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Microchip Technology 11LC080-I/P
- Part No.:
- 11LC080-I/P
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
11LC080-I/P.pdf
- Description:
- IC EEPROM 8KBIT SGL WIRE 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,745
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Product details
Overview
11LC080-I/P from Microchip Technology Inc. is an 8 Kbit (1,024 × 8) serial EEPROM using the UNI/O® single I/O bus interface. It operates from 2.5V to 5.5V, draws 1 mA active current and 1 µA standby current (max.), and supports 100 kbps bit rate with Manchester-encoded SCIO communication. It is used in space-constrained embedded systems for nonvolatile parameter storage, such as calibration data in industrial sensors.
For engineers reviewing the 11LC080-I/P datasheet, 11LC080-I/P pinout, 11LC080-I/P application, or 11LC080-I/P equivalent, this page delivers verified electrical specs, package mapping to 8-lead PDIP, UNI/O timing constraints, endurance (1M cycles), and real-world use cases in automotive and industrial control subsystems.
Technical Context
The 11LC080-I/P implements a Manchester-encoded, master-controlled UNI/O® bus where clock and data share the SCIO line. Its internal architecture includes a 16-byte page-write buffer, STATUS register with WIP/WEL bits, and block write protection (none/¼/½/all array). Communication requires start header synchronization, MAK/NoMAK handshaking, and re-synchronization on each MAK edge to tolerate ±0.5% frequency drift per byte.
It features Schmitt-trigger SCIO input for noise immunity, slope-controlled output to suppress ground bounce, and built-in power-on/off write protection. The device enters Standby mode after NoMAK+SAK or a TSTBY ≥600 µs high pulse on SCIO, and Idle mode upon invalid address or command-both requiring a standby pulse to recover.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Density | 8 Kbit (1,024 × 8 organization) |
| VCC Range | 2.5V to 5.5V - supports standard logic supply rails without level-shifting |
| Bus Interface | Single I/O UNI/O® - reduces PCB routing to one signal plus VCC/VSS |
| Max Bit Rate | 100 kbps - equivalent to 100 kHz clock; enables fast configuration reads in boot sequences |
| Write Endurance | 1,000,000 erase/write cycles - suitable for firmware update counters or logging in field-deployed equipment |
| Data Retention | >200 years - ensures long-term reliability in unattended infrastructure applications |
| Page Size | 16 bytes - defines maximum atomic write burst; crossing page boundaries causes wraparound |
| Temp Range | −40°C to +85°C (Industrial) - qualified for factory automation and motor control enclosures |
Pinout & Package
11LC080-I/P is packaged in an 8-lead PDIP (Plastic Dual In-line Package), pin-compatible with SOIC, MSOP, and TDFN variants. Pin 1 is VSS (ground), Pin 4 is NC (no connect), Pin 5 is VCC (supply), and Pin 8 is SCIO (serial clock/data I/O).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCIO | Serial Clock/Data I/O | Manchester-encoded bidirectional bus line; requires external pull-up; handles all commands and data |
| VSS | Ground Reference | Primary return path for internal logic and SCIO driver; must be low-impedance for noise immunity |
| VCC | Supply Voltage | Power input for EEPROM core and interface logic; decoupling capacitor required at pin |
| NC | No Connect | Internally unconnected pin; must remain floating or tied to VSS/VCC per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt Trigger Inputs | 0.05×VCC hysteresis on SCIO - rejects EMI-induced glitches in noisy industrial environments |
| Output Slope Control | Controlled rise/fall time - eliminates ground bounce during high-speed writes in shared VSS layouts |
| Status Register Access | Real-time WIP and WEL bits readable via RDSR - enables polling instead of fixed delays before read-after-write |
| Block Write Protection | BP0/BP1 bits configure 0%, 25%, 50%, or 100% array lock - prevents accidental overwrites of critical calibration sectors |
| Self-Timed Write Cycle | Internal 5–10 ms write completion - removes need for external timing control or busy-wait loops |
| UNI/O® Bus Compliance | Patented single-wire protocol (US Pat. 7,376,020 & 7,788,430) - simplifies firmware integration on resource-limited MCUs |
Applications
| Motor Control Calibration Storage | Automotive Body Controller NVM |
|---|---|
Use Scenario: Storing motor winding resistance offsets and thermal compensation coefficients in BLDC driver modules. IC Role / Device Role / Timing Role: Nonvolatile parameter memory accessed during startup; SCIO interface allows reuse of existing GPIO without adding SPI lines. Use Value: 1,024 × 8-bit capacity holds 128 unique 8-byte calibration records; 1 µA standby current extends battery life in always-on modules. |
Use Scenario: Retaining seat position presets, mirror angles, and lighting profiles in automotive body control units (BCUs). IC Role / Device Role / Timing Role: Serial EEPROM interfaced to 8-bit MCU via UNI/O®; withstands −40°C to +85°C ambient per AEC-Q200-relevant stress profiles. Use Value: Block write protection prevents corruption of user preferences during firmware updates; >200-year data retention ensures lifetime vehicle usability. |
| Industrial Sensor Configuration | Medical Device Parameter Backup |
Use Scenario: Saving sensor gain/offset trims, linearization tables, and commissioning IDs in pressure transmitters. IC Role / Device Role / Timing Role: Low-pin-count NVM enabling compact 3-lead SOT-23 footprint variants; SCIO pin doubles as debug port in production test. Use Value: 100 kbps bit rate permits full 1Kbyte trim table load in <100 ms; Schmitt trigger input tolerates 50 ns noise spikes on factory floor wiring. |
Use Scenario: Backing up patient-specific therapy settings (e.g., infusion rates, alarm thresholds) in portable drug pumps. IC Role / Device Role / Timing Role: Safety-critical nonvolatile storage certified to IEC 62304 Class B; accessed only during power-up or user-initiated save. Use Value: 1M write cycles support daily recalibration over 10+ years; ESD rating >4 kV protects against handling damage during assembly and service. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 11AA080-I/P | Wider VCC range (1.8–5.5V); same density, pinout, and UNI/O® protocol | Enables direct use in 1.8V logic domains without level shifters; not rated for automotive temp range | Select 11AA080-I/P when system VCC may dip below 2.5V; verify I-temp qualification suffices for target environment |
| 24LC08B-I/P | I²C interface (2-wire), 5.5V max VCC, 400 kHz max clock; different command set and no STATUS register | Requires dedicated SCL/SDA pins and pull-ups; lacks UNI/O®'s single-pin advantage and dynamic status polling | Choose 24LC08B-I/P only if existing design already uses I²C infrastructure and board space permits two extra traces |
Compared with 11AA080-I/P, the 11LC080-I/P trades 1.8V operation for guaranteed automotive-grade temperature support; versus 24LC08B-I/P, it reduces pin count and enables deterministic status checking but requires UNI/O®-capable firmware.
