PIC24FJ48GA002-I/SS - 16-bit 32MHz 48KB Flash MCU | Microchip
MPN： PIC24FJ48GA002-I/SS ✓ 啟用中PIC24FJ48GA002-I/SS 概覽
A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, and integrated peripherals. The PIC24F family sits in the 16-bit tier of Microchip's portfolio - higher performance than 8-bit PIC10/12/16 devices, lower cost and power than 32-bit PIC32 parts. Within that hierarchy, the PIC24FJ48GA002 belongs to the General Purpose (GA) subgroup of the PIC24FJ family, with on-chip Flash suitable for mass-produced consumer and industrial designs.
Key features include 17-bit x 17-bit single-cycle hardware multiply, 32-bit/16-bit hardware divide, a C-compiler-optimized instruction set, a 10-channel 10-bit ADC, 5 PWM outputs, 7 timers, and a Real-Time Clock/Calendar (RTCC) module. Multiple communication peripherals (2 UART, 1 SPI, 1 I2C) plus two analog comparators provide flexible mixed-signal integration. The device operates from 2.0 V to 3.6 V, suiting battery-powered and USB-powered designs.
The architecture uses a 16-bit modified Harvard design with separate program (Flash) and data (SRAM) buses, an 8-level deep hardware stack, and a 16x16-bit working register array. The internal FRC oscillator with PLL delivers up to 32 MHz without external components, reducing BOM cost and PCB area in space-constrained designs.
Typical applications include low-power consumer electronics, sensor nodes, USB human-interface devices, handheld instruments, and motor-control reference platforms. The wide peripheral set and 16 MIPS performance also suit general-purpose industrial controllers, while the small 28-pin SSOP footprint helps in compact modules.
When designing, ensure decoupling per Microchip's recommended layout (100 nF plus 10 uF bulk near VDD/AVDD pairs). For programming, Microchip's MPLAB X IDE supports the part natively and the Explorer 16/32 Development Board PIM sockets enable quick bring-up with the same code base.
This page synthesizes distributor pricing, drop-in alternatives from the PIC24F family, and practical design notes not found in the bare datasheet, helping engineers choose and source the right part faster.
直接替換替代品，適用於 PIC24FJ48GA002-I/SS — 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： PIC24FJ48GA002-I/SS （相同外形與佔位） — 差異在於 Package, ADC, Operating Temperature, Timers, Core.
PIC24FJ64GA002-I/SS
✅ 直接替換聯絡詢價
查看資料表 →PIC24FJ32GA002-I/SS
✅ 直接替換📋 參考替代品（不在目錄中）
PIC24FJ64GA004-I/SS
✅ 直接替換📋 參考替代品（不在目錄中）
PIC24FJ64GB002-I/SS
✅ 直接替換聯絡詢價
查看資料表 →PIC24FJ32GB002-I/SS
✅ 直接替換聯絡詢價
查看資料表 →PIC24FJ16MC101-I/SS
✅ 直接替換聯絡詢價
查看資料表 →PIC24FJ48GA002-I/SS 最大額定值與電氣特性
| Core | PIC24F (16-bit RISC, modified Harvard) |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 48 KB (16K x 24 instructions) |
| Data RAM | 8 KB (8192 bytes) |
| Operating Voltage Range | 2.0 V to 3.6 V |
| I/O Pins | 21 |
| 封裝 | 28-pin SSOP (5.30 mm) |
| ADC | 10-bit, up to 10 channels |
| PWM Channels | 5 |
| Timers | 7 (including 16-bit and 32-bit options) |
| UART | 2 modules |
| SPI | 1 module |
| I2C | 1 module |
| Analog Comparators | 2 |
| 工作溫度 | -40 C to +85 C (Industrial) |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
| Hardware Multiply | 17 x 17 single-cycle |
| Hardware Divide | 32 / 16 bit |
PIC24FJ48GA002-I/SS 腳位配置
| 腳位 1 | RA0 — Port A bit 0 / analog input AN0 |
| 腳位 2 | RA1 — Port A bit 1 / analog input AN1 |
| 腳位 3 | RA2 — Port A bit 2 / analog input AN2 |
| 腳位 4 | RA3 — Port A bit 3 / analog input AN3 / VREF+ |
| 腳位 5 | RA4 — Port A bit 4 / analog input AN4 |
| 腳位 6 | AVDD — Analog supply voltage |
| 腳位 7 | AVSS — Analog ground |
| 腳位 8 | RA5 — Port A bit 5 |
| 腳位 9 | RA6 — Port A bit 6 |
| 腳位 10 | RA7 — Port A bit 7 |
| 腳位 11 | RB0 — Port B bit 0 / PGED1 programming |
| 腳位 12 | RB1 — Port B bit 1 / PGEC1 programming |
| 腳位 13 | RB2 — Port B bit 2 |
