PIC24FV32KA301-E/P - 32KB Flash 16-bit XLP MCU | Microchip
MPN： PIC24FV32KA301-E/P ✓ 啟用中PIC24FV32KA301-E/P 概覽
A PIC microcontroller is a compact programmable processor that integrates a CPU, non-volatile program memory, RAM, and I/O onto a single silicon die. The PIC24F series uses a 16-bit modified Harvard architecture with a rich peripheral set, sitting between 8-bit PIC MCUs and 32-bit offerings in Microchip's portfolio. Within the PIC24F family, the XLP variants add specialised low-power peripherals such as Deep Sleep Brown-Out Reset (DSBOR), Deep Sleep Watchdog Timer (DSWDT), and a Real-Time Clock and Calendar (RTCC) that continue to operate in Deep Sleep mode, enabling years of battery life on a single cell.
Key features of the PIC24FV32KA301-E/P include a 12-bit ADC with up to 16 channels, a Charge Time Measurement Unit (CTMU) for capacitive touch and precise time measurement, multiple serial interfaces (UART, SPI, I2C), and 17 general-purpose I/O pins. The device supports 5V operation (the FV designation), allowing direct interface with 5V logic and easing migration from legacy 8-bit designs. The internal oscillator reduces BOM cost and PCB area, while the wide operating range (2.0V-5.5V) supports battery-powered and energy-harvesting applications.
Technically, the PIC24FV32KA301-E/P uses a 16-bit RISC core with single-cycle execution (except for program branches), hardware stack, and a flexible interrupt controller with up to five interrupt sources. The CTMU provides a constant current source for capacitive touch sensing or precise time measurement, useful in human-interface designs. Deep Sleep current can drop below 1 uA with RTCC active, an industry-leading figure for this class of MCU.
Typical applications include battery-powered sensors, portable medical devices, remote controls, IoT edge nodes, capacitive touch user interfaces, and industrial control nodes. Designers choose this part when they need the combination of 5V-tolerant I/O, low deep-sleep current, and a generous memory complement in a familiar through-hole package that simplifies prototyping and hand-rework.
When designing with this part, prefer the internal RC oscillator with PLL for most applications to minimise external components, and reserve the RTCC for timekeeping during sleep. Use the CTMU for touch sensing and avoid high-source-impedance signals on ADC inputs to preserve conversion accuracy.
This page synthesises distributor pricing, drop-in compatible alternatives, and practical design considerations not found in the manufacturer datasheet alone.
直接替換替代品，適用於 PIC24FV32KA301-E/P — 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： PIC24FV32KA301-E/P （相同外形與佔位） — 差異在於 Package, ADC, Mounting Type, Program Memory (Flash), CTMU.
PIC24FV32KA301-I/P
✅ 直接替換聯絡詢價
查看資料表 →PIC24F32KA301-I/P
✅ 直接替換聯絡詢價
查看資料表 →PIC24FV32KA302-I/P
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC24FV16KA301-E/P
✅ 直接替換聯絡詢價
查看資料表 →PIC24FV32KA304-I/P
✅ 直接替換📋 參考替代品（不在目錄中）
PIC24FV32KA301-E/P 最大額定值與電氣特性
| Product Family | PIC24F XLP (eXtreme Low Power) |
| Core Architecture | 16-bit PIC modified Harvard RISC |
| Program Memory (Flash) | 32 KB (11K x 24 words) |
| RAM Size | 2 KB |
| EEPROM Size | 512 B |
| Maximum CPU Frequency | 32 MHz (16 MIPS) |
| Operating Voltage Range | 2.0 V to 5.5 V |
| Number of I/O Pins | 17 |
| ADC | 12-bit, up to 16 channels |
| CTMU | Yes (Charge Time Measurement Unit) |
| Oscillator Type | Internal (with PLL) |
| 工作溫度 | -40 C to +125 C (Extended, -E suffix) |
| 封裝 | 20-pin PDIP (0.300 in, 7.62 mm) |
| 安裝類型 | Through-Hole (THT) |
| Packaging | Tube |
| RoHS 狀態 | Compliant |
| Peripherals | UART, SPI, I2C, RTCC, CTMU, Comparators |
PIC24FV32KA301-E/P 腳位配置
| 腳位 1 | MCLR/RA5 — Master Clear (reset) input / RA5 input only |
| 腳位 2 | RA0 — I/O port A bit 0 / analog AN0 |
