PIC16C711-20I/SO - 8-Bit 20MHz OTP MCU 1.75KB | Microchip
MPN: PIC16C711-20I/SO ✗ Cuối đờiPIC16C711-20I/SO Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data bus, integrating a CPU core, program memory, data RAM, and peripherals. The PIC16C7xx family sits inside Microchip's mid-range PIC® architecture (MCU -> microcontroller -> embedded processor -> semiconductor), distinguished by a 14-bit instruction word, a small 35-instruction RISC instruction set, and on-chip analog peripherals that eliminate the need for an external ADC. The OTP memory architecture allows one-time field programming, which historically targeted cost-sensitive high-volume production runs rather than prototyping.
Key differentiating features include the integrated 8-bit ADC with four input channels (saving BOM cost versus an external converter), a wide operating voltage range of 2.5V to 6.0V, low-power CMOS operation, and brown-out reset that prevents code execution corruption during supply droops. The 18-pin SOIC package provides a 7.50mm body width suited to through-hole-compatible hand-soldering or standard SMT assembly. Direct LED drive capability on each I/O pin simplifies user-interface and indicator designs without external drivers.
Architecturally, the PIC16C711 uses a Harvard-style separate program and data bus, a 14-bit-wide instruction word fetched from OTP EPROM, and a single 8-bit-wide data path to file registers. The integrated ADC uses a successive-approximation register (SAR) topology referenced to the supply voltage, with the conversion clock derived from the system oscillator. The brown-out reset block holds the device in reset until VDD exceeds a programmed threshold for reliable startup, mitigating brown-out-induced code corruption.
Typical applications include entry-level A/D subsystems in automotive sensors, industrial process control, white-goods and appliance controllers, and consumer-electronic devices where low cost, integrated analog, and compact packaging matter more than larger memory or USB connectivity. The wide 2.5V-6.0V supply range also enables direct battery-cell or regulated-5V designs. Designers migrating from larger PIC16C5x parts benefit from the larger instruction set, hardware stack, and interrupt controller.
When designing with this device, note that OTP memory is non-erasable - firmware must be 100% verified before programming. Programming requires a Microchip PIC programmer (or third-party equivalent) and the device must be operated within the 2.5V-6.0V supply window. For prototyping or in-system reprogrammability, designers should select a Flash-based sibling such as the PIC16F716 in the same 18-pin footprint.
This page synthesizes distributor pricing, drop-in same-package alternatives drawn from the PIC16C7xx family, application-specific design notes, and an FAQ compiled from real engineering queries - information not aggregated on any single manufacturer or distributor product page.
Bộ thay thế dễ dàng lắp đặt cho PIC16C711-20I/SO — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16C711-20I/SO (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, Operating Temperature, Timers, ADC.
PIC16C711-20/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C711-20I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C711-04I/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F716-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C715-20I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C711-20I/SO Tỷ lệ tối đa & tính chất điện
| Family | PIC16C7xx mid-range |
| Core | 8-bit PIC RISC |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 1.75 KB (1K x 14) |
| RAM Size | 68 bytes |
| Tần số xung maksimum | 20 MHz |
| Instruction Cycle Time | 200 ns at 20 MHz |
| I/O Pins | 13 |
| ADC | 8-bit, 4 channels |
| Timers | 8-bit Timer0 with 8-bit prescaler |
| Brown-out Reset (BOR) | Yes |
| Supply Voltage (VDD) | 2.5 V to 6.0 V |
| Nhiệt độ hoạt động | -40 C to +85 C (industrial) |
| Hộp | 18-pin SOIC (SO), 7.50 mm body |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 1 |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16C711-20I/SO
| Chân 1 | RA2/AN2 — Bidirectional I/O / analog input channel 2 |
| Chân 2 | RA3/AN3/VREF — Bidirectional I/O / analog input channel 3 / ADC reference |
| Chân 3 | RA4/T0CKI — Bidirectional I/O / Timer0 clock input (open-drain) |
| Chân 4 | MCLR/VPP — Master clear reset (active low) / programming voltage input |
| Chân 5 | VSS — Ground reference |
| Chân 6 | RB0/INT — Bidirectional I/O / external interrupt input |
| Chân 7 | RB1 — Bidirectional I/O |
| Chân 8 | RB2 — Bidirectional I/O |
| Chân 9 | RB3 — Bidirectional I/O |
| Chân 10 | RB4 — Bidirectional I/O |
| Chân 11 | RB5 — Bidirectional I/O |
| Chân 12 | RB6 — Bidirectional I/O |
| Chân 13 | RB7 — Bidirectional I/O |
| Chân 14 | VDD — Positive supply (2.5V to 6.0V) |
| Chân 15 | OSC2/CLKOUT — Oscillator output / clock output (crystal mode) |
| Chân 16 | OSC1/CLKIN — Oscillator input / external clock input |
| Chân 17 | RA0/AN0 — Bidirectional I/O / analog input channel 0 |
| Chân 18 | RA1/AN1 — Bidirectional I/O / analog input channel 1 |
Ứng dụng tiêu biểu
PIC16C711-20I/SO phù hợp cho 6 Áp dụngs: Automotive Sensor Interface, Industrial Process Control, White-Goods Appliance Controller, Consumer Electronic User Interface, Battery-Powered Measurement Device, HVAC Control Module.
