PIC16F1824-I/ML - 8-Bit 32MHz 7KB Flash MCU QFN-16 | Microchip
MPN： PIC16F1824-I/ML ✓ 啟用中PIC16F1824-I/ML 概覽
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, RAM, and peripherals such as timers, ADC, and communication interfaces on a single die. PIC microcontrollers from Microchip use a RISC-based Harvard architecture with separate program and data memory paths, allowing instruction fetch and operand access to occur in the same clock cycle. The 'enhanced mid-range' 8-bit core executes one instruction per cycle (typically 200 ns at 20 MHz, or 125 ns at 32 MHz) and supports C-friendly programming via MPLAB X IDE + XC8 compiler. Within the broader product hierarchy, the PIC16F1824 sits as a low-power general-purpose MCU: microcontroller -> embedded controller -> semiconductor -> integrated circuit.
Key features include 384 bytes of RAM, 256 bytes of EEPROM, mTouch capacitive touch sensing, two rail-to-rail I/O banks with selectable weak pull-ups, a DAC module, a comparator module with selectable references, and a low-power sleep current typically below 30 nA in RTCC mode. The internal 16 MHz and 32 MHz oscillators enable designs without an external crystal, while a software-tunable HFINTOSC trim register allows frequency fine-tuning for USB-friendly or asynchronous timing scenarios. The device also supports in-circuit serial programming (ICSP) via standard 5-pin PICkit headers.
Architecturally, the PIC16F1824 uses a 14-bit instruction word optimized for code density, supporting 49 instructions with hardware multiply and indirect addressing. The device integrates a 4x PLL on HFINTOSC, allowing 8 MHz internal clock to be multiplied to 32 MHz for instruction throughput, which is the headroom behind the 32 MHz / 8 MIPS specification. The nanoWatt XLP technology provides multiple power-managed modes (Run, Idle, Sleep, and Deep Sleep with RTCC), giving designers granular control over active vs standby current, which is critical for energy-harvesting and battery-backed designs.
Typical applications include mTouch capacitive touch buttons and sliders, low-power IoT sensor nodes with battery or energy harvesting supply, LED lighting controllers, small appliances, and consumer electronic remote controls. Industrial applications include 4-20 mA loop signal conditioning, HVAC sensor nodes, and USB-ICD-style debug peripherals. The wide 2.5 V to 5.5 V supply tolerance permits unregulated Li-ion battery or 5 V regulated rails.
When designing with the PIC16F1824-I/ML, ensure the QFN-16 exposed thermal paddle (EP) is soldered to a sufficiently large copper pour for mechanical reliability and thermal dissipation; the package has no gull-wing leads, so hand rework is not feasible. For programming/debug, use PICkit 3, MPLAB ICD 3, or MPLAB Snap with the standard ICSP header pattern documented in the Microchip ICD specification.
This page synthesizes verified distributor pricing, parametric same-package drop-in alternatives from the Microchip PIC16F182x family, and practical PCB/thermal design notes not found in the manufacturer datasheet alone, helping procurement engineers and embedded designers evaluate the PIC16F1824-I/ML against other 8-bit MCU options in the same QFN-16 footprint.
直接替換替代品，適用於 PIC16F1824-I/ML — 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/ML （相同外形與佔位） — 差異在於 Package, ADC, Internal Oscillator, Core Architecture, I/O Pins.
