My Inquiry
My Account
Microchip Technology AT27C010-12JI
- Part No.:
- AT27C010-12JI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-LCC (J-Lead)
- Datasheet:
-
AT27C010-12JI.pdf
- Description:
- IC EPROM 1MBIT PARALLEL 32PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:4,554
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AT27C010-12JI 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. Its dual-line control (CE/OE) prevents bus contention in embedded boot memory applications.
For engineers reviewing the AT27C010-12JI datasheet, AT27C010-12JI pinout, AT27C010-12JI application, or AT27C010-12JI equivalent, key selection criteria include verified 45 ns tACC timing, 35 mA active current at 5 MHz, VPP = 12.0 V programming voltage, integrated product identification code, and JEDEC-standard PLCC-32 packaging compatibility.
Technical Context
The AT27C010-12JI implements a CMOS OTP EPROM architecture with addressable 128K × 8-bit organization, requiring only VCC and VPP during programming. Its Rapid™ algorithm enables 100 µs/byte typical programming with up to 10 reprogram pulses per byte and full verification loop.
It features TTL/CMOS-compatible I/O, 2000V ESD protection, 200 mA latchup immunity, and dual power control via CE (chip enable) and OE (output enable) to manage output drivers and standby current. The device uses A0–A16 for addressing and O0–O7 for bidirectional data during programming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1,048,576-bit (128K × 8) OTP EPROM - provides sufficient space for boot code or fixed firmware without refresh or write endurance concerns. |
| Read Access Time (tACC) | 45 ns max - eliminates WAIT states in 5 MHz microprocessor buses and supports high-speed instruction fetch. |
| VCC Supply | 5V ±10% - compatible with standard logic rails; no auxiliary voltage required for read operation. |
| Active Current (ICC) | 35 mA max at 5 MHz - defines power budget for sustained read bursts in industrial control systems. |
| Standby Current (ISB) | 100 µA max - enables low-power hold mode during processor sleep or idle cycles. |
| VPP Programming Voltage | 12.0 V ±0.5 V - requires dedicated programming supply; not used during normal read operation. |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments including factory automation and motor drives. |
Pinout & Package
AT27C010-12JI is supplied in a 32-lead Plastic J-Leaded Chip Carrier (PLCC), JEDEC MS-016 AE compliant, with 1.27 mm pitch and body size 18.5 × 18.5 mm. Pin 1 is marked by index notch; leads are gull-wing shaped and surface-mount compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus supporting full 128K-byte decoding; driven by MPU address lines with CMOS/TTL-compatible thresholds. |
| O0–O7 | Data Outputs / Inputs | 8-bit bidirectional data path; outputs valid after tOE/tCE delay; inputs sampled during programming under PGM strobe. |
| CE | Chip Enable | Active-low global enable; places device in standby (High-Z) when deasserted; controls ICC and ISB transitions. |
| OE | Output Enable | Active-low output gate; allows shared bus operation by disabling outputs independently of CE state. |
| PGM | Program Strobe | Active-low pulse input (100 µs width) that initiates byte programming when VPP = 12 V and CE = VIL. |
| VPP | Programming Voltage | 12.0 V input required only 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 during read; supplies internal circuitry during program/verify cycles. |
| GND | Ground Reference | Common return for VCC, VPP, and I/O; requires local 0.1 µF ceramic decoupling per device per datasheet layout guidance. |
| NC | No Connect | Pin 14 (PLCC) is unconnected internally; must remain floating or tied to GND per board design best practice. |
Key Features
| Feature | Design Value |
|---|---|
| Rapid™ Programming Algorithm | 100 µs/byte typical programming time with automatic verify-and-reprogram loop ensures production throughput and programming yield. |
| Integrated Product Identification Code | Two-byte electronic ID (Manufacturer: 0x1E, Device: 0x05) accessible via A9/VH and A0 toggle - enables auto-detection in universal programmers. |
| JEDEC Standard Packages | 32-lead PLCC (32J) footprint - ensures mechanical and solder-reflow compatibility with legacy industrial PCBs and socketed test fixtures. |
| High Reliability CMOS Process | 2000V HBM ESD rating and 200 mA latchup immunity - supports robust operation in noisy factory-floor environments. |
| Dual-Line Control Architecture | Independent CE and OE inputs - permits flexible bus arbitration, partial memory mapping, and reduced system-level contention risk. |
Applications
| Industrial PLC Firmware Storage | Legacy Microcontroller Boot ROM |
|---|---|
|
Use Scenario: Storing fixed ladder logic and I/O configuration in programmable logic controllers deployed in manufacturing cells. IC Role / Device Role / Timing Role: Nonvolatile boot memory mapped to CPU address space; accessed during power-on reset with deterministic 45 ns latency. Use Value: Eliminates reliance on external EEPROM or flash; avoids firmware corruption risks from power interruption during writes. |
Use Scenario: Providing immutable startup code for 8-bit/16-bit MCUs in medical diagnostic instruments where firmware integrity is critical. IC Role / Device Role / Timing Role: Primary read-only instruction memory; synchronized to CPU clock via CE/OE handshaking without wait-state insertion. Use Value: Guarantees consistent boot behavior across temperature extremes (–40°C to +85°C) with no wear-out mechanism. |
| Automotive Engine Control Module (ECM) Calibration Data | Test Equipment Firmware Repository |
|
Use Scenario: Holding engine calibration tables and safety-critical lookup data in Tier-1 automotive ECMs certified to AEC-Q100 Class 2. IC Role / Device Role / Timing Role: Read-only data store accessed by DSP core during real-time fuel injection calculations. Use Value: Delivers sub-50 ns access to calibration parameters, enabling deterministic loop timing without cache misses. |
Use Scenario: Hosting firmware images and self-test routines in automated test equipment used for semiconductor final test handlers. IC Role / Device Role / Timing Role: System-level firmware ROM; loaded at power-up into RAM or executed directly via XIP-capable controller. Use Value: Supports field upgrades via UV-erasable replacement - simplifies maintenance without requiring flash programming infrastructure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar OTP EPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT27C010-12PC | Same die, PDIP-32 package instead of PLCC-32; 0.600" width; through-hole mount. | Suitable for prototyping, manual assembly, or legacy through-hole PCBs; lacks surface-mount thermal/mechanical advantages. | Select when board assembly uses wave soldering or sockets; verify footprint and thermal derating vs. PLCC. |
| AT27C010-12TI | Same die, TSOP-32 package; thinner profile (1.2 mm height); lead pitch 0.5 mm. | Better suited for space-constrained portable or modular test equipment; higher density but less robust mechanical mounting. | Choose for compact designs requiring low-profile mounting; confirm PCB pad layout matches MO-142 BD outline. |
Compared with AT27C010-12PC and AT27C010-12TI, the AT27C010-12JI offers superior vibration resistance and thermal cycling performance in industrial control panels due to its PLCC gull-wing leads and larger thermal mass, while maintaining identical timing, programming, and electrical behavior.
