PIC24FJ32GA102-I/SS - 32KB Flash 16-bit XLP MCU | Microchip
Référence : PIC24FJ32GA102-I/SS ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $3.84 | $3,84 |
| 10 | $3.41 | $34,10 |
| 100 | $2.97 | $297,00 |
| 500 | $2.62 | $1 310,00 |
| 1 000 | $2.4 | $2 400,00 |
PIC24FJ32GA102-I/SS Présentation
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), and a rich set of peripherals into one IC. The PIC24F family sits in the 16-bit tier of Microchip's product hierarchy: 8-bit PIC10/12/16/18 -> 16-bit PIC24F/dsPIC33 -> 32-bit PIC32. Within the PIC24F tier, the nanoWatt XLP variants add specialised sleep modes that allow standby currents below 1 uA, enabling years of operation from coin cells. The PIC24FJ32GA102-I/SS targets cost-sensitive applications that need more performance and memory than an 8-bit PIC but do not justify a 32-bit PIC32.
Key features of the PIC24FJ32GA102-I/SS include 32 KB Flash (11K x 24 words), 8 KB SRAM, 16 MIPS performance from a 32 MHz internal oscillator, 21 digital I/O pins with peripheral pin select, an integrated 10-bit ADC with up to 13 input channels and 1.1 Msps sampling rate, four 16-bit timers, two UART modules, two SPI modules, and two I2C modules. The device operates from 2.0 V to 3.6 V and is rated for industrial -40C to +85C ambient temperature. The 28-SSOP package offers a narrow-body 5.30 mm footprint suitable for compact boards.
The PIC24FJ32GA102-I/SS uses Microchip's modified Harvard architecture with a 16-bit datapath and 24-bit instruction word, allowing single-cycle fractional multiplication and deterministic interrupt latency. Integrated nanoWatt XLP technology provides multiple deep-sleep modes (Sleep, Deep Sleep, RTC mode) with current as low as 20 nA in Deep Sleep with RTCC, making the part a strong fit for always-on sensor nodes and energy-harvesting systems.
Typical applications include portable medical devices, IoT sensor nodes, consumer electronics (remote controls, toys, wearables), industrial sensor interfaces, low-power wireless platforms, and battery-backed data loggers. The combination of generous SRAM and 21 I/O also supports human-machine interface (HMI) front panels and small graphical displays.
When designing with the PIC24FJ32GA102-I/SS, ensure the supply rail stays between 2.0 V and 3.6 V and that decoupling capacitors (typically 100 nF plus 10 uF bulk) are placed within 5 mm of the AVDD/VDD pins. The device supports in-circuit serial programming (ICSP) via PGECx/PGEDx pin pairs - use the same pair for both signals to avoid programming failures. For low-power operation, switch off unused peripherals in the PMD register and use Deep Sleep mode whenever the CPU is idle.
This page combines verified distributor pricing, structured same-brand drop-in alternatives drawn from Microchip's PIC24F family, and engineering design notes to help you select, source, and integrate the PIC24FJ32GA102-I/SS with confidence.
Alternatives de remplacement direct pour PIC24FJ32GA102-I/SS — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC24FJ32GA102-I/SS (même facteur de forme et même empreinte) — différant par Package, ADC, Timers, Operating Temperature, Program Memory (Flash).
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC24FJ32GA002-I/SS
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
PIC24FJ32GA102T-I/SS
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC24FJ32GA102-E/SS
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
PIC24FJ32GA102-I/SO
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$1.85 / unité
Voir la fiche technique →PIC24FJ32GA104-I/SS
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
PIC24FJ32GA102-I/SS Valeurs maximales et caractéristiques électriques
| Series | PIC24F XLP nanoWatt |
| Core | PIC24F (16-bit modified Harvard) |
| CPU Speed | 32 MHz / 16 MIPS |
| Program Memory (Flash) | 32 KB (11K x 24 words) |
| SRAM | 8 KB |
| Data EEPROM | None (emulated in Flash) |
| Operating Voltage | 2.0 V to 3.6 V |
| I/O Pins | 21 |
| ADC | 10-bit, up to 13 channels, 1.1 Msps |
| Timers | 5 (16-bit and 32-bit combination) |
| UART | 2 |
| SPI | 2 |
| I2C | 2 |
| Température de fonctionnement | -40C to +85C (Industrial) |
| Boîtier | 28-SSOP (0.209 inch / 5.30 mm body width) |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
