PIC16F1824-I/ST - 8-Bit 32MHz 7KB Flash MCU | Microchip 14-TSSOP
MPN： PIC16F1824-I/ST ✓ 啟用中PIC16F1824-I/ST 概覽
An 8-bit microcontroller (MCU) is a small computing device that integrates a CPU, program memory (typically 1K–64K of Flash), data RAM, and a configurable I/O subsystem on a single silicon die. PIC microcontrollers use a RISC architecture with a Harvard-style separated program/data bus and execute one instruction per clock (except branches), which simplifies deterministic timing and interrupts. PIC MCUs sit inside the microcontroller hierarchy as small-form-factor, low-power devices, between simple logic ICs and 32-bit application processors.
Key features include a 32 MHz internal oscillator (no external crystal required), 12 I/O pins with peripheral pin select (PPS), 2 capture/compare/PWM modules, an 8-channel 10-bit ADC, an 8-bit DAC, multiple communication peripherals (I2C™, SPI™, AUSART), and ultra-low-power sleep modes drawing sub-microamp currents. The mTouch™ peripheral supports capacitive-touch buttons and sliders without external analog components, while the XLP nanoWatt technology provides typical sleep currents below 50 nA. The 14-TSSOP package keeps PCB area small and is compatible with hand-rework and low-cost prototyping.
The architecture uses an enhanced mid-range 14-bit instruction set with a hardware multiplier, a 16-level hardware stack, and vectored interrupts. The 32 MHz core provides 8 million DMIPS per MHz across most instructions, which is sufficient for sensor polling, simple state machines, and peripheral glue logic. The PPS register map allows peripheral signals (UART, PWM, SPI, comparators) to be remapped to any available I/O pin, simplifying PCB routing.
Typical applications include capacitive-touch user interfaces (buttons, sliders, proximity sensors), consumer appliances, battery-powered remote controls, sensor nodes, LED lighting controllers, and small motor-control loops. The combination of on-board peripherals and XLP sleep modes supports long battery-life products such as wireless thermostats and IoT endpoints.
When designing with this part, ensure MCLR is tied to VDD through a 10 kΩ pull-up for normal operation or pulled low for ICSP programming, and provide a 0.1 µF decoupling capacitor on every VDD pin as close to the package as possible. Programming is supported via ICSP using MPLAB X IDE and tools such as PICkit™ 3, MPLAB ICD 3, or the MPLAB Snap programmer. Alternately, the on-chip debug logic lets an engineer debug code without a separate debug header. This page combines distributor pricing, drop-in PIC14 same-package alternatives, and design considerations not found in the manufacturer datasheet alone.
直接替換替代品，適用於 PIC16F1824-I/ST — 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： PIC16F1824-I/ST （相同外形與佔位） — 差異在於 ADC, Package, Core Architecture, DAC, MSL Level.
PIC16F1824-E/ST
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16F1824T-I/ST
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16F1825-I/ST
✅ 直接替換聯絡詢價
查看資料表 →PIC16F1823-I/ST
✅ 直接替換聯絡詢價
查看資料表 →PIC16F1704-I/ST
✅ 直接替換聯絡詢價
查看資料表 →PIC16F1824-I/ST 最大額定值與電氣特性
| Core Architecture | PIC enhanced mid-range 8-bit |
| Family | PIC16F182X (XLP, mTouch) |
| Program Memory | 7 KB (4K x 14 words) Flash |
| Data RAM | 256 bytes |
| Data EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz (8 MIPS) |
| Operating Voltage Range | 1.8 V to 5.5 V |
| I/O Pins | 12 |
| ADC | 8-channel, 10-bit |
| DAC | 1 x 5-bit / 8-bit DAC module |
| Timers | 4 (Timer0, Timer1, Timer2, Timer4/Timer6) |
| Capture/Compare/PWM | 2 ECCP + 1 CCP modules |
| Communication | 1x I2C, 1x SPI, 1x AUSART |
| Internal Oscillator | 32 MHz, 31 kHz LF (HF + LF + PLL) |
| 封裝 | 14-TSSOP (ST) |
| 工作溫度 | -40 °C to +85 °C (Industrial, 'I' suffix) |
| 安裝類型 | Surface Mount |
| MSL 等級 | 1 (unlimited floor life) |
| RoHS 狀態 | Compliant |
| Programming/Debug | ICSP, 4-wire ICD, on-chip debug |
PIC16F1824-I/ST 腳位配置
| 腳位 1 | VDD — Positive supply voltage (1.8 V to 5.5 V) |
| 腳位 2 | RA5 — Bidirectional I/O / ICSPDAT (programming data) |
| 腳位 3 | RA4 — Bidirectional I/O / OCM1B output |
| 腳位 4 | RA3 — Bidirectional I/O / MCLR (master clear reset, active low) |
| 腳位 5 | RC5 — Bidirectional I/O |
| 腳位 6 | RC4 — Bidirectional I/O |
| 腳位 7 | RC3 — Bidirectional I/O |
| 腳位 8 | RC2 — Bidirectional I/O |
| 腳位 9 | RC1 — Bidirectional I/O / OCM1C |
| 腳位 10 | RC0 — Bidirectional I/O |
| 腳位 11 | RA2 — Bidirectional I/O |
| 腳位 12 | RA1 — Bidirectional I/O / ICSPCLK (programming clock) |
| 腳位 13 | RA0 — Bidirectional I/O |
| 腳位 14 | VSS — Ground reference |
典型應用
PIC16F1824-I/ST 適用於 7 應用s: Capacitive-Touch User Interface, Battery-Powered IoT Sensor Node, LED Lighting Controller, Small Motor Control (Fans, Pumps), Consumer Appliance Control, Remote Control / RF Transmitter, Industrial Sensor Conditioning.