PIC16F1824-E/ML
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16F1825-I/ML
✅ 直接替換聯絡詢價
查看資料表 →PIC16F1823-I/ML
✅ 直接替換聯絡詢價
查看資料表 →PIC16F1824-I/MLVAO
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16F18426T-I/ML
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16F1824-I/ML 最大額定值與電氣特性
| Core Architecture | Enhanced Mid-Range 8-bit PIC |
| Instruction Set Width | 14-bit |
| Maximum CPU Frequency | 32 MHz |
| Performance | 8 MIPS |
| Program Memory (Flash) | 7 KB (4K x 14) |
| Data RAM | 384 bytes |
| EEPROM | 256 bytes |
| I/O Pins | 12 |
| Supply Voltage Range | 2.5 V to 5.5 V |
| ADC | 10-bit, up to 11 channels |
| Timers | 2x 8-bit, 1x 16-bit |
| PWM Modules | Enhanced CCP/SCCP |
| Communication Interfaces | EUSART, I2C, SPI |
| Capacitive Touch | mTouch hardware support |
| Internal Oscillator | 32 MHz HFINTOSC with 4x PLL, ±1% |
| 工作溫度 | -40C to +85C (Industrial -I) |
| 封裝 | 16-pin QFN (ML) 4x4 mm, 0.90 mm height |
| 安裝類型 | Surface Mount |
| MSL 等級 | 1 |
| RoHS 狀態 | Compliant |
PIC16F1824-I/ML 腳位配置
| 腳位 1 | RA5 — GPIO RA5/AN4/SS/HCOUT |
| 腳位 2 | RA4 — GPIO RA4/AN3/T0CKI |
| 腳位 3 | RA3 — GPIO RA3/AN2/VREF+/T1G/MDMIN |
| 腳位 4 | RA2 — GPIO RA2/AN1/T1CKI |
| 腳位 5 | RA1 — GPIO RA1/AN0/ICSPCLK |
| 腳位 6 | RA0 — GPIO RA0/AN1/ICSPDAT |
| 腳位 7 | VSS — Ground |
| 腳位 8 | VDD — Positive supply voltage |
| 腳位 9 | RA7 — GPIO RA7/OSC1/CLKI |
| 腳位 10 | RA6 — GPIO RA6/OSC2/CLKO |
| 腳位 11 | RC5 — GPIO RC5 |
| 腳位 12 | RC4 — GPIO RC4 |
| 腳位 13 | RC3 — GPIO RC3/CCP1/SCL/SCK |
| 腳位 14 | RC2 — GPIO RC2/CCP1/SDA/SDI |
| 腳位 15 | RC1 — GPIO RC1/SO/TX/CK |
| 腳位 16 | RC0 — GPIO RC0/RX/DT |
典型應用
PIC16F1824-I/ML 適用於 6 應用s: mTouch Capacitive Touch Buttons and Sliders, Battery-Powered IoT Sensor Nodes, LED Lighting Controllers, Small Appliance Controllers, Consumer Remote Controls, HVAC Sensor Nodes.
mTouch Capacitive Touch Buttons and Sliders
The PIC16F1824-I/ML's integrated CTMU hardware block and mTouch library support enable reliable capacitive touch sensing on PCB pads without external analog components. Designers can implement 4-8 touch buttons or a small slider with 32 MHz CPU throughput for debouncing and gesture algorithms. The 384-byte RAM is sufficient for capacitive state machines; the 7 KB Flash accommodates the mTouch stack plus application logic. Place a 100 nF bypass cap on VDD and a 10 nF filter on each touch channel for noise immunity; the QFN-16 EP paddle must be grounded for stable CTMU readings.
推薦
Battery-Powered IoT Sensor Nodes
The PIC16F1824-I/ML's nanoWatt XLP technology delivers typical sleep currents below 30 nA in RTCC mode and active currents under 1 mA at 32 MHz, making it well-suited for coin-cell or energy-harvesting sensor nodes. The 2.5 V to 5.5 V supply range tolerates depleted Li-coin cells and unregulated Li-ion down to UVLO. The internal 32 MHz HFINTOSC eliminates the need for an external crystal in most designs, reducing BOM and standby leakage. The 10-bit ADC with 11 channels supports thermistor, photodiode, and gas sensor signal chains directly.
推薦
LED Lighting Controllers
The PIC16F1824-I/ML's enhanced PWM/SCCP modules and 32 MHz instruction rate enable multi-channel LED dimming with 10-bit resolution at refresh rates above 1 kHz to avoid flicker. The EUSART and I2C peripherals support DMX-512, DALI, or I2C-based LED driver ICs like the LP8860-Q1. The 7 KB Flash easily fits lighting state machines with smooth fade algorithms; the wide 2.5-5.5 V supply range allows direct Li-ion or 5 V USB powering. Use a 4x4 mm QFN-16 footprint to fit compact MR16/GU10 bulb PCBs.
推薦
Small Appliance Controllers
The PIC16F1824-I/ML integrates all peripherals needed for small home appliances: 10-bit ADC for sensor reading, PWM for motor or heater control, EUSART for user-interface display modules, and I2C for sensor expanders. The -40C to +85C industrial temperature grade handles kitchen and laundry environments. The on-chip EEPROM stores user settings and fault logs across power cycles. The enhanced mid-range core's deterministic interrupt latency ensures reliable AC zero-crossing detection for triac-based load control.
