PIC24FJ48GA002-E/SO - 16-bit 32MHz MCU, 48KB Flash, 28-SOIC
MPN： PIC24FJ48GA002-E/SO ✓ 啟用中PIC24FJ48GA002-E/SO 概覽
Background: a PIC microcontroller (MCU = MicroController Unit) is a compact, self-contained computer-on-a-chip integrating a CPU, non-volatile Flash program memory, volatile RAM, and configurable peripherals on a single silicon die. The PIC24F family extends the 8-bit PIC architecture into 16-bit territory with a modified Harvard bus, single-cycle instruction execution, hardware multiply/divide, and a C-optimized instruction set that competes head-to-head with ARM Cortex-M0 in cost-sensitive embedded designs.
Key features include 17x17-bit hardware multiply, 32-bit/16-bit hardware divide, an internal 8 MHz oscillator (±2% accuracy), 4.5 V-tolerant digital I/O, a real-time clock and calendar (RTCC) module, and nanoWatt Technology for sleep currents down to 20 nA typical. The device operates from 2.0 V to 3.6 V across an industrial -40°C to +125°C range. Integrated peripherals include a 10-bit ADC with up to 16 input channels, five 16-bit timers, two comparators, and a charge time measurement unit (CTMU) for capacitive touch sensing.
Typical applications include consumer electronics (appliance controls, toys, remote controls), industrial sensor nodes, low-cost graphical displays (via PMP or SPI+GLCD), USB bridge devices (with an external transceiver), portable data loggers, and educational platforms such as the Microchip Explorer 16/32 development board. The wide -40°C to +125°C temperature window and the -E (industrial) operating range make the part well suited to factory-floor instrumentation.
Designers should note that PIC24FJ48GA002-E/SO uses the standard 28-SOIC wide footprint shared with many PIC24FJXXGA0XX variants; firmware is developed in MPLAB X IDE with the XC16 compiler, programmed via ICSP (In-Circuit Serial Programming) on the PGECx/PGEDx pair. The Explorer 16 PIM socket allows designers to swap silicon revisions without PCB rework.
This page synthesizes distributor pricing as of 2026-09-30, drop-in same-package alternatives drawn from the PIC24FJ GA family, and practical engineering design guidance that goes beyond the manufacturer datasheet table of contents.
直接替換替代品，適用於 PIC24FJ48GA002-E/SO — 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-E/SO （相同外形與佔位） — 差異在於 Package, Core Architecture, Operating Temperature, Program Memory (Flash), MSL Level.
PIC24FJ32GA002-E/SO
✅ 直接替換聯絡詢價
查看資料表 →PIC24FJ64GA002-E/SO
✅ 直接替換聯絡詢價
查看資料表 →PIC24FJ16GA002-E/SO
✅ 直接替換聯絡詢價
查看資料表 →PIC24FJ48GA002-E/SS
✅ 直接替換📋 參考替代品（不在目錄中）
PIC24FJ48GA004-E/SO
✅ 直接替換📋 參考替代品（不在目錄中）
PIC24FJ48GA002-E/SO 最大額定值與電氣特性
| Core | PIC24F 16-bit RISC |
| Program Memory (Flash) | 48 KB (16K x 24 instruction words) |
| RAM | 8 KB (8192 bytes) |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| 供應電壓 | 2.0 V to 3.6 V |
| I/O Pins | 21 |
| ADC | 10-bit, up to 16 channels |
| Timers | Five 16-bit |
| UART | 2 |
| SPI | 2 |
| I2C | 2 |
| Comparators | 2 |
| CTMU | Yes (capacitive touch) |
| 工作溫度 | -40°C to +125°C (industrial, -E) |
| 封裝 | 28-SOIC (7.50 mm wide) |
| 安裝類型 | Surface Mount |
| MSL 等級 | 1 (unlimited floor life) |
| RoHS 狀態 | Compliant |
PIC24FJ48GA002-E/SO 腳位配置
| 腳位 1 | MCLR — Master Clear (Reset) input, active-low |
| 腳位 2 | AN0/VREF+/CVREF+/PMA0/CN2/RB0 — Analog input 0 / Vref+ / Comparator Vref+ / PMA0 / CN2 / RB0 |
| 腳位 3 | AN1/VREF-/CVREF-/PMA1/CN3/RB1 — Analog input 1 / Vref- / Comparator Vref- / PMA1 / CN3 / RB1 |
| 腳位 4 | AN2/C1IN+/CN4/RB2 — Analog input 2 / Comparator 1 IN+ / CN4 / RB2 |
| 腳位 5 | AN3/C1IN-/CN5/RB3 — Analog input 3 / Comparator 1 IN- / CN5 / RB3 |
| 腳位 6 | AN4/C2IN+/CN6/RB4 — Analog input 4 / Comparator 2 IN+ / CN6 / RB4 |
