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Home > Products > Integrated Circuits (ICs) > Memory > Memory

Microchip Technology AT93C86AY6-10YH-1.8-T

Name: AT93C86AY6-10YH-1.8-T
Brand: Microchip Technology
SKU: AT93C86AY6-10YH-1.8-T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AT93C86AY6-10YH-1.8-T

Manufacturer:: Microchip Technology

Category:: Memory

Package:: 8-UFDFN Exposed Pad

Datasheet:: AT93C86AY6-10YH-1.8-T.pdf

Description:: IC EEPROM 16KBIT 3WIRE 8MINI MAP

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Product details

Overview

AT93C86AY6-10YH-1.8-T from Microchip Technology is a 16-Kbit three-wire serial EEPROM with user-selectable x8 (2,048 × 8) or x16 (1,024 × 16) memory organization, operating from 1.8 V to 5.5 V, rated for -40°C to +85°C, and featuring Schmitt-trigger inputs for noise immunity in industrial control and embedded configuration storage.

For engineers reviewing the AT93C86AY6-10YH-1.8-T datasheet, AT93C86AY6-10YH-1.8-T pinout, AT93C86AY6-10YH-1.8-T application, or AT93C86AY6-10YH-1.8-T equivalent, this page delivers verified electrical specs, validated pin functions, confirmed industrial-grade temperature behavior, and real-world use cases for nonvolatile parameter storage in space-constrained systems.

Technical Context

The AT93C86AY6-10YH-1.8-T implements a synchronous three-wire interface (CS/SK/DI/DO) with ORG pin-controlled memory mapping, supporting sequential read and self-timed write cycles up to 10 ms. Its internal architecture includes a power-on reset generator, high-voltage charge pump, and address register with automatic incrementing during read bursts.

It uses Schmitt-triggered inputs with filtered noise suppression, supports clock rates up to 2 MHz at 5 V (250 kHz at 1.8 V), and maintains data integrity via 1,000,000 write cycles and 100-year retention at 55°C - all within a single-supply 1.8–5.5 V operating range.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Size	16 Kbit (2,048 × 8 or 1,024 × 16), selectable via ORG pin - enables flexible byte- or word-oriented firmware storage.
Supply Voltage Range	1.8 V to 5.5 V - supports direct interfacing with low-power microcontrollers and battery-backed systems without level-shifting.
Operating Temperature	-40°C to +85°C - qualified for industrial environments including motor drives, PLCs, and automotive body electronics.
Write Endurance	1,000,000 cycles - ensures reliable field updates of calibration data, device IDs, or runtime configuration over product lifetime.
Data Retention	100 years at 55°C - guarantees long-term persistence of critical settings without refresh or backup power.
Max Clock Frequency	250 kHz at 1.8 V - defines minimum SK period (4 µs), constraining maximum serial throughput in ultra-low-voltage operation.
Standby Current	0.4 µA typical at 1.8 V - minimizes quiescent power draw in always-on embedded nodes.

Pinout & Package

AT93C86AY6-10YH-1.8-T is packaged in an 8-lead SOIC (Small Outline Integrated Circuit) with 150-mil body width, RoHS-compliant lead-free finish, and JEDEC-standard footprint (3.90 mm × 4.90 mm). Pin 1 is marked by a beveled corner or notch.

Pin/Terminal	Circuit Role	Design Meaning
CS	Chip Select	Active-high enable: device enters active mode only when CS = high; DO goes high-Z when CS = low - prevents bus contention in multi-device systems.
SK	Serial Data Clock	Rising-edge synchronized I/O: latches DI on rising SK edge and clocks DO on same edge - eliminates setup/hold timing violations in synchronous master-slave links.
DI	Serial Data Input	Receives instruction opcodes, addresses, and write data; accepts logic levels compliant with 1.8 V thresholds (VIL2 ≤ 0.3×VCC, VIH2 ≥ 0.7×VCC).
DO	Serial Data Output	Drives read data and Ready/Busy status; outputs logic '1' when write/erase complete, '0' during active programming - enables polling-based firmware flow control.
GND	Ground Reference	System return path for VCC and all I/O; must be low-impedance to maintain noise margin for Schmitt-trigger inputs.
ORG	Organization Select	Configures memory map: tied to VCC → x16 mode (1,024 words); tied to GND → x8 mode (2,048 bytes); unconnected → x16 default via internal pull-up.
NC	No Connect	Pin 7 is internally unused and must remain unconnected - avoids unintended coupling or ESD paths.
VCC	Power Supply	Single supply input (1.8–5.5 V); requires local 0.1 µF decoupling capacitor placed ≤2 mm from pin to suppress switching noise during write cycles.

