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Microchip Technology AT27C010-15PI
- Part No.:
- AT27C010-15PI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-DIP (0.600", 15.24mm)
- Datasheet:
-
AT27C010-15PI.pdf
- Description:
- IC EPROM 1MBIT PARALLEL 32DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,142
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Product details
Overview
AT27C010-15PI from Atmel is a 1-Mbit (128K × 8) one-time programmable EPROM designed for firmware storage in microprocessor systems. It delivers 45 ns read access time, operates from a single 5V ±10% supply, and supports industrial temperature range (–40°C to +85°C) in a 32-lead PDIP package. Its dual-line control (CE/OE), CMOS/TTL compatibility, and Rapid™ programming (100 µs/byte) enable reliable boot code retention in embedded controllers.
For engineers reviewing the AT27C010-15PI datasheet, AT27C010-15PI pinout, AT27C010-15PI application, or AT27C010-15PI equivalent, key selection criteria include verified 45 ns tACC timing, 35 mA active current at 5 MHz, VPP = 12.0 V programming voltage, JEDEC-standard PDIP-32 mechanical footprint, and OTP reliability for unalterable firmware images.
Technical Context
The AT27C010-15PI implements a parallel-addressed OTP EPROM architecture with 17 address lines (A0–A16) and 8 bidirectional data outputs (O0–O7). It uses two independent chip-select logic paths-Chip Enable (CE) and Output Enable (OE)-to manage bus contention and support memory-mapped I/O in 8-bit microcontroller systems.
Programming requires VPP = 12.0 V ±0.5 V applied to pin 1, while read operation uses only VCC = 5 V. The device integrates an on-chip product identification code accessible via A9 high-voltage strobe (11.5–12.5 V) and A0 toggle, enabling automated programmer recognition and algorithm selection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1,048,576 bits (128K × 8); sufficient for full boot ROM or BIOS image in 8-bit MCU systems |
| Read Access Time | 45 ns max (tACC); eliminates WAIT states on 5 MHz Z80, 8051, or 68K-based designs |
| VCC Supply | 5 V ±10%; compatible with standard TTL/CMOS logic rails without regulation overhead |
| Active Current | 35 mA max at 5 MHz; defines power budget for memory subsystem in battery-backed or low-power industrial controllers |
| Standby Current | 100 µA max (ISB1); enables low-quiescent power hold mode during processor sleep cycles |
| Programming Voltage | VPP = 12.0 V ±0.5 V on pin 1; requires dedicated HV supply or charge-pump circuitry in programming hardware |
| ESD Protection | 2000 V HBM; ensures robustness during manual handling and board assembly |
Pinout & Package
AT27C010-15PI is supplied in a 32-lead, 0.600" wide plastic dual inline package (PDIP), per JEDEC MS-016 AE outline. Pin 1 is marked by a notch or dot; package height ≤ 0.220", body width 0.590", and lead pitch 0.100".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit parallel address bus; selects one of 131,072 bytes; A0 = LSB, A16 = MSB |
| O0–O7 | Data Outputs | 8-bit bidirectional data bus; outputs valid when CE = OE = low; high-impedance when disabled |
| CE | Chip Enable | Primary device select; must be low for read or program; controls VCC current draw into standby state |
| OE | Output Enable | Secondary output gate; allows shared bus operation without disabling entire chip |
| PGM | Program Strobe | Active-low pulse input; initiates byte programming when VPP = 12 V and address valid |
| VPP | Programming Voltage | 12 V supply pin; must be ramped after VCC and before PGM; critical for oxide breakdown during OTP write |
| VCC | Power Supply | +5 V supply; powers logic and output drivers; requires 0.1 µF ceramic decoupling adjacent to pin |
| GND | Ground | Signal and power reference; connects to system ground plane; decoupling capacitor ties here |
| NC | No Connect | Pin 28 (PDIP); electrically isolated; no PCB trace or solder required |
Key Features
| Feature | Design Value |
|---|---|
| Rapid™ Programming Algorithm | 100 µs/byte typical programming time; reduces production burn-in cycle duration by >90% vs. legacy EPROMs |
| Integrated Product ID Code | Manufacturer ID (0x1E) and Device Code (0x05) readable via A9/VH and A0 toggle; enables auto-detection in universal programmers |
| Two-Line Control Architecture | Independent CE and OE inputs allow flexible memory mapping and prevent bus contention in multi-peripheral systems |
| High-Reliability CMOS Process | 200 mA latchup immunity and 2000 V ESD protection ensure field reliability in industrial environments with noisy power rails |
| JEDEC-Standard Packaging | 32P6 PDIP footprint matches legacy 27C256/27C512 layouts; enables drop-in replacement in existing designs |
Applications
| Industrial PLC Firmware Storage | Legacy Microcontroller Boot ROM |
|---|---|
Use Scenario: Storing fixed ladder logic interpreter and I/O driver code in programmable logic controllers operating in factory-floor environments with wide temperature swings and electrical noise. IC Role / Device Role / Timing Role: Nonvolatile boot memory mapped to CPU address space; provides deterministic 45 ns instruction fetch latency to sustain real-time scan cycle timing. Use Value: Eliminates need for external wait-state generators or slower serial flash; ensures zero-latency execution of safety-critical startup routines. | Use Scenario: Holding immutable BIOS or monitor firmware in vintage 8-bit development systems (e.g., Z80-based SBCs) where field updates are unnecessary and security against corruption is paramount. IC Role / Device Role / Timing Role: Primary read-only code store accessed during power-on reset; synchronized to CPU clock via CE/OE handshaking. Use Value: Guarantees bit-exact firmware replication across production units; immune to accidental overwrite or radiation-induced bit flips. |
| Automotive Instrument Cluster Calibration Data | Medical Device Configuration ROM |
