PIC16F1786-E/SS - 8-Bit 32MHz MCU 14KB Flash 28-SSOP | Microchip
MPN: PIC16F1786-E/SS ✓ Hoạt độngPIC16F1786-E/SS Tóm tắt
A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory (Flash), volatile data memory (RAM), and integrated peripherals such as timers, ADCs, and communication interfaces. PIC16F1786 belongs to the enhanced mid-range PIC16 family using Microchip's RISC-based Harvard architecture, which separates program and data buses to enable single-cycle instruction fetching and one MIPS per MHz performance. The 8-bit MCU category sits below 16-bit (PIC24, MSP430) and 32-bit (Cortex-M) devices in both performance and price, making it ideal for cost-sensitive embedded control.
Key features include 14KB self-programmable Flash with code protection, 256-byte true EEPROM with endurance up to 1M erase/write cycles, an integrated operational amplifier (OPAMP) module with selectable bandwidth, an 8-bit DAC with rail-to-rail output, two fast comparators with 50ns response time, and a 12-bit ADC with up to 11 channels. The device supports an extended operating voltage range of 1.8V to 5.5V with the integrated Low-Power XLP (eXtreme Low Power) technology, achieving sub-uA sleep currents for battery-powered applications.
Typical applications include industrial sensor conditioning using the on-chip op-amp and ADC, consumer appliances requiring touch or capacitive sensing, low-power IoT sensor nodes, motor control via PWM and fast comparators, and LED lighting systems using the 8-bit DAC for dimming. The 32MHz operation delivers 8 MIPS, sufficient for real-time control loops under 1ms.
When designing with this MCU, ensure decoupling capacitors (100nF and 10uF) are placed close to VDD/VSS, configure the configuration bits correctly for oscillator selection and code protection, and use the ICSP pins (ICSPCLK/ICSPDAT) for in-circuit programming. Avoid driving the MCLR pin low during normal operation unless intentional reset is required.
This page synthesizes distributor pricing, parametric comparisons, drop-in alternatives, and practical design notes that complement rather than duplicate the manufacturer datasheet. Engineers evaluating alternatives will find the comparison table and selection guide especially useful for BOM consolidation or supply risk mitigation.
Bộ thay thế dễ dàng lắp đặt cho PIC16F1786-E/SS — 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 PIC16F1786-E/SS (cùng hình factor và footprint) — khác nhau ở ADC, Package, I/O Pins, Comparators, DAC.
PIC16F1786-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1786-E/SP
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F1716-E/SS
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16F1708-E/SS
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16F1769-E/P
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16F1786-E/SS Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC16 enhanced mid-range (8-bit RISC Harvard) |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data Memory (RAM) | 1 KB |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz (8 MIPS) |
| Instruction Cycle | 200 ns |
| Operating Voltage Range | 1.8 V to 5.5 V |
| I/O Pins | 24 |
| ADC | 12-bit, up to 11 channels |
| DAC | 8-bit, rail-to-rail |
| Comparators | 2x with 50 ns response time |
| Op-Amps | 1x integrated, selectable bandwidth |
| Timers | 8-bit and 16-bit, capture/compare/PWM |
| Communication Interfaces | I2C, SPI, AUSART (EUSART) |
| Hộp | 28-SSOP (5.30 mm body width) |
| Khoảng nhiệt độ hoạt động | -40C to +125C (E = Extended) |
| Cấp MSL | 1 |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16F1786-E/SS
| Chân 1 | MCLR/Vpp — Master Clear (reset) input / programming voltage input |
| Chân 2 | RA0/AN0 — PORTA bit 0 / Analog input 0 |
| Chân 3 | RA1/AN1 — PORTA bit 1 / Analog input 1 |
| Chân 4 | RA2/AN2 — PORTA bit 2 / Analog input 2 |
| Chân 5 | RA3/AN3 — PORTA bit 3 / Analog input 3 |
| Chân 6 | RA4/AN4 — PORTA bit 4 / Analog input 4 |
| Chân 7 | RA5/AN5 — PORTA bit 5 / Analog input 5 |
| Chân 8 | VSS — Ground reference |
| Chân 9 | RA7/OSC1 — PORTA bit 7 / Oscillator crystal input |
| Chân 10 | RA6/OSC2 — PORTA bit 6 / Oscillator crystal output |
| Chân 11 | RC0 — PORTC bit 0 |
| Chân 12 | RC1 — PORTC bit 1 |
| Chân 13 | RC2 — PORTC bit 2 |
| Chân 14 | RC3 — PORTC bit 3 |
| Chân 15 | RC4 — PORTC bit 4 |
| Chân 16 | RC5 — PORTC bit 5 |
| Chân 17 | RC6 — PORTC bit 6 |
| Chân 18 | RC7 — PORTC bit 7 |
| Chân 19 | VSS — Ground reference |
| Chân 20 | VDD — Positive power supply |
| Chân 21 | RB0 — PORTB bit 0 |
| Chân 22 | RB1 — PORTB bit 1 |
| Chân 23 | RB2 — PORTB bit 2 |
| Chân 24 | RB3 — PORTB bit 3 |
| Chân 25 | RB4 — PORTB bit 4 |
| Chân 26 | RB5 — PORTB bit 5 |
| Chân 27 | RB6/ICSPCLK — PORTB bit 6 / In-Circuit Serial Programming clock |
| Chân 28 | RB7/ICSPDAT — PORTB bit 7 / In-Circuit Serial Programming data |
Ứng dụng tiêu biểu
PIC16F1786-E/SS phù hợp cho 6 Áp dụngs: Industrial Sensor Signal Conditioning, Battery-Powered IoT Sensor Node, BLDC Motor Control with Fast Comparators, LED Lighting Dimming Controller, Consumer Appliance Control Board, Automotive Sensor Interface Module.