Capacitive-Touch User Interface
The PIC16F1824-I/ST fits capacitive-touch user interfaces because its integrated mTouch™ peripheral supports up to 8 capacitive sensing channels with hardware auto-scanning, and its XLP nanoWatt technology delivers typical sleep currents below 50 nA per Microchip datasheet (DS41419A). Placed as the main controller behind a glass or plastic overlay, the 32 MHz core polls sensors in milliseconds while spending most of the duty cycle in sleep, extending coin-cell life in remote controls, kitchen appliances, and smart switches. Unlike discrete capacitive-touch ICs, the 7 KB Flash holds both the touch firmware and the application state machine.
推薦
Battery-Powered IoT Sensor Node
The PIC16F1824-I/ST serves battery-powered IoT sensor nodes because its XLP nanoWatt technology and 1.8 V to 5.5 V operating voltage allow direct connection to a single lithium coin cell, while its 8-channel 10-bit ADC reads temperature, light, and humidity sensors per Microchip datasheet (DS41419A). Compared to discrete sensor front-ends plus a wireless transceiver MCU, the 1824 integrates the entire analog signal chain and runs sleep at under 50 nA, extending shelf-life for years. The on-chip 32 MHz oscillator eliminates external crystals and the 14-TSSOP package fits in <10 mm PCB housings.
推薦
LED Lighting Controller
The PIC16F1824-I/ST drives LED lighting controllers because its two ECCP/CCP modules generate PWM dimming signals on multiple channels with 10-bit resolution, and its 32 MHz core supports smooth logarithmic dimming curves per Microchip datasheet (DS41419A). Compared to dedicated LED drivers, the 1824 allows custom CCT and circadian control logic, while its mTouch inputs allow touchless dimming. The XLP sleep mode keeps standby power below 50 nA for always-on smart bulbs, and the 14-TSSOP fits behind small LED PCBs.
推薦
Small Motor Control (Fans, Pumps)
The PIC16F1824-I/ST drives small motor control loops because its ECCP module generates complementary PWM at 32 MHz for brushed DC motors, and the integrated 10-bit ADC samples back-EMF for closed-loop speed control per Microchip datasheet (DS41419A). Compared to discrete motor-driver logic, the 1824 keeps BOM cost low by replacing a comparator plus timing IC plus MCU. The wide 1.8 V to 5.5 V operating range supports both 3.3 V logic fans and 5 V USB-powered designs.
推薦
Consumer Appliance Control
The PIC16F1824-I/ST fits consumer appliance control because its 32 MHz CPU, 12 I/O, and 2 ECCP modules handle keypads, displays, relays, and small loads in appliances such as coffee makers, blenders, and air purifiers per Microchip datasheet (DS41419A). Compared to mechanical timers plus logic ICs, the 1824 replaces several chips with one MCU plus firmware, reducing board area and BOM cost. Its industrial -40 to +85 °C grade covers most kitchen environments and the 14-TSSOP fits small enclosures.
推薦
Remote Control / RF Transmitter
The PIC16F1824-I/ST functions as the host controller in remote controls because its XLP sleep mode draws <50 nA, allowing multi-year battery life in IR/RF remotes that wake on button press per Microchip datasheet (DS41419A). The 32 MHz core generates accurate 38 kHz carrier for IR or OOK modulation for sub-GHz radios through the AUSART, and the mTouch inputs enable capacitive-button remotes. Compared to dedicated encoder ICs, the 1824 is programmable, supporting any protocol through firmware updates.