| 腳位 3 | RA1 — I/O port A bit 1 / analog AN1 |
| 腳位 4 | RA2 — I/O port A bit 2 / analog AN2 |
| 腳位 5 | RA3 — I/O port A bit 3 / analog AN3 / reference voltage |
| 腳位 6 | RA4 — I/O port A bit 4 / analog AN4 |
| 腳位 7 | VDD — Positive supply voltage (2.0-5.5 V) |
| 腳位 8 | VSS — Ground reference |
| 腳位 9 | OSC1/CLKI/RA7 — Crystal oscillator input / external clock input / RA7 |
| 腳位 10 | OSC2/CLKO/RA6 — Crystal oscillator output / RA6 |
| 腳位 11 | RB0 — I/O port B bit 0 / analog AN12 / PGED1 (programming) |
| 腳位 12 | RB1 — I/O port B bit 1 / analog AN8 / PGEC1 (programming) |
| 腳位 13 | RB2 — I/O port B bit 2 / analog AN9 |
| 腳位 14 | RB3 — I/O port B bit 3 / analog AN10 |
| 腳位 15 | RB4 — I/O port B bit 4 / analog AN11 |
| 腳位 16 | RB5 — I/O port B bit 5 / SDA1 (I2C data) |
| 腳位 17 | RB6 — I/O port B bit 6 / SCL1 (I2C clock) |
| 腳位 18 | RB7 — I/O port B bit 7 |
| 腳位 19 | RC0 — I/O port C bit 0 |
| 腳位 20 | RC1 — I/O port C bit 1 |
典型應用
PIC24FV32KA301-E/P 適用於 7 應用s: Battery-Powered IoT Sensor Nodes, Capacitive Touch Human-Machine Interface, Portable Medical and Health Devices, Industrial Control and Sensor Conditioning, Smart Home and Building Automation, Remote Controls and Consumer Electronics, Automotive Body and Comfort Electronics (Non-Safety).
Battery-Powered IoT Sensor Nodes
The PIC24FV32KA301-E/P's XLP technology with Deep Sleep current below 1 uA and peripherals like RTCC and DSBOR that operate while the core is asleep make it ideal for battery-powered IoT sensor nodes. The 32KB Flash accommodates BLE/Zigbee protocol stacks or LoRaWAN firmware, while the 2KB RAM handles sensor buffering. Operating from 2.0V to 5.5V supports direct connection to 3.6V lithium thionyl chloride primary cells typical in remote metering, agriculture, and asset-tracking deployments.
推薦
Capacitive Touch Human-Machine Interface
The integrated Charge Time Measurement Unit (CTMU) and 12-bit ADC enable robust capacitive touch sensing on the PIC24FV32KA301-E/P, eliminating dedicated touch ICs and reducing BOM cost. The 17 I/O pins support up to 12 touch channels with the CTMU, while the 32KB program memory fits Microchip's touch libraries and mTouch firmware. The 5V tolerance (FV designation) simplifies interface to industrial HMI panels and backlit LCDs requiring 5V drive levels.
推薦
Portable Medical and Health Devices
The PIC24FV32KA301-E/P's low deep-sleep current, 5V tolerance, and extended -40C to +125C temperature grade make it suitable for portable medical devices such as glucose meters, pulse oximeters, and patient wearables. The 12-bit ADC captures sensor signals with adequate resolution for clinical-grade measurements, and the 32KB Flash stores device firmware plus calibration data. Through-hole PDIP packaging simplifies prototyping and regulatory submissions requiring hand-reworkable prototypes.
推薦
Industrial Control and Sensor Conditioning
The PIC24FV32KA301-E/P's extended temperature range, 5V I/O tolerance, and CTMU make it a strong fit for industrial control modules including PLC signal conditioning, 4-20mA loop interfaces, and process sensor readouts. The 12-bit ADC with up to 16 channels handles multiple analog sensor inputs, while the UART/SPI/I2C peripherals connect to industrial transceivers like RS-485 or HART modems. The 20-pin PDIP simplifies field-replacement in legacy industrial installations.
推薦
Smart Home and Building Automation
The PIC24FV32KA301-E/P fits smart-home devices such as thermostats, security keypads, and lighting controllers thanks to its low quiescent current, 5V tolerance for relay/triac drive, and the CTMU for capacitive touch keypads. The 32KB Flash fits Zigbee/Z-Wave stacks or Matter-over-Thread application layers when used with external radio modules via SPI. The through-hole package supports low-volume custom-lighting and home-control products with hand-assembled prototypes.
