PIC24F32KA301-I/SS - 16-bit XLP 32KB Flash MCU, 20-SSOP | Microchip
N.º da peça: PIC24F32KA301-I/SS ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $3.74 | $3,74 |
| 10 | $3.36 | $33,60 |
| 100 | $2.99 | $299,00 |
| 500 | $2.69 | $1.345,00 |
| 1.000 | $2.39 | $2.390,00 |
| 3.000 | $2.19 | $6.570,00 |
PIC24F32KA301-I/SS Visão geral
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, volatile and non-volatile memory, and configurable peripherals on one die. The PIC24F family uses a 16-bit modified Harvard architecture with a 24-bit instruction word, giving higher code density than 8-bit MCUs while staying cheaper and lower-power than most 32-bit Cortex-M parts. The "F" suffix denotes Flash program memory; XLP is Microchip's branding for nanoWatt eXtreme Low Power techniques such as Deep Sleep, Sleep, Idle, and alternate clock modes. Within the power-management IC hierarchy, this MCU sits above simple voltage regulators but below application processors, providing intelligent control for sensors, displays, and low-rate RF interfaces.
Key features of the PIC24F32KA301-I/SS include industry-leading Deep Sleep current (typical values in the nanoamp-to-low-microamp range), 16 MIPS throughput at 32 MHz, an integrated CTMU for capacitive touch or precise time-of-flight measurement, a 12-bit A/D converter with multiple input channels, and multiple serial interfaces (UART, SPI, I2C). The device supports on-chip debugging via two programming/debug pins and is firmware-compatible across the PIC24F K-series, allowing easy migration between pin counts and memory sizes.
Typical applications include battery-powered sensor nodes, wearable health monitors, remote controls, low-power wireless sensor networks, e-paper/e-ink display controllers, and IoT edge nodes. The 20-SSOP footprint is well suited to compact handheld products where board area is at a premium. The CTMU peripheral is particularly attractive for implementing touch buttons, sliders, or proximity sensing without external analog ICs, reducing BOM cost and quiescent drain.
Designers should follow Microchip's recommended decoupling practice (typically a 0.1 µF ceramic plus a bulk capacitor near VDD) and consult the device-specific datasheet for the exact Deep Sleep current at the chosen VDD and temperature. For firmware reuse and migration paths, review the PIC24F KA/KM family reference manual; this part is part of a broader pin-compatible family ranging from 20 to 48 pins.
This page synthesizes distributor pricing, drop-in alternatives, pinout, and practical design notes for the PIC24F32KA301-I/SS that are not consolidated in any single manufacturer document.
Alternativas drop-in para PIC24F32KA301-I/SS — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC24F32KA301-I/SS (mesmo formato e footprint) — diferindo em Package, ADC, Operating Temperature, Program Memory (Flash), Timers.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC24F32KA301T-I/SS
✅ Drop-In✓ Em estoque
$1.92 / unidade
Ver ficha técnica →PIC24F16KA101-I/SS
✅ Drop-In✓ Em estoque
$2.74 / unidade
Ver ficha técnica →PIC24F16KA101T-I/SS
✅ Drop-In✓ Em estoque
$1.38 / unidade
Ver ficha técnica →PIC24F16KA102-I/SS
✅ Drop-In✓ Em estoque
$2.05 / unidade
Ver ficha técnica →PIC24F08KL401-I/SS
✅ Drop-In✓ Em estoque
$1.6 / unidade
Ver ficha técnica →PIC24F08KA101-I/P
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$2.45 / unidade
Ver ficha técnica →PIC24F32KA301-I/SS Classificações máximas e características elétricas
| Core Architecture | PIC 16-bit modified Harvard |
| Series | PIC® XLP™ 24F |
| Program Memory | 32 KB Flash (11K x 24) |
| RAM | 2 KB |
| EEPROM | 512 B |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| Temperatura de operação | -40 °C to +85 °C (Industrial, "I") |
