PIC24F04KL100-I/ST - 16-Bit 32MHz 4KB XLP MCU | Microchip
N.º de pieza: PIC24F04KL100-I/ST ✓ ActivoPIC24F04KL100-I/ST Descripción general
A PIC24F microcontroller is a compact RISC-based embedded controller that combines a 16-bit CPU, program Flash, data RAM, and dedicated peripherals on one integrated circuit. Within the embedded-control hierarchy, the PIC24F04KL100-I/ST belongs to the PIC24F family and emphasizes low power, economical integration, and deterministic peripheral performance for small control systems.
Important features include nanoWatt XLP technology for low-power operation, a 10-bit Analog-to-Digital Converter, two comparators, and communication peripherals that include an MSSP module supporting I2C or SPI and two CCP modules. A programmable brown-out reset and Watchdog Timer support dependable operation. The 14-TSSOP package is narrow and well suited to compact control boards, sensor modules, and low-cost consumer equipment.
The MCU provides 16 general-purpose digital I/O ports and five dedicated digital I/O pins, according to the family-level product information, while analog functions share several of the same physical pins. Designers must therefore assign pin multiplexing carefully when a board requires both ADC inputs and a specific digital interface. The 32 MHz performance allows control tasks to run quickly without moving logic into an external processor.
Typical applications include battery-powered sensors, compact motor-control systems, lighting controllers, appliance interfaces, security and access modules, and low-cost measurement equipment. The combination of 4 KB Flash, 512 bytes of RAM, MSSP connectivity, and CCP timing peripherals is especially useful when a design needs deterministic timing and serial sensor communication without a high-pin-count package.
When laying out the board, place bypass capacitance close to VDD and VSS, route oscillator and sensitive analog inputs away from high-current switching nodes, and confirm every multiplexed peripheral assignment before PCB release. Firmware should also use the Watchdog Timer and brown-out reset as part of a safe recovery strategy rather than treating them as optional diagnostics.
This page combines verified manufacturer and distributor specifications with package-level design guidance, engineering comparisons, and procurement-focused information that is not presented as a single block within the manufacturer datasheet.
Alternativas directas para PIC24F04KL100-I/ST — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con PIC24F04KL100-I/ST (mismo factor de forma y huella) — difiere en Package, Core Architecture, Internal Oscillator, Timers.
PIC24F04KL100-E/ST
✅ Sustitución directaConsulte el precio
Ver hoja de datos →PIC24F04KL101-I/ST
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
PIC24F04KL102-I/ST
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
PIC24F04KL100-I/ST Valores máximos y características eléctricas
| Product Type | 16-bit RISC Flash Microcontroller |
| Product Series | PIC24F |
| Frecuencia de reloj máxima | 32 MHz |
| Instruction Throughput | 16 MIPS |
| Program Flash Memory | 4 KB (1.375K words x 24 bits) |
| Data RAM | 512 bytes |
| Tensión de alimentación de funcionamiento | 3.3 V |
| Encapsulado | 14-pin TSSOP |
| Package Dimensions | 0.173 in x 0.440 mm width class (0.173 in x 0.440 mm, as listed) |
| Tipo de montaje | Surface Mount |
| Low-Power Technology | nanoWatt XLP |
| Analog-to-Digital Converter | 10-bit ADC |
| Comparator Count | 2 |
| Communication Peripherals | MSSP supporting I2C and SPI |
| Capture/Compare/PWM Modules | 2 CCP modules |
| Watchdog Timer | Yes |
| Brown-Out Reset | Yes |
Configuración de pines de PIC24F04KL100-I/ST
| Pin 1 | MCLR/VPP — Programming and module reset pin |
| Pin 2 | RA5/T1/CK — General-purpose digital input/output with Timer1 and clock-function multiplexing |
| Pin 3 | RA4/T0 — General-purpose digital input/output with Timer0 multiplexing |
| Pin 4 | RA3/AN3/C1IN- — Digital input/output, analog input, and comparator input multiplexing |
| Pin 5 | RA2/AN2/C1OUT/VREF- — Digital input/output, analog input, comparator output, and voltage-reference multiplexing |
| Pin 6 | RA1/AN1/C1IN+ — Digital input/output, analog input, and comparator input multiplexing |
| Pin 7 | RA0/AN0/C1OUT+ — Digital input/output, analog input, and comparator output multiplexing |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RB7 — General-purpose digital input/output |
| Pin 10 | RB6 — General-purpose digital input/output |
| Pin 11 | RB5 — General-purpose digital input/output |
| Pin 12 | RB4 — General-purpose digital input/output |
| Pin 13 | VDD — Positive supply input |
| Pin 14 | OSC1/CLKO — Oscillator input or clock-output multiplexing |
Aplicaciones típicas
PIC24F04KL100-I/ST es adecuado para 6 aplicacións: Battery-Powered Environmental Sensors, Compact Motor and Actuator Control, Industrial Sensor and Condition Monitoring, Low-Cost Home Appliance Control, LED Lighting and Dimming Controllers, Access Control and Security Peripherals.
