PIC16LC711-04I/SO - 8-bit PIC MCU 1.75KB OTP 4MHz SOIC-18 | Microchip
MPN： PIC16LC711-04I/SO ✗ 停產PIC16LC711-04I/SO 概覽
A PIC microcontroller (Programmable Interface Controller) is a compact, low-power, RISC-based embedded computing device widely used for real-time control tasks. Within the broader taxonomy, the PIC16LC711 sits in the mid-range PIC16 family, which Microchip positions between the baseline PIC10/12/16/17 families and the enhanced PIC18 family. The "LC" prefix designates the low-voltage CMOS variant optimized for battery-powered and energy-conscious designs, where quiescent current and wide operating voltage matter most. Microcontrollers integrate CPU, program memory, RAM, peripherals (ADC, timers, I/O), and a bus onto a single IC.
Key features of the PIC16LC711-04I/SO include 13 bidirectional I/O pins, three timers (Timer0 8-bit, Timer1 16-bit, Timer2 8-bit), a 4-channel 8-bit successive-approximation A/D converter with up to 8 channels, an 8-level hardware stack, and a watchdog timer with on-chip RC oscillator. The RISC architecture executes 35 single-word instructions, all in a single instruction cycle except branches (two cycles). Power-on Reset, Power-up Timer, Oscillator Start-up Timer, and Brown-out Reset are all integrated to reduce external component count.
Typical applications include sensor signal conditioning with on-chip ADC conversion, low-cost motor control loops, battery-powered instrumentation, automotive body electronics (non-safety), appliance control boards, and educational embedded platforms. The wide 2.5V-5.5V operating range and industrial temperature grade make it suitable for harsh environments. Designers should note that this part is OTP-based, so a windowed CERDIP version (e.g., PIC16LC711-04I/P) is required during development if code iteration is needed.
直接替換替代品，適用於 PIC16LC711-04I/SO — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC16LC711-04I/SO （相同外形與佔位） — 差異在於 Package, Operating Temperature, ADC, Core Architecture, Program Memory Size.
PIC16LC711-04/SO
✅ 直接替換聯絡詢價
查看資料表 →PIC16LC711T-04I/SO
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16C711-04I/SO
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16F716-I/SO
✅ 直接替換聯絡詢價
查看資料表 →PIC16F716-I/SL
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC16LC711-04I/SO 最大額定值與電氣特性
| Product Family | PIC16C71x |
| Core | 8-bit PIC RISC |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 1.75 KB (1K x 14) |
| RAM Size | 68 bytes |
| Data EEPROM | Not present |
| Maximum Clock Speed | 4 MHz |
| Instruction Cycle | 200 ns |
| Supply Voltage Range | 2.5 V to 5.5 V |
| I/O Pins | 13 |
| ADC | 4-channel, 8-bit |
| Timers | Timer0 (8-bit), Timer1 (16-bit), Timer2 (8-bit) |
| 工作溫度 | -40 C to +85 C (Industrial, "I" suffix) |
| 封裝 | 18-pin SOIC (SO) |
| 安裝類型 | Surface Mount |
| Instruction Set | 35 single-word instructions |
| Stack | 8-level hardware |
| Watchdog Timer | Yes (with on-chip RC oscillator) |
| RoHS 狀態 | Compliant (Pb-free SO package) |
PIC16LC711-04I/SO 腳位配置
| 腳位 1 | RA0/AN0 — Digital I/O / Analog input channel 0 |
| 腳位 2 | RA1/AN1 — Digital I/O / Analog input channel 1 |
| 腳位 3 | RA2/AN2 — Digital I/O / Analog input channel 2 |
| 腳位 4 | RA3/AN3 — Digital I/O / Analog input channel 3 |
| 腳位 5 | VSS — Ground reference |
| 腳位 6 | OSC1 — Oscillator input / external clock input |
| 腳位 7 | OSC2 — Oscillator output / clock output |
| 腳位 8 | RB0/INT — Digital I/O / External interrupt |
| 腳位 9 | RB1 — Digital I/O |
| 腳位 10 | RB2 — Digital I/O |
| 腳位 11 | RB3 — Digital I/O |
| 腳位 12 | RB4 — Digital I/O (interrupt-on-change) |
| 腳位 13 | RB5 — Digital I/O (interrupt-on-change) |
| 腳位 14 | VDD — Positive supply voltage (2.5V-5.5V) |
| 腳位 15 | RC0 — Digital I/O / T1OSO (Timer1 oscillator output) |
| 腳位 16 | RC1 — Digital I/O / T1OSI (Timer1 oscillator input) |
| 腳位 17 | RC2 — Digital I/O / CCP1 (Capture/Compare/PWM) |
| 腳位 18 | RC3 — Digital I/O |
典型應用
PIC16LC711-04I/SO 適用於 6 應用s: Battery-Powered Sensor Interface, Appliance Control Board, Hobby and Educational Embedded Platform, Industrial Process Monitoring, Automotive Body Electronics (Non-Safety), Low-Cost Remote Control and RF Encoder.
