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Microchip Technology AT27C010L-12JI
- Part No.:
- AT27C010L-12JI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-LCC (J-Lead)
- Datasheet:
-
AT27C010L-12JI.pdf
- Description:
- IC EPROM 1MBIT PARALLEL 32PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:4,359
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Product details
Overview
AT27C010L-12JI from Atmel is a 1-Mbit (128K × 8) one-time programmable EPROM optimized for low-power industrial applications, featuring 120 ns read access time, 25 mA active current at 5 MHz, and 100 µA max standby current. It operates from a single 5V ±10% supply, supports JEDEC-standard 32-lead PLCC packaging, and integrates Rapid™ programming (100 µs/byte) for firmware storage in microprocessor-based control systems.
For engineers reviewing the AT27C010L-12JI datasheet, AT27C010L-12JI pinout, AT27C010L-12JI application, or AT27C010L-12JI equivalent, key selection criteria include industrial temperature range (-40°C to +85°C), CMOS/TTL compatibility, VPP-programming voltage requirements, and OTP reliability for embedded boot code retention.
Technical Context
The AT27C010L-12JI implements a standard OTP EPROM architecture with dual-line control (CE/OE) enabling bus contention prevention in shared-memory systems. Its address space spans A0–A16 (128K locations), outputs O0–O7 are TTL/CMOS-compatible, and PGM strobe enables byte-level programming under 13.0V VPP.
It uses high-reliability CMOS technology with 2000V ESD protection and 200 mA latchup immunity. The integrated product identification code-accessed via A9=12.0V and A0 toggling-allows automated programming equipment to verify manufacturer (0x1E) and device type (0x05) codes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1,048,576-bit (128K × 8) OTP EPROM - provides non-volatile firmware storage without battery backup |
| Read Access Time | 120 ns - eliminates WAIT states in 8/16-bit microprocessor systems running ≤8.3 MHz |
| VCC Supply | 5V ±10% - compatible with standard logic rails; no auxiliary voltage required for read mode |
| Active Current | 25 mA max at 5 MHz - enables low-heat operation in dense PCB layouts |
| Standby Current | 100 µA max - reduces system power budget during idle cycles |
| Programming Voltage | VPP = 13.0V ±0.25V - requires dedicated programming circuitry; not used in normal read operation |
| Operating Temperature | -40°C to +85°C - qualified for industrial control, motor drives, and instrumentation environments |
Pinout & Package
AT27C010L-12JI is supplied in a 32-lead Plastic J-Leaded Chip Carrier (PLCC) package per JEDEC MS-016 AE, with 1.27 mm pitch and 18.5 mm × 18.5 mm body size. Pin 1 is marked by an index notch on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus supporting full 128K-byte memory map; driven by CPU or address decoder |
| O0–O7 | Data Outputs | Bi-directional data bus interface; high-impedance when CE or OE inactive |
| CE | Chip Enable | Active-low global enable; must be asserted before OE to avoid bus contention |
| OE | Output Enable | Active-low output gate; controls data bus drive timing independent of address setup |
| PGM | Program Strobe | Active-low pulse input (100 µs width) that initiates byte programming when VPP = 13.0V |
| VPP | Programming Voltage | 13.0V supply input only during programming; must be applied after VCC and removed before VCC |
| VCC | Power Supply | +5V main supply; powers logic and output drivers during read and program modes |
| GND | Ground | Reference return path for all signals and supplies; requires local 0.1 µF ceramic decoupling |
| NC | No Connect | Unbonded pin (Pin 14 in PLCC); must remain unconnected on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Rapid™ Programming Algorithm | 100 µs/byte typical programming time - cuts firmware update duration vs. legacy EPROMs requiring >10 ms/byte |
| 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 | Separate CE and OE inputs - allows flexible memory mapping and prevents data bus conflicts during partial decode |
| High-Reliability Process | 2000V HBM ESD rating and 200 mA latchup immunity - ensures robustness in factory automation and field-deployed equipment |
| Industrial Temperature Range | -40°C to +85°C operation - validated across full range for consistent timing and data retention |
Applications
| Industrial PLC Firmware Storage | Legacy Embedded Boot ROM |
|---|---|
Use Scenario: Storing ladder logic and I/O configuration in programmable logic controllers deployed in factory environments with ambient temperatures up to 85°C. IC Role / Device Role / Timing Role: Non-volatile boot memory mapped to CPU address space; accessed during power-on reset and runtime firmware updates. Use Value: 120 ns access time ensures zero-wait-state execution of real-time control loops; OTP security prevents unauthorized firmware modification. | Use Scenario: Providing immutable startup code for 8051- or Z80-based medical instruments where flash reprogramming risk is unacceptable. IC Role / Device Role / Timing Role: Primary read-only instruction memory; connected directly to CPU address/data buses with CE/OE decoding. Use Value: 25 mA active current minimizes thermal load in sealed enclosures; 100 µA standby current extends battery-backed RTC uptime. |
| Automated Test Equipment (ATE) Calibration Data | Avionics Maintenance Terminal BIOS |
Use Scenario: Holding calibration coefficients and sensor linearization tables in benchtop test systems requiring long-term data integrity. IC Role / Device Role / Timing Role: Static data repository accessed via memory-mapped I/O; updated only during factory calibration. Use Value: OTP architecture guarantees data immutability between calibrations; 2000V ESD protection withstands handling in ESD-safe labs. | Use Scenario: Storing diagnostic BIOS and hardware initialization routines in portable avionics ground support terminals operating across wide temperature swings. IC Role / Device Role / Timing Role: Boot ROM executing immediately after power-up; interfaced to 16-bit bus with wait-state-free timing. Use Value: Industrial-grade -40°C to +85°C qualification ensures reliable boot at airport tarmacs; PLCC package enables socketed field replacement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar OTP EPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT27C010-12JI | Higher active current (35 mA vs. 25 mA); same 120 ns access, package, and pinout | Suitable where power budget permits higher active draw for identical timing performance | Select AT27C010-12JI only if system power delivery supports +40% active current without thermal derating |
| AM27C010-12JC | Same 1-Mbit OTP EPROM spec, but commercial temp range (0°C to 70°C); PLCC package | Limited to climate-controlled lab or office equipment; not rated for industrial ambient extremes | Choose AM27C010-12JC only for cost-sensitive non-industrial designs where temperature margin is guaranteed |
Compared with AT27C010L-12JI, the AT27C010-12JI offers identical speed and footprint but increases active power consumption by 40%, while the AM27C010-12JC sacrifices industrial temperature qualification for lower cost-making AT27C010L-12JI the optimal choice for thermally demanding, power-constrained embedded systems.