Battery-Powered Environmental Sensors
The PIC24F04KL100-I/ST fits compact battery-powered sensor nodes because its PIC24F platform combines nanoWalt XLP low-power operation with a 32 MHz 16-bit core and 512 bytes of RAM. An engineer can place the MCU in a low-power state between readings, wake it for an ADC conversion, and use the MSSP module to communicate with an I2C or SPI temperature, humidity, or gas sensor. The 4 KB Flash budget is sufficient for a compact acquisition and filtering routine, while the 14-TSSOP footprint preserves board area. The main trade-off is limited RAM, so sensor buffering and packet assembly must be sized carefully to avoid excessive stack or data-storage demand.
Recomendado
Compact Motor and Actuator Control
The PIC24F04KL100-I/ST is appropriate for small motor or actuator controllers because its 32 MHz, 16-bit architecture provides 16 MIPS instruction throughput for timing and control-loop execution. Two CCP modules can generate or capture timing signals, while the 10-bit ADC can monitor a current or position sensor. The 512 bytes of RAM and 4 KB Flash are adequate for compact proportional control, direction sequencing, and fault handling without an external processor. Because many I/O and analog functions are multiplexed, the controller requires a pin plan that balances feedback inputs with motor-drive outputs. An external driver is needed because the MCU pins are not intended to power a motor directly.
Recomendado
Industrial Sensor and Condition Monitoring
The PIC24F04KL100-I/ST can serve as the local controller in a condition-monitoring module that accepts analog sensor inputs and reports readings over a serial bus. Its 10-bit ADC and two comparators support threshold-based detection, while the CCP peripherals support timing functions such as pulse capture or duty-cycle measurement. The -I order code is suited to industrial-temperature product planning, subject to confirmation of the exact operating limits in the manufacturer datasheet. At 32 MHz, the processor can filter samples and apply simple alarm thresholds. The 512-byte RAM limit means that lengthy historical logging should remain in an external serial memory rather than the MCU.
Recomendado
Low-Cost Home Appliance Control
The PIC24F04KL100-I/ST suits cost-sensitive appliance modules that combine simple user inputs, relay or lamp control, and status communication. Its 4 KB Flash accommodates a compact state machine, the 512-byte RAM supports local debouncing and display or keypad handling, and the nanoWalt XLP architecture helps reduce energy use in standby mode. The 14-pin TSSOP package keeps the controller compact while exposing enough I/O for buttons, indicators, and an external driver interface. Compared with an 8-bit MCU, the 16-bit arithmetic and 32 MHz clock provide more headroom for filtering and multi-peripheral operation, although the small memory footprint requires disciplined code sizing.
Recomendado
LED Lighting and Dimming Controllers
The PIC24F04KL100-I/ST can implement a cost-effective LED lighting controller using its CCP modules for accurate timing and PWM generation. The 32 MHz clock provides sufficient timing resolution for dimming and sequencing, while the MSSP can connect to a digital LED driver or ambient sensor over I2C or SPI. A 4 KB Flash budget is practical for a fixed dimming table, fade routine, and fault state machine, and the 512 bytes of RAM is sufficient for a small working set rather than large frame buffers. Board implementation should preserve current-loop layout quality because rapid LED current transitions can inject noise into the MCU supply and adjacent analog measurement circuitry.
