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Microchip Technology AT93C86A-10PI-1.8
- Part No.:
- AT93C86A-10PI-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
AT93C86A-10PI-1.8.pdf
- Description:
- IC EEPROM 16KBIT 3-WIRE 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,641
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Product details
Overview
AT93C86A-10PI-1.8 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, and 1.8V to 5.5V supply operation. It features Schmitt-trigger inputs for noise immunity, self-timed 10 ms max write cycle, and automotive-grade reliability with 1 million write cycles and 100-year data retention. Used in industrial control panels for parameter storage and calibration data backup.
For engineers reviewing the AT93C86A-10PI-1.8 datasheet, AT93C86A-10PI-1.8 pinout, AT93C86A-10PI-1.8 application, or AT93C86A-10PI-1.8 equivalent, key selection criteria include low-voltage 1.8V operation, PDIP-8 package compatibility, ORG-pin configurable memory width, and guaranteed endurance under extended temperature (−40°C to +85°C).
Technical Context
The AT93C86A-10PI-1.8 implements a synchronous 3-wire serial interface (CS/SK/DI/DO) with instruction-set–driven operation including READ, WRITE, ERASE, EWEN, and EWDS. Memory organization is dynamically selected via the ORG pin: tied to VCC enables 1024 × 16 mode; tied to GND enables 2048 × 8 mode.
It supports sequential read with automatic address increment and READY/BUSY status reporting via DO during write/erase operations. All programming instructions require prior EWEN execution, and the device powers up in EWDS state for data integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 kbit (2048 × 8 or 1024 × 16), enabling flexible byte- or word-oriented firmware configuration storage |
| Supply Voltage Range | 1.8V to 5.5V - supports direct integration into 1.8V logic systems 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 tables with daily writes over 27 years |
| Data Retention | 100 years at 25°C - ensures long-term validity of stored device identity or security keys |
| Operating Temperature | −40°C to +85°C - qualified for industrial automation and automotive body-control modules |
| Clock Frequency | 250 kHz min / 2 MHz max at 5V - compatible with standard microcontroller SPI peripherals at multiple speeds |
Pinout & Package
AT93C86A-10PI-1.8 is housed in an 8-lead PDIP (0.300" wide) package per JEDEC MS-001 BA, with through-hole mounting and 2.54 mm lead pitch. Pin 1 is marked by notch or dot; pin 1 corner is bottom-left in top view.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable: must be low for instruction latching and data transfer; high disables DO output |
| SK | Serial Clock | Synchronous edge-triggered clock input; rising edge samples DI, falling edge outputs DO |
| DI | Data Input | Serial instruction/address/data input with Schmitt-trigger input for robust noise immunity |
| DO | Data Output | Open-drain–compatible serial output; reports READY/BUSY status when CS transitions high mid-cycle |
| VCC | Power Supply | 1.8V–5.5V core supply; powers internal logic, memory array, and I/O buffers |
| GND | Ground | Reference return path for all signals and supply current |
| ORG | Organization Select | Logic-high = 1024 × 16 mode; logic-low = 2048 × 8 mode; unconnected defaults to x16 on 2.7V parts only (not applicable to -1.8 variant) |
| DC | Don't Connect | No internal connection; must remain floating or tied to GND/VCC per layout guidelines to avoid leakage paths |
Key Features
| Feature | Design Value |
|---|---|
| User-selectable memory organization | Hardware-configurable 2048 × 8 or 1024 × 16 layout eliminates need for software bit-packing in host firmware |
| Self-timed write cycle | Internal timing eliminates external wait-state management; host reads DO status to determine completion |
| Schmitt-trigger, filtered inputs | Immunity to slow-rising or noisy control lines in electrically harsh industrial environments |
| EWEN/EWDS instruction security | Explicit enable/disable sequence prevents accidental overwrites during power transients or firmware faults |
| 1.8V–5.5V operation | Single-supply compatibility across legacy 5V, modern 3.3V, and ultra-low-power 1.8V microcontroller platforms |
Applications
| Industrial PLC Configuration Storage | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Storing I/O mapping, scaling coefficients, and alarm thresholds in programmable logic controllers deployed in factory-floor environments. IC Role / Device Role / Timing Role: Nonvolatile parameter register providing persistent configuration between power cycles and firmware updates. Use Value: 100-year data retention ensures calibration remains valid across equipment lifetime without periodic reprogramming. | Use Scenario: Holding door lock actuator timing profiles, window auto-reverse thresholds, and mirror position presets in automotive BCMs. IC Role / Device Role / Timing Role: Dedicated configuration memory accessed during boot and runtime via microcontroller SPI interface. Use Value: 1 million write cycles support daily recalibration during vehicle service without wear-out risk. |
| Medical Infusion Pump Calibration | Smart Energy Meter Firmware Patch Storage |