Automotive Sensor Interface
The PIC16C711-20I/SO suits entry-level automotive sensor-conditioning modules because its 4-channel 8-bit ADC directly digitizes analog signals from thermistors, potentiometric throttle-position sensors, and resistive fluid-level probes. The industrial -40C to +85C temperature range covers cabin and under-hood-adjacent environments, and the 2.5V-6.0V supply range accepts both 5V regulator rails and 3.3V sub-systems. Brown-out reset prevents code corruption during cranking voltage dips of 4-6V, and the 13 I/O pins drive status LEDs, relay coils (via transistors), and LIN/CAN bus transceivers. Pin-to-pin migration to PIC16F716-I/SO provides Flash reprogrammability for late-stage calibration updates.
Được đề xuất
Industrial Process Control
For factory-floor analog monitoring and discrete control loops, the PIC16C711-20I/SO's 4-channel 8-bit ADC reads 4-20 mA current-loop or 0-10V process signals through simple resistor networks, while its 13 I/O pins operate relays, contactors, and indicator stacks. The 20 MHz clock supports 200 ns deterministic interrupt response, satisfying typical PLC scan-time requirements. Industrial-temperature operation to +85C tolerates cabinet environments, and the brown-out reset prevents spurious actuator commands during supply transients. The 1.75KB OTP program memory accommodates PID loop math, lookup tables, and a Modbus-style UART handler.
Được đề xuất
White-Goods Appliance Controller
The PIC16C711-20I/SO is well-matched to white-goods controller boards in washing machines, dishwashers, and microwave ovens where the integrated ADC senses water-level, temperature, and door-switch states while the 13 I/O pins drive triac-gate optos, buzzer PWM, and 7-segment LED multiplexed displays. The 2.5V-6.0V supply window accepts raw rectified 5V rails, and the wide 13 I/O budget eliminates the need for external I/O expanders. OTP memory locks production firmware against field tampering, and the 18-pin SOIC is hand-solderable for low-volume service replacement.
Được đề xuất
Consumer Electronic User Interface
In consumer products such as remote-control base stations, digital thermostats, and small kitchen appliances, the PIC16C711-20I/SO reads push-button matrices and rotary encoders through its 13 I/O pins, drives multiplexed LED or LCD indicators, and uses the on-chip ADC for thermistor-based temperature sensing. The 20 MHz throughput handles UI debouncing, menu state machines, and low-speed UART debug output without timing pressure. The 1.75KB OTP memory is sufficient for menu trees and fixed calibration data, while brown-out reset protects against wall-wart brown-outs.
Được đề xuất
Battery-Powered Measurement Device
The PIC16C711-20I/SO is suitable for handheld battery-powered measurement instruments (multimeters, tachometers, environmental monitors) because it draws low CMOS operating current, runs from 2.5V-6.0V (two AA cells through a boost converter, or a single Li-ion cell), and uses the integrated 8-bit ADC to digitize sensor signals. Brown-out reset prevents corrupted measurement logging when the battery reaches end-of-life voltage. Sleep-mode current is minimized by clocking the CPU from a low-frequency oscillator or sleeping between ADC conversions. The SOIC-18 package supports compact handheld PCB layouts.
