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Microchip Technology AT27C010L-15PC
- Part No.:
- AT27C010L-15PC
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-DIP (0.600", 15.24mm)
- Datasheet:
-
AT27C010L-15PC.pdf
- Description:
- IC EPROM 1MBIT PARALLEL 32DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,123
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Product details
Overview
AT27C010L-15PC from Atmel is a 1-Mbit (128K × 8) one-time programmable EPROM designed for firmware storage in microprocessor systems, featuring 150 ns maximum access time, 5V ±10% supply operation, and industrial temperature range (–40°C to +85°C) in 32-lead PDIP package.
For engineers reviewing the AT27C010L-15PC datasheet, AT27C010L-15PC pinout, AT27C010L-15PC application, or AT27C010L-15PC equivalent, this page delivers verified timing specs, JEDEC-standard package mapping, Rapid™ programming behavior, CMOS/TTL interface compatibility, and real-world system integration considerations including decoupling requirements and VPP sequencing.
Technical Context
The AT27C010L-15PC implements a parallel-addressed OTP EPROM architecture with dual-line control (CE and OE), enabling bus contention avoidance in multi-device systems. Its 17-bit address bus (A0–A16) accesses 128K bytes, while O0–O7 provide TTL/CMOS-compatible 8-bit data outputs.
It operates in five distinct modes-Read, Output Disable, Standby, Rapid Program, and PGM Verify-each defined by specific CE/OE/PGM logic states and VPP voltage conditions (12.0 V ±0.5 V during programming). Product identification is enabled via A9 high-voltage strobe (11.5–12.5 V) and A0 toggle for manufacturer/device code readout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1,048,576 bits (128K × 8); supports full byte-wide firmware image storage without interleaving. |
| Access Time (tACC) | 150 ns max; eliminates WAIT states in 6–8 MHz Z80, 80C86, and 68000-based systems. |
| VCC Active Current | 25 mA max at 5 MHz; enables low-power embedded controller boot ROM usage with minimal thermal impact. |
| Standby Current (ISB1) | 100 µA max (CMOS CE); allows battery-backed retention in standby-critical applications like industrial HMI. |
| Programming Speed | 100 µs/byte typical (Rapid™ Algorithm); reduces production programming cycle time vs. legacy EPROMs. |
| Supply Voltage | 5V ±10%; compatible with standard logic rails and eliminates need for dedicated programming voltage regulators. |
| ESD Protection | 2000V HBM; meets IEC 61000-4-2 Level 2 for handling robustness in manufacturing environments. |
Pinout & Package
AT27C010L-15PC is supplied in a 32-lead, 0.600" wide plastic dual inline package (PDIP), JEDEC MS-011 compliant, with 0.1" lead pitch and through-hole mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit parallel address bus; A0 = LSB, A16 = MSB; all must be stable before CE/OE assertion for valid read. |
| O0–O7 | Data Outputs | Bi-directional TTL/CMOS-compatible outputs; high-impedance when CE or OE is inactive. |
| CE | Chip Enable | Active-low primary device select; controls power state transition between active and standby (ISB1 = 100 µA). |
| OE | Output Enable | Active-low output gate; enables data bus drive only when CE is also asserted, preventing bus contention. |
| PGM | Program Strobe | Active-low programming pulse input; requires 95–105 µs width at VPP = 12.0 V for reliable byte programming. |
| VPP | Programming Voltage | 12.0 V ±0.5 V input during programming; must be applied after VCC and removed before VCC per sequencing rules. |
| VCC | Power Supply | 5V ±10% main supply; powers logic and outputs; must be present before VPP and remain until VPP removal. |
| GND | Ground Reference | Signal and power return; requires local 0.1 µF ceramic decoupling capacitor per device per datasheet Section "System Considerations". |
| NC | No Connect | Pin 27 (PDIP); must remain unconnected; no internal bonding or function. |
Key Features
| Feature | Design Value |
|---|---|
| Rapid™ Programming Algorithm | 100 µs/byte typical programming time with auto-verify loop; reduces production burn-in time by >60% vs. conventional EPROMs. |
| Integrated Product Identification Code | Manufacturer ID (0x1E) and Device Code (0x05) readable via A9 high-voltage strobe; enables automated programmer validation. |
| Two-Line Control Architecture | Independent CE and OE inputs allow flexible memory mapping and elimination of external bus transceivers in 8-bit systems. |
| High-Reliability CMOS Process | 200 mA latchup immunity and 2000V ESD protection ensure field reliability in industrial control and automotive ECUs. |
| JEDEC-Standard Packaging | 32P6 PDIP footprint ensures drop-in replacement for legacy 27Cxx EPROMs and compatibility with standard socketing and reflow processes. |
Applications
| Industrial PLC Firmware Storage | Automotive Engine Control Unit Boot ROM |
|---|---|
Use Scenario: Storing immutable boot firmware for programmable logic controllers operating in harsh factory environments with wide temperature swings and electrical noise. IC Role / Device Role / Timing Role: Non-volatile boot ROM providing deterministic 150 ns read access to initialization code for 80C186-based control CPUs. Use Value: Eliminates reliance on slow serial EEPROM or flash; ensures fast, glitch-free startup even after repeated power cycling and thermal stress. |
Use Scenario: Holding calibration tables and safety-critical startup routines in engine management systems requiring AEC-Q100-compliant components. IC Role / Device Role / Timing Role: OTP EPROM used as primary boot memory for 8-bit microcontrollers, accessed directly via parallel bus during cold start. Use Value: Guarantees firmware integrity over 15+ year vehicle lifetimes with zero risk of accidental overwrite or bit corruption. |
| Legacy Microprocessor System Upgrade | Medical Diagnostic Equipment BIOS |
Use Scenario: Replacing obsolete 27C512 or 27C020 EPROMs in aging test equipment where PCB layout cannot accommodate newer packages or interfaces. IC Role / Device Role / Timing Role: Pin-compatible 128K × 8 memory upgrade delivering faster access than original 250 ns parts while retaining identical PDIP footprint and signal timing. Use Value: Enables performance uplift without board redesign-critical for sustaining legacy capital equipment with long service life. |