| ADC | 12-bit, multiple channels |
| CTMU | Yes (Charge Time Measurement Unit) |
| Timers | Multiple 16-bit and 32-bit timers |
| Communication | UART, SPI, I2C |
| Encapsulamento | 20-SSOP (0.209", 5.30 mm width) |
| Tipo de montagem | Surface Mount |
| Status RoHS | Compliant |
| Programming/Debug | ICSP via PGEDx/PGECx pins |
Configuração de pinos do PIC24F32KA301-I/SS
| Pino 1 | MCLR — Master Clear (reset) input; pull-up to VDD |
| Pino 2 | RA0 — GPIO/AN0/CVD |
| Pino 3 | RA1 — GPIO/AN1/CVD |
| Pino 4 | RB0 — GPIO/AN2/CVD |
| Pino 5 | RB1 — GPIO/AN3/CVD |
| Pino 6 | RB2 — GPIO/AN4/CVD |
| Pino 7 | RB3 — GPIO/AN5/CVD |
| Pino 8 | VSS — Ground |
| Pino 9 | OSC1/RA2 — Crystal oscillator input or GPIO |
| Pino 10 | OSC2/RA3 — Crystal oscillator output or GPIO |
| Pino 11 | RA4 — GPIO/SOSCO |
| Pino 12 | RA5 — GPIO/SOSCI |
| Pino 13 | VDD — Positive supply (1.8 V - 3.6 V) |
| Pino 14 | RB4 — GPIO/PWM |
| Pino 15 | RB5 — GPIO/PWM |
| Pino 16 | RB6 — GPIO/PGC/PGEC |
| Pino 17 | RB7 — GPIO/PGD/PGED |
| Pino 18 | RA6 — GPIO |
| Pino 19 | RA7 — GPIO |
| Pino 20 | VSS — Ground |
Aplicações típicas
PIC24F32KA301-I/SS é adequado para 6 aplicaçãos: Battery-Powered IoT Sensor Node, Wearable Health Monitor, Capacitive Touch User Interface, Industrial Sensor Transmitter, Remote Control / IR Transmitter, Low-Power e-Paper Display Controller.
Battery-Powered IoT Sensor Node
The PIC24F32KA301-I/SS is an excellent fit for coin-cell or 2×AA powered wireless sensor nodes that spend most of their life in Deep Sleep. Its eXtreme Low Power (XLP) Deep Sleep current, RTCC, and DSBOR/DSWDT peripherals keep timekeeping and tamper detection alive while drawing nanoamp-level quiescent current, while a 32 MHz burst mode wakes the core for sub-second sensor reads and radio TX. Designers typically pair this MCU with an SPI-connected sensor (temperature, accelerometer) and a sub-GHz or BLE radio; the 12-bit ADC and CTMU cover most sensor front-ends without extra analog ICs.
Recomendado
Wearable Health Monitor
For wearable health bands and continuous-monitoring patches, the PIC24F32KA301-I/SS's XLP Deep Sleep mode and CTMU touch/pulse-generation peripheral are decisive. The 32 KB Flash accommodates BLE stack + sensor-fusion code, the 12-bit ADC handles PPG and bio-impedance front-ends, and the CTMU can directly drive capacitive touch buttons or a body-coupled proximity wake-up. Operating at 1.8-3.6 V lets the design run from a Li-ion cell directly without an extra LDO. The 20-SSOP footprint keeps the BOM under 10×10 mm including the battery.
Recomendado
Capacitive Touch User Interface
The integrated Charge Time Measurement Unit (CTMU) makes the PIC24F32KA301-I/SS a low-cost capacitive touch controller for appliances, white goods, and consumer electronics. The CTMU, combined with the on-chip ADC and the XLP low-power idle, supports 4-8 touch buttons, sliders, or proximity zones with no external analog IC, reducing BOM cost by $0.30-$0.50 per board versus discrete touch controllers. Designers can sleep the MCU between touches with current below typical standby thresholds, extending battery life in remote controls and battery-operated appliances.
Recomendado
Industrial Sensor Transmitter
In 4-20 mA loop-powered or 24 V industrial sensor transmitters, the PIC24F32KA301-I/SS delivers 16 MIPS at 32 MHz to handle HART, IO-Link, or proprietary modulations, while still achieving deep sleep currents that allow operation from harvested energy. The -40 °C to +85 °C industrial temperature range and 1.8-3.6 V supply directly support 3.3 V sensor rails. The CTMU simplifies RTD/Pulse excitation, and the 12-bit ADC (with oversampling to ~14-bit ENOB) is sufficient for most transducer front-ends. The 20-SSOP package fits in standard DIN-rail sensor heads.