| 腳位 14 | RB3 — Port B bit 3 |
| 腳位 15 | RB4 — Port B bit 4 |
| 腳位 16 | RB5 — Port B bit 5 |
| 腳位 17 | RB6 — Port B bit 6 |
| 腳位 18 | RB7 — Port B bit 7 |
| 腳位 19 | VSS — Digital ground |
| 腳位 20 | VDD — Digital supply voltage |
| 腳位 21 | RC0 — Port C bit 0 |
| 腳位 22 | RC1 — Port C bit 1 |
| 腳位 23 | RC2 — Port C bit 2 |
| 腳位 24 | RC3 — Port C bit 3 |
| 腳位 25 | RC4 — Port C bit 4 |
| 腳位 26 | RC5 — Port C bit 5 |
| 腳位 27 | RC6 — Port C bit 6 |
| 腳位 28 | RC7 — Port C bit 7 |
典型應用
PIC24FJ48GA002-I/SS 適用於 6 應用s: Low-Power Sensor Hub with USB HID, Handheld Battery-Powered Instrument, Industrial Control Logic Controller, USB Human Interface Device (Keyboard/Mouse/Gamepad), Motor Control Reference Platform, Consumer Appliance Control Board.
Low-Power Sensor Hub with USB HID
The PIC24FJ48GA002-I/SS fits sensor-hub designs that need clean ADC readings and USB Human-Interface-Device connectivity over 3.3 V. The 10-channel 10-bit ADC reads temperature, light, and motion sensors at adequate resolution for human-facing UI feedback, while 48 KB Flash comfortably holds Microchip's USB HID stack plus application code with room for protocol extensions. The 21 I/O pins drive status LEDs, accept button inputs, and bit-bang I2C sensor buses. Note that this MCU lacks hardware USB; for true USB On-The-Go choose PIC24FJ64GB002-I/SS, which shares the SSOP-28 footprint but integrates the USB peripheral. Power budget benefits from the 2.0 V minimum supply, enabling two-AA-battery operation with a boost converter.
推薦
Handheld Battery-Powered Instrument
For handheld test instruments such as digital multimeters and remote control units, the PIC24FJ48GA002-I/SS provides the right balance of MIPS, Flash, and peripherals. The 32 MHz core delivers 16 MIPS, enough to drive character or graphical LCDs via bit-banged parallel or SPI interfaces while servicing button scans and ADC measurements. The wide 2.0 V to 3.6 V supply range allows direct operation from two alkaline AA cells, eliminating boost circuitry. Five PWM channels control LED backlights or haptic feedback, and the RTCC module (where available in the family) keeps wall-clock time. The 28-SSOP footprint at 5.30 mm body height fits inside slim plastic enclosures, while the industrial -40 C to +85 C rating covers outdoor and automotive-cabin use.
推薦
Industrial Control Logic Controller
In industrial control modules, the PIC24FJ48GA002-I/SS handles digital I/O, analog sensing, and isolated communications in a small footprint. The 21 I/O pins drive relays, optocouplers, and indicator LEDs with 5 V-tolerant options on selected pins (per datasheet), while the 10-bit ADC reads 4-20 mA loop sensors through external shunt resistors. The two UART modules bridge to RS-485 transceivers for Modbus RTU, the SPI peripheral drives external DAC or display chips, and I2C manages EEPROM-backed configuration storage. Industrial operating temperature range (-40 C to +85 C) supports factory-floor deployment. The 48 KB Flash provides firmware headroom for state-machine logic, while the 16 MIPS performance keeps latency low in deterministic control loops.
推薦
USB Human Interface Device (Keyboard/Mouse/Gamepad)
HID peripherals such as keyboards, mice, and game controllers pair well with the PIC24FJ48GA002-I/SS when firmware size and I/O count dominate. The 21 I/O pins scan matrix keypads up to 4x5 plus indicator LEDs, while 48 KB Flash hosts Microchip's USB HID bootloader and class driver. Hardware multiplier helps process debounce and HID report formatting in real time. Although this MCU lacks hardware USB, designers add a USB3320 or MCP2210 USB transceiver or use the software-bit-bang approach. A design upgrade path exists to PIC24FJ64GB002-I/SS, which retains the SSOP-28 footprint but adds integrated USB peripheral for code-simpler designs.