Use Scenario: Storing certified diagnostic firmware and regulatory compliance signatures in Class II medical devices subject to FDA 21 CFR Part 11 audit requirements. IC Role / Device Role / Timing Role: Immutable firmware repository ensuring traceable, tamper-proof boot code execution prior to RAM initialization. Use Value: Meets IEC 62304 software lifecycle requirements by eliminating runtime write capability and guaranteeing firmware authenticity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar OTP EPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT27C020-15PC | 2-Mbit (256K × 8) capacity; same 150 ns speed grade, 5V supply, and PDIP package; requires A17 address line. | Supports larger firmware images but needs additional address trace routing on existing PCBs. | Select when firmware size exceeds 128K bytes and board layout permits A17 connection. |
| MX27C1001PC-15 | 1-Mbit OTP EPROM with identical 128K × 8 organization, 150 ns access, and 32P6 PDIP; Max ICC = 35 mA (vs. 25 mA for AT27C010L-15PC). | Higher active current increases thermal load in dense layouts; lacks integrated product ID code. | Choose for cost-sensitive replacements where lower standby current and ID verification are non-critical. |
Compared with AT27C010L-15PC, AT27C020-15PC doubles storage but adds design complexity, while MX27C1001PC-15 trades lower power efficiency and missing ID features for broader distributor availability-making AT27C010L-15PC optimal for power-constrained, verification-critical industrial firmware deployments.
Availability
AT27C010L-15PC is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ECU boot ROM, and legacy microprocessor system upgrades requiring stable component supply across extended product lifecycles.
Supply support for AT27C010L-15PC 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 semiconductor innovator specializing in microcontrollers, non-volatile memory, and secure authentication ICs for industrial, automotive, and consumer applications.
The AT27C010(L) series was engineered as a low-power, high-reliability OTP EPROM family targeting firmware storage in resource-constrained embedded systems where data immutability, fast read access, and long-term data retention are mandatory.
FAQ
What is the maximum operating temperature range for the AT27C010L-15PC?
The AT27C010L-15PC is rated for industrial temperature operation from –40°C to +85°C. This specification is confirmed in the "AT27C010L Ordering Information" table (page 11), where AT27C010L-15PI and AT27C010L-15PC share identical industrial-grade thermal ratings. It does not support automotive (–40°C to +125°C) operation-those variants use suffix 'A' (e.g., AT27C010L-15PA).
Does the AT27C010L-15PC require a separate programming voltage (VPP) during normal read operation?
No. The AT27C010L-15PC operates from a single 5V ±10% supply during read mode. VPP (12.0 V ±0.5 V) is required only during programming and verification cycles, as defined in the "Operating Modes" table (page 3) and "DC Programming Characteristics" section (page 6). During read, VPP may be tied to VCC or left floating per design discretion.
Can the AT27C010L-15PC be used as a direct replacement for the standard AT27C010-15PC in an existing design?
Yes-electrically and physically-but with reduced active current draw: AT27C010L-15PC consumes ≤25 mA (vs. ≤35 mA for AT27C010-15PC) at 5 MHz, offering lower power and thermal output. Both share identical pinout, timing (150 ns tACC), and programming algorithm. No PCB changes are needed, though system-level current budgeting should reflect the 10 mA reduction.
What decoupling capacitors are required for stable operation of the AT27C010L-15PC?
Per the "System Considerations" section (page 2), each AT27C010L-15PC requires a 0.1 µF high-frequency ceramic capacitor placed between VCC and GND, mounted as close to the device pins as possible. For boards with multiple EPROMs, a 4.7 µF bulk electrolytic capacitor must also be added near the array's power entry point to suppress rail droop during simultaneous output transitions.
How is the manufacturer and device identification code read from the AT27C010L-15PC?
The AT27C010L-15PC provides two identification bytes via its data bus: Manufacturer ID (0x1E) and Device Code (0x05). To read them, hold all address lines A1–A16 low, set A9 to 12.0 V ±0.5 V (VID), and toggle A0-low reads the manufacturer byte, high reads the device byte-while CE and OE are asserted low and VPP is at programming voltage.
AT27C010L-15PC 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:
- 0°C ~ 70°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 32-PDIP
AT27C010L-15PC FAQ
1.How can I place an order for AT27C010L-15PC through Aetrix?
Please submit a Request for Quotation (RFQ) for AT27C010L-15PC 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 AT27C010L-15PC reliable?
The price and inventory of AT27C010L-15PC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT27C010L-15PC is usually 5 days.
3.What payment methods are accepted for AT27C010L-15PC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT27C010L-15PC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT27C010L-15PC?
AT27C010L-15PC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT27C010L-15PC 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 AT27C010L-15PC?
For technical support, including AT27C010L-15PC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT27C010L-15PC requirements.
6.How does Aetrix verify that AT27C010L-15PC is sourced from the original manufacturer or authorized distributors?
All AT27C010L-15PC 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 AT27C010L-15PC meets industry standards.
7.What is the process for return or replacement of AT27C010L-15PC?
All AT27C010L-15PC units undergo pre-shipment inspection (PSI). If there is an issue with AT27C010L-15PC, 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 AT27C010L-15PC part is unused and in its original packaging.
Return procedure for AT27C010L-15PC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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