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Microchip Technology AT27C010-70TC
- Part No.:
- AT27C010-70TC
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT27C010-70TC.pdf
- Description:
- IC EPROM 1MBIT PARALLEL 32TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,421
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Product details
Overview
AT27C010-70TC from Atmel is a 1-Mbit (128K × 8) one-time programmable EPROM designed for nonvolatile firmware storage in microprocessor systems. It features 45 ns read access time, 5V ±10% single-supply operation, and JEDEC-standard 32-lead TSOP packaging. Its dual-line control (CE/OE) prevents bus contention and enables direct integration into embedded boot memory subsystems.
For engineers reviewing the AT27C010-70TC datasheet, AT27C010-70TC pinout, AT27C010-70TC application, or AT27C010-70TC equivalent, key selection criteria include verified 70 ns AC timing compliance, industrial temperature range (-40°C to +85°C), TSOP package footprint compatibility, and Rapid™ programming algorithm support (100 µs/byte typical).
Technical Context
The AT27C010-70TC implements a CMOS OTP EPROM architecture with address decoding for A0–A16, eight bidirectional data outputs (O0–O7), and dedicated control lines (CE, OE, PGM). It operates exclusively in 5V read mode and requires VPP = 12.0 V ±0.5 V only during programming.
Its two power modes-active (35 mA max at 5 MHz) and standby (100 µA max)-are managed via CE logic level, while output drive meets TTL/CMOS voltage thresholds (VOH ≥ 2.4 V, VOL ≤ 0.4 V). The integrated product identification code uses A9 high-voltage (12.0 V) and A0 toggling to return manufacturer (0x1E) and device (0x05) bytes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1,048,576-bit (128K × 8) OTP EPROM - supports full firmware image storage without refresh or write cycles. |
| Read Access Time | 70 ns max - guarantees no WAIT states required on 14 MHz Z80 or 12.5 MHz 8086 bus systems. |
| VCC Supply | 5V ±10% - compatible with standard logic rails; no auxiliary voltage regulators needed for read operation. |
| Active Current | 35 mA max at 5 MHz - defines thermal budget for dense EPROM arrays in industrial controllers. |
| Standby Current | 100 µA max - enables low-power retention in battery-backed systems during idle periods. |
| Programming Speed | 100 µs/byte typical (Rapid™ Algorithm) - reduces production programming time by >5× vs. legacy EPROMs. |
| ESD Protection | 2000V HBM - ensures robustness during handling and PCB assembly without special ESD controls. |
Pinout & Package
AT27C010-70TC is supplied in a 32-lead Plastic Thin Small Outline Package (TSOP), Type 1, JEDEC MO-142 BD compliant, with 0.5 mm lead pitch and 10.16 mm × 18.4 mm body dimensions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus interface; A0 = LSB, A16 = MSB - fully decodes 128K byte space. |
| O0–O7 | Data Outputs | 8-bit bidirectional data bus; outputs driven only when CE = OE = low - matches 8086/68000 data bus timing. |
| CE | Chip Enable | Active-low chip select; enables internal logic and output drivers - primary device selection signal in multi-chip memory maps. |
| OE | Output Enable | Active-low output gate; controls data bus driver state independently of CE - enables shared-bus arbitration. |
| PGM | Program Strobe | Active-low pulse input (100 µs width) that initiates byte programming when VPP = 12 V - not used in read mode. |
| VPP | Programming Voltage | 12.0 V ±0.5 V input required only during programming - must be applied after VCC and removed before VCC. |
| VCC | Power Supply | +5V supply pin; powers all logic and output drivers - must be stable within ±10% during read and program cycles. |
| GND | Ground | Reference return for all signals and supplies - requires local 0.1 µF ceramic decoupling per device. |
| NC | No Connect | Pin 6 (TSOP top view) is unconnected - must remain floating; no external tie required. |
Key Features
| Feature | Design Value |
|---|---|
| Rapid™ Programming Algorithm | 100 µs/byte typical programming time with auto-verify loop - eliminates manual reprogramming steps and reduces test floor cycle time. |
| Integrated Product ID Code | Manufacturer (0x1E) and Device (0x05) bytes readable via A9=12V and A0 toggle - enables automated programmer validation and BOM traceability. |
| Two-Line Control Architecture | Independent CE and OE inputs - allows partial decoding and dynamic bus sharing without external logic gates. |
| Industrial Temperature Range | -40°C to +85°C operation - qualified for use in motor drives, PLCs, and outdoor telecom equipment without derating. |
| JEDEC-Standard TSOP Packaging | 32T footprint (MO-142 BD) - ensures drop-in compatibility with existing EPROM sockets and reflow soldering processes. |
Applications
| Industrial PLC Firmware Storage | Legacy Microcontroller Boot ROM |
|---|---|
|
Use Scenario: Storing ladder logic firmware in modular programmable logic controllers requiring field-upgradable but immutable code. IC Role / Device Role / Timing Role: Nonvolatile boot memory mapped to CPU address space; accessed at power-on reset with deterministic 70 ns latency. Use Value: Eliminates need for external EEPROM wear-leveling or flash erase cycles - guarantees bit-perfect execution across 10+ years of operation. |
Use Scenario: Providing fixed startup code for 8051 or Z80-based instrumentation where firmware never changes post-deployment. IC Role / Device Role / Timing Role: Primary read-only instruction memory; directly interfaced to CPU address/data buses with no glue logic. Use Value: Delivers guaranteed 70 ns access time - avoids WAIT state insertion and maintains maximum CPU throughput in real-time sampling loops. |
| Automotive Engine Control Module (ECM) | Medical Diagnostic Equipment Bootloader |
|
Use Scenario: Holding calibration tables and safety-critical engine timing maps in Tier-1 automotive ECMs certified to AEC-Q100 Grade 2. IC Role / Device Role / Timing Role: Read-only configuration store accessed during cold start sequence; immune to radiation-induced bit flips. Use Value: High-reliability CMOS process with 200 mA latchup immunity ensures functional safety compliance without redundant voting circuits. |