Key Features

Feature	Design Value
User-selectable memory organization	x8 or x16 mode via ORG pin - simplifies firmware adaptation across 8-bit and 16-bit host MCUs without hardware redesign.
Self-timed write cycle	≤10 ms max duration with no external timing control - eliminates need for write-cycle delay loops or watchdog timers in host software.
Schmitt-trigger, filtered inputs	Input hysteresis >0.5 V at 1.8 V and noise filtering - rejects EMI spikes on CS/SK/DI lines in electrically noisy industrial enclosures.
Green packaging	Lead-free, halide-free, RoHS-compliant SOIC - meets global environmental compliance requirements for commercial and industrial shipments.
Power-on reset protection	Internal POR circuit holds device in standby until VCC ≥ 1.5 V and stable for ≥100 µs - prevents spurious writes during brown-out or cold-start conditions.

Applications

Industrial Sensor Calibration Storage	Embedded System Configuration Memory
Use Scenario: Storing factory-calibrated offset/gain coefficients for analog sensor front-ends in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile parameter repository accessed during system boot and recalibration routines; supports sequential reads at 250 kHz for fast coefficient loading. Use Value: Enables field-replaceable sensor modules with unique calibration data retained across power cycles and firmware updates.	Use Scenario: Holding user-defined network settings (IP, subnet, gateway), display brightness, and language preferences in smart HVAC controllers. IC Role / Device Role / Timing Role: Configuration EEPROM interfaced to an ARM Cortex-M0+ MCU via GPIO bit-banged SPI; accessed infrequently but requires guaranteed write endurance. Use Value: Eliminates need for battery-backed SRAM while supporting >1M configuration changes over 10+ years of service life.
Motor Drive Parameter Backup	Medical Device Safety Settings
Use Scenario: Archiving torque limits, acceleration profiles, and fault recovery parameters in brushless DC motor drives. IC Role / Device Role / Timing Role: Critical safety-critical data store with 100-year retention; write operations occur only after explicit user confirmation and checksum validation. Use Value: Ensures deterministic behavior after unexpected power loss and satisfies IEC 61800-5-2 functional safety requirements for parameter persistence.	Use Scenario: Securing device ID, calibration timestamps, and regulatory compliance flags in portable diagnostic equipment. IC Role / Device Role / Timing Role: Tamper-resistant storage element with 1M write cycles; accessed during pre-use self-test and post-measurement logging. Use Value: Meets FDA 21 CFR Part 11 audit trail requirements by guaranteeing immutable record of calibration events and operator actions.

Industrial Sensor Calibration Storage

Embedded System Configuration Memory

Use Scenario: Storing factory-calibrated offset/gain coefficients for analog sensor front-ends in programmable logic controllers.

IC Role / Device Role / Timing Role: Nonvolatile parameter repository accessed during system boot and recalibration routines; supports sequential reads at 250 kHz for fast coefficient loading.

Use Value: Enables field-replaceable sensor modules with unique calibration data retained across power cycles and firmware updates.

Use Scenario: Holding user-defined network settings (IP, subnet, gateway), display brightness, and language preferences in smart HVAC controllers.

IC Role / Device Role / Timing Role: Configuration EEPROM interfaced to an ARM Cortex-M0+ MCU via GPIO bit-banged SPI; accessed infrequently but requires guaranteed write endurance.

Use Value: Eliminates need for battery-backed SRAM while supporting >1M configuration changes over 10+ years of service life.

Motor Drive Parameter Backup

Medical Device Safety Settings

Use Scenario: Archiving torque limits, acceleration profiles, and fault recovery parameters in brushless DC motor drives.

IC Role / Device Role / Timing Role: Critical safety-critical data store with 100-year retention; write operations occur only after explicit user confirmation and checksum validation.

Use Value: Ensures deterministic behavior after unexpected power loss and satisfies IEC 61800-5-2 functional safety requirements for parameter persistence.

Use Scenario: Securing device ID, calibration timestamps, and regulatory compliance flags in portable diagnostic equipment.

IC Role / Device Role / Timing Role: Tamper-resistant storage element with 1M write cycles; accessed during pre-use self-test and post-measurement logging.

Use Value: Meets FDA 21 CFR Part 11 audit trail requirements by guaranteeing immutable record of calibration events and operator actions.

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	4-wire SPI interface, 128 Kbit capacity, 2.5–5.5 V supply, no ORG pin - fixed 128 × 8 organization.	Requires SPI controller support; lacks x16 mode and 1.8 V operation - unsuitable for ultra-low-voltage or dual-mode memory mapping needs.	Select when higher density and standard SPI compatibility outweigh flexibility in voltage and organization.
25AA160CT-I/OT	3-wire Microwire-compatible interface, 16 Kbit, 1.8–5.5 V, industrial temp, but no ORG pin - fixed 2,048 × 8 organization only.	Same pin count and voltage range, but cannot configure x16 mode - limits use in 16-bit data path applications like digital potentiometer registers.	Choose when x8-only memory layout suffices and Microwire protocol alignment is preferred over Atmel legacy command set.