推薦
Remote Controls and Consumer Electronics
The PIC24FV32KA301-E/P's XLP features enable years of battery life in remote controls, BLE beacons, and consumer wearables. The 32KB Flash accommodates infrared RC protocols (RC5, NEC, SIRC) plus Bluetooth Low Energy beacon firmware, while the CTMU supports capacitive touch buttons on remote enclosures. Wide 2.0V-5.5V operation allows direct use with two AA alkaline cells (3V) or single CR2032 (3V) without regulation.
推薦
Automotive Body and Comfort Electronics (Non-Safety)
While the PIC24FV32KA301-E/P is not AEC-Q100 qualified, designers use the extended -40C to +125C grade for non-safety automotive body applications such as ambient lighting controllers, seat-position memory modules, and HVAC blend-door actuators. The 5V tolerance (FV) interfaces directly with 12V battery rails after regulation, and the CTMU supports touch-sensitive door handles and mirror adjusters. For safety-critical applications choose a Q-graded PIC24 variant instead.
推薦
推薦產品摘要
工程參考資料，適用於 PIC24FV32KA301-E/P — 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 | PIC24FV32KA301-I/P | PIC24F32KA301-I/P | PIC24FV32KA302-I/P | PIC24FV16KA301-E/P | PIC24FV32KA304-I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-pin PDIP | 20-pin PDIP - same | 20-pin PDIP - same | 20-pin PDIP - same | 20-pin PDIP - same | 20-pin PDIP - same |
| Flash Memory | 32 KB | 32 KB | 32 KB | 32 KB | 16 KB (-50%) | 32 KB |
| RAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| Operating Voltage | 2.0-5.5 V (5V tolerant) | 2.0-5.5 V (5V tolerant) | 2.0-3.6 V (3.3V only) | 2.0-5.5 V (5V tolerant) | 2.0-5.5 V (5V tolerant) | 2.0-5.5 V (5V tolerant) |
| Temperature Range | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) |
| CTMU | Yes | Yes | Yes | Yes | Yes | Yes |
| Pin Count | 20 | 20 | 20 | 20 | 20 | 20 (304 family also offers 28/44/48) |
主要差異化特點
- Extended temperature range with 5V tolerance in 20-pin PDIP (對比PIC24FV32KA301-I/P)
- Full 5V I/O tolerance versus 3.3V-only operation (對比PIC24F32KA301-I/P)
- Larger Flash for bootloader and dual-image firmware (對比PIC24FV16KA301-E/P)
- Software-compatible with KA304 family for future pin-count migration (對比PIC24FV32KA302-I/P)
設計說明
Estimated: at 32MHz, VDD=3.3V the core draws approximately 8-12 mA active. To maximise runtime on battery, leverage the XLP Sleep and Deep Sleep modes - Deep Sleep with RTCC active draws well under 1 uA per the PIC24FV32KA304 family datasheet. Use the DSBOR and DSWDT to maintain supervisory functions during sleep and configure wake-up sources carefully to balance responsiveness versus quiescent current.
Place decoupling capacitors (100 nF ceramic plus 10 uF bulk) as close as possible to pins 7 (VDD) and 8 (VSS). For the 20-pin PDIP, route the crystal traces (OSC1/OSC2, pins 9-10) short and symmetric, with a ground guard ring around the crystal to suppress EMI coupling. Keep the MCLR trace short and add the typical 10 kohm pull-up to VDD with a 100 nF cap to ground for noise immunity.
Do not assume the FV variant's 5V tolerance applies to all pins equally - VDD must remain within 2.0-5.5V for the internal regulators to operate. Always configure unused I/O pins as outputs (not inputs) to avoid parasitic current draw, and ensure the PGC/PGD pins (RB0/RB1) are not left floating during programming/debug sessions to prevent inadvertent reset. Verify the configuration bits in code to enable the desired oscillator mode and watchdog behaviour.
When using the CTMU for capacitive touch, keep the touch sensor traces short and shielded with a ground pour to minimise parasitic capacitance. Route analog inputs (AN0-AN12) away from digital switching traces and use the dedicated analog reference pin for ADC measurements requiring high absolute accuracy. For UART lines exceeding a few inches, add series termination resistors to reduce ringing.
合規資訊
RoHS and REACH compliant per Microchip product environmental information. Not AEC-Q100 qualified - choose a Q-graded variant for safety-critical automotive applications.
