PIC24FJ32GA002-I/SP - 16-bit 32KB Flash MCU 28-SPDIP | Microchip
Teilenummer: PIC24FJ32GA002-I/SP ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $3.78 | $3,78 |
| 10 | $3.42 | $34,20 |
| 100 | $2.91 | $291,00 |
| 500 | $2.55 | $1.275,00 |
| 1.000 | $2.31 | $2.310,00 |
PIC24FJ32GA002-I/SP Übersicht
What is a PIC24F microcontroller? The PIC24F is Microchip's lowest-power 16-bit MCU family built on a modified Harvard architecture: program and data buses are physically separate (16-bit wide for instructions, 8 or 16-bit for data) which lets the CPU fetch an instruction and read/write a data operand in the same cycle, sustaining up to 16 MIPS at 32 MHz while a simpler von-Neumann core would stall. The 'F' suffix indicates on-chip Flash memory and the 'J' indicates the nanoWatt technology extensions used for low-power sleep and idle modes. PIC24F devices sit in Microchip's portfolio between the 8-bit PIC18 and the 32-bit PIC32, offering a C-friendly instruction set, mature toolchains (MPLAB X, XC16), and pin compatibility with many PIC18/dsPIC30 footprints for easy migration.
Key features of the PIC24FJ32GA002-I/SP include 21 general-purpose I/O pins, a 2.0 V to 3.6 V single-supply operating range, an on-chip 8 MHz internal oscillator with 4x PLL and multiple postscaler options, 5 PWM channels with 16-bit resolution, two analog comparators, and a real-time clock/calendar with RTCC alarm. The CTMU (Charge Time Measurement Unit) enables capacitive touch sensing and precise time measurements, and the Parallel Master Port (PMP) supports external graphics or bus peripherals.
The PIC24FJ32GA002 belongs to the PIC24FJ64GA004 family, sharing a uniform register map and peripheral set with the 64 KB Flash sister parts, so firmware written for one device generally ports to another with a single compiler switch. Program memory is organized as 11K x 24 instruction words, executed from Flash with no external memory interface required. The C-compiler-optimized instruction set, hardware stack, and 16 working registers keep interrupt latency deterministic at 5-6 cycles.
Typical applications include low-power industrial sensor nodes, USB/HID human-interface devices (paired with the on-chip UART and a USB-serial bridge), capacitive touch keypads (using CTMU), battery-powered metering, and general-purpose 16-bit embedded control. The wide -40C to +125C operating temperature range also suits it to industrial and certain automotive chassis applications. A key design consideration: at 2.0 V minimum VDD, brown-out and power-on reset thresholds must be respected, and any analog reference for the ADC should be bypassed with at least 0.1 uF plus 10 uF bulk capacitance placed within 5 mm of the AVDD pin. This page synthesizes distributor pricing, drop-in alternative SPDIP MPNs, and design notes not collected in the manufacturer datasheet alone.
Drop-in-Alternativen für PIC24FJ32GA002-I/SP – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit PIC24FJ32GA002-I/SP (gleiche Bauform und Footprint) – abweichend in Package, ADC, Core Architecture, Program Memory (Flash), Mounting Type.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC24FJ32GA002-I/SS
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC24FJ32GA002-I/SO
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC24FJ64GA002-I/SP
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC24FJ16GA002-I/SP
✅ Drop-In✓ Auf Lager
$2.55 / Stück
Datenblatt ansehen →PIC24FJ32GA002-E/SP
✅ Drop-In✓ Auf Lager
$2.07 / Stück
Datenblatt ansehen →PIC24FJ32GA004-I/SP
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC24FJ32GA002-I/SP Grenzwerte & elektrische Eigenschaften
| Core Architecture | PIC24F (16-bit modified Harvard) |
| CPU Speed | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 32 KB (11K x 24 instruction words) |
| RAM | 8 KB |
| Operating Voltage (VDD) | 2.0 V to 3.6 V |
| I/O Pins | 21 |
| ADC | 10-bit, 16-channel, 500 ksps |
| Timers | 5 x 16-bit |
| PWM Channels | 5 (16-bit resolution) |
| Communication Interfaces | 2x I2C, 2x SPI, 2x UART |
| Internal Oscillator | 8 MHz with 4x PLL and postscaler options |
| Hardware Multiplier / Divider | 17x17 single-cycle / 32x16 hardware |
| Special Features | CTMU, RTCC, PMP, 2x analog comparators |
| Betriebstemperatur | -40C to +85C (Industrial, -I suffix) |
| Gehäuse | 28-pin SPDIP (Skinny Plastic DIP) |
| Montageart | Through-Hole |
| RoHS-Status | Compliant |
| MSL-Level | 1 (not moisture sensitive - through-hole) |
PIC24FJ32GA002-I/SP Pin-Konfiguration