| 腳位 7 | AN5/C2IN-/CN7/RB5 — Analog input 5 / Comparator 2 IN- / CN7 / RB5 |
| 腳位 8 | VSS — Ground |
| 腳位 9 | OSC1/CLKI/CN30/RA0 — Crystal oscillator input / external clock / CN30 / RA0 |
| 腳位 10 | OSC2/CLKO/CN29/RA1 — Crystal oscillator output / clock out / CN29 / RA1 |
| 腳位 11 | PGED1/EMUD1/CN23/RA2 — ICSP data / ICD data / CN23 / RA2 |
| 腳位 12 | PGEC1/EMUC1/CN22/RA3 — ICSP clock / ICD clock / CN22 / RA3 |
| 腳位 13 | SOSCO/T1CK/CN0/RA4 — Secondary oscillator out / T1 clock / CN0 / RA4 |
| 腳位 14 | SOSCI/CN1/RA5 — Secondary oscillator in / CN1 / RA5 |
| 腳位 15 | VDD — Positive supply voltage |
| 腳位 16 | AN6/OCFA/PMBE/CN8/RB6 — Analog input 6 / OC fault A / PMBE / CN8 / RB6 |
| 腳位 17 | AN7/CN9/RB7 — Analog input 7 / CN9 / RB7 |
| 腳位 18 | AN8/CN10/RB8 — Analog input 8 / CN10 / RB8 |
| 腳位 19 | AN9/CN11/RB9 — Analog input 9 / CN11 / RB9 |
| 腳位 20 | AN10/CVREF/CN12/RB10 — Analog input 10 / CVREF out / CN12 / RB10 |
| 腳位 21 | AN11/CN13/RB11 — Analog input 11 / CN13 / RB11 |
| 腳位 22 | AN12/CN14/RB12 — Analog input 12 / CN14 / RB12 |
| 腳位 23 | AN13/CN15/RB13 — Analog input 13 / CN15 / RB13 |
| 腳位 24 | AN14/RTCC/CN16/RB14 — Analog input 14 / RTCC / CN16 / RB14 |
| 腳位 25 | AN15/OCFB/CN17/RB15 — Analog input 15 / OC fault B / CN17 / RB15 |
| 腳位 26 | VSS — Ground |
| 腳位 27 | AVDD — Analog positive supply |
| 腳位 28 | AVSS — Analog ground |
典型應用
PIC24FJ48GA002-E/SO 適用於 6 應用s: Consumer Appliance Control, Industrial Sensor Node / Data Logger, Low-Cost Graphical Display HMI, USB HID Bridge / CDC Device, Capacitive Touch Interface, Educational / Maker Platform.
Consumer Appliance Control
The PIC24FJ48GA002-E/SO's 48 KB Flash and 8 KB RAM comfortably host full-featured appliance firmware (washing machine controllers, induction cooktop UI, microwave keypad controllers), while the 10-bit ADC and 2 comparators simplify sensor interfaces for temperature and level sensing. The nanoWatt sleep current (~20 nA) supports battery-backed clock and countdown modes on a coin cell, extending shelf life. The 28-SOIC wide footprint is hand-solderable for prototype builds and supports high-volume pick-and-place on the production line.
推薦
Industrial Sensor Node / Data Logger
The PIC24FJ48GA002-E/SO's 16 MIPS CPU, two UART channels and two I2C/SPI buses allow simultaneous connection to a sensor front-end, an industrial bus transceiver, and an external EEPROM logger. The -40°C to +125°C industrial temperature range and 2.0-3.6 V supply tolerance suit factory-floor deployments. The CTMU peripheral simplifies capacitive level sensing in tank-mounted nodes, while the real-time clock and calendar (RTCC) timestamps logged events without an external RTC chip.
推薦
Low-Cost Graphical Display HMI
The PIC24FJ48GA002-E/SO drives a small TFT or monochrome graphic LCD through the PMP (Parallel Master Port) peripheral on similar PIC24FJ GA family parts, with 48 KB Flash supporting bitmap fonts and menu structures. The 16 MIPS CPU keeps refresh rates smooth for animated icons. Its 21 I/O pins allocate spare lines to touchscreen interrupt and backlight PWM, enabling complete HMI boards on a single MCU. Wide-voltage 2.0-3.6 V supply matches battery or USB-powered designs.
推薦
USB HID Bridge / CDC Device
When paired with an external USB transceiver such as the MCP2221 or PIC18F14K50, the PIC24FJ48GA002-E/SO presents as a USB HID or CDC device, ideal for PC peripherals (custom keypads, gaming controllers, instrument front panels). The two UART channels handle command and debug streams simultaneously, and the 48 KB Flash accommodates full HID descriptor tables plus vendor-specific reports. The industrial temperature rating suits test-and-measurement enclosures.
