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Microchip Technology AT27C010-70JI
- Part No.:
- AT27C010-70JI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-LCC (J-Lead)
- Datasheet:
-
AT27C010-70JI.pdf
- Description:
- IC EPROM 1MBIT PARALLEL 32PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,198
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Product details
Overview
AT27C010-70JI from Atmel is a 1-Mbit (128K × 8) one-time programmable EPROM designed for nonvolatile 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 PLCC package. Used for boot code and configuration data in embedded controllers.
For engineers reviewing the AT27C010-70JI datasheet, AT27C010-70JI pinout, AT27C010-70JI application, or AT27C010-70JI equivalent, key selection criteria include read speed grade (70 ns), industrial temperature rating, PLCC packaging, OTP reliability, and compatibility with standard 5V bus interfaces.
Technical Context
The AT27C010-70JI implements a CMOS-based OTP EPROM architecture with dual-line control (CE/OE) enabling bus contention avoidance in multi-device systems. Its address space spans A0–A16 (128K locations), with bidirectional data I/O via O0–O7 and dedicated PGM/VPP pins for high-voltage programming.
It features Rapid™ programming at 100 µs/byte with integrated product identification (manufacturer code 0x1E, device code 0x05), 2000V ESD protection, and latchup immunity up to 200 mA. VPP = 13.0V ±0.25V is required during programming; VCC must be applied before and removed after VPP.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1,048,576-bit (128K × 8) OTP EPROM - stores full boot firmware or configuration tables without refresh or write endurance limits. |
| Read Access Time | 70 ns max - enables direct interface with 10–14 MHz microprocessors without WAIT states. |
| VCC Supply | 5V ±10% - compatible with standard TTL/CMOS logic rails; no auxiliary voltage regulators needed in read mode. |
| Active Current | 35 mA max at 5 MHz - defines power budget for system-level thermal and supply design under sustained read load. |
| Standby Current | 100 µA max - supports low-power sleep modes in battery-backed or energy-sensitive applications. |
| Operating Temperature | –40°C to +85°C - validated for industrial environments including factory automation and motor control systems. |
| Programming Voltage | VPP = 13.0V ±0.25V - requires external high-voltage source or programmer support; not used in normal operation. |
Pinout & Package
AT27C010-70JI is packaged in a 32-lead Plastic J-Leaded Chip Carrier (PLCC), JEDEC MS-016 AE compliant, with 1.27 mm pitch and 11.4 mm × 11.4 mm body size. Pin 1 marked by index notch; seating plane defined per JEDEC standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus accepting 0–131071; fully decoded internally to select one of 128K bytes. |
| O0–O7 | Data Outputs | 8-bit bidirectional data bus; outputs driven only when CE=VIL and OE=VIL; high-Z otherwise. |
| CE | Chip Enable | Primary device select; deassertion (VIH) places outputs in high-impedance state and reduces ICC to standby level. |
| OE | Output Enable | Secondary output gate; allows shared bus operation - CE selects device, OE controls output driver timing. |
| PGM | Program Strobe | Active-low pulse input (100 µs width) that initiates byte programming when VPP=13V and address valid. |
| VPP | Programming Voltage | 13.0V ±0.25V input required only during programming; must be sequenced after VCC and before removal. |
| NC | No Connect | Pin 14 (PLCC top view) is unconnected - must remain floating; no internal circuitry attached. |
Key Features
| Feature | Design Value |
|---|---|
| Rapid™ Programming Algorithm | 100 µs/byte typical programming time with auto-verify loop - reduces production programming cycle time by >5× vs. legacy EPROMs. |
| Integrated Product ID Code | Manufacturer ID (0x1E) and Device ID (0x05) readable via A9/VH and A0 toggle - enables automated programmer validation and BOM traceability. |
| Two-Line Control Architecture | Independent CE and OE inputs - permits flexible bus arbitration schemes, e.g., CE for chip select and OE for timing-critical output gating. |
| High-Reliability CMOS Process | 2000V HBM ESD rating and 200 mA latchup immunity - ensures robustness in handling, assembly, and field operation without external protection. |
| JEDEC-Standard Packaging | 32J PLCC footprint - supports drop-in replacement across Atmel's AT27C010 family and broad third-party socket/PCB compatibility. |
Applications
| Industrial PLC Firmware Storage | Legacy Microcontroller Boot ROM |
|---|---|
|
Use Scenario: Storing ladder logic firmware and I/O mapping tables in programmable logic controllers deployed in factory environments. IC Role / Device Role / Timing Role: Nonvolatile boot memory providing deterministic 70 ns read access to initialize CPU and peripherals at power-up. Use Value: Eliminates reliance on slow serial EEPROM or external flash; guarantees consistent startup timing across –40°C to +85°C operating range. |
Use Scenario: Hosting fixed startup code and interrupt vectors for 8-bit/16-bit microcontrollers (e.g., 8051, Z80, 68HC11) in legacy instrumentation. IC Role / Device Role / Timing Role: Read-only instruction memory mapped into upper address space; accessed via standard address/data bus cycles. Use Value: Provides pin-compatible, radiation-tolerant alternative to UV-erasable EPROMs with no quartz window or erasure step required. |
| Automotive Engine Control Calibration Data | Medical Device Configuration Memory |
|
Use Scenario: Holding engine calibration maps (fuel timing, spark advance) in ECU modules requiring long-term data retention without power. IC Role / Device Role / Timing Role: OTP storage element retaining critical tuning parameters across vehicle lifetime; programmed once during final test. Use Value: Ensures tamper-resistant, unalterable data integrity - immune to accidental overwrite or software corruption during field operation. |
