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Microchip Technology AT27C010-90JI
- Part No.:
- AT27C010-90JI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-LCC (J-Lead)
- Datasheet:
-
AT27C010-90JI.pdf
- Description:
- IC EPROM 1MBIT PARALLEL 32PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,785
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Product details
Overview
AT27C010-90JI 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 32-lead PLCC packaging. Its dual-line control (CE/OE) prevents bus contention in embedded boot memory applications.
For engineers reviewing the AT27C010-90JI datasheet, AT27C010-90JI pinout, AT27C010-90JI application, or AT27C010-90JI equivalent, key selection criteria include verified 45 ns tACC timing, 35 mA active current at 5 MHz, industrial-grade reliability (2000V ESD, 200 mA latchup immunity), Rapid™ programming (100 µs/byte), and JEDEC-standard PLCC package compatibility.
Technical Context
The AT27C010-90JI implements a CMOS OTP EPROM architecture with address decoding for 128K × 8-bit organization. It uses standard TTL/CMOS-compatible inputs and outputs, and integrates a product identification code accessible via A0/A9 voltage-controlled read mode.
Its operation relies on two independent enable signals-Chip Enable (CE) and Output Enable (OE)-to manage output tristating and power state transitions. Programming requires VPP = 13.0 V and VCC = 6.5 V, with a 100 µs PGM pulse width and up to 10 reprogramming attempts per byte during verification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1,048,576-bit (128K × 8) OTP EPROM - fixed firmware storage without erase capability. |
| Read Access Time (tACC) | 90 ns max - ensures no WAIT states required for 11 MHz CPU interfaces. |
| VCC Supply | 5 V ±10% - compatible with standard logic rails; no auxiliary voltage needed in read mode. |
| Active Current (ICC) | 35 mA max at 5 MHz - defines power budget for sustained read bursts in industrial controllers. |
| Standby Current (ISB) | 100 µA max - enables low-power hold mode during system sleep without external gating. |
| ESD/Latchup Rating | 2000 V HBM ESD, 200 mA latchup immunity - meets industrial IEC 61000-4-2 robustness requirements. |
| Operating Temperature | –40°C to +85°C - qualified for industrial automation, motor drives, and PLC environments. |
Pinout & Package
AT27C010-90JI is supplied 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/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus interface; selects one of 131,072 bytes (128K) for read or program access. |
| O0–O7 | Data Outputs | 8-bit bidirectional data bus in read mode; high-impedance when CE or OE inactive. |
| CE | Chip Enable | Primary device select; must be low to activate internal circuitry and allow addressing. |
| OE | Output Enable | Secondary output gate; controls data bus drive only - allows CE-based power management. |
| PGM | Program Strobe | Active-low pulse input (100 µs width) that initiates byte programming when VPP = 13 V applied. |
| VPP | Programming Voltage | 13.0 V ±0.25 V input required only during programming; must be applied after VCC and removed before VCC. |
| NC | No Connect | Pin 14 (PLCC) is unconnected - must remain floating; not usable as ground or signal. |
Key Features
| Feature | Design Value |
|---|---|
| Rapid™ Programming Algorithm | 100 µs/byte typical programming time with automatic verify/reprogram loop - reduces firmware update cycle time by >5× vs legacy EPROMs. |
| Integrated Product Identification Code | Manufacturer ID (0x1E) and Device Code (0x05) readable via A9/VH and A0 toggle - enables auto-detection in universal programmers. |
| Dual-Line Control (CE/OE) | Independent chip and output enables - permits partial bus sharing and eliminates need for external bus transceivers. |
| High-Reliability CMOS Process | 2000 V HBM ESD protection and 200 mA latchup immunity - sustains operation in electrically noisy factory-floor environments. |
| JEDEC Standard Packages | 32-lead PLCC (32J) footprint - ensures drop-in compatibility with existing EPROM sockets and PCB layouts. |
Applications
| Industrial PLC Firmware Storage | Legacy Microcontroller Boot ROM |
|---|---|
|
Use Scenario: Storing immutable boot code and configuration tables in programmable logic controllers deployed in factory automation. IC Role / Device Role / Timing Role: Nonvolatile boot memory mapped to CPU address space; accessed during cold start and reset recovery. Use Value: 90 ns tACC eliminates WAIT states for 11 MHz Z80/8051 derivatives; industrial temp rating ensures uptime in unconditioned control cabinets. |
Use Scenario: Providing fixed startup instructions and peripheral initialization routines for 8-bit microcontrollers in medical instrumentation. IC Role / Device Role / Timing Role: Read-only instruction memory executing directly from address bus; decoupled from RAM write cycles. Use Value: CMOS/TTL compatibility guarantees interoperability with legacy 5 V logic families; 100 µA standby current extends battery-backed operation. |
| Automotive Engine Control Module (ECM) Calibration Data | Point-of-Sale Terminal BIOS Storage |
|
Use Scenario: Holding engine calibration maps and safety-critical lookup tables in automotive ECMs where field updates are prohibited. IC Role / Device Role / Timing Role: OTP data repository accessed during ignition sequence; immune to accidental overwrite or voltage glitch corruption. Use Value: 2000 V ESD rating withstands assembly line handling; –40°C to +85°C range covers under-hood thermal cycling. |