| ICSP Programming Pins | PGECx/PGEDx pairs (2 pairs available) |
Configuration des broches de PIC24FJ32GA102-I/SS
| Broche 1 | MCLR — Master Clear (reset) input, active low |
| Broche 2 | RA0 — PORTA bit 0 / analog input AN0 |
| Broche 3 | RA1 — PORTA bit 1 / analog input AN1 |
| Broche 4 | RA2 — PORTA bit 2 / analog input AN2 |
| Broche 5 | RA3 — PORTA bit 3 / analog input AN3 |
| Broche 6 | RA4 — PORTA bit 4 |
| Broche 7 | RA5 — PORTA bit 5 |
| Broche 8 | OSC1 — Oscillator input / CLKI |
| Broche 9 | OSC2 — Oscillator output / CLKO |
| Broche 10 | RB0 — PORTB bit 0 / AN8 |
| Broche 11 | RB1 — PORTB bit 1 / AN9 |
| Broche 12 | RB2 — PORTB bit 2 / AN10 |
| Broche 13 | RB3 — PORTB bit 3 / AN11 |
| Broche 14 | RB4 — PORTB bit 4 |
| Broche 15 | RB5 — PORTB bit 5 |
| Broche 16 | RB6 — PORTB bit 6 / ICSPCLK |
| Broche 17 | RB7 — PORTB bit 7 / ICSPDAT |
| Broche 18 | RC0 — PORTC bit 0 |
| Broche 19 | RC1 — PORTC bit 1 |
| Broche 20 | VSS — Ground reference |
| Broche 21 | VDD — Positive supply (2.0 V to 3.6 V) |
| Broche 22 | RC2 — PORTC bit 2 |
| Broche 23 | RC3 — PORTC bit 3 |
| Broche 24 | RC4 — PORTC bit 4 |
| Broche 25 | RC5 — PORTC bit 5 |
| Broche 26 | RC6 — PORTC bit 6 |
| Broche 27 | RC7 — PORTC bit 7 |
| Broche 28 | AVSS — Analog ground |
Applications typiques
PIC24FJ32GA102-I/SS convient pour 6 applications: Battery-Powered IoT Sensor Node, Portable Medical Device Controller, Industrial Sensor Interface Module, Consumer Wearable Device, USB Keyboard or HID Peripherals, Battery-Backed Data Logger.
Battery-Powered IoT Sensor Node
The PIC24FJ32GA102-I/SS is purpose-built for IoT sensor nodes that run for years on a single coin cell. Its 20 nA Deep Sleep mode with the real-time clock/calendar (RTCC) running lets the MCU wake only when a sensor threshold is crossed, while its 32 KB Flash comfortably fits LoRaWAN, Sigfox, or MQTT-SN protocol stacks. With the 10-bit ADC sampling thermistor or soil-moisture inputs and the two UART/SPI ports connecting a sub-GHz radio such as the MRF89XA, the device delivers a complete low-power node from a 2.0-3.6 V supply rail. Designers should use Deep Sleep whenever the CPU is idle and disable unused peripherals via the PMD register to maximise battery life.
Recommandé
Portable Medical Device Controller
In portable medical devices such as pulse oximeters, glucose meters, and digital thermometers, the PIC24FJ32GA102-I/SS provides deterministic 16-bit performance with nanoWatt XLP sleep modes that keep standby drain below 1 uA. The 32 KB Flash stores device firmware and small lookup tables, while the 8 KB RAM buffers sensor data and runs the display driver. The 10-bit ADC with 1.1 Msps captures photodiode or electrochemical sensor outputs with sufficient resolution for medical-grade accuracy. The 2.0-3.6 V range matches Li-coin or 2x AA chemistries commonly used in handheld patient monitors.
Recommandé
Industrial Sensor Interface Module
The PIC24FJ32GA102-I/SS serves as a robust front-end controller in industrial 4-20 mA loop-powered sensor modules and HMI front panels. Its 21 I/O pins with peripheral pin select (PPS) remap interfaces flexibly across UART, SPI, and I2C, while the 16 MIPS performance handles Modbus RTU framing at 115200 baud without CPU bottlenecks. The -40C to +85C industrial rating supports factory-floor deployments, and the wide 2.0-3.6 V supply tolerates loosely regulated 24 V-to-3V3 rails. Designers can use the on-chip 10-bit ADC to digitise process variables, or offload that to a dedicated ADC over SPI when higher resolution is required.
Recommandé
Consumer Wearable Device
Wearables such as fitness bands, smart watches, and Bluetooth beacons benefit from the PIC24FJ32GA102-I/SS combination of low sleep current, generous Flash, and small SSOP-28 footprint. The 8 KB RAM holds display buffers and sensor-fusion state machines, while the 32 KB Flash fits Bluetooth Low Energy (BLE) host stacks or proprietary RF protocols via SPI. The Peripheral Pin Select feature lets the same I/O pins be remapped between SPI for the radio and I2C for the accelerometer, simplifying PCB layout in compact wearable enclosures. At 32 MHz the part can run gesture-recognition algorithms in real time before returning to Deep Sleep between samples.