Use Scenario: Storing FDA-mandated device configuration profiles (e.g., infusion pump delivery rates, alarm thresholds) in Class II medical electronics. IC Role / Device Role / Timing Role: Certified nonvolatile memory storing immutable safety-critical parameters; accessed during power-on self-test (POST). Use Value: Meets IEC 62304 requirements for fixed configuration storage with zero write-cycle wear-out risk and verified data retention >10 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar OTP EPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT27C010-70PI | Same 128K×8 OTP EPROM, identical AC/DC specs, but in 32P6 PDIP package instead of PLCC. | Requires through-hole PCB layout and socket; less suitable for high-density surface-mount assemblies. | Select when legacy board reuse, manual prototyping, or socket-based reprogramming is required. |
| AT27C010-70TI | Same core functionality and timing, but housed in 32T TSOP package (8.7 × 13.4 mm) with gull-wing leads. | Enables compact, low-profile placement; better thermal dissipation than PLCC but lower mechanical robustness. | Choose for space-constrained industrial controllers where board area is premium and rework capability is acceptable. |
Compared with AT27C010-70JI, the AT27C010-70PI offers through-hole mounting flexibility at the cost of larger footprint and higher assembly cost, while the AT27C010-70TI trades PLCC's mechanical ruggedness for superior density - all three share identical electrical behavior and programming methodology.
Availability
AT27C010-70JI is available at Aetrix Electronics and suitable for industrial control systems, legacy microcontroller boot applications, and medical device configuration storage requiring stable component supply across extended lifecycle demands.
Supply support for AT27C010-70JI 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 manufacturer specializing in microcontrollers, nonvolatile memory, and secure authentication ICs.
The AT27C010 series was developed as a high-reliability, industry-standard OTP EPROM solution targeting firmware storage in industrial, automotive, and medical systems where data immutability and long-term retention are critical.
FAQ
What is the maximum read access time specified for the AT27C010-70JI?
The AT27C010-70JI has a maximum read access time (tACC) of 70 ns under industrial temperature conditions (–40°C to +85°C) and 5V ±10% supply. This value is guaranteed across the full operating range and is measured from address valid to valid data output with CE and OE both asserted low.
Does the AT27C010-70JI require a separate programming voltage during normal operation?
No, the AT27C010-70JI requires VPP = 13.0V ±0.25V only during programming; in read mode, it operates from a single 5V ±10% supply. VPP must be applied after VCC and removed before VCC to prevent device damage - no VPP connection is needed for standard read functionality.
Can the AT27C010-70JI be used as a direct replacement for UV-erasable EPROMs like the 27C512?
The AT27C010-70JI is not a pin-compatible or functional replacement for the 27C512 (64K×8), as it differs in density (128K×8), pin count (32 vs. 28), and programming method (one-time vs. UV-erasable). However, it serves the same system role - nonvolatile boot memory - with improved reliability and no quartz window requirement.
What is the purpose of the NC pin on the AT27C010-70JI PLCC package?
Pin 14 on the AT27C010-70JI PLCC package is designated NC (No Connect) and contains no internal connection. It must remain electrically floating - neither tied to VCC nor GND - to avoid unintended coupling or stress on the die. This pin position accommodates package variant compatibility within the AT27C010 family.
How does the Rapid™ Programming Algorithm improve production efficiency for the AT27C010-70JI?
The Rapid™ Programming Algorithm reduces AT27C010-70JI programming time to ~100 µs per byte with built-in verify-and-reprogram loops. This cuts total 128K-byte programming time to under 13 seconds versus minutes for conventional EPROM algorithms, significantly accelerating firmware loading in high-volume manufacturing and reducing programmer throughput bottlenecks.
AT27C010-70JI 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:
- 70 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)
AT27C010-70JI FAQ
1.How can I place an order for AT27C010-70JI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT27C010-70JI 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 AT27C010-70JI reliable?
The price and inventory of AT27C010-70JI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT27C010-70JI is usually 5 days.
3.What payment methods are accepted for AT27C010-70JI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT27C010-70JI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT27C010-70JI?
AT27C010-70JI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT27C010-70JI 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 AT27C010-70JI?
For technical support, including AT27C010-70JI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT27C010-70JI requirements.
6.How does Aetrix verify that AT27C010-70JI is sourced from the original manufacturer or authorized distributors?
All AT27C010-70JI 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 AT27C010-70JI meets industry standards.
7.What is the process for return or replacement of AT27C010-70JI?
All AT27C010-70JI units undergo pre-shipment inspection (PSI). If there is an issue with AT27C010-70JI, 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 AT27C010-70JI part is unused and in its original packaging.
Return procedure for AT27C010-70JI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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