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Microchip Technology 93LC86CT-I/SN15KVAO
- Part No.:
- 93LC86CT-I/SN15KVAO
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
93LC86CT-I/SN15KVAO.pdf
- Description:
- IC EEPROM 16KBIT MICROWIRE 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,184
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Product details
Overview
93LC86CT-I/SN15KVAO from Microchip Technology Inc. is a 16 Kbit Microwire-compatible serial EEPROM with configurable 8-/16-bit word organization, 2.5–5.5 V supply range, industrial temperature grade (–40°C to +85°C), and SOIC-8 package. It features Program Enable (PE) and ORG pins for write protection and memory configuration, supporting embedded systems requiring nonvolatile parameter storage in space-constrained designs.
For engineers reviewing the 93LC86CT-I/SN15KVAO datasheet, 93LC86CT-I/SN15KVAO pinout, 93LC86CT-I/SN15KVAO application, or 93LC86CT-I/SN15KVAO equivalent, key selection criteria include its dual-word-size flexibility via ORG pin, self-timed erase/write cycles (5 ms typical), 1 million endurance cycles, 200-year data retention, and compatibility with low-power microcontroller interfaces using 3-wire Microwire protocol.
Technical Context
The 93LC86CT-I/SN15KVAO implements a synchronous 3-wire Microwire interface with CS, CLK, and DI/DO lines, where instruction execution begins on detection of a Start condition (CS high + DI high at CLK rising edge). Its internal logic supports x8 or x16 organization selected by the ORG pin voltage level, and requires PE = VCC to enable programming.
Write operations are protected by an Erase/Write Enable (EWEN) command that must precede ERASE or WRITE; after completion, EWDS disables further writes. Ready/Busy status is signaled via DO pin during self-timed erase/write cycles, with TWC = 5 ms (typical) and automatic ERAL before WRAL when VCC ≥ 4.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 16 Kbit (2048 × 8 or 1024 × 16, selectable via ORG pin) |
| VCC operating range | 2.5 V to 5.5 V - supports direct interfacing with 3.3 V and 5 V microcontrollers without level shifting |
| Endurance | 1,000,000 erase/write cycles - enables frequent calibration or logging updates in field-deployed devices |
| Data retention | 200 years at 25°C - ensures long-term reliability for firmware configuration storage |
| Write cycle time | 5 ms typical (TWC) - defines minimum interval between successive write commands |
| Max clock frequency | 3 MHz at VCC ≥ 4.5 V - sets upper limit for serial transaction throughput in host MCU firmware |
| Temperature grade | Industrial (–40°C to +85°C) - validated for operation in industrial control panels and automotive body electronics |
Pinout & Package
8-pin SOIC (SN) package with standard 150-mil width, RoHS-compliant matte tin finish, and pin 1 marked by laser dot. Pinout conforms to Microwire serial interface with dedicated PE and ORG control inputs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-high enable; device enters Standby mode when low, but completes ongoing write before sleeping |
| CLK | Serial Clock | Synchronizes all data transfers; rising edge clocks in opcode/address/data and clocks out read data/status |
| DI | Data Input | Receives Start bit, instructions, addresses, and write data; may share trace with DO if series resistor used |
| DO | Data Output / Status | Outputs read data or Ready/Busy (low = busy); enters High-Z when CS low or not reading |
| VSS | Ground | Reference for all digital and analog circuitry; must be low-impedance connection to minimize noise coupling |
| ORG | Organization select | High = 1024 × 16-bit mode; low = 2048 × 8-bit mode; must be hard-wired, not floated |
| PE | Program Enable | High = write enabled; low = entire array write-protected; required high before last data bit of WRITE/WRAL |
| VCC | Power supply | 2.5–5.5 V input; internal POR triggers at ~1.5 V; must remain stable during erase/write cycles |
Key Features
| Feature | Design Value |
|---|---|
| Configurable word size (x8/x16) | Reduces firmware complexity by matching host MCU data bus width without external glue logic |
