PIC24F08KL301T-I/MQ - 8KB Flash 16-bit MCU | Microchip
MPN： PIC24F08KL301T-I/MQ ✓ 啟用中PIC24F08KL301T-I/MQ 概覽
A 16-bit microcontroller (MCU) is a programmable embedded processor that executes instructions on 16-bit data paths, delivering higher arithmetic precision and richer peripheral integration than 8-bit MCUs while remaining more deterministic and lower-power than 32-bit Cortex-M parts. The PIC24F family sits in the wider PIC MCU taxonomy (PIC10/PIC12/PIC16/PIC18 -> PIC24 -> dsPIC/PIC32) and is commonly classified as a low-power 16-bit microcontroller with digital signal processing-friendly peripherals. It bridges the gap between the 8-bit PIC18 world and the higher-end PIC32 and dsPIC families.
Key features of the PIC24F08KL301T-I/MQ include 2 UART modules, 2 MSSP (I2C/SPI) peripherals, 3 CCP/ECCP modules for PWM and capture/compare, 2 analog comparators, 4 timers, a 10-bit ADC with 12 channels, and 256B of EEPROM emulation. nanoWatt XLP technology provides run currents under 350 uA/MHz at 1.8V, plus deep sleep modes in the sub-uA range, making the part ideal for battery-powered applications where quiescent current dominates lifetime.
Architecturally, the PIC24F08KL301T-I/MQ uses a modified Harvard architecture with separate program and data buses, a hardware multiply (16x16 -> 32-bit result) and a barrel shifter, plus a flexible peripheral pin-select structure. The 10-bit ADC and 2 analog comparators let designers implement mixed-signal front ends without external components, while the dual MSSP blocks allow simultaneous I2C/SPI master or slave traffic to two independent buses.
Typical applications include battery-powered sensor nodes, low-cost industrial control modules, home automation peripherals, wearable fitness bands, IoT end devices, and PIC18-to-PIC24 migration paths. The wide 1.8V-3.6V supply range allows direct operation from single-cell Li-Ion or two-AA cells.
When designing with this device, verify your IDE toolchain (MPLAB X with XC-TM compiler) supports the KL301 sub-family, since the PIC24F family has many sub-variants and not every compiler releases and libraries cover the KL silicon revision. Ensure VDDCORE decoupling follows the datasheet layout with a low-ESR 10uF bulk plus a 0.1uF ceramic close to the package.
This page consolidates datasheet specs, current distributor pricing as of 2026-09-29, drop-in same-package alternatives, and design notes not found in the standalone datasheet PDF.
直接替換替代品，適用於 PIC24F08KL301T-I/MQ — 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： PIC24F08KL301T-I/MQ （相同外形與佔位） — 差異在於 ADC, Package, I/O Pins, Core Architecture, Low-Power Technology.
PIC24F08KL301-I/MQ
✅ 直接替換聯絡詢價
查看資料表 →PIC24F08KL301T-E/MQ
✅ 直接替換📋 參考替代品（不在目錄中）
PIC24F08KL201T-I/MQ
✅ 直接替換聯絡詢價
查看資料表 →PIC24F08KL200T-I/MQ
✅ 直接替換📋 參考替代品（不在目錄中）
PIC24F04KL101T-I/MQ
✅ 直接替換聯絡詢價
查看資料表 →PIC24F08KL301T-I/MQ 最大額定值與電氣特性
| Core Architecture | PIC24 16-bit RISC (modified Harvard) |
| Program Memory (Flash) | 8 KB (2.75K x 24 instructions) |
| Data Memory (SRAM) | 1 KB |
| EEPROM | 256 B |
| Maximum CPU Speed | 32 MHz |
| Supply Voltage Range | 1.8 V to 3.6 V |
| I/O Pins | 17 |
| 封裝 | VQFN-20 (MQ) 5x5 mm |
| 安裝類型 | Surface Mount |
| ADC | 10-bit, 12 channels |
| UART Modules | 2 |
| MSSP Modules (I2C/SPI) | 2 |
| CCP/ECCP Modules | 3 |
| Analog Comparators | 2 |
| Timers | 4 (with PWM capability) |
| Low-Power Technology | nanoWatt XLP |
| Run Current | < 350 uA/MHz at 1.8 V |
| 工作溫度範圍 | -40C to +85C (Industrial) |
| Packaging Format | Tape & Reel |
PIC24F08KL301T-I/MQ 腳位配置
| 腳位 1 | RA0 — Digital I/O / analog input AN0 |
| 腳位 2 | RA1 — Digital I/O / analog input AN1 |
| 腳位 3 | RA2 — Digital I/O / analog input AN2 / VREF- |
