures critical bootloader sectors |
| Page Write Architecture | Internal 128-byte latch allows burst loading of configuration data without CPU intervention between bytes - improves host firmware update efficiency |
| Write Completion Detection | Dual methods: DATA polling (I/O7 complement → true data) and toggle-bit (I/O6 toggling → stable) - eliminates need for fixed delays in driver code |
| Device Identification Area | 128-byte reserved region (1FF80h–1FFFFh) accessible via 12V on A9 - supports unique unit serialization and traceability |
Applications
| Industrial PLC Configuration Storage | Legacy PC BIOS Firmware Backup |
|---|---|
Use Scenario: Storing ladder logic parameters and I/O mapping tables in programmable logic controllers operating in factory-floor environments with wide temperature swings. IC Role / Device Role / Timing Role: Nonvolatile configuration memory accessed via parallel bus during controller boot and runtime reconfiguration. Use Value: 10-year data retention at 85°C ensures parameter integrity across maintenance cycles without battery backup. | Use Scenario: Holding fallback BIOS images and CMOS setup data in ISA-bus-based industrial PCs where flash memory was not yet standard. IC Role / Device Role / Timing Role: Byte-addressable shadow ROM mapped into CPU address space, read like SRAM with CE/OE control. Use Value: 150 ns read access meets 8-MHz 80286 bus timing requirements without wait states. |
| Medical Device Calibration Data | Telecom Line Card Bootloader Storage |
Use Scenario: Retaining sensor calibration coefficients and safety-critical operational limits in portable diagnostic equipment subject to periodic recalibration. IC Role / Device Role / Timing Role: Secure, write-protected EEPROM partition accessed by microcontroller during power-up self-test. Use Value: Hardware VCC-sense and software SDP prevent accidental overwrites during field service or power interruptions. | Use Scenario: Storing field-upgradable bootloader code in telecom line cards requiring hot-swap capability and zero-downtime firmware patches. IC Role / Device Role / Timing Role: Paged write target for in-system programming via JTAG or serial interface, using internal 128-byte buffer to minimize host CPU overhead. Use Value: 10 ms page write time enables sub-second bootloader updates without disrupting line card traffic forwarding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar paged parallel EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT28C256-15PI | 256 Kbit (32K × 8), same 150 ns access, 10 ms page write, but smaller density and no device ID area | Suitable for simpler systems with lower firmware footprint; lacks 128-byte identification block for serialization | Select when memory requirement is ≤32K words and cost sensitivity outweighs long-term traceability needs |
| MX28F1000PC-15 | Intel-compatible 1 Mbit flash, 150 ns read, but requires 12V VPP for programming and lacks true byte-write capability | Requires external high-voltage generator and block-erase discipline; incompatible with AT28C010-15PI's SRAM-like write protocol | Choose only if migrating from Intel 28F-series and accepting added board complexity for flash density scaling |
Compared with AT28C010-15PI, AT28C256-15PI offers lower cost and identical timing but reduced capacity and no device ID; MX28F1000PC-15 provides flash endurance advantages but mandates 12V programming and erases in 64K blocks-making it unsuitable for partial updates or field calibration storage.
Availability
AT28C010-15PI is available at Aetrix Electronics and suitable for industrial control systems, legacy computing platforms, medical instrumentation, and telecom infrastructure requiring stable component supply with long-lifecycle support.
Supply support for AT28C010-15PI 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) designed high-reliability nonvolatile memory and microcontroller solutions for industrial, automotive, and communications markets before its 2016 acquisition.
The AT28C010-15PI belongs to Atmel's parallel EEPROM product line, engineered specifically for drop-in replacement of EPROM and battery-backed SRAM in 5V systems requiring field-programmable, byte-modifiable nonvolatile storage.
FAQ
What is the maximum page write size supported by the AT28C010-15PI?
The AT28C010-15PI supports page write operations of 1 to 128 bytes per internal programming cycle. All bytes must reside on the same page, defined by address bits A7–A16. The internal 128-byte latch enables burst loading without CPU intervention between bytes, and each subsequent byte must be written within 150 µs (tBLC) of the prior one to maintain page mode operation. This capability is intrinsic to the AT28C010-15PI architecture and documented in its AC characteristics table.
Does the AT28C010-15PI require a 12V programming voltage?
No, the AT28C010-15PI operates exclusively from a single 5V ±10% supply for both read and write functions. Unlike older EPROMs or some flash devices, it does not require 12V VPP. The only exception is the optional device identification area (1FF80h–1FFFFh), which uses 12V on A9-but this is strictly for writing the 128-byte ID block and is not needed for normal AT28C010-15PI operation.
How does hardware data protection work on the AT28C010-15PI?
The AT28C010-15PI incorporates four hardware safeguards: (1) VCC sense circuitry disables writes if supply drops below ~3.8V; (2) a 5 ms internal power-on delay prevents writes until VCC stabilizes; (3) write inhibition occurs if CE is high, OE is low, or WE is high; and (4) a 15 ns noise filter rejects spurious pulses on CE/WE. These mechanisms operate autonomously and are active in every AT28C010-15PI unit regardless of software configuration.
Can the AT28C010-15PI be used as a direct replacement for a 27C512 EPROM?
No-the AT28C010-15PI is not a pin-compatible or functional replacement for the 27C512 EPROM. While both are 5V 64K × 8 devices, the 27C512 is UV-erasable and requires 21V programming, whereas the AT28C010-15PI is electrically erasable with different timing, control signals (WE instead of PGM), and no UV window. Direct substitution would require PCB redesign and firmware changes to accommodate the AT28C010-15PI's write protocols and protection features.
What package type is used for the AT28C010-15PI?
The AT28C010-15PI is packaged in a 32-lead plastic dual inline package (PDIP), designated as 32P6 in Atmel's ordering nomenclature. It measures 0.600" wide with standard through-hole spacing, conforms to JEDEC MS-011, and is distinct from the PLCC (32J) and TSOP (32T) variants of the same AT28C010-15PI family.
AT28C010-15PI 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
AT28C010-15PI FAQ
1.How can I place an order for AT28C010-15PI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT28C010-15PI 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 AT28C010-15PI reliable?
The price and inventory of AT28C010-15PI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT28C010-15PI is usually 5 days.
3.What payment methods are accepted for AT28C010-15PI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT28C010-15PI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT28C010-15PI?
AT28C010-15PI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT28C010-15PI 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 AT28C010-15PI?
For technical support, including AT28C010-15PI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT28C010-15PI requirements.
6.How does Aetrix verify that AT28C010-15PI is sourced from the original manufacturer or authorized distributors?
All AT28C010-15PI 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 AT28C010-15PI meets industry standards.
7.What is the process for return or replacement of AT28C010-15PI?
All AT28C010-15PI units undergo pre-shipment inspection (PSI). If there is an issue with AT28C010-15PI, 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 AT28C010-15PI part is unused and in its original packaging.
Return procedure for AT28C010-15PI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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