My Inquiry
My Account
Microchip Technology 93LC86BT-E/OT
- Part No.:
- 93LC86BT-E/OT
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- SOT-23-6
- Datasheet:
-
93LC86BT-E/OT.pdf
- Description:
- IC EEPROM 16KBIT MICROWIRE SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:2,680
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
93LC86BT-E/OT from Microchip Technology Inc. is a 16 Kbit (2048 × 8) low-voltage serial EEPROM with Microwire-compatible 3-wire interface, operating from 2.5 V to 5.5 V, rated for automotive temperature range (−40°C to +125°C), and housed in a Pb-free SOT-23-6 package. It delivers 1 million erase/write cycles and >200 years data retention for nonvolatile configuration storage in automotive control modules.
For engineers reviewing the 93LC86BT-E/OT datasheet, 93LC86BT-E/OT pinout, 93LC86BT-E/OT application, or 93LC86BT-E/OT equivalent, key selection criteria include its automotive-grade reliability, SOT-23-6 footprint compatibility, 8-bit organization without ORG/PE pins, and support for sequential read, ERAL, WRAL, and Ready/Busy status polling via DO pin.
Technical Context
This device implements a synchronous serial Microwire interface with CS, CLK, DI, and DO signals - no ORG or PE pins present, confirming fixed 8-bit organization and always-enabled programming. Communication requires a Start bit (CS high + DI high on first CLK rising edge), followed by opcode, address (11-bit for 2048-word space), and data.
Internal self-timed erase/write cycles eliminate external timing control; ERAL and WRAL commands execute full-array operations with auto-erase, while DO pin provides real-time Ready/Busy status during active programming when CS is reasserted after ≥250 ns low time (TCSL).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 16 Kbit (2048 × 8) - supports up to 2048 bytes of configuration or calibration data |
| VCC range | 2.5 V to 5.5 V - compatible with 3.3 V and 5 V systems without level shifting |
| Endurance | 1,000,000 erase/write cycles - suitable for frequent field updates in automotive ECUs |
| Data retention | >200 years at 85°C - ensures long-term reliability over vehicle lifetime |
| Max clock frequency | 3 MHz at VCC ≥ 4.5 V - enables fast bulk reads/writes in time-critical boot sequences |
| Write cycle time | 5 ms typical (TWC) - defines minimum interval between successive write commands |
| Operating temp | −40°C to +125°C (Automotive E grade) - qualified for under-hood and transmission control applications |
| Interface | Microwire 3-wire serial (CS/CLK/DI/DO) - minimal GPIO usage, no I²C pull-ups required |
Pinout & Package
Package: SOT-23-6, Pb-free matte tin finish, 1.6 mm × 2.8 mm footprint, 1.1 mm height - optimized for space-constrained automotive PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DO) | Data Output / Ready-Busy indicator | Tri-state output delivering read data or logic-low busy signal during erase/write; must be polled after CS reassertion |
| 2 (VSS) | Ground reference | Primary return path for all internal circuitry; requires low-impedance connection to system ground plane |
| 3 (DI) | Data Input | Accepts Start bit, opcodes, addresses, and write data on CLK rising edges; not bidirectional |
| 4 (CLK) | Serial clock input | Synchronizes all data transfers; supports pause/resume; no clocking needed during self-timed write |
| 5 (CS) | Chip Select | Active-high enable; device enters Standby mode when low, but completes ongoing write before sleeping |
| 6 (VCC) | Power supply | Supplies core logic and memory array; internal POR triggers below 1.5 V to prevent corruption |
Key Features
| Feature | Design Value |
|---|---|
| Self-timed erase/write cycles | Eliminates need for external timing control or watchdog supervision during programming |
| Automatic Erase All (ERAL) | Resets entire array to 0xFF in one command - essential for factory reset or security wipe |
| Sequential read function | Enables continuous byte streaming without reissuing address - reduces firmware overhead in config loading |
| Ready/Busy status on DO pin | Allows polling-based flow control instead of fixed delays - improves system responsiveness |
| Power-on/off data protection | Hardware-level VCC monitoring prevents writes during brown-out - eliminates need for software CRC checks |
| Pb-free and RoHS compliant | Meets automotive ELV Directive requirements for hazardous substance restriction |
Applications
| Engine Control Unit (ECU) | Advanced Driver Assistance Systems (ADAS) |
|---|---|
Use Scenario: Storing fuel map calibration tables and sensor offset compensation values updated during dealer reprogramming. IC Role / Device Role / Timing Role: Nonvolatile configuration storage with guaranteed write integrity during ignition cycling. Use Value: Enables field-upgradable engine tuning without requiring external backup power or complex wear-leveling firmware. | Use Scenario: Retaining camera lens focus offsets and radar module gain settings across power cycles in parking assist modules. IC Role / Device Role / Timing Role: Persistent parameter storage with automotive-grade temperature and endurance compliance. Use Value: Maintains system accuracy over 15+ year vehicle life without recalibration drift or data loss. |
| Transmission Control Module (TCM) | Body Control Module (BCM) |
Use Scenario: Saving adaptive shift-point learning data and gear ratio verification codes during vehicle service events. IC Role / Device Role / Timing Role: High-reliability EEPROM interfacing directly with 3.3 V microcontroller SPI-compatible GPIOs. Use Value: Supports 1M+ write cycles required for dynamic learning algorithms without premature wear-out. | Use Scenario: Holding door lock configuration, lighting dimming profiles, and seat position memory for personalized user settings. IC Role / Device Role / Timing Role: Low-pin-count serial EEPROM minimizing BOM count in cost-sensitive body electronics. Use Value: Reduces PCB area and routing complexity versus parallel EEPROM or flash alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT25160B-MAHL-T | 16 Kbit SPI interface (4-wire), 2.5–5.5 V, SOIC-8 package, no ERAL/WRAL support | Lacks Microwire compatibility and full-array erase/write; requires separate erase commands | Select if SPI-native host MCU is used and full-array operations are unnecessary |
| BR24G16NUX-10 | 16 Kbit I²C interface, 1.7–5.5 V, TSSOP-8, supports write protect pin and page write | Different protocol stack; requires pull-up resistors and ACK/NACK handling; no Ready/Busy pin | Choose for I²C-bus systems where interrupt-driven status polling is impractical |
Compared with AT25160B-MAHL-T and BR24G16NUX-10, the 93LC86BT-E/OT offers native Microwire timing, hardware Ready/Busy signaling, and integrated ERAL/WRAL - reducing firmware complexity and improving deterministic write latency in automotive real-time control loops.
