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Microchip Technology AT93C86A-10TI-1.8
- Part No.:
- AT93C86A-10TI-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AT93C86A-10TI-1.8.pdf
- Description:
- IC EEPROM 16KBIT 3-WIRE 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,916
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Product details
Overview
AT93C86A-10TI-1.8 from Microchip Technology (formerly Atmel) is a 16-kbit serial EEPROM with user-selectable 2048 × 8 or 1024 × 16 organization, 1.8V–5.5V supply operation, 3-wire SPI-compatible interface, and automotive-grade industrial temperature range (−40°C to +85°C). It delivers 1 million write cycles, 100-year data retention, and Schmitt-triggered noise-immune inputs for embedded control and sensor calibration storage.
For engineers reviewing the AT93C86A-10TI-1.8 datasheet, AT93C86A-10TI-1.8 pinout, AT93C86A-10TI-1.8 application, or AT93C86A-10TI-1.8 equivalent, key selection criteria include low-voltage 1.8V operation, TSSOP-8 package compatibility, self-timed 10 ms write cycle, ORG-pin configurable memory width, and qualification for industrial and automotive systems requiring long-term nonvolatile parameter storage.
Technical Context
The AT93C86A-10TI-1.8 implements a synchronous 3-wire serial interface (CS, SK, DI/DO) with instruction-based command set including READ, WRITE, ERASE, EWEN, EWDS, ERAL, and WRAL. Memory organization is dynamically selected via the ORG pin: tied to VCC enables 1024 × 16 mode; grounded enables 2048 × 8 mode.
It features on-chip clock generation, READY/BUSY status reporting via DO during write/erase, and automatic address incrementing for sequential read. The device operates without external erase cycles and supports high-impedance DO output when CS is inactive, minimizing bus contention in multi-device systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 kbit (2048 × 8 or 1024 × 16), enabling flexible byte- or word-oriented configuration storage |
| Supply Voltage Range | 1.8V to 5.5V - supports direct interfacing with 1.8V logic and mixed-voltage systems |
| Write Cycle Time | Max 10 ms - enables deterministic firmware timeout handling without polling overhead |
| Endurance | 1 million write cycles - suitable for frequent calibration or runtime parameter updates |
| Data Retention | 100 years at 25°C - ensures long-term reliability in unattended or maintenance-free deployments |
| Interface Speed | 250 kHz min / 2 MHz max SK frequency - balances noise immunity and throughput for industrial environments |
| Operating Temperature | −40°C to +85°C - qualified for industrial control, automotive body electronics, and power management modules |
Pinout & Package
AT93C86A-10TI-1.8 is housed in an 8-lead Thin Shrink Small Outline Package (TSSOP), 3.00 mm × 4.40 mm body, 0.65 mm pitch, lead-free/halogen-free compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal; must be held low for entire instruction sequence; determines device activation window |
| SK | Serial Clock | Synchronous edge-triggered clock input; controls timing of all data transfers and internal state transitions |
| DI | Data Input | Serial command/address/data input line; accepts start bit, op code, address, and write data bits |
| DO | Data Output | Tri-state serial output; delivers read data, READY/BUSY status, or high-impedance when CS is high |
| VCC | Power Supply | Primary supply rail; powers internal logic, memory array, and I/O buffers across full 1.8V–5.5V range |
| GND | Ground | Reference return path for all internal circuits and I/O signals; critical for noise suppression and stable operation |
| ORG | Organization Select | Hardware-configured memory width selector: VCC = 1024×16, GND = 2048×8; not functional on 1.8V-only variants per datasheet note |
| DC | Don't Connect | No internal connection; must remain unconnected to avoid unintended electrical loading or ESD paths |
Key Features
| Feature | Design Value |
|---|---|
| Low-Voltage Operation (1.8V) | Enables direct integration with ultra-low-power microcontrollers and battery-backed systems without level-shifting |
| Schmitt-Trigger Inputs | Provides >0.5V hysteresis on CS/SK/DI, rejecting up to 100 ns noise spikes common in motor-driven or switching-power environments |
| Self-Timed Write Cycle | Eliminates need for external timing control or busy-wait loops; DO status feedback allows precise host synchronization |
| User-Selectable Organization | Allows same BOM part to support either byte-addressable (2048×8) or word-addressable (1024×16) firmware architectures |
| Automotive-Grade Qualification | Meets AEC-Q100 stress test requirements and extended temperature operation for under-hood and chassis applications |
Applications
| Industrial Sensor Calibration | Automotive Body Control Module |
|---|---|
|
Use Scenario: Storing factory-trimmed offset/gain coefficients and temperature compensation tables for pressure, temperature, and current sensors. IC Role / Device Role / Timing Role: Nonvolatile configuration register providing persistent parameter storage accessible during power-up initialization. Use Value: Enables zero-touch calibration across production batches and eliminates manual trim potentiometers, reducing assembly cost and drift over time. |
Use Scenario: Retaining seat position memory, mirror angle settings, and lighting preferences in vehicle door modules. IC Role / Device Role / Timing Role: Parameter backup storage synchronized with ignition-off events and restored at next power-on. Use Value: Delivers user-experience continuity without requiring constant battery drain or complex supercapacitor backup circuitry. |
| Medical Device Configuration | Smart Energy Meter Firmware Patch Storage |
|
Use Scenario: Holding regulatory-compliant operational limits, patient-specific therapy parameters, and audit log metadata in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, tamper-resistant configuration vault accessed only during validated service mode. Use Value: Supports FDA 21 CFR Part 11 compliance by guaranteeing write-integrity and long-term traceability of clinical settings. |
Use Scenario: Storing field-upgradable firmware patches and tariff schedule tables in utility-grade electricity meters operating for 15+ years. IC Role / Device Role / Timing Role: Field-programmable boot image repository with atomic write verification and rollback capability. Use Value: Eliminates need for costly meter replacement during regulatory updates, enabling remote firmware lifecycle management. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95128-DRMN6TP/K | 128 kbit capacity, SPI interface (4-wire), 1.8V–5.5V, 5 ms max write time, SO8 package | Higher density and faster write, but requires dedicated SPI CS and no ORG-pin organization flexibility | Select when >16 kbit storage or standard SPI protocol compliance is required; not drop-in due to pin count and protocol divergence |
| BR24G16FJ-3GE2 | 16 kbit, I²C interface (2-wire), 1.7V–5.5V, 5 ms max write, TSSOP8, built-in write protection registers | Uses I²C addressing instead of 3-wire command stream; lacks ORG-pin configurability and sequential read auto-increment | Prefer for systems already using I²C buses and requiring hardware write-lock features; incompatible pinout and protocol |
Compared with AT93C86A-10TI-1.8, M95128-DRMN6TP/K offers greater density and faster writes but mandates 4-wire SPI and forfeits memory-width flexibility, while BR24G16FJ-3GE2 provides I²C simplicity and enhanced protection but removes ORG-based organization selection and sequential read efficiency-making AT93C86A-10TI-1.8 uniquely suited for resource-constrained 3-wire designs needing dual-mode memory mapping.