Availability
AT27C010L-12JI is available at Aetrix Electronics and suitable for industrial PLCs, legacy embedded boot systems, and automated test equipment requiring stable component supply, long-lifecycle support, and verified OTP reliability.
Supply support for AT27C010L-12JI 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 was a U.S.-based semiconductor company specializing in microcontrollers, non-volatile memory, and programmable logic devices before its acquisition by Microchip Technology in 2016.
The AT27C010L series belongs to Atmel's OTP EPROM product line, designed specifically for secure, low-power, industrial-grade firmware and calibration data storage in systems where flash reprogrammability introduces unacceptable risk.
FAQ
What is the maximum operating temperature range for the AT27C010L-12JI?
The AT27C010L-12JI is rated for industrial operation from -40°C to +85°C. This range is validated across all electrical parameters including read access time (120 ns), active current (25 mA max), and standby current (100 µA max). Operation outside this range may result in timing violations or data retention failure. The AT27C010L-12JI achieves this specification using Atmel's high-reliability CMOS process with enhanced oxide integrity and junction isolation.
Does the AT27C010L-12JI require a separate programming voltage during normal read operation?
No, the AT27C010L-12JI requires only a single 5V ±10% supply (VCC) for normal read operation. The VPP pin (13.0V) is used exclusively during programming and must be disconnected or held at 5V during read mode. Applying 13V to VPP while reading will damage the device. The AT27C010L-12JI datasheet explicitly states VPP must be applied after VCC and removed before VCC during programming sequences.
How does the Rapid™ Programming Algorithm reduce programming time for the AT27C010L-12JI?
The Rapid™ Programming Algorithm reduces AT27C010L-12JI programming time to 100 µs per byte by using a precise 100 µs PGM pulse width and adaptive verification-reapplying pulses only to bytes that fail initial verification, up to 10 times. This contrasts with fixed-pulse algorithms requiring >10 ms/byte. The AT27C010L-12JI's internal logic manages pulse sequencing and verification autonomously, eliminating external timing control overhead.
Can the AT27C010L-12JI be used as a direct replacement for the AT27C010-12JI in an existing design?
Yes, the AT27C010L-12JI is pin-compatible and functionally identical to the AT27C010-12JI except for reduced active current (25 mA vs. 35 mA). All timing parameters, pinout, programming algorithm, and voltage requirements match exactly. Substituting AT27C010L-12JI lowers system power consumption without requiring PCB or firmware changes-making it a drop-in upgrade for thermal- or battery-sensitive applications.
What decoupling capacitance is required for stable operation of the AT27C010L-12JI?
The AT27C010L-12JI requires a minimum 0.1 µF high-frequency ceramic capacitor between VCC and GND, placed as close as possible to the device pins. For systems with multiple AT27C010L-12JI devices or high-current digital loads, a 4.7 µF bulk electrolytic capacitor should also be added near the power entry point. These values are specified in the "System Considerations" section of the AT27C010L-12JI datasheet to suppress transient excursions during CE switching.
AT27C010L-12JI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 32-LCC (J-Lead)
- 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:
- 120 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-PLCC (13.97x11.43)
AT27C010L-12JI FAQ
1.How can I place an order for AT27C010L-12JI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT27C010L-12JI 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-12JI reliable?
The price and inventory of AT27C010L-12JI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT27C010L-12JI is usually 5 days.
3.What payment methods are accepted for AT27C010L-12JI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT27C010L-12JI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT27C010L-12JI?
AT27C010L-12JI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT27C010L-12JI 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-12JI?
For technical support, including AT27C010L-12JI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT27C010L-12JI requirements.
6.How does Aetrix verify that AT27C010L-12JI is sourced from the original manufacturer or authorized distributors?
All AT27C010L-12JI 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-12JI meets industry standards.
7.What is the process for return or replacement of AT27C010L-12JI?
All AT27C010L-12JI units undergo pre-shipment inspection (PSI). If there is an issue with AT27C010L-12JI, 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-12JI part is unused and in its original packaging.
Return procedure for AT27C010L-12JI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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