Battery-Powered Sensor Interface
The PIC16LC711-04I/SO is well matched to battery-powered sensor interface designs that require on-chip analog conversion. Its 2.5 V to 5.5 V operating range allows direct connection to a single Li-ion cell (3.0 V-4.2 V) or two AA cells without a boost regulator, while the integrated 4-channel 8-bit ADC digitizes temperature, light, or voltage signals from low-cost analog sensors. The 4 MHz clock and 200 ns instruction cycle deliver enough throughput to scan multiple sensor channels and run basic digital filtering (e.g., moving average) in firmware. Compared to using an external ADC plus a discrete MCU, the on-chip ADC saves 2-3 external components, board space, and BOM cost. The wide industrial temperature range supports outdoor or unattended deployments. Power consumption is minimized by Sleep mode and the LC-process low quiescent current, which is critical for battery life. Engineers should budget ADC acquisition time at approximately 20 us per channel and use the on-chip RC oscillator for low-power standby timing.
推薦
Appliance Control Board
In white-goods appliance controllers (washing machines, dishwashers, microwaves, refrigerators), the PIC16LC711-04I/SO offers a low-cost entry point with sufficient I/O and ADC for mixed digital-and-analog control. The 13 bidirectional I/O pins can drive relays, triacs, LEDs, keypads, and seven-segment displays, while the 4-channel ADC reads thermistors (NTC), water-level sensors, and motor-current shunts. The 1.75 KB OTP memory fits typical appliance state-machine firmware including timing routines, motor-control loops, and safety interlocks. The industrial temperature grade (-40 C to +85 C) handles the thermal environment of enclosed appliances. The integrated watchdog timer and Brown-out Reset provide field robustness. Compared to a 32-bit MCU solution, the PIC16LC711 cuts cost by 30-50% for the same peripheral count. For production scale, OTP-based parts reduce per-unit programming cost compared to flash parts that need in-house firmware loading.
推薦
Hobby and Educational Embedded Platform
The PIC16LC711-04I/SO serves as a teaching MCU for introductory embedded systems courses, hobby robotics, and student projects because of its simple architecture, 35-instruction set, and forgiving 2.5V-5.5V supply tolerance. Students can power it from a 3V coin cell or a 5V USB-rail header and write code in assembly or PIC C without external peripherals. The 4-channel ADC allows analog sensor tutorials (LDRs, potentiometers, thermoresistors), while 13 I/O pins drive LEDs, buzzers, and small DC motors via Darlington drivers. The 200 ns instruction cycle gives visible timing behavior for teaching interrupts, timers, and PWM. Compared to more complex ARM Cortex-M0+ parts, the PIC16LC711 fits on a breadboard-friendly 0.300-inch SOIC-18 breakout, has free MPLAB X IDE toolchain support, and has hundreds of community code examples. Engineers should note that OTP memory means code cannot be rewritten; a windowed CERDIP package is recommended for classroom experimentation.
推薦
Industrial Process Monitoring
Industrial process monitoring loops with simple setpoint control and alarm reporting are a strong fit for the PIC16LC711-04I/SO. The 8-bit ADC reads 4-20 mA loop signals (after a sense resistor), thermistors, or pressure transducer outputs, while the on-chip timers schedule sampling intervals up to several seconds without CPU intervention. The -40 C to +85 C industrial temperature range supports factory floor environments, and the 2.5-5.5 V supply range allows operation from 24 V industrial rails via a simple linear regulator. The RISC core executes the 35-instruction set deterministically, making PLC-like ladder logic implementations practical. Compared to a PLC module, an embedded PIC16LC711 solution reduces cost from hundreds of dollars to a few dollars per node, while still meeting basic functional safety needs (watchdog, brown-out). Engineers should add external ESD protection on analog input pins (TVS diodes) and a watchdog timer-driven reset to meet industrial uptime targets.
推薦
Automotive Body Electronics (Non-Safety)
For non-safety automotive body electronics such as interior lighting controllers, seat-position memory modules, mirror adjusters, and accessory multiplexers, the PIC16LC711-04I/SO provides adequate performance at automotive cost targets. Note that this part is NOT AEC-Q100 qualified, so it is suitable only for cabin electronics operating below +85 C and away from engine-bay thermal stress. The wide operating voltage tolerates 12 V battery transients (when used with a 5 V regulator), and the ADC reads position sensors and current shunts for motor feedback. The 1.75 KB OTP memory fits small body-controller firmware, and the 13 I/O drive LEDs, small relays, and LIN bus transceivers. For safety-critical automotive designs (airbag, ABS, electronic power steering), engineers must select AEC-Q100 qualified parts instead. Compared to automotive-grade alternatives, the PIC16LC711 cuts MCU cost but requires additional qualification work for OEM acceptance.