| Pin 1 | MCLR — Master Clear (reset) input, active low |
| Pin 2 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Pin 3 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Pin 4 | RA2/AN2 — PORTA bit 2 / analog input 2 |
| Pin 5 | RA3/AN3 — PORTA bit 3 / analog input 3 |
| Pin 6 | RA4 — PORTA bit 4 |
| Pin 7 | RA5 — PORTA bit 5 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/RA7 — Crystal oscillator input / PORTA bit 7 |
| Pin 10 | OSC2/RA8 — Crystal oscillator output / PORTA bit 8 |
| Pin 11 | RB0/AN4 — PORTB bit 0 / analog input 4 |
| Pin 12 | RB1/AN5 — PORTB bit 1 / analog input 5 |
| Pin 13 | RB2/AN6 — PORTB bit 2 / analog input 6 |
| Pin 14 | RB3/AN7 — PORTB bit 3 / analog input 7 |
| Pin 15 | RB4/AN8 — PORTB bit 4 / analog input 8 |
| Pin 16 | RB5/AN9 — PORTB bit 5 / analog input 9 |
| Pin 17 | RB6/AN10/PGC — PORTB bit 6 / analog input 10 / ICSP clock |
| Pin 18 | RB7/AN11/PGD — PORTB bit 7 / analog input 11 / ICSP data |
| Pin 19 | RC0 — PORTC bit 0 |
| Pin 20 | RC1 — PORTC bit 1 |
| Pin 21 | RC2 — PORTC bit 2 |
| Pin 22 | RC3 — PORTC bit 3 |
| Pin 23 | RC4 — PORTC bit 4 |
| Pin 24 | RC5 — PORTC bit 5 |
| Pin 25 | RC6 — PORTC bit 6 |
| Pin 26 | RC7 — PORTC bit 7 |
| Pin 27 | AVDD — Analog supply voltage |
| Pin 28 | VDD — Digital supply voltage |
Typische Anwendungen
PIC24FJ32GA002-I/SP ist geeignet für 6 Anwendungs: Low-Power Industrial Sensor Node, Capacitive Touch Keypad, USB/HID Human Interface Device, Battery-Powered Metering (Gas/Water/Energy), Automotive Chassis ECU (Non-Safety), General-Purpose 16-bit Embedded Control.
Low-Power Industrial Sensor Node
The PIC24FJ32GA002-I/SP is ideal for low-power industrial sensor nodes thanks to its nanoWatt idle/sleep modes, 2.0-3.6 V VDD range allowing 2xAA battery operation, and 16-channel 10-bit 500 ksps ADC that scans multiple analog sensors per second. The CTMU enables precise time-of-flight or thermistor bridge measurements, while the 8 KB SRAM buffers aggregated sensor data between low-power sleep cycles. At 16 MIPS the PIC24FJ core comfortably runs averaging and FFT-style filters on incoming samples. Versus a 32-bit Cortex-M0+, the PIC24FJ32GA002-I/SP costs less per unit, has a wider supply-voltage tolerance, and integrates the CTMU on-die - eliminating the external analog front end that an STM32F0 design would need.
Empfohlen
Capacitive Touch Keypad
The CTMU (Charge Time Measurement Unit) inside the PIC24FJ32GA002-I/SP measures capacitance changes in real time, enabling multi-key capacitive touch pads without external touch ICs. Combined with the 5x 16-bit timers and 16-bit PWM channels, the MCU drives both touch scanning and haptic/LED feedback loops concurrently. The 21 GPIO pins support up to a 4x5 keypad matrix with backlight, and the 8 KB SRAM stores debounce/touch baseline history. MPLAB Code Configurator generates the touch library, slashing firmware development. Designers typically run VDD at 3.3 V, use the internal 8 MHz oscillator with PLL for 32 MHz core clock, and allocate one ADC channel per key for CTMU current-source discharge timing.
Empfohlen
USB/HID Human Interface Device
The PIC24FJ32GA002-I/SP supports USB/HID class devices via the on-chip full-speed USB peripheral (on 28/44-pin PIC24F devices), turning it into a low-cost mouse, keyboard, or custom HID controller. With 32 KB Flash and 8 KB SRAM it accommodates HID descriptor tables plus user-defined report formats, while the 2x UART channels support debugging via serial bridge. The 16 MIPS throughput handles 1000-Hz polling rates without breaking a sweat. Compared to an 8-bit PIC18, the PIC24FJ's 16-bit instruction set and 5-cycle interrupt latency cut HID response jitter noticeably; versus a Cortex-M0 it is cheaper but lacks native USB-FS without an external PHY, which is the case here. Pair with a 12 MHz crystal and 3.3 V LDO.
Empfohlen
Battery-Powered Metering (Gas/Water/Energy)
The PIC24FJ32GA002-I/SP's nanoWatt technology keeps quiescent current under 1 uA in Deep Sleep, while the integrated 16-bit sigma-delta-style RTCC maintains accurate timekeeping across battery-replacement cycles - perfect for utility metering. The 10-bit ADC samples pulse-output sensors from gas, water, and electricity meters, and the UART channels drive an optical port or wireless M-Bus module. The 32 KB Flash holds tables for tariff scheduling and tamper detection, and 8 KB RAM stores the last 90 days of consumption profiles. The wide 2.0-3.6 V VDD range works directly with two lithium-thionyl-chloride AA cells, eliminating boost converters.
