PIC16F1705-E/P - 8-bit 32MHz XLP MCU 14KB Flash DIP-14 | Microchip
料号： PIC16F1705-E/P ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.66 | $16.60 |
| 100 | $1.48 | $148.00 |
| 500 | $1.33 | $665.00 |
| 1,000 | $1.18 | $1,180.00 |
PIC16F1705-E/P 概述
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.
直接替换替代料： PIC16F1705-E/P ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC16F1705-E/P （相同外形与封装尺寸） ——差异在于 ADC, Core Independent Peripherals, Operating Temperature, Package, DAC.
快速对比工具——选择替代料号进行并排对比：
PIC16F1704-E/P
✅ 直接替换✓ 有现货
$0.85 / 个
查看数据手册 →PIC16F1709-E/P
✅ 直接替换✓ 有现货
$1.53 / 个
查看数据手册 →PIC16F1705-I/P
✅ 直接替换📋 参考替代料（不在目录中）
PIC16LF1705-E/P
✅ 直接替换✓ 有现货
$1.38 / 个
查看数据手册 →PIC16F1705-E/P 最大额定值与电气特性
| 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 |
| 工作温度 | -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 |
| 封装 | PDIP-14 (through-hole) |
| 安装类型 | Through-Hole |
| MSL 等级 | Not applicable (through-hole) |
PIC16F1705-E/P 引脚配置
| 引脚 1 | RA3/MCLR — Master Clear (reset) input, or digital I/O RA3 |
| 引脚 2 | RA5 — Digital I/O RA5 / AN4 / C1IN0- |
| 引脚 3 | RA4 — Digital I/O RA4 / AN3 |
| 引脚 4 | RA2 — Digital I/O RA2 / AN2 / DAC1OUT1 / ZCD |
| 引脚 5 | RA1 — Digital I/O RA1 / AN1 / OPA1OUT |
| 引脚 6 | RA0 — Digital I/O RA0 / AN0 / OPA1IN0+ |
| 引脚 7 | VSS — Ground reference |
| 引脚 8 | RA7/OSC1 — Digital I/O RA7 / crystal oscillator input |
| 引脚 9 | RA6/OSC2 — Digital I/O RA6 / crystal oscillator output |
| 引脚 10 | RC2 — Digital I/O RC2 / AN6 / OPA2OUT |
| 引脚 11 | RC1 — Digital I/O RC1 / AN5 / CCP2 |
| 引脚 12 | RC0 — Digital I/O RC0 / CCP1 |
| 引脚 13 | RC3 — Digital I/O RC3 / SCL/SCK |
| 引脚 14 | VDD — Positive supply voltage |
典型应用
PIC16F1705-E/P 适用于 6 应用s: 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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： PIC16F1705-E/P ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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) |
关键差异点
- Doubles Flash memory vs PIC16F1704-E/P while keeping same peripherals （对比 PIC16F1704-E/P)
- Half the Flash of PIC16F1709-E/P for cost-sensitive designs （对比 PIC16F1709-E/P)
- Extended temperature range vs industrial -I grade （对比 PIC16F1705-I/P)
- Wider supply voltage range vs low-voltage LF variant （对比 PIC16LF1705-E/P)
设计说明
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.
合规信息
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.