推薦
Low-Cost Remote Control and RF Encoder
The PIC16LC711-04I/SO functions as the controller side of low-cost RF remote controls, garage door openers, key fobs, and simple wireless sensor nodes. The PIC issues button-decode logic, generates PWM or Manchester-encoded bit streams for the RF transmitter, and handles encryption or rolling-code algorithms. The 1.75 KB OTP fits small remote-control firmware plus a customer-specific rolling-code table, while the 13 I/O scan up to 13 buttons directly or a 4x4 keypad via a diode matrix. Sleep mode plus the LC-process low quiescent current extends battery life to 1-2 years on a coin cell. Compared to dedicated encoder ICs (e.g., PT2262/PT2272), the PIC16LC711 allows custom protocols, encryption, and bidirectional communication. Engineers should pair it with an SAW-resonator-based transmitter and design a PCB antenna trace for 315/433/868 MHz operation. Watchdog timer prevents lock-up if RF interference corrupts program flow.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16LC711-04I/SO — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC16LC711-04/SO | PIC16LC711T-04I/SO | PIC16C711-04I/SO | PIC16F716-I/SO | PIC16F716-I/SL |
|---|---|---|---|---|---|---|
| Package | 18-pin SOIC (SO) | 18-pin SOIC (SO) - same | 18-pin SOIC (SO) - same | 18-pin SOIC (SO) - same | 18-pin SOIC (SO) - same | 18-pin SOIC (SO) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory Type | 1.75 KB OTP | 1.75 KB OTP | 1.75 KB OTP | 1.75 KB OTP | Flash (reprogrammable) | Flash (reprogrammable) |
| Program Memory Size | 1.75 KB (1K x 14) | 1.75 KB (1K x 14) | 1.75 KB (1K x 14) | 1.75 KB (1K x 14) | 2 KB (typically) | 2 KB (typically) |
| Supply Voltage Range | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 3.0 V to 6.0 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| Operating Temperature | -40 C to +85 C (Industrial) | 0 C to +70 C (Commercial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
| Maximum Clock Speed | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 20 MHz | 20 MHz |
| ADC | 4-channel, 8-bit | 4-channel, 8-bit | 4-channel, 8-bit | 4-channel, 8-bit | Enhanced 8-bit | Enhanced 8-bit |
| Lifecycle Status | NRND | NRND | Active | NRND | Active | Active |
| Unit Price (qty 1, USD) | $5.44 | approximately $4.50 | $5.44 | approximately $5.00 | approximately $2.50 | approximately $2.50 |
主要差異化特點
- Wider supply voltage range than the standard PIC16C711-04I/SO (對比PIC16C711-04I/SO)
- Industrial temperature range versus commercial for the /SO variant (對比PIC16LC711-04/SO)
- Same SOIC-18 footprint and pinout as Microchip recommended upgrade part (對比PIC16F716-I/SO)
- Integrated 4-channel 8-bit ADC eliminates external ADC chip (對比Discrete PIC MCU + external ADC design)
設計說明
The PIC16LC711-04I/SO accepts 2.5V-5.5V on VDD (pin 14). Place a 100 nF ceramic decoupling capacitor within 5 mm of the VDD pin, plus a 10 uF bulk capacitor at the regulator output. For battery applications, the LC-variant quiescent current in Sleep mode drops to microampere range; use the watchdog timer or external interrupt to wake the MCU only when needed, maximizing battery life.
Layout the SOIC-18 footprint with the standard JEDEC MS-013 land pattern. Pin 5 is VSS (ground); route a low-impedance ground plane directly under the IC, and use a via stitch pattern around the SOIC pads to minimize ground bounce. Keep the OSC1/OSC2 traces short (under 10 mm) to reduce EMI pickup, and place the crystal or resonator within 5 mm of these pins. Use guard rings around the analog input pins (RA0-RA3) to isolate them from digital switching noise.
OTP memory can only be programmed once - design and prototype on a windowed CERDIP package (PIC16LC711-04I/P or PIC16LC711-04I/W) before committing to the SOIC-18 OTP version. Also note that the ADC shares its input pins with digital I/O; configure the corresponding TRISA bits as inputs and the ADCON1 register correctly before reading analog values. Brown-out Reset must be enabled in the configuration word for reliable cold-start behavior at low battery voltages.
Estimated: at 4 MHz clock, the 200 ns instruction cycle places a 5 MHz noise spectrum on the supply rail. Route the VDD trace in a star pattern from the regulator, with the 100 nF cap within 5 mm of pin 14. The OSC2 pin can output a clock at one-quarter of the oscillator frequency (RC mode); route this trace away from analog inputs to avoid ADC sampling interference. For CE/EMI-sensitive designs, surround the SOIC with a ground pour stitched with vias every 5 mm.
合規資訊
RoHS compliant per Microchip product page; SOIC package is Pb-free. Not AEC-Q100 qualified - not suitable for safety-critical automotive applications. Use PIC16F716-I/SO or dedicated automotive-grade parts for AEC-Q100 designs.