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Microchip Technology 93LC86CT-E/MNY
- Part No.:
- 93LC86CT-E/MNY
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
93LC86CT-E/MNY.pdf
- Description:
- IC EEPROM 16KBIT MICROWIRE 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,270
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Product details
Overview
93LC86CT-E/MNY from Microchip Technology Inc. is a 16 Kbit Microwire-compatible serial EEPROM with configurable 8-/16-bit organization via the ORG pin, 2.5–5.5 V supply range, industrial and automotive temperature support (−40°C to +125°C), and 1 million erase/write cycles. It serves as nonvolatile configuration storage in microcontroller-based systems requiring low-power, reliable data retention.
For engineers reviewing the 93LC86CT-E/MNY datasheet, 93LC86CT-E/MNY pinout, 93LC86CT-E/MNY application, or 93LC86CT-E/MNY equivalent, key selection considerations include its dual-word-size flexibility, Program Enable (PE) write-protection, Ready/Busy status signaling, self-timed erase/write, and compatibility with legacy Microwire controllers in space-constrained embedded designs.
Technical Context
The 93LC86CT-E/MNY implements a synchronous 3-wire Microwire interface (CS, CLK, DI/DO) with start-bit detection and opcode-driven command execution. Its memory array supports both x8 (ORG = low) and x16 (ORG = high) configurations, with dedicated PE pin enabling hardware-level write inhibition independent of software state.
Internal logic includes automatic ERAL before WRAL, power-on/off data protection, and voltage-dependent programming enable (VPOR = 1.5 V typical). All erase/write operations are self-timed with DO pin indicating Ready/Busy status after CS reassertion - no external timing control required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 16 Kbit (2048 × 8 or 1024 × 16) |
| VCC range | 2.5 V to 5.5 V - supports single-supply operation across 3.3 V and 5 V systems |
| Endurance | 1,000,000 erase/write cycles - enables long-term field calibration and logging |
| Data retention | >200 years at 25°C - ensures firmware/config integrity over product lifetime |
| Max clock frequency | 3 MHz at VCC ≥ 4.5 V - permits fast configuration loading without CPU overhead |
| Write cycle time | 5 ms (erase/write), 6 ms (ERAL), 15 ms (WRAL) - deterministic timing for real-time system scheduling |
| Operating temp | −40°C to +125°C (Automotive E-grade) - qualified for under-hood and industrial control environments |
Pinout & Package
93LC86CT-E/MNY is housed in an 8-lead 2×3 mm DFN (MNY) package with exposed pad, Pb-free Matte Tin finish. Pin 1 marked by laser, pin 5 = VSS, pin 8 = VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-high enable; must be held low ≥250 ns between instructions to reset internal logic |
| CLK | Serial Clock | Rising-edge synchronized I/O; stoppable at any point for master flexibility |
| DI | Data Input | Accepts start bit, opcode, address, and data; shares net with DO in bidirectional mode (requires series resistor) |
| DO | Data Output / Status | Outputs read data or Ready/Busy (low = busy); enters High-Z on CS falling edge |
| VSS | Ground | Reference for all I/O and internal logic; connected to exposed pad for thermal/electrical stability |
| ORG | Organization select | High = x16 mode, low = x8 mode; must be statically tied - no floating allowed |
| PE | Program Enable | High = write enabled, low = full array write-protected; mandatory for WRAL/ERASE execution |
| VCC | Power supply | Supplies core and I/O; VPOR threshold (1.5 V) prevents corruption during brown-out |
Key Features
| Feature | Design Value |
|---|---|
| Configurable word size | Hardware-selectable 8-bit or 16-bit organization via ORG pin - eliminates need for software byte-swapping in mixed-bus systems |
| Hardware write protection | Dedicated PE pin provides fail-safe, always-active write inhibit - immune to firmware crashes or SPI bus glitches |
| Self-timed erase/write | No external timing components or CPU polling loops needed - simplifies driver development and reduces interrupt latency |
| Auto-ERAL before WRAL | Entire array erased before bulk write - guarantees consistent initial state without separate erase command sequence |
| Ready/Busy status | DO pin doubles as status indicator - enables efficient polling without additional GPIO or status registers |
Applications
| Motor Control Configuration | Industrial Sensor Calibration |
|---|---|
Use Scenario: Storing motor commutation tables, PID coefficients, and fault thresholds in BLDC drives operating at 125°C ambient. IC Role / Device Role / Timing Role: Nonvolatile configuration store interfaced to MCU via Microwire; accessed during boot and runtime parameter updates. Use Value: 125°C rating and 1M-cycle endurance ensure reliable recalibration over 10+ years of continuous operation. | Use Scenario: Holding factory-trimmed offset/gain values and linearization coefficients for analog sensor front-ends in process automation. IC Role / Device Role / Timing Role: Calibration data repository with hardware write-protection (PE = low) preventing field corruption during sensor replacement. Use Value: >200-year data retention preserves traceability and eliminates periodic recalibration schedules. |
| Automotive Body Controller | Medical Device Settings |
Use Scenario: Saving user preferences (mirror position, seat memory, lighting profiles) in automotive body control modules. IC Role / Device Role / Timing Role: Low-power EEPROM accessed over Microwire during ignition-on initialization and infrequent user updates. Use Value: 2.5 V min VCC enables direct connection to 3.3 V domain; standby current ≤5 µA extends battery life in sleep modes. | Use Scenario: Securing device-specific operational parameters (dose limits, alarm thresholds, language settings) in portable diagnostic equipment. IC Role / Device Role / Timing Role: Tamper-resistant configuration store with PE-enabled hardware lockout during normal operation. Use Value: Power-on data protection and VPOR circuitry prevent configuration loss during power interruptions common in battery-powered use. |
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/MNY | Same die, Industrial grade (−40°C to +85°C); no automotive qualification | Lacks AEC-Q100 compliance; unsuitable for under-hood or safety-critical systems | Select when cost sensitivity outweighs extended temperature requirement and automotive qualification is not mandated |
| AT25DF041A-SSH-T | 4 Mbit SPI Flash, no ORG/PE pins, sector erase only, no auto-ERAL/WRAL | Requires external erase management; lacks hardware write-lock and dual-word-size flexibility | Choose for higher density where sequential access and bulk erase are acceptable trade-offs for reduced pin count |
Compared with 93LC86CT-E/MNY, the 93LC86C-I/MNY offers identical functionality at lower cost but excludes automotive qualification, while the AT25DF041A-SSH-T provides greater capacity via SPI but removes hardware-configurable organization and integrated write protection - making it less suitable for deterministic, safety-aware configuration storage.