Use Scenario: Securing immutable BIOS and payment protocol stacks in retail POS terminals subject to long service life and regulatory audit. IC Role / Device Role / Timing Role: Immutable firmware vault; programmed once at factory and never modified in field. Use Value: Rapid™ programming enables high-throughput production burn-in; JEDEC PLCC package simplifies socket-based rework and traceability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar OTP EPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT27C020-90JI | 2-Mbit (256K × 8) capacity; identical 90 ns tACC, same PLCC package and pinout. | Supports larger firmware images; requires wider address bus (A17 added). | Select when firmware exceeds 128K bytes but board layout and timing constraints match AT27C010-90JI. |
| MX27C1001-90PC | 1-Mbit OTP EPROM in PDIP; 90 ns tACC, 35 mA ICC, but lacks integrated ID code and Rapid™ algorithm. | Requires external programmer setup; no auto-ID for production line validation. | Choose for cost-sensitive, low-volume PDIP-based designs where ID code and fast programming are noncritical. |
Compared with AT27C010-90JI, AT27C020-90JI doubles storage while maintaining pin compatibility and timing, whereas MX27C1001-90PC trades programmability features for lower unit cost in through-hole assembly - both require explicit evaluation of address bus width and programmer support.
Availability
AT27C010-90JI is available at Aetrix Electronics and suitable for industrial PLC firmware storage, legacy microcontroller boot ROM, and automotive ECM calibration data applications requiring stable component supply across extended product lifecycles.
Supply support for AT27C010-90JI 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(L) series was engineered for reliable, low-cost firmware storage in industrial and automotive systems where data integrity, long-term retention, and programming efficiency are critical.
FAQ
What is the maximum operating frequency supported by AT27C010-90JI?
The AT27C010-90JI does not operate at a clock frequency itself, but its 90 ns read access time (tACC) supports reliable interfacing with microprocessors running up to approximately 11 MHz without WAIT states. This timing is validated under industrial temperature conditions and 5 V ±10% supply, making AT27C010-90JI suitable for real-time control applications where deterministic memory access is required.
Can AT27C010-90JI be reprogrammed after initial programming?
No, AT27C010-90JI is a one-time programmable (OTP) EPROM. Once programmed, its contents cannot be erased or rewritten. The silicon fuse-based storage mechanism provides permanent, tamper-resistant firmware retention. AT27C010-90JI is intended for final production programming only - design iterations require new devices.
What voltage levels are required to program AT27C010-90JI?
Programming AT27C010-90JI requires VCC = 6.5 V ±0.25 V and VPP = 13.0 V ±0.25 V applied simultaneously, with VPP enabled only during the 100 µs PGM pulse. VCC must be applied before and removed after VPP. These voltages are strictly defined in the AC/DC programming characteristics section of the AT27C010-90JI datasheet and must be sourced from regulated supplies.
Is AT27C010-90JI pin-compatible with other speed grades in the same package?
Yes, all AT27C010-x0JI variants (e.g., -45JI, -70JI, -90JI) share identical PLCC pinout, signal definitions, and DC characteristics. The suffix denotes read access time grading only - a -90JI can replace a -70JI or -45JI in the same socket, though timing margins will tighten. No PCB changes are required for speed grade substitution within the same temperature and package variant.
Does AT27C010-90JI support automatic device identification during programming?
Yes, AT27C010-90JI implements an Integrated Product Identification Code. By applying VH (12.0 V) to A9 and toggling A0, the device returns Manufacturer ID (0x1E) and Device Code (0x05) on O7–O0. This feature enables automated algorithm selection in industry-standard programmers, ensuring correct VPP timing and verification sequences for AT27C010-90JI without manual configuration.
AT27C010-90JI 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:
- 90 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)
AT27C010-90JI FAQ
1.How can I place an order for AT27C010-90JI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT27C010-90JI 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 AT27C010-90JI reliable?
The price and inventory of AT27C010-90JI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT27C010-90JI is usually 5 days.
3.What payment methods are accepted for AT27C010-90JI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT27C010-90JI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT27C010-90JI?
AT27C010-90JI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT27C010-90JI 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 AT27C010-90JI?
For technical support, including AT27C010-90JI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT27C010-90JI requirements.
6.How does Aetrix verify that AT27C010-90JI is sourced from the original manufacturer or authorized distributors?
All AT27C010-90JI 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 AT27C010-90JI meets industry standards.
7.What is the process for return or replacement of AT27C010-90JI?
All AT27C010-90JI units undergo pre-shipment inspection (PSI). If there is an issue with AT27C010-90JI, 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 AT27C010-90JI part is unused and in its original packaging.
Return procedure for AT27C010-90JI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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