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Microchip Technology 93C86A-E/SN
- Part No.:
- 93C86A-E/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
93C86A-E/SN.pdf
- Description:
- IC EEPROM 16KBIT MICROWIRE 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,465
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Product details
Overview
93C86A-E/SN from Microchip Technology Inc. is a 16 Kbit (2048 × 8-bit) low-voltage serial EEPROM with Microwire-compatible 3-wire interface, 4.5–5.5 V supply range, and industrial/automotive temperature support (–40°C to +125°C). It features self-timed erase/write cycles, automatic ERAL/WRAL, power-on/off data protection, and Ready/Busy status via DO pin - used in automotive body control modules for calibration storage.
For engineers reviewing the 93C86A-E/SN datasheet, 93C86A-E/SN pinout, 93C86A-E/SN application, or 93C86A-E/SN equivalent, key selection criteria include VCC operating range (4.5–5.5 V), 8-bit fixed organization, automotive-grade reliability (1M endurance, >200-year retention), and SOIC-8 package compatibility with legacy board layouts.
Technical Context
The 93C86A-E/SN implements a synchronous serial Microwire protocol with CS/CLK/DI/DO signaling and no ORG or PE pins - confirming fixed 8-bit word size and always-enabled programming. Its internal architecture includes an address counter, mode decode logic, and output buffer, enabling sequential read and single-byte write operations without external address latching.
Power management relies on VCC voltage detection (VPOR = 3.8 V typical) to inhibit all operations below threshold, while standby current is limited to 5 µA (E-temp). Write cycle timing is fixed at 2 ms (TWC), and ERAL/WRAL commands require ≥4.5 V for guaranteed execution - aligning with automotive battery rail stability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8-bit) - supports up to 2 KB of nonvolatile configuration or calibration data |
| VCC Range | 4.5 V to 5.5 V - compatible with regulated 5 V automotive subsystems and immune to brown-out below 3.8 V |
| Endurance | 1,000,000 erase/write cycles - ensures reliable field updates over 10+ years in telematics log storage |
| Data Retention | >200 years at +25°C - guarantees calibration integrity across vehicle lifetime without refresh |
| Write Cycle Time | 2 ms (TWC) - enables fast firmware parameter updates during ECU boot or diagnostics |
| Interface | Microwire 3-wire serial (CS/CLK/DI/DO) - minimal GPIO usage, no address bus or parallel control overhead |
| Temp Range | –40°C to +125°C (Automotive E-grade) - qualified for under-hood and transmission control unit environments |
Pinout & Package
8-pin SOIC package (SN suffix), 3.9 mm × 4.9 mm body, 1.27 mm pitch, Pb-free Matte Tin finish. Pin 1 marked by laser dot; standard JEDEC MS-012AC outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-high enable; must be held low ≥250 ns between instructions to reset internal state |
| CLK | Serial Clock | Rising-edge synchronized I/O; clock can pause mid-transfer without corruption |
| DI | Data Input | Accepts Start bit, opcode, address, and data; high-impedance when not selected |
| DO | Data Output / Status | Tri-state output delivering read data or Ready/Busy (low = busy) during programming |
| VSS | Ground | Reference for all digital and analog circuitry; requires low-inductance connection to minimize noise |
| VCC | Power Supply | 4.5–5.5 V input; internal POR circuit blocks operation below 3.8 V typical |
Key Features
| Feature | Design Value |
|---|---|
| Self-timed Erase/Write | Eliminates need for external timing control or polling delay loops in host firmware |
| Automatic ERAL before WRAL | Ensures full-array write consistency without separate erase command sequence |
| Power-On/Off Data Protection | Hardware-level lockout prevents partial writes during supply ramp-up/down transients |
| Ready/Busy Status via DO | Enables efficient host polling instead of fixed delays, reducing worst-case latency by >50% |
| Industry Standard Microwire Interface | Direct drop-in replacement for legacy 93Cxx EEPROMs without driver layer changes |
Applications
| Automotive Body Control Module | Industrial PLC Configuration Storage |
|---|---|
Use Scenario: Storing door lock actuator calibration offsets and seat position memory across ignition cycles. IC Role / Device Role / Timing Role: Nonvolatile parameter register accessed via MCU SPI-like Microwire peripheral during startup and diagnostics. Use Value: Maintains user preferences and safety-critical actuator trims without battery backup capacitor or external supervision. | Use Scenario: Holding I/O mapping tables and PID tuning constants in modular automation controllers. IC Role / Device Role / Timing Role: Serial configuration EEPROM interfaced to ARM Cortex-M host with deterministic 2 ms write latency. Use Value: Enables field-upgradable control logic without firmware reflash, reducing maintenance downtime. |
| Medical Infusion Pump Calibration | Smart Energy Meter Firmware Parameters |
