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Microchip Technology AT93C86-10SI-2.7
- Part No.:
- AT93C86-10SI-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT93C86-10SI-2.7.pdf
- Description:
- IC EEPROM 16KBIT 3-WIRE 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,545
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Product details
Overview
AT93C86-10SI-2.7 from Atmel (now Microchip) is a 16-kbit serial EEPROM with user-selectable 2048 × 8 or 1024 × 16 organization, 3-wire SPI-compatible interface, and low-voltage operation (2.7V–5.5V). It delivers 1 million write cycles, 100-year data retention, and Schmitt-triggered noise-immune inputs for reliable operation in industrial control panels, automotive body modules, and embedded system configuration storage.
For engineers reviewing the AT93C86-10SI-2.7 datasheet, AT93C86-10SI-2.7 pinout, AT93C86-10SI-2.7 application, or AT93C86-10SI-2.7 equivalent, key selection factors include its dual-word-width flexibility via ORG pin, self-timed 10 ms max write cycle, -40°C to +85°C industrial temperature range, JEDEC SOIC-8 package, and compatibility with 2 MHz clock at 5V.
Technical Context
The AT93C86-10SI-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 internal organization is dynamically selected by the ORG pin voltage level-ground for x8 mode, VCC for x16 mode-enabling flexible memory mapping without hardware redesign.
It features on-chip timing control for all write/erase operations, READY/BUSY status reporting via DO during CS high pulse, and built-in noise suppression through Schmitt-trigger inputs and input filtering. The device operates across 2.7V–5.5V with standby current as low as 6.0 µA at 2.7V, supporting battery-backed and low-power embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 kbit (2048 × 8 or 1024 × 16), enabling configurable byte- or word-access storage |
| Supply Voltage | 2.7V to 5.5V - supports direct integration into 3.3V and 5V logic domains without level shifters |
| Clock Frequency | Up to 2 MHz at 5V - ensures fast serial data transfer compatible with standard microcontroller SPI peripherals |
| Write Cycle Time | Max 10 ms - enables predictable firmware timeout handling and non-blocking status polling |
| Endurance | 1 million write cycles - suitable for frequent calibration or runtime parameter logging |
| Data Retention | 100 years - guarantees long-term reliability in unpowered storage applications |
| Operating Temp | -40°C to +85°C - qualified for industrial-grade deployment in harsh ambient environments |
Pinout & Package
AT93C86-10SI-2.7 is supplied in an 8-lead JEDEC SOIC package (package code 8S1), measuring 5.0 mm × 4.0 mm × 1.27 mm, with gull-wing leads and 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal; must be held low for entire instruction sequence; controls DO output impedance |
| SK | Serial Clock | Synchronous edge-triggered clock (max 2 MHz @ 5V); rising edge samples DI, falling edge outputs DO |
| DI | Data Input | Serial instruction/data input; accepts start bit, op code, address, and write data with Schmitt-trigger noise immunity |
| DO | Data Output | Tri-state serial output; provides read data or READY/BUSY status when CS is pulsed high mid-cycle |
| VCC | Power Supply | Primary supply rail (2.7–5.5V); powers internal logic, memory array, and I/O buffers |
| GND | Ground | Reference return path for all internal circuitry and I/O signals |
| ORG | Organization Select | Logic-level controlled memory width: tied to GND for 2048×8, VCC for 1024×16; unconnected defaults to x16 |
| DC | No Connect | Internally unused pin; must be left floating or connected to GND per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| User-selectable memory organization | Hardware-configurable 2048×8 or 1024×16 layout via ORG pin - eliminates need for firmware rework when changing data width requirements |
| Self-timed write cycle | Fixed 10 ms max duration with READY/BUSY status reporting - simplifies host timing design and avoids external watchdog or delay loops |
| Schmitt-trigger, filtered inputs | Immunity to slow-rising/falling or noisy signals on CS/SK/DI - improves robustness in electrically noisy industrial or automotive harness environments |
| Low standby current | 6.0 µA at 2.7V - extends battery life in always-on sensor nodes or backup power configurations |
| Extended temperature grade | Qualified from -40°C to +85°C - meets industrial control and under-hood automotive subsystem operating requirements |
Applications
| Industrial PLC Configuration Storage | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Storing calibrated sensor offsets, I/O mapping tables, and firmware revision flags in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration register providing persistent parameter storage between power cycles. Use Value: Dual organization (x8/x16) allows alignment with existing 8-bit or 16-bit MCU data buses without glue logic or software bit-packing overhead. | Use Scenario: Retaining door lock state, mirror position presets, and lighting profiles in vehicle BCMs. IC Role / Device Role / Timing Role: Serial EEPROM interfacing directly with 8-bit microcontrollers via 3-wire bus for secure, low-pin-count NVM expansion. Use Value: 100-year data retention and -40°C to +85°C operation ensure parameter persistence over full vehicle lifetime and environmental extremes. |
| Medical Device Calibration Data | Smart Energy Meter Firmware Settings |
Use Scenario: Recording factory-calibrated ADC gain/offset coefficients and user-adjusted therapeutic thresholds in portable diagnostic equipment. IC Role / Device Role / Timing Role: High-reliability nonvolatile memory storing safety-critical calibration constants accessed at boot. Use Value: 1 million write cycles support repeated recalibration during device servicing without memory wear-out concerns. | Use Scenario: Holding tariff schedules, metering constants, and communication protocol parameters in utility-grade smart meters. IC Role / Device Role / Timing Role: Low-voltage (2.7V–5.5V) serial EEPROM used for field-updatable configuration storage with tamper-resistant access control. Use Value: Schmitt-trigger inputs prevent spurious writes from EMI-induced glitches on long PCB traces or cable harnesses. |
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), 5V-only supply (4.5–5.5V), no ORG pin | Higher density but fixed 128k × 8 organization; lacks dual-width flexibility and low-voltage support | Select when >16 kbit storage is required and system operates strictly at 5V with SPI master available |
| 25AA160C-I/SN | 16 kbit, SPI interface (4-wire), 1.8–5.5V supply, no ORG pin, 5 ms max write time | Wider voltage range and faster write, but requires dedicated SI/SO pins instead of shared DI/DO; no hardware organization select | Select for ultra-low-voltage (1.8V) designs where pin count permits separate I/O lines and x8-only layout suffices |
Compared with M95128-WMN6TP and 25AA160C-I/SN, the AT93C86-10SI-2.7 uniquely offers hardware-selectable memory width, true 3-wire interface (reducing MCU pin usage), and guaranteed 2.7V operation - making it optimal for space-constrained, multi-voltage industrial controllers needing flexible data structure support.