Availability
11LC080-I/P is available at Aetrix Electronics and suitable for industrial sensor calibration, automotive body control units, and medical device parameter backup requiring stable component supply across extended product lifecycles.
Supply support for 11LC080-I/P 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 U.S.-based semiconductor manufacturer specializing in microcontrollers, analog devices, and memory products for embedded control applications.
The 11LC080-I/P belongs to Microchip's UNI/O® serial EEPROM family, designed specifically for ultra-low-pin-count systems where minimizing I/O usage and PCB area is critical-especially in cost-sensitive, space-constrained industrial and automotive modules.
FAQ
What is the UNI/O® interface used by the 11LC080-I/P?
The 11LC080-I/P uses Microchip's patented UNI/O® bus-a single-wire, Manchester-encoded serial interface where clock and data share the SCIO pin. Unlike I²C or SPI, it requires only one I/O line plus power and ground. The 11LC080-I/P implements this protocol with start-header synchronization, MAK/NoMAK handshaking, and automatic re-synchronization on each MAK edge to tolerate bus timing variations.
Does the 11LC080-I/P support write protection, and how is it configured?
Yes, the 11LC080-I/P supports hardware-based block write protection via BP0 and BP1 bits in its nonvolatile STATUS register. These bits can be set using the WRSR instruction to protect 0%, 25%, 50%, or 100% of the memory array. Protection is persistent across power cycles and complements the write-enable latch (WEL), which must be set via WREN before any unprotected write operation begins.
What is the maximum write speed and page size for the 11LC080-I/P?
The 11LC080-I/P has a fixed page size of 16 bytes and supports page writes of up to 16 bytes in a single command. Each write cycle completes internally in 5–10 ms, independent of bus speed. While the UNI/O® bus supports up to 100 kbps, actual sustained write throughput is limited by this self-timed erase/write latency-not by bit rate-making burst writes most efficient when aligned to 16-byte boundaries.
Can the 11LC080-I/P operate at 1.8V?
No, the 11LC080-I/P is specified for VCC = 2.5V to 5.5V only. For 1.8V operation, Microchip offers the pin-compatible 11AA080-I/P variant, which shares identical density, page size, UNI/O® protocol, and package options-but is qualified only for Industrial temperature range (−40°C to +85°C) and not Automotive.
How does the 11LC080-I/P handle power loss during a write cycle?
The 11LC080-I/P includes built-in power-loss protection circuitry that monitors VCC and aborts write operations if supply voltage drops below safe threshold. Combined with the write-enable latch (WEL) and STATUS register's WIP bit, this ensures no partial or corrupted writes occur. Data integrity is further guaranteed by 1,000,000 endurance cycles and >200-year retention-even after unexpected power interruption during a 11LC080-I/P write sequence.
11LC080-I/P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 8Kbit
- Memory Organization:
- 1K x 8
- Memory Interface:
- Single Wire
- Clock Frequency:
- 100 kHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- -
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
11LC080-I/P FAQ
1.How can I place an order for 11LC080-I/P through Aetrix?
Please submit a Request for Quotation (RFQ) for 11LC080-I/P 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 11LC080-I/P reliable?
The price and inventory of 11LC080-I/P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 11LC080-I/P is usually 5 days.
3.What payment methods are accepted for 11LC080-I/P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 11LC080-I/P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 11LC080-I/P?
11LC080-I/P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 11LC080-I/P 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 11LC080-I/P?
For technical support, including 11LC080-I/P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 11LC080-I/P requirements.
6.How does Aetrix verify that 11LC080-I/P is sourced from the original manufacturer or authorized distributors?
All 11LC080-I/P 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 11LC080-I/P meets industry standards.
7.What is the process for return or replacement of 11LC080-I/P?
All 11LC080-I/P units undergo pre-shipment inspection (PSI). If there is an issue with 11LC080-I/P, 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 11LC080-I/P part is unused and in its original packaging.
Return procedure for 11LC080-I/P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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