Use Scenario: Retaining flow rate calibration coefficients and dose history logs in battery-powered portable devices. IC Role / Device Role / Timing Role: Low-power 8-bit serial EEPROM accessed during pump initialization and error recovery routines. Use Value: Guarantees traceable dosage accuracy over 10+ years via >200-year data retention and AEC-Q100-aligned reliability. | Use Scenario: Storing tariff schedules, metering constants, and tamper-event timestamps in ANSI C12.22-compliant meters. IC Role / Device Role / Timing Role: Automotive-grade EEPROM integrated into metrology SoC's serial peripheral interface for secure parameter storage. Use Value: Meets ANSI/IEEE C12.22 security requirements through hardware write-protection and voltage-monitored access control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 93LC86A-E/SN | VCC range 2.5–5.5 V; same 2048×8 organization; supports wider low-voltage operation | Better suited for mixed-signal systems with 3.3 V logic rails; lacks automotive qualification at full 2.5 V min | Select if system operates below 4.5 V or requires broader voltage margin; verify E-temp performance at 2.5 V |
| AT25DF021-SSH-T | SPI interface (4-wire), 2 Mbit density, 2.7–3.6 V only; no automotive temp grade | Higher density for firmware storage; incompatible protocol and voltage domain - requires driver rewrite | Consider only for new designs needing >16 Kbit capacity and 3.3 V operation; not a drop-in replacement |
Compared with 93LC86A-E/SN, the 93C86A-E/SN offers tighter VCC regulation tolerance and guaranteed automotive qualification across its full 4.5–5.5 V range, while AT25DF021-SSH-T provides higher density at the cost of interface incompatibility and voltage mismatch.
Availability
93C86A-E/SN is available at Aetrix Electronics and suitable for automotive electronics, industrial PLCs, and medical device manufacturing requiring stable component supply with long-term lifecycle assurance.
Supply support for 93C86A-E/SN 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.
The 93Cxx EEPROM product line targets cost-sensitive, high-reliability applications in automotive, industrial, and consumer systems where proven Microwire compatibility and extended temperature operation are critical.
FAQ
What is the maximum clock frequency supported by the 93C86A-E/SN?
At VCC = 4.5–5.5 V, the 93C86A-E/SN supports a maximum clock frequency of 3 MHz (FCLK). This allows high-speed parameter reads during ECU boot sequences while maintaining timing margins per AC specification Table 1-2.
Does the 93C86A-E/SN require external pull-up resistors on its I/O lines?
Yes - the 93C86A-E/SN requires external pull-up resistors on CS, DI, and DO lines to ensure valid logic levels during idle and multi-drop configurations. Typical values are 4.7 kΩ to VCC, per Microchip Application Note AN867.
Can the 93C86A-E/SN be used in place of a 93AA86A-E/SN?
No - the 93C86A-E/SN is not a direct replacement for the 93AA86A-E/SN due to differing VCC ranges (4.5–5.5 V vs. 1.8–5.5 V) and POR thresholds (3.8 V vs. 1.5 V). Interchange may cause functional failure below 4.5 V or during brown-out conditions.
How is data protection implemented during power transitions in the 93C86A-E/SN?
The 93C86A-E/SN uses an internal voltage detector (VPOR = 3.8 V typical) that disables all write/erase operations when VCC falls below threshold. This prevents partial writes during power-up/down, ensuring data integrity without external supervisor ICs.
What package variants are available for the 93C86A-E/SN besides SOIC-8?
The 93C86A-E/SN is offered exclusively in the 8-pin SOIC package (SN). Other variants like PDIP (P), TSSOP (ST), MSOP (MS), and DFN (OT) are documented for the 93C86A family but not assigned to the -E/SN suffix per Microchip's DS21797L device selection table.
93C86A-E/SN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 16Kbit
- Memory Organization:
- 2K x 8
- Memory Interface:
- Microwire
- Clock Frequency:
- 3 MHz
- Write Cycle Time - Word, Page:
- 2ms
- Access Time:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
93C86A-E/SN FAQ
1.How can I place an order for 93C86A-E/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for 93C86A-E/SN 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 93C86A-E/SN reliable?
The price and inventory of 93C86A-E/SN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 93C86A-E/SN is usually 5 days.
3.What payment methods are accepted for 93C86A-E/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 93C86A-E/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 93C86A-E/SN?
93C86A-E/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 93C86A-E/SN 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 93C86A-E/SN?
For technical support, including 93C86A-E/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 93C86A-E/SN requirements.
6.How does Aetrix verify that 93C86A-E/SN is sourced from the original manufacturer or authorized distributors?
All 93C86A-E/SN 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 93C86A-E/SN meets industry standards.
7.What is the process for return or replacement of 93C86A-E/SN?
All 93C86A-E/SN units undergo pre-shipment inspection (PSI). If there is an issue with 93C86A-E/SN, 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 93C86A-E/SN part is unused and in its original packaging.
Return procedure for 93C86A-E/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
93C86A-E/SN Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
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AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
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24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
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