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Microchip Technology AT27C010-12TC
- Part No.:
- AT27C010-12TC
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT27C010-12TC.pdf
- Description:
- IC EPROM 1MBIT PARALLEL 32TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,481
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Product details
Overview
AT27C010-12TC from Atmel is a 1-Mbit (128K × 8) one-time programmable EPROM with 45 ns read access time, 5V ±10% supply operation, and JEDEC-standard 32-lead TSOP packaging. It delivers high-speed firmware storage for microprocessor systems without wait states and supports commercial temperature range (0°C to 70°C).
For engineers reviewing the AT27C010-12TC datasheet, AT27C010-12TC pinout, AT27C010-12TC application, or AT27C010-12TC equivalent, key selection criteria include verified 45 ns tACC timing, VPP = 12.0 V programming voltage, CMOS/TTL-compatible I/O, 100 µA max standby current, and Rapid™ 100 µs/byte programming algorithm compliance.
Technical Context
The AT27C010-12TC implements a parallel-addressed OTP EPROM architecture with dual-line control (CE and OE) enabling bus contention prevention in shared-data-bus systems. Its address space spans A0–A16 (17-bit), supporting full 128K-byte random access with output drivers compliant to both CMOS and TTL logic thresholds.
Programming requires VPP = 12.0 ± 0.5 V applied during PGM strobes while VCC remains at 6.5 V; verification uses standard read mode with VPP = 5 V. The integrated Product Identification Code (Manufacturer ID = 0x1E, Device ID = 0x05) is accessed via A9 = 12 V and A0 toggling, enabling automated programmer recognition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1,048,576-bit (128K × 8) OTP EPROM - fixed firmware storage with no re-erasure capability |
| Read Access Time | 45 ns (tACC) - enables direct interface with 22 MHz+ microprocessors without wait-state insertion |
| VCC Supply | 5 V ±10% - single-supply operation compatible with legacy 5V logic families and industrial power rails |
| Standby Current | 100 µA max - low quiescent draw suitable for battery-backed or energy-sensitive embedded systems |
| Active Current | 35 mA max at 5 MHz - defines thermal budget and decoupling requirements for sustained read bursts |
| Programming Voltage | VPP = 12.0 ± 0.5 V - required only during programming; must be applied after VCC and removed before VCC |
| ESD Protection | 2000 V HBM - ensures robustness during handling and board assembly in non-ESD-controlled environments |
Pinout & Package
AT27C010-12TC is housed in a 32-lead Plastic Thin Small Outline Package (TSOP), Type 1, JEDEC MO-142 BD compliant, with 0.5 mm lead pitch and body dimensions 11.8 × 10.0 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit parallel address bus; fully decoded to select one of 128K bytes; TTL/CMOS compatible |
| O0–O7 | Data Outputs | 8-bit bidirectional data bus in read mode; high-impedance when CE or OE inactive |
| CE | Chip Enable | Active-low global enable; controls device power state and output driver activation |
| OE | Output Enable | Active-low output gate; allows shared bus operation by disabling outputs without powering down chip |
| PGM | Program Strobe | Active-low pulse input (100 µs width) initiating byte programming under VPP = 12 V |
| VPP | Programming Voltage | 12 V input pin; must be driven externally during programming; tied to VCC in read mode |
| VCC | Power Supply | +5 V core supply; powers logic and output drivers; requires local 0.1 µF ceramic decoupling |
| GND | Ground | Reference return for all signals and supplies; separate ground plane recommended for noise immunity |
| NC | No Connect | Pin 14 (TSOP top view) is unconnected internally; must remain floating or grounded per layout rules |
Key Features
| Feature | Design Value |
|---|---|
| Rapid™ Programming Algorithm | 100 µs/byte typical programming time - reduces production burn-in cycle duration and improves throughput |
| Integrated Product ID Code | Manufacturer ID = 0x1E, Device ID = 0x05 - enables automatic algorithm selection in universal programmers |
| Two-Line Control Architecture | Independent CE and OE inputs - permits flexible memory mapping and eliminates bus contention in multi-device systems |
| High-Reliability Process | 200 mA latchup immunity and 2000 V HBM ESD rating - ensures field reliability in industrial control and automotive ECUs |
| JEDEC Standard Packages | 32-lead TSOP (32T), PLCC (32J), PDIP (32P6) - supports drop-in replacement across form factors without redesign |
Applications
| Industrial PLC Firmware Storage | Legacy PC BIOS ROM |
|---|---|
|
Use Scenario: Storing fixed ladder logic and I/O configuration in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Non-volatile firmware repository providing deterministic 45 ns read latency to real-time execution engines. Use Value: Eliminates boot delays associated with mass storage; withstands wide temperature swings (-40°C to 85°C industrial grade variants available). |
Use Scenario: Holding system initialization code and hardware abstraction layer in desktop and server motherboards prior to flash migration. IC Role / Device Role / Timing Role: Parallel-boot ROM interfaced directly to x86 address/data buses with CE/OE handshaking. Use Value: Guarantees sub-50 ns instruction fetch timing critical for POST sequence stability and compatibility with ISA/PCI timing budgets. |
| Automotive Instrument Cluster Bootloader | Medical Diagnostic Equipment Calibration Data |
|