Availability
AT93C86A-10TI-1.8 is available at Aetrix Electronics and suitable for industrial sensor calibration, automotive body control modules, medical device configuration, smart energy meter firmware patch storage, and embedded system parameter retention requiring stable component supply across extended product lifecycles.
Supply support for AT93C86A-10TI-1.8 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 a focus on reliability, longevity, and embedded system integration.
The AT93C86A-10TI-1.8 belongs to Microchip's legacy Atmel serial EEPROM product line, designed specifically for low-power, low-voltage industrial and automotive applications demanding robust parameter storage with minimal board space and interface complexity.
FAQ
What is the function of the ORG pin on the AT93C86A-10TI-1.8?
The ORG pin on the AT93C86A-10TI-1.8 selects internal memory organization: connecting it to VCC configures the device as 1024 × 16 (word mode), while grounding it sets 2048 × 8 (byte mode). Per the datasheet, this feature is not available on 1.8V-only variants like the AT93C86A-10TI-1.8 - the ORG pin must be externally tied to VCC or GND for deterministic behavior, as floating is undefined.
Does the AT93C86A-10TI-1.8 support true SPI communication?
The AT93C86A-10TI-1.8 uses a 3-wire serial interface (CS, SK, DI/DO) compatible with SPI timing conventions but not fully SPI-compliant - it lacks separate SI/SO lines and relies on bidirectional DO for both status reporting and read data. It does not support SPI mode selection (CPOL/CPHA) or standard SPI opcodes, requiring custom host firmware to implement its seven-instruction command set.
What is the maximum clock frequency supported by the AT93C86A-10TI-1.8 at 1.8V?
At VCC = 1.8V, the AT93C86A-10TI-1.8 supports a maximum SK clock frequency of 250 kHz (min tSKH/tSKL = 1000 ns), as specified in the AC Characteristics table. This limit ensures reliable setup/hold timing margins and noise immunity in low-voltage operation, contrasting with its 2 MHz capability at 5V.
How is write protection implemented on the AT93C86A-10TI-1.8?
Write protection on the AT93C86A-10TI-1.8 is controlled by the EWEN/EWDS instruction sequence: an EWEN command must precede any WRITE or ERASE operation, and EWDS disables further programming until the next EWEN. There is no hardware write-protect pin; protection relies entirely on correct instruction sequencing and software discipline to prevent accidental writes.
Is the AT93C86A-10TI-1.8 pin-compatible with other AT93C86A variants?
Yes - the AT93C86A-10TI-1.8 shares identical pinout and footprint with all AT93C86A variants in TSSOP-8 (8A2) packaging, including -10TI-2.7 and -10SU-1.8. Differences are limited to voltage rating (-1.8 vs -2.7), temperature grade, and halogen-free status; electrical pin functions and mechanical dimensions remain fully consistent.
AT93C86A-10TI-1.8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- 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:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
AT93C86A-10TI-1.8 FAQ
1.How can I place an order for AT93C86A-10TI-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT93C86A-10TI-1.8 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-10TI-1.8 reliable?
The price and inventory of AT93C86A-10TI-1.8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT93C86A-10TI-1.8 is usually 5 days.
3.What payment methods are accepted for AT93C86A-10TI-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT93C86A-10TI-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT93C86A-10TI-1.8?
AT93C86A-10TI-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT93C86A-10TI-1.8 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-10TI-1.8?
For technical support, including AT93C86A-10TI-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT93C86A-10TI-1.8 requirements.
6.How does Aetrix verify that AT93C86A-10TI-1.8 is sourced from the original manufacturer or authorized distributors?
All AT93C86A-10TI-1.8 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-10TI-1.8 meets industry standards.
7.What is the process for return or replacement of AT93C86A-10TI-1.8?
All AT93C86A-10TI-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT93C86A-10TI-1.8, 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-10TI-1.8 part is unused and in its original packaging.
Return procedure for AT93C86A-10TI-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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