PIC16F1705-E/P - 8-bit 32MHz XLP MCU 14KB Flash DIP-14 | Microchip
MPN: PIC16F1705-E/P ✓ Hoạt độngPIC16F1705-E/P Tóm tắt
A PIC microcontroller (Programmable Interface Controller) is a class of 8/16/32-bit RISC microcontrollers originally developed by Microchip and widely used in embedded systems for control-oriented tasks such as sensor interfacing, motor control, and low-power IoT endpoints. Within the Microchip taxonomy, the PIC16F1705 belongs to the PIC16F1 mid-range enhanced family, which adds Core Independent Peripherals (CIPs) such as CLC, COG, and Zero-Cross Detect to the traditional PIC16 mid-range core, enabling autonomous hardware-level task execution.
Key differentiating specifications include 14KB (8K x 14 words) Flash, 1024 bytes SRAM, 32MHz maximum CPU speed (8 MIPS), a 10-bit ADC with computation, two on-chip op-amps, an 8-bit DAC, a high-speed comparator, two CCP modules producing complementary PWM output, plus CLC, COG, ZCD, PPS, and EUSART peripherals with I2C/SPI support. The device operates from 2.3V to 5.5V, supports nanoWatt XLP sleep modes with sub-uA currents, and includes a 32kHz LFINTOSC for low-power timing.
Architecturally, the PIC16F1705 implements an enhanced mid-range 8-bit RISC core with a 14-bit instruction word, hardware multiplier, and Interrupt-on-Change (IOC) on most I/O pins. Core Independent Peripherals (CLC, COG, NCO, ZCD, CWG) operate without CPU intervention, allowing deterministic event handling while the CPU remains in sleep, which is critical for ultra-low-power sensor nodes. Peripheral Pin Select (PPS) provides flexible signal routing on the limited 14-pin package.
Typical applications include consumer white goods (sensor front-ends, AC zero-cross detection with the ZCD peripheral and dimming using COG), low-power battery-powered IoT nodes that exploit the XLP sleep current, capacitive-touch user interfaces driven by on-chip op-amps and the ADC with computation, and small BLDC/PWM motor-control loops where the on-chip op-amp amplifies current-sense feedback. Industrial sensor conditioning and LED driver control are common use cases.
Designers should plan for adequate decoupling (100 nF plus 10 uF bulk near VDD), in-circuit serial programming (ICSP) header with separate PGED/PGEC lines, and use of PPS to remap EUSART and PWM to convenient pins. For EMI robustness, place a ferrite bead on VDD if operating near a switching converter.
This page synthesizes distributor pricing, Microchip cross-reference data, side-by-side parametric comparison against same-package alternatives, and PCB/EMC design notes that go beyond the manufacturer datasheet, giving an engineer everything needed to evaluate and adopt the PIC16F1705-E/P in production.
Bộ thay thế dễ dàng lắp đặt cho PIC16F1705-E/P — 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 PIC16F1705-E/P (cùng hình factor và footprint) — khác nhau ở ADC, Core Independent Peripherals, Operating Temperature, Package, DAC.
PIC16F1704-E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1709-E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1705-I/P
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF1705-E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1705-E/P Tỷ lệ tối đa & tính chất điện
| Core | PIC16F 8-bit enhanced mid-range RISC |
| Program Memory | 14 KB Flash (8K x 14 words) |
| SRAM | 1024 bytes |
| Maximum CPU Speed | 32 MHz (8 MIPS) |
| Supply Voltage Range | 2.3 V to 5.5 V |
| Nhiệt độ hoạt động | -40 C to +125 C (Extended, -E suffix) |
| ADC | 10-bit with computation |
| DAC | 8-bit |
| On-chip Op-Amps | 2 |
| Comparators | High-speed comparator |
| PWM/CCP Modules | 2 CCP (complementary PWM via COG) |
| Communication Peripherals | EUSART (I2C/SPI) |
| Core Independent Peripherals | CLC, COG, ZCD, PPS |
| Hộp | PDIP-14 (through-hole) |
| Kiểu lắp đặt | Through-Hole |
| Cấp MSL | Not applicable (through-hole) |
Cấu hình chân PIC16F1705-E/P
| Chân 1 | RA3/MCLR — Master Clear (reset) input, or digital I/O RA3 |
| Chân 2 | RA5 — Digital I/O RA5 / AN4 / C1IN0- |
| Chân 3 | RA4 — Digital I/O RA4 / AN3 |
| Chân 4 | RA2 — Digital I/O RA2 / AN2 / DAC1OUT1 / ZCD |