推薦
Consumer Remote Controls
The PIC16F1824-I/ML's mTouch sensing and low-power Sleep modes are ideal for TV remote controls or wireless key fobs where capacitive buttons replace mechanical switches. The 32 MHz HFINTOSC supports IR carrier generation at 38 kHz without an external crystal; the 12 I/O pins drive IR LEDs and accept user button inputs. Sleep currents under 30 nA in RTCC mode extend coin-cell battery life to multi-year durations. The QFN-16 4x4 mm footprint fits slim remote PCBs behind membrane touch panels.
推薦
HVAC Sensor Nodes
The PIC16F1824-I/ML's industrial -40C to +85C temperature range and 2.5-5.5 V supply tolerance suit HVAC sensor nodes measuring temperature, humidity, and airflow in residential or commercial systems. The EUSART supports RS-485 transceivers for industrial bus networks; the 10-bit ADC reads multiple analog sensors simultaneously. The 7 KB Flash accommodates sensor linearization tables and Modbus protocol stacks. The QFN-16 EP provides reliable mechanical mounting on outdoor HVAC PCBs with thermal cycling.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16F1824-I/ML — 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/ML | PIC16F1825-I/ML | PIC16F1823-I/ML | PIC16F1824-I/MLVAO | PIC16F18426T-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | QFN-16 (ML) 4x4 mm | QFN-16 (ML) 4x4 mm - same | QFN-16 (ML) 4x4 mm - same | QFN-16 (ML) 4x4 mm - same | QFN-16 (ML) 4x4 mm - same | QFN-16 (ML) 4x4 mm - same |
| Core | Enhanced Mid-Range 8-bit | Enhanced Mid-Range 8-bit | Enhanced Mid-Range 8-bit | Enhanced Mid-Range 8-bit | Enhanced Mid-Range 8-bit | Next-gen Mid-Range 8-bit |
| Max CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Flash Memory | 7 KB | 7 KB | 14 KB | 3.5 KB | 7 KB | 28 KB |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
主要差異化特點
- Lowest-power QFN-16 8-bit MCU in its class (對比PIC16F1823-I/ML)
- Industrial temperature option upgradeable to extended grade (對比PIC16F1824-E/ML)
- Pin-compatible upgrade path with double Flash (對比PIC16F1825-I/ML)
設計說明
Estimated: The PIC16F1824-I/ML dissipates very low power - typical active current under 4 mA at 32 MHz with 3.3 V supply yields roughly 13 mW. The QFN-16 EP thermal resistance is approximately 38 C/W (junction to ambient on a 1 sq inch 2-layer PCB), so junction temperature rises only ~0.5 C above ambient. For most touch-sensing and IoT applications no heatsinking is needed. The exposed thermal paddle (EP) MUST be soldered to a sufficient copper pour (minimum 1 sq cm) for both mechanical reliability and thermal dissipation, since there are no gull-wing leads for mechanical stress relief.
Place a 100 nF ceramic decoupling capacitor as close as possible (within 3 mm) to the VDD pin (pin 8) and a bulk 4.7 uF or larger capacitor on the same VDD net for transient suppression. The QFN-16 EP is internally connected to VSS and must be soldered to a PCB ground pour that is continuous through the EP land pattern. For mTouch capacitive sensing applications, route touch sensor traces with width <= 0.25 mm and keep them isolated from noisy digital and power traces by at least 2 mm to prevent false touch events.
Do not confuse the PIC16F1824-I/ML (QFN-16 4x4) with the PIC16F1824-I/P (14-pin PDIP) - they share the same die but have different pinouts and pin counts. Designers migrating from PDIP to QFN must re-assign pin functions because the QFN has 12 I/O vs 11 I/O on the PDIP. Also, ensure the unused comparator/DAC outputs are configured as digital I/O or set to analog-disabled state to minimize current leakage. Finally, configure the PPS (Peripheral Pin Select) registers correctly when using remappable peripherals like EUSART, otherwise peripheral signals will not appear on the expected pins.
合規資訊
RoHS and lead-free compliant per Microchip product page. Standard -I grade is not AEC-Q100 qualified - for automotive applications use PIC16F1824-E/ML (extended temperature) or VAO suffix variants. Halogen-free and conflict-minerals-compliant per Microchip environmental compliance documents.