Recomendado
Remote Control / IR Transmitter
The PIC24F32KA301-I/SS's combination of low active current, fast wake from Deep Sleep, and CTMU pulse generation is well-suited to IR/RF remote controls. Its 32 MHz MIPS throughput can drive RC5/RC6, NEC, or proprietary protocols directly, and the CTMU allows precise carrier generation without extra timers. Operating from 2×AA or a coin cell, with average quiescent current in the deep-sleep nanoamp range, the device supports 5+ year battery life in TV remotes, smart-home controllers, and key-fob entry systems.
Recomendado
Low-Power e-Paper Display Controller
For e-paper price tags, shelf labels, and battery-powered signage, the PIC24F32KA301-I/SS's low active current plus deep sleep capability allow multi-year battery life while driving SPI-connected e-paper panels. Its 32 KB Flash accommodates display fonts and partial-update algorithms, the CTMU handles the precise timing of EPD waveforms, and the 12-bit ADC can monitor battery voltage for low-battery indicators. The wide 1.8-3.6 V supply range is compatible with CR2032 cells directly.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC24F32KA301-I/SS — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC24F32KA301T-I/SS | PIC24F16KA101-I/SS | PIC24F16KA101T-I/SS | PIC24F16KA102-I/SS | PIC24F08KL401-I/SS |
|---|---|---|---|---|---|---|
| Package | 20-SSOP | 20-SSOP | 20-SSOP | 20-SSOP | 20-SSOP | 20-SSOP |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash | 32 KB | 32 KB | 16 KB | 16 KB | 16 KB | 8 KB |
| RAM | 2 KB | 2 KB | 1 KB | 1 KB | 1.5 KB | 1 KB |
| EEPROM | 512 B | 512 B | 512 B | 512 B | 512 B | 512 B |
| Max CPU Speed | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 16 MHz (8 MIPS) |
| CTMU | Yes | Yes | No | No | Yes | No |
| XLP Deep Sleep | Yes | Yes | Yes | Yes | Yes | Yes |
| Packaging | Tube | Tape & Reel | Tube | Tape & Reel | Tube | Tube |
Principais diferenciais
- Highest Flash (32 KB) in the 20-SSOP PIC24F XLP family (vs PIC24F16KA101-I/SS)
- Includes CTMU for capacitive touch without extra analog IC (vs PIC24F16KA101-I/SS)
- Deeper Deep Sleep + RTCC than KL-series (vs PIC24F08KL401-I/SS)
Notas de projeto
Place a 0.1 µF ceramic decoupling capacitor as close as practical to the VDD pin (pin 13 on the 20-SSOP). Add a 1 µF to 10 µF bulk capacitor at the supply rail to handle burst current when waking from Deep Sleep. For battery-powered designs, route the MCLR pin with a 10 kΩ pull-up to VDD and avoid leaving any I/O floating to prevent parasitic current paths into the MCU.
Do not exceed 3.6 V on VDD; the PIC24F KA-series is NOT a 5 V-tolerant part despite the 5 V naming. Confirm that any external peripheral driving an input pin is 3.3 V-compliant or use a level translator. When migrating from PIC24F32KA301-I/SO (28-SOIC), the 20-SSOP loses RB8-RB15 and several analog channels - verify your pin map after porting.
Keep the ICSP traces (PGECx/PGEDx, pins 16/17) short and routed without stubs so the debugger can program the device reliably in-circuit. Avoid running noisy switching signals parallel to the crystal traces (OSC1/OSC2) - route the crystal within 5 mm of the MCU and add a ground guard around it. The exposed SSOP paddle (if any, depending on package revision) should be soldered to a copper pour tied to VSS for thermal relief.
Informações de conformidade
RoHS compliant per Microchip product page. Not AEC-Q100 qualified (industrial grade "I"). For automotive, look at PIC24F KA automotive grades (e.g., -I/SO versions) or PIC24F-H series.