Availability
AT93C86-10SI-2.7 is available at Aetrix Electronics and suitable for industrial automation, automotive electronics, and medical instrumentation requiring stable component supply, long-lifecycle support, and consistent JEDEC SOIC-8 packaging.
Supply support for AT93C86-10SI-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
Atmel Corporation, now part of Microchip Technology, is a semiconductor company specializing in microcontrollers, nonvolatile memory, and security ICs for embedded systems.
The AT93Cxx series was designed specifically for cost-sensitive, low-pin-count applications requiring reliable serial EEPROM with flexible organization and robust industrial-grade operation.
FAQ
What is the function of the ORG pin on the AT93C86-10SI-2.7?
The ORG pin on the AT93C86-10SI-2.7 selects internal memory organization: tied to GND for 2048 × 8 (byte mode), tied to VCC for 1024 × 16 (word mode). If left unconnected, the internal 1 MΩ pull-up defaults to x16 mode. This hardware-selectable feature allows the same AT93C86-10SI-2.7 to serve both 8-bit and 16-bit data architectures without firmware changes.
Does the AT93C86-10SI-2.7 support true SPI communication?
The AT93C86-10SI-2.7 uses a 3-wire serial interface (CS/SK/DI/DO) that is functionally compatible with SPI masters but is not a standard SPI peripheral-it lacks separate SI/SO lines and uses a shared DI/DO pin. It supports clock frequencies up to 2 MHz at 5V and requires specific instruction framing (start bit + op code + address), meaning AT93C86-10SI-2.7 firmware drivers must implement its proprietary protocol rather than generic SPI library calls.
What is the maximum write endurance and data retention for the AT93C86-10SI-2.7?
The AT93C86-10SI-2.7 guarantees 1 million write/erase cycles and 100 years of data retention under specified operating conditions (VCC = 2.7–5.5V, TA = -40°C to +85°C). These values are production-tested specifications-not typical or estimated-and apply directly to the AT93C86-10SI-2.7 in its JEDEC SOIC-8 package with industrial temperature qualification.
How does the AT93C86-10SI-2.7 indicate readiness after a write operation?
The AT93C86-10SI-2.7 reports READY/BUSY status via the DO pin: if CS is brought high for ≥250 ns after initiating a WRITE cycle, DO outputs logic '0' while programming is active and logic '1' when complete. This real-time feedback eliminates fixed delays in host firmware-ensuring the AT93C86-10SI-2.7 is ready before issuing the next command.
Is the AT93C86-10SI-2.7 pin-compatible with other AT93Cxx variants?
Yes-the AT93C86-10SI-2.7 shares identical pinout, package (8-lead JEDEC SOIC), and interface signaling with other AT93Cxx family members including AT93C46, AT93C56, and AT93C66. However, memory size and organization differ; substituting AT93C86-10SI-2.7 for smaller variants requires verifying address depth and instruction timing compliance in the host design.
AT93C86-10SI-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT93C86-10SI-2.7 FAQ
1.How can I place an order for AT93C86-10SI-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT93C86-10SI-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 AT93C86-10SI-2.7 reliable?
The price and inventory of AT93C86-10SI-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 AT93C86-10SI-2.7 is usually 5 days.
3.What payment methods are accepted for AT93C86-10SI-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT93C86-10SI-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT93C86-10SI-2.7?
AT93C86-10SI-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT93C86-10SI-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 AT93C86-10SI-2.7?
For technical support, including AT93C86-10SI-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT93C86-10SI-2.7 requirements.
6.How does Aetrix verify that AT93C86-10SI-2.7 is sourced from the original manufacturer or authorized distributors?
All AT93C86-10SI-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 AT93C86-10SI-2.7 meets industry standards.
7.What is the process for return or replacement of AT93C86-10SI-2.7?
All AT93C86-10SI-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT93C86-10SI-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 AT93C86-10SI-2.7 part is unused and in its original packaging.
Return procedure for AT93C86-10SI-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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