Availability
AT27C010-12JI 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 over extended production lifecycles.
Supply support for AT27C010-12JI 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 (now part of Microchip Technology) is a fabless semiconductor company specializing in microcontrollers, nonvolatile memory, and secure authentication ICs for industrial and automotive markets.
The AT27C010(L) product line was engineered for reliable, low-risk firmware storage in systems where field reprogrammability is unnecessary and data integrity over decades is mandatory.
FAQ
What is the maximum operating temperature range for the AT27C010-12JI?
The AT27C010-12JI is rated for industrial temperature operation from –40°C to +85°C. This range is validated per JEDEC JESD22-A104 and confirmed in the ordering information table on page 9 of the datasheet. The device maintains full AC/DC specifications across this range, including 45 ns tACC and 35 mA ICC max. AT27C010-12JI does not support automotive (–40°C to +125°C) or extended commercial ranges.
Does the AT27C010-12JI require a separate VPP supply during normal read operation?
No, the AT27C010-12JI requires only a single 5V ±10% VCC supply during normal read operation. VPP (12.0 V ±0.5 V) is needed exclusively during programming and verification cycles. Per datasheet Section "System Considerations", VPP must be sequenced after VCC and removed before VCC to prevent latchup. AT27C010-12JI draws zero current from VPP in read mode.
Can the AT27C010-12JI be used as a direct replacement for the AT27C010-12PI?
Yes, the AT27C010-12JI and AT27C010-12PI share identical die, timing, programming characteristics, and pinout - differing only in package (PLCC vs. PDIP) and temperature grading (both industrial). They are functionally interchangeable in systems where mechanical fit and thermal profile allow. AT27C010-12JI retains all electrical specs of AT27C010-12PI, including 45 ns tACC and 35 mA ICC.
What is the purpose of the PGM pin on the AT27C010-12JI?
The PGM pin on the AT27C010-12JI is an active-low programming strobe that initiates byte programming when asserted (VIL) with VPP = 12.0 V and CE = VIL. It triggers the Rapid™ algorithm's 100 µs pulse cycle and subsequent verify loop. During read or standby modes, PGM must be held VIH or floated; incorrect PGM assertion can corrupt data. AT27C010-12JI requires precise PGM timing per AC Programming Characteristics table (tPW = 95–105 µs).
How is the Integrated Product Identification Code accessed on the AT27C010-12JI?
The Integrated Product Identification Code on the AT27C010-12JI is read by setting A9 to VH (11.5–12.5 V), holding A1–A16 low, and toggling A0: A0 = VIL reads Manufacturer ID (0x1E), A0 = VIH reads Device Code (0x05). Outputs O7–O0 reflect the selected byte. This feature is electrically verified and used by industry-standard programmers to auto-select algorithms. AT27C010-12JI supports this mode in read or PGM verify states.
AT27C010-12JI 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)
AT27C010-12JI FAQ
1.How can I place an order for AT27C010-12JI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT27C010-12JI 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 AT27C010-12JI reliable?
The price and inventory of AT27C010-12JI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT27C010-12JI is usually 5 days.
3.What payment methods are accepted for AT27C010-12JI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT27C010-12JI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT27C010-12JI?
AT27C010-12JI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT27C010-12JI 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 AT27C010-12JI?
For technical support, including AT27C010-12JI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT27C010-12JI requirements.
6.How does Aetrix verify that AT27C010-12JI is sourced from the original manufacturer or authorized distributors?
All AT27C010-12JI 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 AT27C010-12JI meets industry standards.
7.What is the process for return or replacement of AT27C010-12JI?
All AT27C010-12JI units undergo pre-shipment inspection (PSI). If there is an issue with AT27C010-12JI, 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 AT27C010-12JI part is unused and in its original packaging.
Return procedure for AT27C010-12JI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT27C010-12JI Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