| Chân 5 | RA1 — Digital I/O RA1 / AN1 / OPA1OUT |
| Chân 6 | RA0 — Digital I/O RA0 / AN0 / OPA1IN0+ |
| Chân 7 | VSS — Ground reference |
| Chân 8 | RA7/OSC1 — Digital I/O RA7 / crystal oscillator input |
| Chân 9 | RA6/OSC2 — Digital I/O RA6 / crystal oscillator output |
| Chân 10 | RC2 — Digital I/O RC2 / AN6 / OPA2OUT |
| Chân 11 | RC1 — Digital I/O RC1 / AN5 / CCP2 |
| Chân 12 | RC0 — Digital I/O RC0 / CCP1 |
| Chân 13 | RC3 — Digital I/O RC3 / SCL/SCK |
| Chân 14 | VDD — Positive supply voltage |
Ứng dụng tiêu biểu
PIC16F1705-E/P phù hợp cho 6 Áp dụngs: Battery-Powered IoT Sensor Nodes, AC Zero-Cross Light Dimmer, Capacitive Touch User Interface, Small BLDC or DC Motor Control, Industrial Sensor Conditioning, Consumer White Goods Control.
Battery-Powered IoT Sensor Nodes
The PIC16F1705-E/P is ideal for battery-powered IoT sensor nodes because it combines nanoWatt XLP sleep currents (sub-uA typical) with on-chip op-amps that directly condition analog sensors without external active components. The 32 kHz LFINTOSC and 10-bit ADC with computation enable periodic sensor wake-and-sample cycles at low average current, while the 14KB Flash accommodates BLE/Zigbee stack stubs or LoRa SX1276 driver firmware. Placement: a single 3V CR2032 cell feeds VDD directly through a 100 nF decoupling capacitor; the on-chip op-amp buffers a thermistor bridge, with the ADC triggering a measurement every 10 seconds. Performance benefit: average current draw below 2 uA when sampling a temperature sensor once per minute, extending battery life to multiple years.
Được đề xuất
AC Zero-Cross Light Dimmer
The PIC16F1705-E/P suits AC zero-cross dimming because it integrates a Zero-Cross Detect (ZCD) peripheral that generates a hardware interrupt on each mains half-cycle, freeing the CPU from polling. The Complementary Output Generator (COG) produces dead-band-corrected PWM for a TRIAC gate driver, while the on-chip op-amp scales the dimmer potentiometer input to the ADC range. The device operates directly from a rectified 5V rail. Performance benefit: closed-loop phase-angle control with better than 1% dimming linearity and sub-50us ZCD response latency, well within the typical AC zero-cross detection window of 100us.
Được đề xuất
Capacitive Touch User Interface
The PIC16F1705-E/P supports capacitive touch user interfaces through its on-chip op-amps and 10-bit ADC with computation, which together implement the mTouch charge-time measurement technique without external components. The CLC peripheral can autonomously trigger a scan and wake the CPU only on touch, while the 32 MHz HFINTOSC provides sufficient resolution for stable proximity detection. The 14-pin PDIP footprint allows hand-soldered prototyping. Performance benefit: button-to-button scan time below 5 ms across 4-5 channels, with standby current dominated by the LFINTOSC and CLC wake-on-touch logic.
Được đề xuất
Small BLDC or DC Motor Control
The PIC16F1705-E/P fits small motor-control loops by combining the on-chip op-amp for current-sense amplification, the CCP modules producing complementary PWM with hardware dead-band (via COG), and the high-speed comparator for back-EMF zero-cross detection. The 32 MHz CPU and 8 MIPS throughput close a current control loop well under 10us, while the 10-bit ADC samples the shunt at the PWM center. The 14KB Flash stores state-machine firmware plus tuning tables. Performance benefit: a single-chip 24V/2A BLDC or brushed-DC motor drive, eliminating the need for a dedicated motor-control DSP.
Được đề xuất
Industrial Sensor Conditioning
The PIC16F1705-E/P serves industrial 4-20 mA loop and bridge-sensor conditioning applications because its on-chip op-amp directly amplifies low-level bridge outputs (typ. 1-10 mV/V), and the 10-bit ADC with computation provides hardware averaging and threshold compare that offloads the CPU. The -40C to +125C extended operating range meets industrial environmental specs. The EUSART transmits the digitized reading via RS-485. Performance benefit: a complete single-MCU bridge-sensor transmitter module in a 14-pin PDIP, eliminating a dedicated analog front-end ASIC.