Use Scenario: Storing flow-rate calibration constants, sensor offset corrections, and safety limit values in Class II medical infusion pumps. IC Role / Device Role / Timing Role: Secure, tamper-resistant memory for critical operational parameters validated during pre-use self-test. Use Value: −40°C to +85°C rating ensures reliable operation inside sealed pump enclosures exposed to ambient temperature swings. | Use Scenario: Storing delta patches for firmware upgrades in utility-grade smart meters operating in outdoor meter cabinets. IC Role / Device Role / Timing Role: Secondary code storage enabling atomic patch application without full flash reprogramming. Use Value: 1.8V operation allows direct interface with low-power meter SoCs, reducing BOM count and power conversion losses. |
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 bus (4-wire), 2.5–5.5V supply, no ORG pin - fixed 16K × 8 organization | Larger memory size suits multi-parameter logging; lacks hardware organization flexibility | Select when higher density and standard SPI protocol are prioritized over voltage scalability and dual-width support |
| 25AA160A-I/P | 16 kbit, SPI interface, 1.8–5.5V, but uses standard SPI opcodes (no EWEN/EWDS); no ORG pin - fixed 2K × 8 | Compatible with generic SPI drivers; lacks organization select and explicit write-enable security | Choose for simplified firmware integration where hardware-level write protection is managed externally |
Compared with M95128-WMN6TP and 25AA160A-I/P, the AT93C86A-10PI-1.8 uniquely offers hardware-selectable memory width and dedicated erase/write enable/disable instructions - critical for safety-critical or field-serviceable systems requiring deterministic configuration control.
Availability
AT93C86A-10PI-1.8 is available at Aetrix Electronics and suitable for industrial PLCs, automotive body control modules, and medical infusion pumps requiring stable component supply, long-lifecycle assurance, and traceable sourcing.
Supply support for AT93C86A-10PI-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 for industrial, automotive, and consumer markets.
The AT93C86A series belongs to Microchip's legacy serial EEPROM product line, designed specifically for space-constrained, low-power embedded systems requiring robust, pin-efficient configuration storage with hardware-level data protection.
FAQ
What is the maximum clock frequency supported by AT93C86A-10PI-1.8 at 1.8V?
The AT93C86A-10PI-1.8 supports a maximum SK clock frequency of 0.25 MHz at 1.8V, as specified in the AC Characteristics table. This ensures reliable timing margin for microcontrollers operating at lower core voltages while maintaining signal integrity on PCB traces.
Can AT93C86A-10PI-1.8 operate in 1024 × 16 mode when powered at 1.8V?
Yes - the ORG pin determines memory organization independently of supply voltage. When ORG is tied to VCC (1.8V), the AT93C86A-10PI-1.8 operates in 1024 × 16 mode. The datasheet explicitly confirms ORG functionality applies to both 1.8V and 2.7V variants.
Does AT93C86A-10PI-1.8 require an external pull-up resistor on the DO pin?
Yes - the DO pin is open-drain and requires an external pull-up resistor (typically 4.7 kΩ to VCC) to ensure valid logic-high levels during read operations and READY/BUSY status reporting. This is confirmed in the functional description and timing diagrams.
What is the standby current consumption of AT93C86A-10PI-1.8 at 1.8V?
At VCC = 1.8V and CS = 0V, the AT93C86A-10PI-1.8 draws a maximum standby current (ISB1) of 0.1 µA. This ultra-low quiescent draw supports battery-backed applications such as energy meters and portable medical devices.
Is AT93C86A-10PI-1.8 RoHS-compliant and halogen-free?
Yes - the AT93C86A-10PI-1.8 is manufactured as a lead-free/halogen-free device per the ordering information table, meeting RoHS Directive 2011/65/EU and JEDEC J-STD-609A standards for green packaging.
AT93C86A-10PI-1.8 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:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
AT93C86A-10PI-1.8 FAQ
1.How can I place an order for AT93C86A-10PI-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT93C86A-10PI-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-10PI-1.8 reliable?
The price and inventory of AT93C86A-10PI-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-10PI-1.8 is usually 5 days.
3.What payment methods are accepted for AT93C86A-10PI-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT93C86A-10PI-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT93C86A-10PI-1.8?
AT93C86A-10PI-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT93C86A-10PI-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-10PI-1.8?
For technical support, including AT93C86A-10PI-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT93C86A-10PI-1.8 requirements.
6.How does Aetrix verify that AT93C86A-10PI-1.8 is sourced from the original manufacturer or authorized distributors?
All AT93C86A-10PI-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-10PI-1.8 meets industry standards.
7.What is the process for return or replacement of AT93C86A-10PI-1.8?
All AT93C86A-10PI-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT93C86A-10PI-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-10PI-1.8 part is unused and in its original packaging.
Return procedure for AT93C86A-10PI-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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