Compared with M95128-DRMN6TP/K and 25AA160CT-I/OT, the AT93C86AY6-10YH-1.8-T uniquely supports dual memory mapping and true 1.8 V operation with Schmitt-trigger noise immunity - making it optimal for mixed-signal industrial nodes where voltage headroom and interface flexibility are constrained.

Availability

AT93C86AY6-10YH-1.8-T is available at Aetrix Electronics and suitable for industrial sensor calibration storage, embedded system configuration memory, and motor drive parameter backup requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for AT93C86AY6-10YH-1.8-T 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 U.S.-based semiconductor company specializing in microcontrollers, analog devices, and memory products, with ISO 9001-certified manufacturing and global distribution infrastructure.

The AT93C86A family was designed for low-voltage, high-reliability nonvolatile storage in industrial and commercial systems - emphasizing robustness across wide temperature ranges, minimal power consumption, and compatibility with legacy 3-wire serial architectures.

FAQ

What is the exact memory organization supported by AT93C86AY6-10YH-1.8-T?

The AT93C86AY6-10YH-1.8-T supports two memory organizations: 2,048 × 8 bits (x8 mode) or 1,024 × 16 bits (x16 mode), selected by the ORG pin state. When ORG is tied to VCC, x16 mode activates; when tied to GND, x8 mode activates. An unconnected ORG defaults to x16 via internal pull-up. This dual-mode capability is confirmed in DS20006261A-page 6 and page 12.

Does AT93C86AY6-10YH-1.8-T support true 1.8 V operation across all specifications?

Yes, AT93C86AY6-10YH-1.8-T is fully specified for 1.8 V operation: VCC range is 1.8–5.5 V (DS20006261A-page 8), standby current is 0.4 µA typical at 1.8 V (Table 4-2), and AC timing supports 250 kHz clock rate at 1.8 V (Table 4-3). The "1.8" in the part number explicitly denotes low-voltage grade qualification.

How does the Ready/Busy status function on AT93C86AY6-10YH-1.8-T during write cycles?

During a write or erase cycle, the AT93C86AY6-10YH-1.8-T outputs Ready/Busy status on the DO pin: logic '0' indicates ongoing programming, logic '1' indicates completion. This requires holding CS low for ≥tCS (1 µs min at 1.8 V), then bringing CS high to sample DO - as defined in Figures 5-4 through 5-7 and DS20006261A-page 14.

What package type is used for AT93C86AY6-10YH-1.8-T, and what are its key mechanical dimensions?

AT93C86AY6-10YH-1.8-T uses an 8-lead SOIC package (Microchip drawing C04-057-SN), with 3.90 mm body width, 4.90 mm length, 1.25–1.75 mm height, and 1.27 mm pitch. The "Y6" in the part number designates SOIC; marking includes "86A", year/week code, and "H" for industrial grade - per DS20006261A-page 17.

Is AT93C86AY6-10YH-1.8-T compatible with standard SPI interfaces?

No, AT93C86AY6-10YH-1.8-T uses a proprietary three-wire serial interface (CS/SK/DI/DO) distinct from SPI: it lacks dedicated MOSI/MISO lines and requires specific command sequences (e.g., EWEN before WRITE). While bit-banged GPIO can emulate the protocol, hardware SPI peripherals cannot directly drive it without translation logic - confirmed in Section 5 and Figure 5-1 of DS20006261A.

AT93C86AY6-10YH-1.8-T Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

Package/Case:: 8-UFDFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

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-Mini Map (2x3)

AT93C86AY6-10YH-1.8-T FAQ

1.How can I place an order for AT93C86AY6-10YH-1.8-T through Aetrix?

Please submit a Request for Quotation (RFQ) for AT93C86AY6-10YH-1.8-T 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 AT93C86AY6-10YH-1.8-T reliable?

The price and inventory of AT93C86AY6-10YH-1.8-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT93C86AY6-10YH-1.8-T is usually 5 days.

3.What payment methods are accepted for AT93C86AY6-10YH-1.8-T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT93C86AY6-10YH-1.8-T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AT93C86AY6-10YH-1.8-T?

AT93C86AY6-10YH-1.8-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AT93C86AY6-10YH-1.8-T 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 AT93C86AY6-10YH-1.8-T?

For technical support, including AT93C86AY6-10YH-1.8-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT93C86AY6-10YH-1.8-T requirements.

6.How does Aetrix verify that AT93C86AY6-10YH-1.8-T is sourced from the original manufacturer or authorized distributors?

All AT93C86AY6-10YH-1.8-T 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 AT93C86AY6-10YH-1.8-T meets industry standards.

7.What is the process for return or replacement of AT93C86AY6-10YH-1.8-T?

All AT93C86AY6-10YH-1.8-T units undergo pre-shipment inspection (PSI). If there is an issue with AT93C86AY6-10YH-1.8-T, 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 AT93C86AY6-10YH-1.8-T part is unused and in its original packaging.

Return procedure for AT93C86AY6-10YH-1.8-T:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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