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Microchip Technology AT93C86A-10SU-1.8-T
- Part No.:
- AT93C86A-10SU-1.8-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT93C86A-10SU-1.8-T.pdf
- Description:
- IC EEPROM 16KBIT 3-WIRE 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:14,885
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Product details
Overview
AT93C86A-10SU-1.8-T from Microchip Technology is a 16-Kbit three-wire serial EEPROM organized as 2,048 × 8 or 1,024 × 16, operating from 1.8V to 5.5V, with industrial temperature range (−40°C to +85°C), 2 MHz max clock rate at 5V, and 1,000,000 write endurance cycles. It serves as nonvolatile configuration storage in embedded controllers, power management units, and sensor calibration modules.
For engineers reviewing the AT93C86A-10SU-1.8-T datasheet, AT93C86A-10SU-1.8-T pinout, AT93C86A-10SU-1.8-T application, or AT93C86A-10SU-1.8-T equivalent, this page delivers verified electrical specs, validated pin functions, real-world use scenarios, and two confirmed alternative parts for design-in flexibility under low-voltage, space-constrained conditions.
Technical Context
The AT93C86A-10SU-1.8-T implements a synchronous three-wire interface (CS/SK/DI/DO) with Schmitt-triggered, noise-filtered inputs and supports dual memory organization selected via the ORG pin. Its self-timed write cycle completes within 10 ms maximum and requires no pre-erase step.
It features internal power-on reset (POR) with 1.5 V threshold, 100 µs minimum command delay after stable VCC, and Ready/Busy status reporting via DO when CS is asserted post-write. The device uses a 1 MΩ internal pull-up on ORG to default to x16 mode if left unconnected.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2,048 × 8 or 1,024 × 16), user-selectable via ORG pin |
| Supply Voltage Range | 1.8 V to 5.5 V - enables direct integration with 1.8 V logic and mixed-voltage systems |
| Max Clock Frequency | 2 MHz at VCC ≥ 4.5 V - supports fast configuration reads in boot-time-critical applications |
| Write Endurance | 1,000,000 cycles - suitable for frequent calibration or runtime parameter updates |
| Data Retention | 100 years at 55°C - ensures long-term reliability in sealed industrial enclosures |
| Operating Temperature | −40°C to +85°C - qualified for automotive cabin, industrial PLC, and outdoor metering environments |
| Standby Current | 0.4 µA typical at 1.8 V - minimizes quiescent power in battery-backed systems |
Pinout & Package
AT93C86A-10SU-1.8-T is packaged in an 8-lead SOIC (Small Outline Integrated Circuit) with 150-mil body width, JEDEC MS-012AC compliant, and lead-free/RoHS-compliant finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-high enable: device responds only when CS = high; DO enters high-Z when CS = low |
| SK | Serial Data Clock | Rising-edge synchronized I/O - latches DI and clocks DO; tSKH/tSKL ≥ 1000 ns at 1.8 V |
| DI | Serial Data Input | Accepts instruction opcodes (READ/EWEN/WRITE), addresses, and data; Schmitt-triggered for noise immunity |
| DO | Serial Data Output | Outputs read data or Ready/Busy status (logic 1 = ready, 0 = busy) when CS reasserted post-write |
| GND | Ground Reference | System ground return path; required for stable VIL/VIH thresholds and POR operation |
| ORG | Organization Select | Tied to VCC → x16 mode (1,024 × 16); tied to GND → x8 mode (2,048 × 8); unconnected → x16 via 1 MΩ pull-up |
| NC | No Connect | Pin 7 is internally unused and must be left floating or grounded - no electrical function |
| VCC | Power Supply | 1.8–5.5 V input; requires monotonic ramp ≤ 0.1 V/µs and ≥ 100 µs stabilization before first command |
Key Features
| Feature | Design Value |
|---|---|
| User-selectable memory organization | x8 or x16 mode via single ORG pin - eliminates need for separate part numbers or firmware changes |
| Low-voltage operation down to 1.8 V | Validated DC/AC performance at 1.8 V - enables direct interface with ultra-low-power MCUs without level shifters |
| Schmitt-triggered, filtered inputs | Immunity to slow-rising or noisy clock/data signals - reduces external RC filtering requirements |
| Self-timed write cycle | ≤10 ms max duration with automatic completion detection - simplifies host timing control and polling logic |
| 100-year data retention | Validated at 55°C - guarantees calibration data integrity over full product lifecycle in harsh thermal environments |
| Green packaging | Lead-free, halide-free, RoHS-compliant SOIC - meets global environmental compliance without derating |
Applications
| Industrial Sensor Calibration | Embedded Power Management Unit |
|---|---|
Use Scenario: Storing factory-trimmed offset/gain coefficients and temperature compensation tables for analog front-end sensors in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding persistent calibration parameters accessed during system startup and runtime correction. Use Value: Enables field-replaceable sensor modules without recalibration; x16 mode reduces address overhead for multi-parameter storage. |
Use Scenario: Holding dynamic voltage/frequency scaling (DVFS) profiles, fault log history, and brown-out recovery settings in AC-DC SMPS controllers. IC Role / Device Role / Timing Role: Low-power configuration store accessed during power-up sequencing and fault recovery routines. Use Value: 0.4 µA standby current extends hold-up time in capacitor-backed systems; 1.8 V operation matches auxiliary rail voltages. |
| Consumer Audio Device Settings | Automotive Body Control Module |
Use Scenario: Saving user preferences (EQ presets, volume levels, input source mapping) across power cycles in smart speakers and soundbars. IC Role / Device Role / Timing Role: Serial configuration memory interfaced directly to audio SoC's GPIO-controlled SPI-like bus. Use Value: 2 MHz clock support enables fast boot-time load of full audio profile; green package aligns with consumer eco-labeling. |
Use Scenario: Storing door lock actuator calibration, mirror position memory, and lighting dimming curves in vehicle body domain controllers. IC Role / Device Role / Timing Role: Robust nonvolatile storage for safety-critical configuration data requiring AEC-Q200-aligned reliability. Use Value: −40°C to +85°C rating and 1M-cycle endurance meet automotive reprogramming frequency requirements over 15-year service 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 (16K × 8), SPI interface, 5 MHz max clock, 2.5–5.5 V supply | Higher density and faster interface, but requires SPI master and lacks ORG-selectable x16 mode | Select when >16 Kbit capacity or SPI-native host interface is required; not drop-in due to protocol and pinout mismatch |
| 25AA160CT-I/ST | 16 Kbit, SPI interface, 10 MHz max clock, 1.8–5.5 V, 1 M write cycles, same temp range | Identical density and voltage range, but SPI-only (no ORG pin), different pinout (SOIC-8 with different pin assignment) | Choose for SPI-based designs needing identical density and voltage; requires PCB layout change and firmware adaptation |
Compared with M95128-WMN6TP and 25AA160CT-I/ST, the AT93C86A-10SU-1.8-T uniquely supports hardware-selectable x8/x16 organization and three-wire interface - reducing MCU GPIO count and enabling flexible memory mapping without software overhead.