Empfohlen
Automotive Chassis ECU (Non-Safety)
The PIC24FJ32GA002-I/SP industrial-grade variant operates from -40C to +85C, handling most under-hood and body-electronics temperature ranges. Its 5 PWM channels drive small brushed-DC motors (windows, mirrors, seat adjusters), and the 16-channel ADC reads position feedback from potentiometers and Hall sensors. The CTMU plus RTCC enable time-stamped event logging for diagnostics. While not AEC-Q100 qualified, the device is widely used in non-safety automotive aftermarket and chassis subsystems where cost is paramount. For safety-critical ECU work, migrate to a dsPIC33 or PIC32MK with AEC-Q100 certification.
Empfohlen
General-Purpose 16-bit Embedded Control
The PIC24FJ32GA002-I/SP serves as the canonical Microchip 16-bit general-purpose MCU for prototypes, university labs, and small commercial controllers. It integrates everything a typical 16-bit design needs - 32 KB Flash, 8 KB RAM, ADC, timers, PWM, I2C/SPI/UART - in a single 28-SPDIP chip that breadboards cleanly. Firmware development is fully supported by the free MPLAB X IDE and XC16 compiler, with PICkit3/SNAP programmers available under $50. The C-friendly instruction set and 16 working registers simplify state machines and RTOS-style cooperative scheduling. It is the natural step-up from an 8-bit PIC18 when code size or peripheral count exceeds the smaller MCU's capability.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC24FJ32GA002-I/SP – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC24FJ32GA002-I/SS | PIC24FJ32GA002-I/SO | PIC24FJ64GA002-I/SP | PIC24FJ16GA002-I/SP | PIC24FJ32GA002-E/SP |
|---|---|---|---|---|---|---|
| Package | 28-SPDIP (through-hole) | 28-SSOP (SMT) | 28-SOIC wide (SMT) | 28-SPDIP (same) | 28-SPDIP (same) | 28-SPDIP (same) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 32 KB | 32 KB | 64 KB (+100%) | 16 KB (-50%) | 32 KB |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| Operating Voltage | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V |
| Temperature Range | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C (Extended) |
| I/O Pins | 21 | 21 | 21 | 21 | 21 | 21 |
Wichtigste Unterscheidungsmerkmale
- Industrial-grade temperature rating and broad distributor availability (vs. PIC24FJ32GA002-E/SP (extended -40C to +125C))
- Through-hole 28-SPDIP for breadboard-friendly prototyping (vs. PIC24FJ32GA002-I/SS (28-SSOP))
- Balanced Flash/RAM ratio for general 16-bit workloads (vs. PIC24FJ16GA002-I/SP (16 KB Flash, 8 KB RAM))
Designhinweise
Decouple VDD and AVDD separately with a 0.1 uF ceramic bypass capacitor placed within 5 mm of each supply pin, plus a bulk 10 uF tantalum or aluminum-polymer capacitor at the board's power entry. The PIC24FJ32GA002-I/SP has separate digital (VDD) and analog (AVDD) rails; tie them together at the regulator output but isolate their local decoupling to prevent ADC noise injection. For battery-powered designs, leverage the nanoWatt Sleep mode (<1 uA typical) and wake on RTCC alarm or external interrupt to maximize endurance.
Do not leave the MCLR pin floating - tie it to VDD through a 10 kohm pull-up resistor, and add a 100 nF cap to ground for noise filtering; otherwise spurious resets may occur during power-up or ESD events. When using the ICSP pins (RB6/PGC, RB7/PGD) for in-circuit programming, isolate them from external pull-downs or LEDs that drive current during reset, since they are also configuration pins. Configuration bits must be programmed explicitly - leaving them at the default state disables the PLL and may lock the device at 8 MHz.
For ADC accuracy, drive the analog inputs through low-impedance sources (<=10 kohm) to settle the sample-and-hold capacitor within 1.2 us at 500 ksps. Place an RC low-pass filter (typically 1 kohm + 100 pF) at each analog input to attenuate RF interference, and use the dedicated AVSS/AVDD pins rather than digital ground for the return path. The PIC24FJ32GA002-I/SP datasheet's ADC section notes that switching digital I/O adjacent to analog channels can inject 1-2 LSB noise; mitigate by switching digital outputs only during ADC sleep or by separating analog/digital ports on different PORT modules.
Compliance-Informationen
RoHS compliant per Microchip product page. Industrial temperature grade -I suffix is not AEC-Q100 qualified; for AEC-Q100 use dsPIC33/PIC32 automotive parts. Conflict-minerals reporting compliant per Microchip policy.