Recomendado
Access Control and Security Peripherals
The PIC24F04KL100-I/ST is suitable for a small access-control peripheral that reads an external sensor, drives a lock or relay, and maintains a status indicator. Its integrated comparators can support simple signal-level detection, while the CCP modules can capture timing pulses from readers or keypads. The 4 KB Flash and 512 bytes of RAM support concise authentication and event-handling routines without excessive software complexity. The 14-pin TSSOP package makes the controller practical for distributed door hardware where board area is limited. Security-sensitive designs must protect programming access, apply the manufacturer’s recommended configuration procedure, and avoid treating a simple access code check as equivalent to a dedicated cryptographic security element.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC24F04KL100-I/ST — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC24F04KL100-E/ST | PIC24F04KL101-I/ST | PIC24F04KL102-I/ST |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-TSSOP | 14-TSSOP - same | 14-TSSOP - same | 14-TSSOP - same |
| Maximum Clock Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| CPU Architecture | 16-bit PIC24F RISC | 16-bit PIC24F RISC | 16-bit PIC24F RISC | 16-bit PIC24F RISC |
| Program Flash Memory | 4 KB | 4 KB | 4 KB | 4 KB |
| Data RAM | 512 bytes | 512 bytes | 512 bytes | 512 bytes |
| Order-Code Suffix | -I/ST | -E/ST | -I/ST | -I/ST |
| Temperature-Grade Designation | -I industrial grade | -E extended grade | -I industrial grade | -I industrial grade |
Diferenciadores clave
- Maintains the exact 16-pin-compatible board footprint while offering an alternate order-code grade (frente a PIC24F04KL100-E/ST)
- Provides a same-footprint path to family-specific peripheral variants (frente a PIC24F04KL101-I/ST)
- Combines a 16-bit core with nanoWatt XLP operation in a compact package (frente a PIC24F04KL102-I/ST)
Notas de diseño
Place the supply bypass capacitor immediately across VDD and VSS, and route the return current so switching-node currents do not share the quiet ground path beneath the MCU. The PIC24F04KL100-I/ST uses nanoWalt XLP technology, but measured battery life depends on the selected sleep mode, whether the ADC and MSSP remain active, and the peripheral clock-gating strategy in firmware. Validate the sleep current on the assembled board because leakage through pull resistors, LEDs, and external sensors can dominate a low-power design.
Assign the multiplexed 14-pin TSSOP interface before routing. The analog-capable pins also serve comparator and digital functions, so assigning an ADC channel can restrict the usable digital port mapping. Keep the MCLR/VPP programming signal away from noisy motor-driver wiring, and route OSC1/CLKO away from switching nodes and high-current LED drivers. If the board uses either external crystal timing or the internal oscillator, verify the timing configuration and associated load-capacitance recommendations in the manufacturer datasheet.
Do not assume that all 14 pins provide independent analog or digital functions. The 4 KB Flash device has 1.375K program words of 24 bits, and interrupt-vector placement or a bootloader can consume part of that budget. Firmware should also test the Watchdog Timer and brown-out reset behavior rather than relying only on nominal supply regulation. Before substituting PIC24F04KL101-I/ST or PIC24F04KL102-I/ST, verify the device-selection table, interrupt vector, peripheral availability, and programming configuration to ensure that the suffix change does not alter the required hardware function.
For designs that mix an ADC measurement with an LED driver, motor switcher, or relay interface, keep the analog return path quiet and place the sensor front end physically away from the switching stage. The 10-bit ADC is adequate for many supervisory measurements, but its usable accuracy also depends on reference voltage quality, source impedance, acquisition time, and layout. The MCU’s 3.3 V supply is confirmed by distributor data, but the complete operating range and electrical limits must be taken from the manufacturer datasheet before setting timing or analog design margins.
Información de cumplimiento
The verified data identifies the -I industrial order code but does not include explicit RoHS, REACH, halogen-free, conflict-minerals, or AEC-Q100 statements. No automotive qualification is claimed for this part.