Availability
AT93C86A-10SU-1.8-T is available at Aetrix Electronics and suitable for industrial sensor calibration, embedded power management units, and automotive body control modules requiring stable component supply, long-lifecycle support, and RoHS-compliant sourcing.
Supply support for AT93C86A-10SU-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 solutions, with ISO 9001-certified manufacturing and global distribution.
The AT93C86A-10SU-1.8-T belongs to Microchip's legacy Atmel serial EEPROM product line, designed specifically for low-voltage, space-constrained embedded systems requiring reliable nonvolatile storage with minimal interface complexity.
FAQ
What is the correct power-up sequence for AT93C86A-10SU-1.8-T?
The AT93C86A-10SU-1.8-T requires a monotonic VCC ramp ≤ 0.1 V/µs, followed by ≥100 µs stabilization before issuing the first command. The internal POR circuit activates at ~1.5 V, and the device remains unresponsive until VCC exceeds the minimum operating voltage (1.8 V) and tPUP elapses. This ensures reliable initialization without spurious writes.
How does the ORG pin affect memory addressing in AT93C86A-10SU-1.8-T?
In AT93C86A-10SU-1.8-T, the ORG pin selects memory organization: tied to VCC → 1,024 × 16 (x16 mode, 10-bit address); tied to GND → 2,048 × 8 (x8 mode, 11-bit address). If left unconnected, the internal 1 MΩ pull-up defaults to x16 mode. Address bits A10–A0 or A9–A0 are used accordingly per mode, as defined in Table 5-2 of the datasheet.
Can AT93C86A-10SU-1.8-T be used with a 1.8 V microcontroller GPIO without level shifting?
Yes - AT93C86A-10SU-1.8-T is fully specified for 1.8 V operation, including VIH2 ≥ 0.7×VCC and VIL2 ≤ 0.3×VCC, ensuring compatible logic thresholds with 1.8 V MCUs. Its Schmitt-triggered inputs further tolerate slow edges, eliminating need for external level shifters in most direct-connect implementations.
What is the maximum write cycle time for AT93C86A-10SU-1.8-T, and how is completion detected?
The maximum write cycle time for AT93C86A-10SU-1.8-T is 10 ms across the full 1.8–5.5 V range. Completion is detected by asserting CS high after the WRITE command and sampling DO: logic '1' indicates readiness, logic '0' indicates ongoing programming. This Ready/Busy status is valid only if CS is reasserted after ≥tCS (1000 ns at 1.8 V).
Does AT93C86A-10SU-1.8-T support sequential read, and what is its timing behavior?
Yes - AT93C86A-10SU-1.8-T supports sequential read: after the initial READ command, holding CS high causes automatic address increment and continuous data output on DO, synchronized to SK rising edges. No dummy bit is inserted between words, enabling efficient bulk reads. The first output byte includes a leading dummy '0', per Figure 5-1.
AT93C86A-10SU-1.8-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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-SOIC
AT93C86A-10SU-1.8-T FAQ
1.How can I place an order for AT93C86A-10SU-1.8-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT93C86A-10SU-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 AT93C86A-10SU-1.8-T reliable?
The price and inventory of AT93C86A-10SU-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 AT93C86A-10SU-1.8-T is usually 5 days.
3.What payment methods are accepted for AT93C86A-10SU-1.8-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT93C86A-10SU-1.8-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT93C86A-10SU-1.8-T?
AT93C86A-10SU-1.8-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT93C86A-10SU-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 AT93C86A-10SU-1.8-T?
For technical support, including AT93C86A-10SU-1.8-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT93C86A-10SU-1.8-T requirements.
6.How does Aetrix verify that AT93C86A-10SU-1.8-T is sourced from the original manufacturer or authorized distributors?
All AT93C86A-10SU-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 AT93C86A-10SU-1.8-T meets industry standards.
7.What is the process for return or replacement of AT93C86A-10SU-1.8-T?
All AT93C86A-10SU-1.8-T units undergo pre-shipment inspection (PSI). If there is an issue with AT93C86A-10SU-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 AT93C86A-10SU-1.8-T part is unused and in its original packaging.
Return procedure for AT93C86A-10SU-1.8-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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