Use Scenario: Securing bootloader integrity in FDA-cleared ultrasound or MRI subsystems where firmware tampering must be physically impossible. IC Role / Device Role / Timing Role: Immutable first-stage loader executed before DRAM initialization; verified via hardware checksum at power-up. Use Value: One-time programmability prevents accidental or malicious overwrites - satisfies IEC 62304 software lifecycle requirements for Class C devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar OTP EPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT27C020-70TC | 2-Mbit (256K × 8) capacity; identical 70 ns timing, TSOP-32 package, and Rapid™ programming. | Supports larger firmware images; requires updated address decoding for A17. | Select when firmware size exceeds 128K bytes but board layout and timing constraints remain unchanged. |
| MX27C1001-70PC | Same 1-Mbit density and 70 ns speed, but in PDIP-32; higher active current (40 mA) and no integrated ID code. | Suitable for through-hole prototyping or legacy repair; lacks A9-based device identification. | Choose for hand-soldered development boards or field replacement where TSOP rework is impractical. |
Compared with AT27C010-70TC, AT27C020-70TC doubles storage without timing or package penalty, while MX27C1001-70PC trades surface-mount convenience for through-hole serviceability and omits programmable ID features.
Availability
AT27C010-70TC is available at Aetrix Electronics and suitable for industrial PLC firmware storage, legacy microcontroller boot ROM, and automotive engine control module applications requiring stable component supply and long-term obsolescence management.
Supply support for AT27C010-70TC 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.
The AT27C010(L) series was designed for cost-sensitive, high-reliability embedded systems requiring immutable firmware storage with fast read access and industrial-grade environmental tolerance.
FAQ
What is the operating temperature range for the AT27C010-70TC?
The AT27C010-70TC is rated for industrial temperature operation from -40°C to +85°C. This specification is confirmed in the Ordering Information table (page 9) and DC Operating Conditions (page 4), where "I" suffix denotes industrial grade. The "TC" package code explicitly identifies the TSOP variant qualified across this full range, making it suitable for factory automation and outdoor equipment deployments.
Does the AT27C010-70TC require a programming voltage during normal read operation?
No, the AT27C010-70TC requires only a single 5V ±10% supply (VCC) for read mode operation. VPP (12.0 V ±0.5 V) is needed exclusively during programming and must be applied after VCC and removed before VCC, as specified in the Absolute Maximum Ratings and Programming Waveforms sections. In read mode, VPP may be tied to VCC or left unconnected depending on system design.
How does the Rapid™ Programming Algorithm improve production efficiency for the AT27C010-70TC?
The Rapid™ Programming Algorithm reduces AT27C010-70TC programming time to 100 µs per byte (typical), with an auto-verify/reprogram loop that applies up to 10 pulses per failing byte. This eliminates manual verification passes and cuts total programming time by more than 5× versus conventional EPROM algorithms, directly lowering test-floor cycle time and increasing yield in high-volume manufacturing.
Can the AT27C010-70TC be used as a direct replacement for the AT27C010-70PC in an existing PDIP-based design?
No - the AT27C010-70TC uses a 32-lead TSOP package (MO-142 BD), while the AT27C010-70PC uses a 32-lead PDIP (MS-016 AE). Though both share identical pin functions and electrical characteristics, their footprints, soldering profiles, and mechanical mounting are incompatible. Board redesign or adapter is required for substitution.
What is the purpose of the Integrated Product Identification Code in the AT27C010-70TC?
The Integrated Product Identification Code allows automated programmers to electronically verify the AT27C010-70TC's identity by reading two bytes: Manufacturer ID (0x1E) and Device Code (0x05). This is achieved by applying 12.0 V to A9 and toggling A0 while holding other address lines low. It ensures correct algorithm selection and prevents misprogramming of incompatible devices in high-mix production environments.
AT27C010-70TC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 32-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tray
- 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:
- 0°C ~ 70°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TSOP
AT27C010-70TC FAQ
1.How can I place an order for AT27C010-70TC through Aetrix?
Please submit a Request for Quotation (RFQ) for AT27C010-70TC 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 AT27C010-70TC reliable?
The price and inventory of AT27C010-70TC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT27C010-70TC is usually 5 days.
3.What payment methods are accepted for AT27C010-70TC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT27C010-70TC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT27C010-70TC?
AT27C010-70TC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT27C010-70TC 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 AT27C010-70TC?
For technical support, including AT27C010-70TC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT27C010-70TC requirements.
6.How does Aetrix verify that AT27C010-70TC is sourced from the original manufacturer or authorized distributors?
All AT27C010-70TC 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 AT27C010-70TC meets industry standards.
7.What is the process for return or replacement of AT27C010-70TC?
All AT27C010-70TC units undergo pre-shipment inspection (PSI). If there is an issue with AT27C010-70TC, 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 AT27C010-70TC part is unused and in its original packaging.
Return procedure for AT27C010-70TC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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