Availability
93LC86CT-E/MNY is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor drives, and medical device configuration storage requiring stable component supply, long-lifecycle support, and AEC-Q100-compliant nonvolatile memory.
Supply support for 93LC86CT-E/MNY 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 devices, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 93LCxx family was designed specifically for low-voltage, low-power serial EEPROM applications in automotive, industrial, and consumer systems requiring robust data retention, hardware write protection, and Microwire protocol compatibility.
FAQ
What is the function of the ORG pin on the 93LC86CT-E/MNY?
The ORG pin on the 93LC86CT-E/MNY selects memory organization: logic high configures the device as 1024 × 16-bit, and logic low configures it as 2048 × 8-bit. This hardware-selectable mode eliminates software byte manipulation and ensures optimal bus utilization in both 8-bit and 16-bit host systems. The 93LC86CT-E/MNY requires ORG to be statically tied - floating is not permitted.
How does the PE pin protect memory on the 93LC86CT-E/MNY?
The PE (Program Enable) pin on the 93LC86CT-E/MNY provides hardware-level write protection: tying PE to VSS disables all erase and write operations, including ERAL and WRAL, regardless of instruction sequence. This failsafe mechanism prevents accidental corruption during power transients or firmware errors. The 93LC86CT-E/MNY will not execute EWEN unless PE is high, making it essential for safety-critical configuration storage.
What is the maximum clock frequency supported by the 93LC86CT-E/MNY at 3.3 V?
At VCC = 3.3 V (within the 2.5–5.5 V range), the 93LC86CT-E/MNY supports a maximum clock frequency of 2 MHz, as specified in Table 1-2 (A1: FCLK, condition "2.5V ≤ VCC < 4.5V"). This ensures reliable timing margin for Microwire communication in 3.3 V systems, with corresponding minimum clock high/low times of 250 ns and 200 ns respectively.
Does the 93LC86CT-E/MNY require an external pull-up resistor on the DO line?
No, the 93LC86CT-E/MNY does not require an external pull-up on DO. Its output buffer actively drives high or low during read or status polling, and enters High-Z when CS is low or during non-read states. However, if DI and DO are shorted for bidirectional use, a series resistor (recommended 10 kΩ) must be added to prevent bus conflict during the dummy-zero phase of read operations - per Section 2.2 of the datasheet.
What packaging and marking identify the 93LC86CT-E/MNY device?
The 93LC86CT-E/MNY uses an 8-lead 2×3 mm DFN package (MNY suffix) with exposed thermal pad. Marking includes "L86C" as first-line code, "3L86CT" as second-line code, "E" for automotive grade, "528" for date code (2025, week 28), and "EE4" as package-specific identifier per DS21797L-page 14. The laser-marked pin 1 identifier confirms authenticity and orientation.
93LC86CT-E/MNY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-WFDFN 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:
- Microwire
- Clock Frequency:
- 3 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- -
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (2x3)
93LC86CT-E/MNY FAQ
1.How can I place an order for 93LC86CT-E/MNY through Aetrix?
Please submit a Request for Quotation (RFQ) for 93LC86CT-E/MNY 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-E/MNY reliable?
The price and inventory of 93LC86CT-E/MNY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 93LC86CT-E/MNY is usually 5 days.
3.What payment methods are accepted for 93LC86CT-E/MNY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 93LC86CT-E/MNY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 93LC86CT-E/MNY?
93LC86CT-E/MNY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 93LC86CT-E/MNY 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-E/MNY?
For technical support, including 93LC86CT-E/MNY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 93LC86CT-E/MNY requirements.
6.How does Aetrix verify that 93LC86CT-E/MNY is sourced from the original manufacturer or authorized distributors?
All 93LC86CT-E/MNY 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-E/MNY meets industry standards.
7.What is the process for return or replacement of 93LC86CT-E/MNY?
All 93LC86CT-E/MNY units undergo pre-shipment inspection (PSI). If there is an issue with 93LC86CT-E/MNY, 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-E/MNY part is unused and in its original packaging.
Return procedure for 93LC86CT-E/MNY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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