Industrial Sensor Signal Conditioning
The PIC16F1786-E/SS is well suited for analog sensor conditioning thanks to its integrated op-amp (selectable bandwidth), 12-bit ADC with up to 11 channels, and rail-to-rail 8-bit DAC. Place the MCU between the sensor bridge and a 4-20mA loop with the on-chip op-amp configured as a gain stage to amplify low-level signals (e.g., 10mV/V load cell output) before ADC sampling. The 32MHz CPU delivers 8 MIPS, more than adequate for 1kHz digital filtering and linearization algorithms. Designers should bias the op-amp input within the common-mode range (0.3V to VDD-0.3V) and use the reference voltage output to excite the bridge for ratiometric measurement, achieving better than 0.1% accuracy. The XLP sleep current under 1uA enables duty-cycled sampling for battery-powered field transmitters.
Được đề xuất
Battery-Powered IoT Sensor Node
The PIC16F1786-E/SS XLP technology enables battery lifetimes of years on 2xAA cells when using the deep sleep modes with sub-uA current consumption. Configure the MCU to wake from RTCC, watchdog timer, or external interrupts, take a sensor reading through the 12-bit ADC, transmit via the integrated AUSART/I2C, and return to sleep. The 14KB Flash holds a custom protocol stack and over-the-air update bootloader, while the 256-byte EEPROM stores calibration constants and node IDs. Compared to a Cortex-M0+ alternative, this PIC16 consumes significantly less sleep current (50nA typical in sleep) and costs less than $2. For very low duty-cycle applications (one transmission per hour), battery life can exceed 5 years.
Được đề xuất
BLDC Motor Control with Fast Comparators
Use the PIC16F1786-E/SS 50ns comparators as zero-cross detectors for back-EMF sensing in sensorless BLDC motor commutation. The integrated op-amp amplifies the shunt-resistor current signal for cycle-by-cycle overcurrent protection, while the PWM modules drive the three-phase inverter at up to 32kHz switching frequency. With 8 MIPS CPU throughput, FOC (field-oriented control) and trapezoidal commutation both run comfortably. The 12-bit ADC samples phase currents with sufficient resolution for smooth torque control. The 1.8V to 5.5V supply range simplifies designs powered directly from 2-cell Li-Ion or 3-cell NiMH packs.
Được đề xuất
LED Lighting Dimming Controller
The PIC16F1786-E/SS 8-bit DAC and PWM channels combine to implement smooth logarithmic dimming curves for LED luminaires with excellent color consistency. Use the DAC as a precision current reference and PWM for high-resolution brightness control, eliminating flicker visible to the human eye. The 32MHz core supports DMX512, DALI, or 0-10V lighting protocol decoding in software without external controllers. The 1.8V to 5.5V range allows operation directly from LED driver auxiliary rails. Compared to a dedicated LED driver IC, this PIC16F1786 design adds wireless control, sensor-driven daylight harvesting, and field-upgradeable firmware at minimal incremental cost.
Được đề xuất
Consumer Appliance Control Board
Consumer appliances like coffee makers, washing machines, and induction cooktops benefit from the PIC16F1786-E/SS integrated op-amp, fast comparators, and ADC for temperature and pressure sensing. The 14KB Flash accommodates user interface state machines, fault diagnostics, and EEPROM-backed configuration. The 28-SSOP package is small enough for compact consumer enclosures while still being hand-solderable for low-volume repair. Brown-out Reset (BOR) and watchdog timer provide robust operation in harsh AC-line environments. The -40C to +125C extended temperature range supports under-cabinet or garage appliance placement.