推薦
Capacitive Touch Interface
The PIC24FJ48GA002-E/SO integrates Microchip's CTMU (Charge Time Measurement Unit) which, combined with the 10-bit ADC and a few PCB pads, builds up to 16 capacitive touch buttons without an external touch controller IC. The 48 KB Flash supports custom gesture recognition and debounce algorithms. The -40°C to +125°C operating range suits automotive and industrial front panels where mechanical switches would fail. NanoWatt Technology keeps idle touch-wake current in single-digit microamperes.
推薦
Educational / Maker Platform
The PIC24FJ48GA002-E/SO is supported by the Microchip Explorer 16/32 development board via a Processor Plug-In Module (PIM), giving students and makers immediate access to all 21 I/O pins, the ADC, timers, and CTMU on a breadboard-friendly platform. MPLAB X IDE with the free XC16 compiler provides a professional C toolchain with hardware debugging on the PICkit 4 or ICD 4. The wide SOIC package simplifies hand-soldering in classroom settings.
推薦
推薦產品摘要
工程參考資料，適用於 PIC24FJ48GA002-E/SO — 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 | PIC24FJ32GA002-E/SO | PIC24FJ64GA002-E/SO | PIC24FJ16GA002-E/SO | PIC24FJ48GA002-E/SS | PIC24FJ48GA004-E/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC (7.50 mm) | 28-SOIC (7.50 mm) - same | 28-SOIC (7.50 mm) - same | 28-SOIC (7.50 mm) - same | 28-SSOP (5.30 mm) - shrink | 28-SOIC (7.50 mm) - same |
| Flash Memory | 48 KB | 32 KB (-33%) | 64 KB (+33%) | 16 KB (-67%) | 48 KB (same) | 48 KB (same) |
| RAM | 8 KB | 8 KB (same) | 8 KB (same) | 4 KB (-50%) | 8 KB (same) | 8 KB (same) |
| 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 |
| I/O Pins | 21 | 21 | 21 | 21 | 21 | 21 |
| PMP Peripheral | Yes (on similar -/04 variants) | No (use -/04 variant) | No (use -/04 variant) | No (use -/04 variant) | No (use -/04 variant) | Yes |
主要差異化特點
- Mid-tier Flash (48 KB) offers headroom over 32 KB at lower cost than 64 KB (對比PIC24FJ32GA002-E/SO / PIC24FJ64GA002-E/SO)
- Wide-body 28-SOIC supports hand-soldering and inspection (對比PIC24FJ48GA002-E/SS (28-SSOP))
- Industrial -40°C to +125°C operating range for harsh environments (對比PIC24FJ48GA002-I/SO (commercial -40 to +85°C only))
設計說明
Place a 10 uF decoupling capacitor close to VDD (pin 15) and a 100 nF X7R bypass at each adjacent analog VDD (pin 27 AVDD). The PIC24FJ48GA002-E/SO integrates nanoWatt Technology; to minimize sleep current below 1 uA, disable all unused peripherals in their PMDx registers and switch the CPU to Sleep mode via the PWRSAV instruction. The RTCC can be the only running peripheral during sleep, with an interrupt to wake the device on alarm.
Route the 28-SOIC wide footprint with standard SOIC land pattern (1.27 mm pitch). For reliable ICSP programming, keep the PGED1 (pin 11) and PGEC1 (pin 12) traces short and parallel to minimize noise coupling; place an in-line resistor option for each line to allow future debugging isolation. The analog inputs AN0-AN15 on ports B0-B15 should be routed away from switching digital lines to reduce ADC cross-talk.
Do not assume all 28 pins are 5 V-tolerant - the datasheet specifies 4.5 V tolerance on digital I/O only. When interfacing to 5 V sensors, use a level translator (e.g., TXB0108) or a resistor divider. The MCLR pin (pin 1) must be pulled high with a 10 kohm resistor to VDD; leaving MCLR floating causes intermittent resets in noisy environments.
Estimated: at 32 MHz and full peripheral activity, the PIC24FJ48GA002-E/SO draws approximately 25 mA, dissipating roughly 75 mW at 3.3 V; this is well within the 28-SOIC thermal envelope of approximately 100 C/W junction-to-ambient and requires no heatsinking. Sleep current drops to roughly 20 nA with RTCC enabled, enabling battery-backed designs on a CR2032 for multi-year standby life.
合規資訊
RoHS compliant per Microchip product page. Industrial temperature grade (-40 to +125 C) suitable for many non-automotive harsh environments; for AEC-Q100 qualified parts choose PIC24FJ family members specifically marked with automotive suffixes.