Use Scenario: Storing immutable bootloader code and safety-critical display initialization routines in vehicle dashboards operating across -40°C to 125°C. IC Role / Device Role / Timing Role: OTP security anchor preventing runtime modification of startup firmware; accessed via microcontroller's external memory interface. Use Value: Meets AEC-Q100 stress test requirements via 200 mA latchup immunity and 2000 V ESD protection. |
Use Scenario: Retaining factory-calibrated sensor coefficients and regulatory-compliant diagnostic algorithms in portable ultrasound and ECG devices. IC Role / Device Role / Timing Role: Tamper-proof calibration store accessed during power-up self-test sequences. Use Value: Ensures traceable, unalterable reference data integrity required for FDA 510(k) and IEC 62304 certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar OTP EPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT27C010-12JC | Same die, 32-lead PLCC package instead of TSOP; 1.27 mm lead pitch vs. 0.5 mm | Preferred for through-hole prototyping or legacy PCBs with PLCC footprints | Select when mechanical compatibility with existing PLCC sockets or wave-solder processes is required |
| AT27C010-12PC | Same die, 32-lead PDIP package; 0.600" width, through-hole mounting | Suitable for lab validation, educational kits, and low-volume industrial control boards | Choose for manual assembly, breadboarding, or where thermal mass and serviceability outweigh density constraints |
Compared with AT27C010-12TC, the AT27C010-12JC offers identical electrical performance in a surface-mount PLCC format with larger pitch for easier rework, while AT27C010-12PC provides through-hole reliability and debug accessibility at the cost of board area and automated assembly compatibility.
Availability
AT27C010-12TC is available at Aetrix Electronics and suitable for industrial PLC firmware storage, legacy PC BIOS ROM, and automotive instrument cluster bootloader applications requiring stable component supply across extended product lifecycles.
Supply support for AT27C010-12TC 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, non-volatile memory, and secure authentication ICs.
The AT27C010(L) series was designed as a high-reliability, low-power OTP EPROM family targeting firmware storage in industrial, automotive, and computing systems where data immutability and long-term retention are critical.
FAQ
What is the maximum allowed VPP voltage for programming the AT27C010-12TC?
The AT27C010-12TC requires VPP = 12.0 ± 0.5 V during programming, with absolute maximum rating of +14.0 V on A9 and VPP pins. Exceeding 12.5 V risks oxide damage and irreversible programming failure; always verify VPP regulation accuracy and transient suppression using a 0.1 µF capacitor between VPP and GND.
Does the AT27C010-12TC support read operations while VPP is connected to 5 V?
Yes - the AT27C010-12TC operates in standard read mode with VPP tied to VCC (5 V). VPP must be raised to 12 V only during programming; maintaining VPP = 5 V during reads ensures correct logic levels and prevents unintended program mode entry. The device ignores PGM pulses unless VPP = 12 V is present.
Can the AT27C010-12TC be used in place of the AT27C010L-12TC?
No - the AT27C010-12TC draws up to 35 mA active current, whereas the AT27C010L-12TC draws only 25 mA. Substituting them requires verifying power supply headroom and thermal design margins; they share identical timing, pinout, and programming behavior but differ in ICC specification and standby current (100 µA vs. 10 µA typical).
What is the purpose of the NC pin on the AT27C010-12TC TSOP package?
Pin 14 in the AT27C010-12TC TSOP top-view layout is designated NC (No Connect) and is not bonded internally. It must remain unconnected or grounded per PCB layout guidelines - floating NC pins can act as antennas for noise coupling, so grounding adjacent to GND planes is recommended for EMI-sensitive designs.
How is the Product Identification Code accessed on the AT27C010-12TC?
The AT27C010-12TC Product Identification Code is read by asserting A9 = 12.0 V (VID), holding A1–A16 = 0 V, and toggling A0 between VIL and VIH while CE = OE = VIL. A0 = VIL returns Manufacturer ID (0x1E); A0 = VIH returns Device ID (0x05). This mode requires VPP = 12 V and is supported by all industry-standard EPROM programmers.
AT27C010-12TC 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:
- 120 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
AT27C010-12TC FAQ
1.How can I place an order for AT27C010-12TC through Aetrix?
Please submit a Request for Quotation (RFQ) for AT27C010-12TC 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 AT27C010-12TC reliable?
The price and inventory of AT27C010-12TC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT27C010-12TC is usually 5 days.
3.What payment methods are accepted for AT27C010-12TC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT27C010-12TC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT27C010-12TC?
AT27C010-12TC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT27C010-12TC 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 AT27C010-12TC?
For technical support, including AT27C010-12TC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT27C010-12TC requirements.
6.How does Aetrix verify that AT27C010-12TC is sourced from the original manufacturer or authorized distributors?
All AT27C010-12TC 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 AT27C010-12TC meets industry standards.
7.What is the process for return or replacement of AT27C010-12TC?
All AT27C010-12TC units undergo pre-shipment inspection (PSI). If there is an issue with AT27C010-12TC, 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 AT27C010-12TC part is unused and in its original packaging.
Return procedure for AT27C010-12TC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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