Được đề xuất
HVAC Control Module
The PIC16C711-20I/SO integrates well into residential and light-commercial HVAC controllers where the 4-channel 8-bit ADC monitors return-air temperature, supply-air temperature, humidity sensors, and indoor air-quality sensors, while the 13 I/O pins drive relays for compressor contactors, fan-speed taps, and damper actuators. The wide operating temperature range covers equipment-room installations, and brown-out reset prevents compressor short-cycling during grid disturbances. The 20 MHz CPU executes PID control loops and EEPROM-parameter loading well within budget.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16C711-20I/SO — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC16C711-20/P | PIC16C711-20I/P | PIC16C711-04I/SO | PIC16F716-I/SO | PIC16C715-20I/SO |
|---|---|---|---|---|---|---|
| Package | 18-pin SOIC (SO) | 18-pin PDIP | 18-pin PDIP | 18-pin SOIC (same) | 18-pin SOIC (same) | 18-pin SOIC (same) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 1.75 KB OTP (1K x 14) | 1.75 KB OTP | 1.75 KB OTP | 1.75 KB OTP | 1.75 KB Flash (in-system programmable) | 2 KB OTP (1.14K x 14) |
| Maximum Clock Frequency | 20 MHz | 20 MHz | 20 MHz | 4 MHz | 20 MHz | 20 MHz |
| ADC | 8-bit, 4 channels | 8-bit, 4 channels | 8-bit, 4 channels | 8-bit, 4 channels | 8-bit, 4 channels | 8-bit, 4 channels |
| I/O Pins | 13 | 13 | 13 | 13 | 13 | 13 |
| RAM | 68 bytes | 68 bytes | 68 bytes | 68 bytes | 128 bytes | 80 bytes |
| Temperature Grade | Industrial (-40C to +85C) | Commercial (0C to +70C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) |
| Memory Type | OTP EPROM | OTP EPROM | OTP EPROM | OTP EPROM | Flash (in-system reprogrammable) | OTP EPROM |
| Approx. Unit Price (1pc) | $3.45 | $3.20 | $3.35 | $2.95 | $2.45 (active production) | $3.85 |
Bảo phân biệt quan trọng
- Integrated 4-channel 8-bit ADC eliminates external converter (vsPIC16F84A (no on-chip ADC))
- Brown-out reset (BOR) prevents code corruption at low VDD (vsPIC16C711-20E/SO (extended-temperature variant))
- 20 MHz instruction cycle supports 5 MIPS deterministic throughput (vsPIC16C711-04I/SO (4 MHz grade))
Ghi chú thiết kế
Place a 0.1 uF ceramic decoupling capacitor as close as physically possible to the VDD pin (pin 14) with a short ground return to the adjacent VSS pin (pin 5). For designs with switching loads (relays, solenoids) add a bulk 10 uF tantalum or aluminum electrolytic capacitor at the board's VDD entry point. The PIC16C711's brown-out reset (BOR) circuitry holds the part in reset until VDD rises above the BOR threshold, but PCB-level decoupling ensures clean supply during high-current transients that the BOR does not filter.
OTP EPROM is one-time-programmable and cannot be erased - any code bug, even a single bit error in the configuration word, bricks the device. Use windowed PIC16C711 variants for engineering development and verify firmware with the Microchip MPLAB simulator plus in-circuit emulation before programming production parts. Also note that the MCLR pin (pin 4) is active-low; tie it to VDD through a 10 kohm resistor for normal operation and provide a manual reset pushbutton if user-accessible reset is required. The VPP programming voltage must be applied to MCLR only during programming.
The SOIC-18 package has a 7.50 mm body width and 1.27 mm pin pitch - allocate at least 0.5 mm of clearance beyond the package outline on all sides for hand-soldering or 0.2 mm for reflow-only SMT. Place the crystal or resonator within 5 mm of pins 15-16 (OSC2/OSC1) to minimize parasitic capacitance, and route the ADC analog inputs (RA0-RA3, pins 17, 18, 1, 2) away from switching digital lines and the crystal traces. Add a ground plane on the bottom layer for supply decoupling and EMI suppression; the SOIC exposed bottom pad is not present so no thermal pad stitching is needed.
Thông tin tuân thủ
RoHS and lead-free compliant per Microchip product page. AEC-Q100 qualification not available for the PIC16C711 family - automotive applications should evaluate PIC16F716-I/SO or other AEC-Q100 qualified MCUs.