| 腳位 4 | RA3 — Digital I/O / analog input AN3 / VREF+ |
| 腳位 5 | RA4 — Digital I/O / analog input AN4 |
| 腳位 6 | VDD — Positive supply (1.8V-3.6V) |
| 腳位 7 | VSS — Ground reference |
| 腳位 8 | OSCI — Crystal oscillator input / external clock |
| 腳位 9 | OSCO — Crystal oscillator output |
| 腳位 10 | RA5 — Digital I/O / analog input AN5 |
| 腳位 11 | RB0 — Digital I/O / interrupt-on-change |
| 腳位 12 | RB1 — Digital I/O / interrupt-on-change |
| 腳位 13 | RB2 — Digital I/O / interrupt-on-change |
| 腳位 14 | RB3 — Digital I/O / interrupt-on-change |
| 腳位 15 | RB4 — Digital I/O / interrupt-on-change |
| 腳位 16 | RB5 — Digital I/O / interrupt-on-change |
| 腳位 17 | RB6 — Digital I/O / ICSPCLK / interrupt-on-change |
| 腳位 18 | RB7 — Digital I/O / ICSPDAT / interrupt-on-change |
| 腳位 19 | RA6 — Digital I/O / analog input AN6 |
| 腳位 20 | RA7 — Digital I/O / analog input AN7 |
典型應用
PIC24F08KL301T-I/MQ 適用於 6 應用s: Battery-Powered IoT Sensor Node, Low-Cost Industrial Control Module, Home Automation Peripheral, Wearable Fitness Band, PIC18-to-PIC24 Migration Path, USB / User-Interface Hub Controller.
Battery-Powered IoT Sensor Node
The PIC24F08KL301T-I/MQ is a strong fit for battery-powered IoT sensor nodes because nanoWatt XLP technology delivers run currents under 350 uA/MHz at 1.8V and deep-sleep currents in the sub-microamp range. The 10-bit ADC handles temperature, light, or battery-voltage telemetry directly without an external front end, while the two MSSP peripherals allow simultaneous I2C sensor access and SPI link to a sub-GHz radio. Two UART channels provide debug logging or external modem connectivity. Compared with 32-bit Cortex-M0+ alternatives, the KL301 delivers lower sleep current at lower BOM cost, and its 8 KB Flash leaves room for over-the-air bootloader and application code on a single chip.
推薦
Low-Cost Industrial Control Module
For low-cost industrial control modules the PIC24F08KL301T-I/MQ provides three CCP/ECCP blocks capable of multi-channel PWM for motor valves or LED indicator dimming, plus two analog comparators for limit-switch or overcurrent detection without external op-amps. The 17 I/O lines comfortably drive multiple relays, optocouplers, and a status LED bank, and the dual UART lets the module host an RS-485 transceiver on one channel while leaving the second for diagnostic console output. Its 1.8V-3.6V supply range tolerates 24V industrial rails after a small LDO, and the industrial -40C to +85C rating covers most factory-floor enclosures.
推薦
Home Automation Peripheral
In home automation peripherals such as smart outlets, dimmers, and HVAC zone controllers the PIC24F08KL301T-I/MQ offers 17 I/O for multi-button or multi-LED human interfaces and three CCP/ECCP blocks to drive TRIAC, MOSFET, or zero-cross dimming. The MSSP peripherals connect to I2C sensors (e.g. temperature, humidity) and SPI EEPROM for configuration storage, while the 256B of on-chip EEPROM supports user-preference retention across power cycles. nanoWatt XLP lets a battery-backed remote run for years on a single coin cell, and the VQFN-20 (5x5 mm) footprint enables slim-line wall-switch form factors.
推薦
Wearable Fitness Band
For wearable fitness bands the PIC24F08KL301T-I/MQ's nanoWatt XLP deep-sleep current allows weeks of standby on a small Li-Ion cell while the 10-bit ADC samples heart-rate or motion signals at low duty cycle. The 32 MHz core is fast enough to run an on-device pedometer or simple step-detection algorithm in firmware without an external sensor-hub coprocessor, and 8 KB Flash accommodates BLE stack shim plus custom sensor logic. The compact VQFN-20 (5x5 mm) package plus wide 1.8-3.6V supply supports coin-cell and single-cell Li-Ion designs alike.
