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Microchip Technology AT93C86A-10PI-2.7
- Part No.:
- AT93C86A-10PI-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
AT93C86A-10PI-2.7.pdf
- Description:
- IC EEPROM 16KBIT 3-WIRE 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,687
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Product details
Overview
AT93C86A-10PI-2.7 from Microchip Technology (formerly Atmel) is a 16-kbit serial EEPROM with user-selectable 2048 × 8 or 1024 × 16 organization, 3-wire SPI-compatible interface, 2.7–5.5 V supply range, and industrial temperature rating (−40°C to +85°C). It delivers high reliability for embedded control storage in automotive body modules, industrial PLCs, and smart meter calibration data retention.
For engineers reviewing the AT93C86A-10PI-2.7 datasheet, AT93C86A-10PI-2.7 pinout, AT93C86A-10PI-2.7 application, or AT93C86A-10PI-2.7 equivalent, key selection criteria include voltage compatibility (2.7V min), self-timed 10 ms write cycle, Schmitt-trigger noise immunity, 1 million endurance cycles, and PDIP-8 package suitability for through-hole prototyping and legacy board upgrades.
Technical Context
The AT93C86A-10PI-2.7 implements a synchronous 3-wire serial interface (CS/SK/DI/DO) with instruction-based command set including READ, WRITE, ERASE, EWEN, and EWDS. Its ORG pin selects between x8 and x16 memory mapping, enabling flexible byte- or word-oriented access without external logic.
It features internal clock generation, READY/BUSY status reporting via DO during write/erase, and Schmitt-trigger inputs with filtering-ensuring robust operation in electrically noisy environments such as automotive chassis networks and factory floor controllers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 kbit (2048 × 8 or 1024 × 16), enabling compact firmware parameter storage or device configuration tables |
| Supply Voltage | 2.7 V to 5.5 V - supports direct connection to 3.3 V or 5 V rails without level-shifting |
| Write Cycle Time | Max 10 ms - enables deterministic timing budgeting for host firmware during nonvolatile updates |
| Endurance | 1 million write cycles - suitable for field-updatable calibration or logging applications with frequent writes |
| Data Retention | 100 years at 25°C - guarantees long-term integrity of stored security keys or manufacturing trim values |
| Operating Temp | −40°C to +85°C - qualified for industrial and automotive under-hood environments |
| Interface Speed | 2 MHz max at 5 V - provides sufficient throughput for infrequent configuration reads/writes |
Pinout & Package
AT93C86A-10PI-2.7 is housed in an 8-lead PDIP (0.300" wide) package, compatible with standard through-hole PCB assembly and socket-based programming fixtures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable; must be held low for entire instruction sequence; controls DO high-impedance state |
| SK | Serial Clock | Synchronizes all data transfers; rising edge latches DI, falling edge clocks DO |
| DI | Data Input | Receives instruction opcodes, addresses, and write data; includes Schmitt trigger for noise immunity |
| DO | Data Output | Serially outputs read data or READY/BUSY status; tri-stated when CS is high |
| VCC | Power Supply | 2.7–5.5 V input; powers internal logic and memory array; decoupling capacitor required |
| GND | Ground | Reference return path for all signals and supply; must be low-impedance |
| ORG | Organization Select | Connect to VCC for 1024 × 16 mode, GND for 2048 × 8 mode; determines address/data width |
| DC | Don't Connect | No internal connection; must remain unconnected per datasheet; floating or tied to GND invalidates behavior |
Key Features
| Feature | Design Value |
|---|---|
| User-selectable memory organization | Hardware-configurable x8/x16 mode via ORG pin eliminates need for software bit-packing or external multiplexing |
| Self-timed write cycle | No external delay or polling overhead required - host can issue next command after tWP (10 ms max) elapses |
| Schmitt-trigger, filtered inputs | Rejects fast transients up to 50 ns; enables reliable operation on long traces or near motor drivers |
| Write protection architecture | EWEN/EWDS instructions provide explicit, software-controlled enable/disable - prevents accidental overwrites during power transitions |
| Industrial temperature grade | Validated operation across −40°C to +85°C ensures consistent timing and data integrity in uncontrolled environments |
Applications
| Automotive Body Control Module | Industrial PLC Configuration Storage |
|---|---|
Use Scenario: Storing seat position presets, mirror angle offsets, and lighting profiles in a vehicle's BCM. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding user-customized settings across ignition cycles. Use Value: Enables zero-power retention of personalized settings without battery backup circuitry; ORG pin allows optimal 16-bit word alignment for multi-parameter groups. |
Use Scenario: Saving I/O mapping tables, PID tuning constants, and alarm thresholds in programmable logic controllers. IC Role / Device Role / Timing Role: Field-updatable parameter store accessed during boot or maintenance mode via microcontroller SPI peripheral. Use Value: Supports >1M reprogramming cycles for factory calibration and field service updates; 2.7 V min operation ensures compatibility with brown-out conditions during AC line dips. |
| Smart Electricity Meter Calibration Data | Medical Device Usage Logs |
Use Scenario: Recording meter-specific gain/offset trims and utility tariff tables during production calibration. IC Role / Device Role / Timing Role: Factory-programmed reference storage with 100-year data retention guarantee. Use Value: Eliminates need for external battery-backed SRAM; Schmitt-trigger inputs reject EMI from switching power supplies inside meter enclosures. |
Use Scenario: Logging usage timestamps, error codes, and sensor calibration history in portable diagnostic equipment. IC Role / Device Role / Timing Role: Tamper-resistant event log with deterministic write latency (≤10 ms) for audit trail compliance. Use Value: Meets IEC 62304 data integrity requirements; industrial temp rating ensures reliability during sterilization cycles or extended shelf life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95128-WMN6TP | 128 kbit capacity, SPI interface (4-wire), 1.8–5.5 V, 5 MHz max clock | Higher density and faster interface; requires CS/SCK/MOSI/MISO routing instead of 3-wire | Choose for systems needing larger configuration space or existing SPI infrastructure; not pin-compatible |
| STK12C88 | NVSRAM (128 kbit), parallel interface, 5 V only, battery-backed, 20-year retention | Byte-level random access and instant-write capability; no write cycle delay | Prefer where sub-microsecond write latency is critical; requires battery and PCB real estate for parallel bus |
Compared with M95128-WMN6TP and STK12C88, the AT93C86A-10PI-2.7 offers lower pin count, simpler 3-wire control, guaranteed 100-year retention, and direct 2.7 V compatibility - making it optimal for cost-sensitive, space-constrained industrial designs requiring moderate density and proven long-term stability.