Use Scenario: Storing calibrated sensor offset tables and display lookup matrices in automotive dashboards certified for –40°C to +125°C operation. IC Role / Device Role / Timing Role: Static configuration memory read once at startup; accessed via 8-bit parallel bus under microcontroller control. Use Value: Meets AEC-Q100 stress requirements; OTP prevents unauthorized calibration tampering post-manufacture. | Use Scenario: Holding FDA-approved device initialization parameters and safety interlock logic in Class II medical equipment requiring immutable runtime configuration. IC Role / Device Role / Timing Role: Secure, non-modifiable parameter store; accessed during power-up self-test sequence prior to clinical operation. Use Value: Provides audit-trail integrity for regulatory compliance; no firmware update mechanism reduces attack surface. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar OTP EPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT27C020-15PI | 2-Mbit (256K × 8) capacity; identical 45 ns tACC, 5 V supply, and PDIP-32 package | Supports larger firmware images; requires address line A17 routing not needed for AT27C010-15PI | Select when future firmware growth headroom is required without changing PCB layout |
| AM27C010-15DC | Same 1-Mbit organization and 45 ns speed; manufactured by AMD; pinout identical but VPP tolerance differs (12.5 V max vs. 12.0 V) | Valid for second-source procurement; requires verification of programmer VPP compliance | Choose for supply chain diversification where Atmel sourcing is constrained |
Compared with AT27C010-15PI, AT27C020-15PI doubles storage without speed or interface penalty, while AM27C010-15DC offers direct form-fit-function substitution with minor VPP margin adjustment-both preserve the same industrial temperature rating and PDIP-32 footprint.
Availability
AT27C010-15PI is available at Aetrix Electronics and suitable for industrial PLCs, legacy microcontroller boot systems, automotive instrument clusters, and medical device configuration storage requiring stable component supply over extended production lifecycles.
Supply support for AT27C010-15PI 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) is a fabless semiconductor company specializing in microcontrollers, nonvolatile memory, and secure authentication ICs.
The AT27C010(L) series was engineered for cost-sensitive, high-reliability embedded systems needing immutable firmware storage with fast parallel access-targeting industrial control, automotive instrumentation, and legacy computing platforms.
FAQ
What is the maximum programming voltage required for AT27C010-15PI?
The AT27C010-15PI requires VPP = 12.0 V ±0.5 V applied to pin 1 during programming. This voltage must be stable and ramped after VCC is established. Exceeding 12.5 V risks oxide damage, while falling below 11.5 V may cause incomplete programming. The AT27C010-15PI datasheet specifies VID = 11.5–12.5 V for A9-based product ID access, confirming this operational window.
Does AT27C010-15PI support both CMOS and TTL logic levels?
Yes, AT27C010-15PI features CMOS and TTL compatible inputs and outputs. Input thresholds are VIL ≤ 0.8 V and VIH ≥ 2.0 V, while output drive meets VOH ≥ 2.4 V (IOH = –400 µA) and VOL ≤ 0.4 V (IOL = 2.1 mA). This allows direct interfacing with 5 V TTL microcontrollers like the 8051 or Z80 without level-shifting circuitry.
Can AT27C010-15PI be used in automotive applications?
The AT27C010-15PI is rated for industrial temperature range (–40°C to +85°C). While Atmel also offered automotive-grade variants (e.g., AT27C010-15PA), the -15PI suffix explicitly denotes industrial qualification. For AEC-Q100-compliant automotive use, AT27C010-15PA-not AT27C010-15PI-is the validated option with extended high-temperature operation up to +125°C.
What decoupling capacitors are required for stable AT27C010-15PI operation?
Each AT27C010-15PI requires a 0.1 µF high-frequency ceramic capacitor placed between VCC and GND, mounted as close as possible to pins 16 and 32. For systems with multiple EPROMs, a 4.7 µF bulk electrolytic capacitor should also connect VCC–GND near the power entry point. These values are specified in the AT27C010-15PI system considerations section to suppress transient excursions during CE switching.
How is the product identification code read from AT27C010-15PI?
The AT27C010-15PI integrated product ID is read by setting A9 = 12.0 V (VH), holding A1–A16 = VIL, and toggling A0 between VIL (for Manufacturer ID = 0x1E) and VIH (for Device Code = 0x05). Outputs O0–O7 reflect the selected byte while CE = OE = VIL. This feature enables automatic device recognition in programming tools and avoids manual part selection errors.
AT27C010-15PI 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:
- EPROM
- Technology:
- EPROM - OTP
- Memory Size:
- 1Mbit
- Memory Organization:
- 128K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- -
- 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
AT27C010-15PI FAQ
1.How can I place an order for AT27C010-15PI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT27C010-15PI 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 AT27C010-15PI reliable?
The price and inventory of AT27C010-15PI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT27C010-15PI is usually 5 days.
3.What payment methods are accepted for AT27C010-15PI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT27C010-15PI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT27C010-15PI?
AT27C010-15PI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT27C010-15PI 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 AT27C010-15PI?
For technical support, including AT27C010-15PI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT27C010-15PI requirements.
6.How does Aetrix verify that AT27C010-15PI is sourced from the original manufacturer or authorized distributors?
All AT27C010-15PI 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 AT27C010-15PI meets industry standards.
7.What is the process for return or replacement of AT27C010-15PI?
All AT27C010-15PI units undergo pre-shipment inspection (PSI). If there is an issue with AT27C010-15PI, 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 AT27C010-15PI part is unused and in its original packaging.
Return procedure for AT27C010-15PI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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