推薦
Motor Control Reference Platform
Small brushed DC and stepper motor reference designs leverage the PIC24FJ48GA002-I/SS's 5 PWM channels, 7 timers, and 16 MIPS core. The 5 PWM outputs drive H-bridge MOSFET drivers for two DC motors or one stepper, with hardware timers capturing encoder feedback for closed-loop speed control. The 10-bit ADC samples shunt-resistor current sensing for soft-start protection. Designers port firmware easily to the dedicated PIC24FJ16MC101-I/SS motor-control variant in the same SSOP-28 footprint when cost matters most, although Flash drops to 16 KB. The 3.3 V supply rail pairs cleanly with logic-level gate drivers such as the MCP14E4 family.
推薦
Consumer Appliance Control Board
Consumer appliances such as coffee makers, air purifiers, and small kitchen gadgets integrate the PIC24FJ48GA002-I/SS for timing, sensing, and user-interface control. The 21 I/O interface with capacitive touch sensing ICs, triac-driven heaters, and segment-style LCDs; the 5 PWM outputs modulate LED brightness or blower fan speed; and the RTCC keeps schedule-based programs. With 48 KB Flash, designers include branding splash screens, multi-language menus, and diagnostic logs. The 2.0 V minimum supply helps brown-out handling during brownouts, and the SSOP-28 package survives the higher-temperature profiles of enclosed appliances, especially when paired with conformal coating in humid environments.
推薦
推薦產品摘要
工程參考資料，適用於 PIC24FJ48GA002-I/SS — 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 | PIC24FJ64GA002-I/SS | PIC24FJ32GA002-I/SS | PIC24FJ64GA004-I/SS | PIC24FJ64GB002-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 | 48 KB | 64 KB | 32 KB | 64 KB | 64 KB |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Max CPU Speed | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) |
| I/O Pins | 21 | 21 | 21 | 21 | 21 |
| USB Peripheral | No | No | No | No | Yes (USB OTG) |
| 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 |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
主要差異化特點
- Balanced 48 KB Flash + 8 KB RAM in 28-SSOP with industrial -40 C to +85 C rating (對比PIC24FJ32GA002-I/SS)
- Drop-in upgrade path to USB-OTG within the same footprint (對比PIC24FJ64GB002-I/SS)
- 5 PWM channels and 7 timers for motor-control fan-out (對比PIC24FJ16MC101-I/SS)
設計說明
The PIC24FJ48GA002-I/SS requires a bulk 10 uF plus 100 nF ceramic decoupling capacitor on each VDD/AVDD pair, placed within 5 mm of the IC pins. The wide 2.0 V to 3.6 V supply range allows direct operation from two alkaline AA cells via a low-Iq LDO such as MCP1700. Power-saving modes (Sleep, Idle, and the on-chip RTCC with external 32.768 kHz crystal) let idle current drop below 1 uA in typical designs, ideal for battery-driven sensor nodes.
Route the 32.768 kHz crystal traces (SOSCO/SOSCI) as short, guard-bounded pairs to prevent noise coupling into the RTC. Place the crystal within 5 mm of the MCU and keep digital traces away from its traces. Place 100 nF ceramic capacitors on every VDD/AVDD pin even if the datasheet groups them - impedance matters at 32 MHz switching transients. Use a solid ground plane beneath the SSOP-28 footprint for thermal dissipation and EMI control.
Three common pitfalls to avoid: (1) Do NOT assume the MCU has a hardware USB peripheral - the PIC24FJ48GA002 lacks USB and requires an external transceiver for HID designs; step up to PIC24FJ64GB002-I/SS for true USB OTG. (2) Brown-out reset must be configured in firmware at 2.0 V minimum to avoid Flash corruption during battery droop. (3) JTAG/ICSP pins (PGED1/PGEC1 on RB0/RB1) must be left free or carefully managed if not used for programming - otherwise debug becomes impossible.
合規資訊
RoHS and REACH compliance per Microchip product environmental documentation. Industrial -40 C to +85 C temperature grade (I suffix); not AEC-Q100 qualified. Lead-free matte-tin plating suitable for reflow at 260 C peak per JEDEC J-STD-020.