Được đề xuất
Automotive Sensor Interface Module
The PIC16F1786-E/SS -40C to +125C extended temperature range and integrated analog peripherals make it suitable for non-safety-critical automotive sensor interface modules such as interior lighting controllers, seat occupancy sensors, and HVAC blend-door actuators. The 12-bit ADC and op-amp condition thermistor and position-sensor signals directly, while PWM channels drive the actuator. Note that for safety-critical ADAS applications, an AEC-Q100 qualified part such as PIC16F1786-E/SSVAO or a dedicated automotive MCU like dsPIC33 is required. The integrated AUSART supports LIN-bus slave communication for body-electronics networks.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F1786-E/SS — 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 | PIC16F1786-I/SS | PIC16F1716-E/SS | PIC16F1708-E/SS | PIC16F1769-E/P |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Flash Memory | 14 KB | 14 KB | 14 KB | 7 KB | 14 KB |
| RAM | 1 KB | 1 KB | 1 KB | 512 B | 1 KB |
| Maximum CPU Speed | 32 MHz (8 MIPS) | 32 MHz (8 MIPS) | 32 MHz (8 MIPS) | 32 MHz (8 MIPS) | 32 MHz (8 MIPS) |
| Operating Temperature | -40C to +125C | -40C to +85C | -40C to +125C | -40C to +125C | -40C to +125C |
| Integrated Op-Amp | Yes | Yes | No | No | No |
| ADC Resolution | 12-bit | 12-bit | 10-bit | 10-bit | 10-bit |
| DAC | 8-bit rail-to-rail | 8-bit rail-to-rail | 5-bit | None | 5-bit |
| Unit Price (qty 1) | 3.42 USD | 3.42 USD | 3.18 USD | 2.74 USD | 3.28 USD |
Bảo phân biệt quan trọng
- Integrated op-amp eliminates external analog front-end (vsPIC16F1708-E/SS)
- 12-bit ADC versus 10-bit alternatives (vsPIC16F1716-E/SS)
- 8-bit rail-to-rail DAC for analog output (vsPIC16F1769-E/P)
Ghi chú thiết kế
Estimated: at VDD=5V and active CPU at 32MHz, the PIC16F1786-E/SS core current is approximately 6 mA. Add 2 mA typical for ADC active, totaling 8 mA. Decoupling requires a 100nF ceramic (X7R) within 3mm of each VDD/VSS pair (pins 8/19 and 20/19) plus a bulk 10uF tantalum or ceramic at the supply rail. For battery applications, configure the VREG to disable unused analog blocks and use the DOZE mode to scale CPU clock, reducing active current to under 2 mA. Always tie unused I/O pins to VSS through a 10k resistor or configure as outputs low to prevent floating-input shoot-through current.
Estimated: the 28-SSOP package has a thermal resistance of approximately 95 C/W theta_JA on a standard 2-layer JEDEC test board, and around 45 C/W on a 4-layer board with continuous ground plane. At 8 mA active current and 5V supply, dissipation is 40 mW yielding a junction rise of 4 C above ambient on the 4-layer board. The Extended -40C to +125C operating temperature range leaves more than 120 C of headroom for typical embedded designs. For automotive under-hood applications, prioritize thermal copper pours and avoid placing heat-generating components (power inductors, LDOs) within 5mm of the MCU.
Place the ICSP connector (6-pin RJ-11 or 0.1 inch header) at the board edge so the PICkit programmer can attach without removing the enclosure. Route the ICSPCLK (RB6) and ICSPDAT (RB7) traces as short as possible (under 50mm) and keep them away from switching power traces. The MCLR pin requires a 10k pull-up to VDD and a 100nF capacitor to ground for noise immunity; do not omit these even if external reset is unused, because the ICSP relies on MCLR being driven low during programming. Reserve a 2x3 0.1 inch header footprint for ICSP even on production boards for field updates.
Common pitfalls with PIC16F1786-E/SS include: (1) forgetting to configure CONFIG1 and CONFIG2 bits, leaving the MCU in default LVP mode and blocking high-voltage programmer access; (2) exceeding the 5.5V absolute maximum on any I/O pin when interfacing 5V signals with the part running at 3.3V; (3) leaving the on-chip op-amp output floating when unused, which causes shoot-through and added supply current; (4) failing to clear the BOR flag after a brown-out event, masking the root cause of unexpected resets; (5) using the internal oscillator without calibration, leading to UART baud rate errors exceeding 2%. Always use MPLAB X MCC to generate validated configuration code.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Not AEC-Q100 qualified in the -E/SS industrial variant - select PIC16F1786-E/SSVAO for automotive. Lead-free and halogen-free per Microchip environmental compliance documentation.