| Self-timed erase/write with auto-erase | Eliminates need for host MCU to manage timing margins; simplifies driver code and improves reliability |
| Program Enable (PE) pin | Hardware-level write protection independent of software state - prevents corruption during brown-out or reset |
| Ready/Busy status on DO | Enables polling-based write completion detection without requiring interrupt or timer resources on host MCU |
| Automatic ERAL before WRAL | Guarantees full-array readiness for bulk write; removes requirement for separate ERAL command in initialization sequences |
Applications
| Industrial Sensor Calibration | Automotive Body Control Module |
|---|---|
Use Scenario: Storing factory-trimmed sensor offset/gain coefficients and user-adjusted calibration values in programmable sensors. IC Role / Device Role / Timing Role: Nonvolatile configuration register accessed during power-up and runtime re-calibration sequences. Use Value: Enables field-updatable calibration without requiring MCU flash reprogramming; 200-year retention ensures accuracy over product lifetime. | Use Scenario: Holding seat position memory, mirror angle presets, and lighting configuration profiles in vehicle door modules. IC Role / Device Role / Timing Role: Microwire-configured parameter store interfaced directly to 8-bit automotive MCU with minimal GPIO usage. Use Value: Dual-word organization allows efficient storage of 16-bit motor position values while maintaining backward compatibility with legacy 8-bit firmware. |
| Medical Infusion Pump Settings | Smart Energy Meter Firmware Parameters |
Use Scenario: Securing drug library limits, alarm thresholds, and clinician-accessible safety parameters subject to regulatory audit. IC Role / Device Role / Timing Role: Write-protected configuration vault where PE pin ties to system security controller output. Use Value: Hardware-enforced write protection (PE = low) prevents unauthorized modification during service or maintenance. | Use Scenario: Storing tariff schedules, CT/PT ratios, and communication protocol settings updated remotely via PLC or RF link. IC Role / Device Role / Timing Role: Low-power serial EEPROM accessed during meter boot and periodic configuration sync windows. Use Value: 2.5 V min VCC enables direct connection to energy-harvesting power rails; 1M endurance supports daily firmware parameter updates over 27 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 93LC86C-I/SN | No temperature grade suffix in part number; identical electrical specs and pinout; same SOIC-8 package | Same industrial temp range (–40°C to +85°C); no functional difference from 93LC86CT-I/SN15KVAO | Select when full traceability code (15KVAO) is not required for BOM or quality tracking |
| AT25160B-MAHL-T | SPI interface (4-wire), 16 Kbit, 1.8–5.5 V, 2 MHz max clock, no ORG/PE pins | Lacks hardware word-size selection and dedicated write-enable pin; relies on software command protection | Choose for SPI-native systems where pin count permits extra CS line and firmware handles protection logic |
Compared with 93LC86C-I/SN, the 93LC86CT-I/SN15KVAO provides full lot traceability (15KVAO) and guaranteed industrial-grade screening; versus AT25160B-MAHL-T, it offers hardware-configurable word size and physical write-enable - critical for safety-critical or legacy Microwire designs.
Availability
93LC86CT-I/SN15KVAO is available at Aetrix Electronics and suitable for industrial sensor calibration, automotive body control modules, and medical infusion pump settings requiring stable component supply across extended production lifecycles.
Supply support for 93LC86CT-I/SN15KVAO 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 Inc. is a leading provider of microcontrollers, analog components, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 93LC86C family was designed specifically for cost-sensitive, low-power embedded systems needing reliable serial nonvolatile storage with flexible memory organization and robust hardware write protection.
FAQ
What is the function of the ORG pin on the 93LC86CT-I/SN15KVAO?