Availability
93LC86BT-E/OT is available at Aetrix Electronics and suitable for automotive control units, ADAS subsystems, and industrial programmable logic controllers requiring stable component supply with extended temperature operation and long-term data integrity.
Supply support for 93LC86BT-E/OT 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 infrastructure.
The 93LCxx family was designed specifically for cost-sensitive, space-constrained embedded systems needing reliable, low-power serial EEPROM - especially in automotive, industrial, and consumer applications demanding AEC-Q100 alignment and long data retention.
FAQ
What is the memory organization of the 93LC86BT-E/OT?
The 93LC86BT-E/OT is an 8-bit organization device (2048 × 8), confirmed by its 'A' suffix and absence of ORG and PE pins per the Device Selection Table. This means each address holds one byte, and READ/WRITE instructions transfer 8-bit data words - no external logic is needed to configure word size, unlike 'C' variants.
Does the 93LC86BT-E/OT support the ERAL (Erase All) command?
Yes, the 93LC86BT-E/OT supports ERAL (Erase All). As documented in Table 1-4 and Section 2.5, it executes a full-array erase to 0xFF state in 6 ms (TEC) when VCC ≥ 4.5 V. The command uses opcode '0010' and requires prior EWEN activation - critical for secure factory reset in automotive firmware updates.
What package type is used for the 93LC86BT-E/OT?
The 93LC86BT-E/OT uses the SOT-23-6 package (marked 'OT' in Microchip's packaging code), with pinout: DO (1), VSS (2), DI (3), CLK (4), CS (5), VCC (6). Its 1.6 mm × 2.8 mm footprint and 1.1 mm height make it ideal for dense automotive PCB layouts where board space is constrained.
How does the Ready/Busy status work on the 93LC86BT-E/OT?
The 93LC86BT-E/OT asserts Ready/Busy status on the DO pin: logic low = busy (erase/write in progress), logic high = ready. To read status, CS must be held low ≥250 ns (TCSL), then driven high; DO becomes valid within TSV (≤500 ns). This polling mechanism replaces fixed delays, enabling responsive firmware control during programming sequences.
Is the 93LC86BT-E/OT qualified for automotive applications?
Yes, the 93LC86BT-E/OT is explicitly rated for the Automotive (E) temperature range (−40°C to +125°C) and carries the 'E' suffix in its part number. It meets automotive reliability requirements including 1M endurance cycles and >200-year data retention at 85°C - making it suitable for under-hood and transmission control applications per AEC-Q100 guidelines.
93LC86BT-E/OT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 16Kbit
- Memory Organization:
- 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:
- SOT-23-6
93LC86BT-E/OT FAQ
1.How can I place an order for 93LC86BT-E/OT through Aetrix?
Please submit a Request for Quotation (RFQ) for 93LC86BT-E/OT 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 93LC86BT-E/OT reliable?
The price and inventory of 93LC86BT-E/OT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 93LC86BT-E/OT is usually 5 days.
3.What payment methods are accepted for 93LC86BT-E/OT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 93LC86BT-E/OT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 93LC86BT-E/OT?
93LC86BT-E/OT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 93LC86BT-E/OT 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 93LC86BT-E/OT?
For technical support, including 93LC86BT-E/OT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 93LC86BT-E/OT requirements.
6.How does Aetrix verify that 93LC86BT-E/OT is sourced from the original manufacturer or authorized distributors?
All 93LC86BT-E/OT 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 93LC86BT-E/OT meets industry standards.
7.What is the process for return or replacement of 93LC86BT-E/OT?
All 93LC86BT-E/OT units undergo pre-shipment inspection (PSI). If there is an issue with 93LC86BT-E/OT, 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 93LC86BT-E/OT part is unused and in its original packaging.
Return procedure for 93LC86BT-E/OT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
93LC86BT-E/OT Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