Được đề xuất
Consumer White Goods Control
The PIC16F1705-E/P is suited to cost-sensitive consumer appliances such as coffee makers, rice cookers, and small kitchen appliances, where it reads push-buttons via ADC, drives a triac-controlled heater via COG PWM, and reads an NTC thermistor through one of the on-chip op-amps. The XLP sleep modes minimize standby power to meet energy-star limits, while the 14-pin PDIP through-hole package supports hand-repair-friendly designs. Performance benefit: a $1 BOM MCU replacing a $3 specialized controller while retaining the same user-experience feature set.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F1705-E/P — 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 | PIC16F1704-E/P | PIC16F1709-E/P | PIC16F1705-I/P | PIC16LF1705-E/P |
|---|---|---|---|---|---|
| Package | PDIP-14 | PDIP-14 - same | PDIP-14 - same | PDIP-14 - same | PDIP-14 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 14 KB | 7 KB (-50%) | 32 KB (+129%) | 14 KB (same) | 14 KB (same) |
| SRAM | 1024 bytes | 512 bytes (-50%) | 2048 bytes (+100%) | 1024 bytes (same) | 1024 bytes (same) |
| Supply Voltage Range | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V |
| Operating Temperature | -40 C to +125 C (Extended) | -40 C to +125 C | -40 C to +125 C | -40 C to +85 C (Industrial) | -40 C to +125 C |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| On-chip Op-Amps | 2 | 2 (same) | 2 (same) | 2 (same) | 2 (same) |
Bảo phân biệt quan trọng
- Doubles Flash memory vs PIC16F1704-E/P while keeping same peripherals (vsPIC16F1704-E/P)
- Half the Flash of PIC16F1709-E/P for cost-sensitive designs (vsPIC16F1709-E/P)
- Extended temperature range vs industrial -I grade (vsPIC16F1705-I/P)
- Wider supply voltage range vs low-voltage LF variant (vsPIC16LF1705-E/P)
Ghi chú thiết kế
The PIC16F1705-E/P supply rail should be decoupled with a 100 nF X7R ceramic placed within 5 mm of the VDD pin and a bulk 10 uF tantalum or ceramic on the same node. For battery applications, an MCP1700 LDO provides a clean 3.3 V rail from a CR2032 with only 1.6 uA quiescent current, preserving the nanoWatt XLP sleep budget. Estimated: at 32 MHz active current ~2.2 mA and sleep current ~0.6 uA, a CR2032 (220 mAh) yields ~5 years with 1% duty cycle.
For the 14-pin PDIP footprint, keep the ICSP header footprint separate from the main board so that the device can be reprogrammed without desoldering: route PGED (RA0/ICSPCLK) and PGEC (RA1/ICSPDAT) to a 2x3 0.1-inch header. Place the decoupling capacitor return trace directly to the VSS pin (pin 7) using a wide short path to avoid ground bounce. If using HFINTOSC, leave the OSC1/OSC2 pins unconnected for EMI reduction.
The MCLR pin (pin 1) requires a 10 kohm pull-up to VDD for normal operation; if left floating the device will randomly reset. Configure unused I/O pins as outputs low (not inputs) to minimize current leakage. The PPS peripheral must be unlocked via PPSLOCK before remapping; failure to do so silently ignores register writes. Finally, ensure the ADC reference voltage is stable - tying VREF+ to VDD requires the VREF module to be enabled in firmware.
When the PIC16F1705-E/P is colocated with a switching converter, place a ferrite bead (e.g., BLM18PG221SN1) in series with VDD and add a 100 nF Y-cap to chassis ground for conducted EMI suppression. For TRIAC-driven loads, route the ZCD input trace away from TRIAC gate traces to avoid dv/dt coupling. The COG peripheral generates complementary outputs with programmable dead-band - set at least 1 us dead-band to prevent cross-conduction in the external half-bridge.
Thông tin tuân thủ
RoHS and lead-free status per Microchip ordering information. Not AEC-Q100 qualified (industrial grade only); choose automotive-qualified PIC alternatives for vehicle applications. REACH compliance confirmed by Microchip product declarations.