推薦
PIC18-to-PIC24 Migration Path
The PIC24F08KL301T-I/MQ is the recommended migration target for designers moving from PIC18F to PIC24F when they need 16-bit arithmetic, hardware multiply, and the KL family's PIC18-compatible peripheral set (MSSP, CCP/ECCP). Code can often be ported with the MPLAB XC16 compiler by reusing peripheral-driver logic, and the VQFN-20 footprint overlaps with several PIC18 packages so PCB rework is minimal. According to the Microchip product page, the KL family intentionally mirrors PIC18 peripherals to ease the transition, allowing a 16-bit upgrade without a complete firmware rewrite.
推薦
USB / User-Interface Hub Controller
In user-interface hubs for low-cost appliances the PIC24F08KL301T-I/MQ drives LED matrices via CCP PWM, scans capacitive or mechanical key matrices through GPIO, and uses the two MSSP blocks to interface to a host display or audio CODEC over I2C/SPI. The dual UART enables simultaneous firmware debug console and external module communication. With 8 KB Flash there is room for bootloader, key-scan debouncing, and protocol stacks in a single MCU, simplifying the BOM by replacing an 8-bit PIC plus external logic with one 16-bit device.
推薦
推薦產品摘要
工程參考資料，適用於 PIC24F08KL301T-I/MQ — 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 | PIC24F08KL301-I/MQ | PIC24F08KL301T-E/MQ | PIC24F08KL201T-I/MQ | PIC24F08KL200T-I/MQ | PIC24F04KL101T-I/MQ |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | VQFN-20 (MQ) 5x5 mm | VQFN-20 (MQ) - same | VQFN-20 (MQ) - same | VQFN-20 (MQ) - same | VQFN-20 (MQ) - same | VQFN-20 (MQ) - same |
| Flash Memory | 8 KB | 8 KB | 8 KB | 4 KB | 8 KB | 4 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 512 B | 1 KB | 1 KB |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| ADC | 10-bit, 12 channels | 10-bit, 12 channels | 10-bit, 12 channels | 10-bit, 12 channels | None | 10-bit |
主要差異化特點
- Highest Flash/RAM density in the KL series at 20-pin VQFN (對比PIC24F08KL201T-I/MQ)
- Includes 10-bit ADC whereas KL200 omits it (對比PIC24F08KL200T-I/MQ)
- Industrial temperature grade is the mainstream option (對比PIC24F08KL301T-E/MQ)
設計說明
Estimated: At 32 MHz and 3.3V the core consumes under 11 mA. Adding a 100 mA GSM module on the same rail, the LDO must hold at least 120 mA headroom. Use a low-IQ LDO such as MCP1700 for the MCU's VDD line so battery life is not compromised. Place a 10 uF bulk plus 0.1 uF ceramic close to the VDD/VSS pair on the VQFN exposed pad to keep digital switching noise from coupling into the analog rail.
The VQFN-20 5x5 mm package has an exposed thermal pad that must be soldered to the PCB ground plane to meet the datasheet thermal resistance. Without the pad the device derates aggressively. For environments above +70C ambient choose the PIC24F08KL301T-E/MQ extended grade part rated to +125C. Designers pushing the 32 MHz CPU at high duty cycle should verify junction temperature rise against the on-chip die thermal resistance value.
Estimated: Route the OSCI/OSCO traces as short, symmetric differential pairs to keep oscillator noise from coupling into nearby analog inputs. Keep digital switching lines at least 5 mm away from AN0-AN7 analog inputs and add a guard trace tied to ground if space is tight. The VQFN-20 EP must be soldered with proper paste coverage; Microchip's recommended land pattern (datasheet appendix) uses an array of vias in the EP to maximize thermal conduction.
Common pitfalls include forgetting to configure the analog pins as digital by clearing the corresponding ANSEL bits, leaving the ICD/ICSPDAT/ICSPCLK pins (RB6/RB7) configured as outputs and losing debugger access, and not enabling the WDT in safety-critical applications. When migrating from PIC18 to PIC24F, remember the configuration bit locations and naming differ - use the MPLAB X Configurable Logic tool to avoid inadvertently disabling code protection. Also, MSSP peripheral registers differ slightly from PIC18's MSSP module despite similar names.
合規資訊
Industrial -40C to +85C temperature grade per Microchip product page. AEC-Q100 not applicable for this consumer/industrial part - choose automotive-grade Q1 variants if needed.