推薦
Industrial Sensor Conditioning
The PIC16F1824-I/ST performs industrial sensor conditioning because its 8-channel 10-bit ADC, 5-bit DAC, and 1.8 V to 5.5 V range suit 4-20 mA loops, thermistors, and bridge sensors per Microchip datasheet (DS41419A). Compared to a discrete op-amp + ADC + MCU solution, the 1824 integrates all stages in a TSSOP-14, cutting BOM cost and PCB area. The hardware multiplier and 32 MHz core execute linearization math in real time.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16F1824-I/ST — 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 | PIC16F1824-E/ST | PIC16F1824T-I/ST | PIC16F1825-I/ST | PIC16F1823-I/ST | PIC16F1704-I/ST |
|---|---|---|---|---|---|---|
| Package | 14-TSSOP (ST) | 14-TSSOP (ST) - same | 14-TSSOP (ST) - same | 14-TSSOP (ST) - same | 14-TSSOP (ST) - same | 14-TSSOP (ST) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 7 KB (4K x 14) | 7 KB (4K x 14) | 7 KB (4K x 14) | 7 KB (4K x 14) | 3.5 KB (2K x 14) | 4 KB (2K x 14) |
| RAM | 256 B | 256 B | 256 B | 256 B | 128 B | 256 B |
| Max CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| I/O Pins | 12 | 12 | 12 | 12 | 10 | 12 |
| Operating Temperature | -40 °C to +85 °C (I) | -40 °C to +125 °C (E) | -40 °C to +85 °C (I) | -40 °C to +85 °C (I) | -40 °C to +85 °C (I) | -40 °C to +85 °C (I) |
| ADC Channels | 8 x 10-bit | 8 x 10-bit | 8 x 10-bit | 8 x 10-bit | 8 x 10-bit | 8 x 10-bit |
| AEC-Q100 | Not qualified (I grade) | Not qualified (E grade) | Not qualified (I grade) | Not qualified (I grade) | Not qualified (I grade) | Not qualified (I grade) |
| Approximate 1k+ price (USD) | $0.85 | $1.05 | $0.85 | $0.92 | $0.78 | $0.74 |
主要差異化特點
- mTouch™ capacitive sensing peripheral on-board (對比PIC16F1823-I/ST)
- Largest Flash in the 14-TSSOP PIC16F182X family (對比PIC16F1704-I/ST)
- Industrial temperature grade at industrial-grade price (對比PIC16F1824-E/ST)
設計說明
Place a 0.1 µF decoupling capacitor on VDD (pin 1) within 3 mm of the package, plus a bulk 1 µF to 10 µF tantalum or ceramic capacitor on the same VDD trace. Pin 14 (VSS) should connect to a low-impedance ground plane with no cuts or vias under the device. For noise-sensitive analog I/O, route analog signals (RA0, RA1) away from PWM outputs (RA4, RC1, RC2) and provide a guard trace tied to analog ground when possible.
Do not leave the MCLR pin (pin 3, RA3) floating, because noise can trigger spurious resets. Connect MCLR to VDD through a 10 kΩ pull-up resistor for normal operation, or to the ICSP header through a series 10 kΩ resistor for in-circuit programming per Microchip PIC16F1824 datasheet (DS41419A). For low-power designs, MCLR must be held high (above 0.7 × VDD) for reliable operation; otherwise the device stays in reset.
PPS (peripheral pin select) remapping lets the AUSART, SPI, and I2C signals be assigned to any available I/O pin, simplifying PCB layout. However, once a peripheral pin is selected, the underlying LAT/TRIS registers still control drive strength; configure unused pins as outputs (driving low) to minimize current consumption. For capacitive touch (mTouch) channels, configure the pin as analog by clearing the ANSEL bit and ensure the sensor trace is surrounded by a ground guard.
The PIC16F1824-I/ST sleep currents are typically 30 nA at 3 V, rising to 50 nA at 5.5 V with WDT, BOR, and Timer1 disabled. Active current at 32 MHz and 3.3 V is roughly 4 mA, dropping to 1 mA at 1 MHz. For battery-powered designs, drive the device from a 3.0 V CR2032 or two AA cells; the 1.8 V minimum VDD lets the part run down to end-of-life of alkaline cells, extracting all usable energy.
合規資訊
RoHS compliant per Microchip product page. Industrial -40 to +85 °C grade is not AEC-Q100 qualified; choose automotive-qualified variants (PIC16F1824-E/ST) for AEC-Q100 customer use. Halogen-free per Microchip packaging datasheet.