Recommandé
USB Keyboard or HID Peripherals
Although the PIC24FJ32GA102-I/SS lacks native USB, its 32 MHz core and 16 MIPS performance can bit-bang USB Low-Speed HID on the D-/D+ lines, supporting keyboards, mice, and simple game controllers. The 32 KB Flash holds USB HID descriptor tables and the host polling loop, while the 21 I/O scan a 8x8 key matrix at low latency. Designers must add 1.5 kohm pull-up and 22 ohm series resistors externally, but the part's 2.0-3.6 V supply matches USB 3.3V rail requirements directly, eliminating the need for an LDO. The SSOP-28 footprint is narrow enough for compact keyboard PCBs.
Recommandé
Battery-Backed Data Logger
The PIC24FJ32GA102-I/SS is well matched to battery-backed data loggers that record sensor readings to internal Flash during unattended periods. With 32 KB of program Flash and the ability to use part of the data EEPROM emulation area for storage, the device can log thousands of timestamped samples between uploads. The RTCC peripheral with 20 nA Deep Sleep keeps accurate wall-clock time across years of battery operation, while the 10-bit ADC captures analog inputs at scheduled intervals. Engineers typically wake the MCU on RTCC alarm, sample, write to Flash, and return to Deep Sleep - all under 100 uA average current.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC24FJ32GA102-I/SS — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC24FJ32GA002-I/SS | PIC24FJ32GA102T-I/SS | PIC24FJ32GA102-E/SS | PIC24FJ32GA104-I/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP | 28-SSOP (same) | 28-SSOP (same) | 28-SSOP (same) | 28-SSOP (same) |
| Flash Memory | 32 KB | 32 KB (same) | 32 KB (same) | 32 KB (same) | 64 KB (doubled) |
| SRAM | 8 KB | 8 KB (same) | 8 KB (same) | 8 KB (same) | 16 KB (doubled) |
| Maximum CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| Deep Sleep Current (XLP) | ~20 nA | ~1 uA (no XLP Deep Sleep) | ~20 nA (same) | ~20 nA (same) | ~20 nA (same) |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (same) | -40C to +85C (same) | -40C to +125C (Extended) | -40C to +85C (same) |
| Packaging Format | Tube | Tube (same) | Tape & Reel | Tube (same) | Tube (same) |
Principaux différenciateurs
- True nanoWatt XLP Deep Sleep at ~20 nA with RTCC (vs PIC24FJ32GA002-I/SS)
- Integrated Peripheral Pin Select (PPS) remapping (vs PIC24FJ32GA002-I/SS)
- Drop-in same-footprint upgrade to 64 KB Flash / 16 KB RAM (vs PIC24FJ32GA104-I/SS)
Notes de conception
The PIC24FJ32GA102-I/SS operates from 2.0 V to 3.6 V and supports three low-power modes: Idle (CPU halted, peripherals running), Sleep (most peripherals off, RTCC retains time), and Deep Sleep (XLP, ~20 nA with RTCC). To maximise battery life, disable unused peripherals via the PMD register, switch the CPU clock to LPRC (31 kHz) before Sleep, and avoid using the PLL in sleep states. A typical IoT sensor duty cycle of 0.1% (1 ms wake every second) keeps average current under 100 uA on a 3 V coin cell.
Place a 100 nF decoupling capacitor within 5 mm of each VDD/AVDD pin pair and a single 10 uF bulk capacitor at the board supply input. Keep the VSS and AVSS pins connected to a common ground plane without split traces to prevent ground bounce during ADC sampling. For SSOP-28 layouts, route ICSP signals (PGECx/PGEDx) to a 5-pin header on the board edge - this allows in-circuit reprogramming without removing the MCU from the production board.
Do not exceed the absolute maximum supply voltage of 4.0 V on any VDD pin - the PIC24FJ32GA102-I/SS is a 3.3 V part and will latch up if 5 V is applied to any I/O. Ensure MCLR is pulled high through a 10 kohm resistor and never left floating. The two ICSP pin pairs (PGEC1/PGED1 on RB6/RB7 and PGEC2/PGED2 on RC6/RC7) must be used in matching pairs - mixing PGEC1 with PGED2 will prevent programming. Finally, do not enable the ADC's band-gap reference and an external analog channel simultaneously without a settling delay.
Informations de conformité
RoHS and REACH compliance per Microchip product page. Lead-free and halogen-free per Microchip material declarations. PIC24FJ32GA102-I/SS is industrial-grade, not AEC-Q100 qualified; for automotive designs use PIC24FJ32GA102-E/SS or a PIC24HJ automotive variant.