The ORG pin on the 93LC86CT-I/SN15KVAO selects memory organization: tied to VCC for 1024 × 16-bit mode, or to VSS for 2048 × 8-bit mode. This hardware-selectable configuration eliminates firmware overhead for data alignment and enables optimal use of MCU data bus width. The 93LC86CT-I/SN15KVAO requires ORG to be hard-wired - floating is not permitted.
How does the Program Enable (PE) pin protect memory on the 93LC86CT-I/SN15KVAO?
The PE pin on the 93LC86CT-I/SN15KVAO acts as a hardware gate for all write operations: only when PE = VCC can ERASE, WRITE, or WRAL commands execute. If PE = VSS, the entire memory array is write-protected regardless of EWEN/EWDS state. This provides fail-safe protection against corruption during power transients or software faults - a key requirement in the 93LC86CT-I/SN15KVAO's target applications.
What is the maximum clock frequency supported by the 93LC86CT-I/SN15KVAO?
The 93LC86CT-I/SN15KVAO supports up to 3 MHz clock frequency when VCC is 4.5 V to 5.5 V, 2 MHz at 2.5 V to 4.5 V, and 1 MHz at 1.8 V to 2.5 V (though 93LC86CT-I/SN15KVAO's minimum VCC is 2.5 V). These AC specifications are fully characterized across the industrial temperature range and define the maximum sustainable serial transaction rate for the 93LC86CT-I/SN15KVAO in real-world designs.
Does the 93LC86CT-I/SN15KVAO require an external pull-up resistor on the DO pin?
No, the 93LC86CT-I/SN15KVAO does not require an external pull-up on DO. The DO pin actively drives high/low during READ or Ready/Busy status reporting and enters High-Z when inactive. However, if DI and DO are shorted (common-bus configuration), a series resistor (e.g., 10 kΩ) is recommended to prevent bus conflict during the dummy-zero phase of READ - a design consideration explicitly noted in the 93LC86CT-I/SN15KVAO datasheet.
What is the purpose of the "15KVAO" suffix in the 93LC86CT-I/SN15KVAO part number?
The "15KVAO" suffix in 93LC86CT-I/SN15KVAO is Microchip's alphanumeric traceability code indicating manufacturing lot, week/year, and process variant. "15" = year 2015, "KV" = internal lot identifier, "AO" = package and test revision. This enables full traceability for quality audits and failure analysis - a distinguishing feature versus base-number variants like 93LC86C-I/SN.
93LC86CT-I/SN15KVAO 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:
- Microwire
- Clock Frequency:
- 2 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- -
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
93LC86CT-I/SN15KVAO FAQ
1.How can I place an order for 93LC86CT-I/SN15KVAO through Aetrix?
Please submit a Request for Quotation (RFQ) for 93LC86CT-I/SN15KVAO 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 93LC86CT-I/SN15KVAO reliable?
The price and inventory of 93LC86CT-I/SN15KVAO are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 93LC86CT-I/SN15KVAO is usually 5 days.
3.What payment methods are accepted for 93LC86CT-I/SN15KVAO?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 93LC86CT-I/SN15KVAO transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 93LC86CT-I/SN15KVAO?
93LC86CT-I/SN15KVAO orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 93LC86CT-I/SN15KVAO 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 93LC86CT-I/SN15KVAO?
For technical support, including 93LC86CT-I/SN15KVAO datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 93LC86CT-I/SN15KVAO requirements.
6.How does Aetrix verify that 93LC86CT-I/SN15KVAO is sourced from the original manufacturer or authorized distributors?
All 93LC86CT-I/SN15KVAO 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 93LC86CT-I/SN15KVAO meets industry standards.
7.What is the process for return or replacement of 93LC86CT-I/SN15KVAO?
All 93LC86CT-I/SN15KVAO units undergo pre-shipment inspection (PSI). If there is an issue with 93LC86CT-I/SN15KVAO, 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 93LC86CT-I/SN15KVAO part is unused and in its original packaging.
Return procedure for 93LC86CT-I/SN15KVAO:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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