Availability
AT93C86A-10PI-2.7 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLCs, smart meter calibration, and medical device logs requiring stable component supply across extended product lifecycles.
Supply support for AT93C86A-10PI-2.7 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
Microchip Technology is a global semiconductor company specializing in microcontrollers, analog devices, and nonvolatile memory solutions, with broad industrial and automotive qualification expertise.
The AT93C86A belongs to Microchip's legacy serial EEPROM product line, designed specifically for reliable, low-pin-count configuration and calibration storage in resource-constrained embedded systems.
FAQ
What is the operating voltage range for AT93C86A-10PI-2.7?
The AT93C86A-10PI-2.7 operates from 2.7 V to 5.5 V DC. This 2.7 V minimum enables direct interfacing with 3.3 V microcontrollers without level shifters, while maintaining full functionality-including write operations and READY/BUSY status reporting-across the entire range. The "-2.7" suffix explicitly denotes this low-voltage variant.
How does the ORG pin affect memory organization in AT93C86A-10PI-2.7?
In the AT93C86A-10PI-2.7, the ORG pin selects between two memory configurations: tied to VCC enables 1024 × 16 (word mode), and tied to GND enables 2048 × 8 (byte mode). This hardware-selectable organization allows system designers to optimize data access granularity without firmware changes-critical for aligning with MCU data bus width or protocol framing requirements.
Does AT93C86A-10PI-2.7 support sequential read operations?
Yes, the AT93C86A-10PI-2.7 supports automatic sequential read: after initiating a READ command, holding CS low causes the internal address pointer to increment automatically, outputting consecutive memory locations without reissuing the instruction. This reduces host CPU overhead and enables efficient bulk reads-for example, loading a full calibration table with minimal SPI transaction overhead.
What is the maximum clock frequency supported by AT93C86A-10PI-2.7?
The AT93C86A-10PI-2.7 supports up to 2 MHz SK clock frequency at VCC = 5.0 V. At lower voltages (e.g., 2.7 V), the maximum rated clock drops to 1 MHz per AC specifications. This ensures timing margin for reliable setup/hold compliance in noisy environments, especially when using longer PCB traces or higher-capacitance loads.
Is AT93C86A-10PI-2.7 qualified for automotive applications?
The AT93C86A-10PI-2.7 is specified for industrial temperature range (−40°C to +85°C) and carries Automotive Grade availability per datasheet, but it is not AEC-Q100 qualified. For production automotive ECUs requiring formal qualification, designers should verify compliance with their Tier 1's specific stress-test requirements; however, its extended temp rating and robust noise immunity make it widely deployed in non-safety-critical body electronics.
AT93C86A-10PI-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 16Kbit
- Memory Organization:
- 2K x 8, 1K x 16
- Memory Interface:
- 3-Wire Serial
- Clock Frequency:
- 2 MHz
- Write Cycle Time - Word, Page:
- 10ms
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
AT93C86A-10PI-2.7 FAQ
1.How can I place an order for AT93C86A-10PI-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT93C86A-10PI-2.7 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 AT93C86A-10PI-2.7 reliable?
The price and inventory of AT93C86A-10PI-2.7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT93C86A-10PI-2.7 is usually 5 days.
3.What payment methods are accepted for AT93C86A-10PI-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT93C86A-10PI-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT93C86A-10PI-2.7?
AT93C86A-10PI-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT93C86A-10PI-2.7 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 AT93C86A-10PI-2.7?
For technical support, including AT93C86A-10PI-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT93C86A-10PI-2.7 requirements.
6.How does Aetrix verify that AT93C86A-10PI-2.7 is sourced from the original manufacturer or authorized distributors?
All AT93C86A-10PI-2.7 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 AT93C86A-10PI-2.7 meets industry standards.
7.What is the process for return or replacement of AT93C86A-10PI-2.7?
All AT93C86A-10PI-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT93C86A-10PI-2.7, 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 AT93C86A-10PI-2.7 part is unused and in its original packaging.
Return procedure for AT93C86A-10PI-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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