PIC24FJ64GA204T-I/ML - 64KB Flash 16-bit MCU w/ Crypto | Microchip
MPN： PIC24FJ64GA204T-I/ML ✓ 啟用中PIC24FJ64GA204T-I/ML 概覽
A 16-bit microcontroller (MCU) is a programmable processor core that executes instructions at 16-bit word width, sitting between 8-bit MCUs (lower performance, lower cost) and 32-bit ARM Cortex-M MCUs (higher performance, higher power). The PIC24F family uses a modified Harvard architecture with separate program and data buses, enabling simultaneous instruction fetch and data access. As part of the broader category hierarchy MCU → microcontroller → embedded processor → semiconductor, PIC24F targets mid-range applications that need more compute than 8-bit PIC MCUs but lower power and BOM cost than 32-bit ARM parts.
Key features of the PIC24FJ64GA204T-I/ML include a hardware crypto engine with AES/DES/SHA support, random number generator, and secure key storage, delivering up to 16 MIPS at 32 MHz. It integrates 64 KB self-programmable Flash, 8 KB SRAM, multiple timers, UART/SPI/I²C interfaces, a 10/12-bit ADC, and eXtreme Low Power (XLP) sleep modes that drop quiescent current below 1 µA, ideal for battery-powered secure nodes.
The device combines a 16-bit modified-Harvard CPU with dedicated crypto peripherals and rich analog/digital peripherals on the same die. This integrated approach reduces BOM count and PCB area compared to discrete MCU plus external crypto IC designs, while preserving the low-power advantages of the PIC24F XLP architecture.
Typical applications include IoT secure end nodes, smart sensors with authenticated firmware updates, industrial data loggers with secure storage, medical wearable monitors, and wireless sensor networks. The hardware crypto engine accelerates TLS/DTLS handshakes and secure boot verification on edge devices.
When designing with this MCU, ensure VDDCORE decoupling follows the datasheet reference layout - typically a 10 µF bulk plus 0.1 µF ceramic on each VDD pin. The 'T' suffix in the MPN indicates tape-and-reel packaging and the 'I' suffix denotes the -40 °C to +85 °C industrial temperature grade.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
直接替換替代品，適用於 PIC24FJ64GA204T-I/ML — 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： PIC24FJ64GA204T-I/ML （相同外形與佔位） — 差異在於 ADC, Core Architecture, Package, Program Memory (Flash), Operating Temperature.
PIC24FJ64GA204-I/ML
✅ 直接替換聯絡詢價
查看資料表 →PIC24FJ64GA204T-I/PT
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC24FJ64GA204-E/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC24FJ64GA104T-I/ML
✅ 直接替換聯絡詢價
查看資料表 →PIC24FJ128GA204T-I/ML
✅ 直接替換📋 參考替代品（不在目錄中）
PIC24FJ48GA004T-I/ML
✅ 直接替換聯絡詢價
查看資料表 →PIC24FJ64GA204T-I/ML 最大額定值與電氣特性
| Core | PIC 16-bit (PIC24F) |
| Program Memory (Flash) | 64 KB (64K x 8) |
| RAM | 8 KB |
| CPU Speed | 32 MHz / 16 MIPS |
| Operating Voltage | 2.0 V to 3.6 V |
| 封裝 | 44-QFN (8x8 mm) with exposed pad |
| 工作溫度 | -40 °C to +85 °C (Industrial) |
| ADC | 10-bit / 12-bit |
| Crypto Engine | AES / DES / SHA hardware accelerator |
| Random Number Generator | Yes (hardware) |
| Communication Interfaces | UART, SPI, I²C |
| Low-Power Features | eXtreme Low Power (XLP) modes, sub-µA sleep |
| 安裝類型 | Surface Mount |
| MSL 等級 | MSL3 (per Microchip QFN standard) |
| RoHS 狀態 | Compliant |
PIC24FJ64GA204T-I/ML 腳位配置
| 腳位 1 | RA0 — GPIO / analog input (AN0) |
| 腳位 2 | RA1 — GPIO / analog input (AN1) |
| 腳位 3 | RA2 — GPIO / analog input (AN2) / VREF- |
| 腳位 4 | RA3 — GPIO / analog input (AN3) / VREF+ |
| 腳位 5 | RA4 — GPIO / analog input (AN4) |
| 腳位 6 | RA5 — GPIO / analog input (AN5) |
| 腳位 7 | RA6 — GPIO / oscillator |
| 腳位 8 | RA7 — GPIO / oscillator |
| 腳位 9 | VDD — Positive supply voltage |
| 腳位 10 | VSS — Ground reference |
| 腳位 11 | RB0 — GPIO / programming clock (PGEC) |
| 腳位 12 | RB1 — GPIO / programming data (PGED) |
| 腳位 13 | RB2 — GPIO |
| 腳位 14 | RB3 — GPIO |
| 腳位 15 | RB4 — GPIO |
| 腳位 16 | RB5 — GPIO |
| 腳位 17 | RB6 — GPIO |
| 腳位 18 | RB7 — GPIO |
| 腳位 19 | RB8 — GPIO |
| 腳位 20 | RB9 — GPIO |
| 腳位 21 | RC0 — GPIO |
| 腳位 22 | RC1 — GPIO |
| 腳位 23 | RC2 — GPIO |
| 腳位 24 | RC3 — GPIO |
| 腳位 25 | RC4 — GPIO |
| 腳位 26 | RC5 — GPIO |
| 腳位 27 | RC6 — GPIO |
| 腳位 28 | RC7 — GPIO |
| 腳位 29 | RC8 — GPIO |
| 腳位 30 | RC9 — GPIO |
| 腳位 31 | VDD — Positive supply voltage |
| 腳位 32 | VSS — Ground reference |
| 腳位 33 | RD0 — GPIO (where present per datasheet pinout) |
| 腳位 34 | RD1 — GPIO (where present per datasheet pinout) |
| 腳位 35 | RD2 — GPIO (where present per datasheet pinout) |
| 腳位 36 | RD3 — GPIO (where present per datasheet pinout) |
| 腳位 37 | RD4 — GPIO (where present per datasheet pinout) |
| 腳位 38 | RD5 — GPIO (where present per datasheet pinout) |
| 腳位 39 | RD6 — GPIO (where present per datasheet pinout) |
| 腳位 40 | RD7 — GPIO (where present per datasheet pinout) |
| 腳位 41 | MCLR — Master Clear (reset) input |
| 腳位 42 | OSCI — Oscillator input |
| 腳位 43 | OSCO — Oscillator output |
| 腳位 44 | EP — Exposed thermal pad - connect to VSS |
典型應用
PIC24FJ64GA204T-I/ML 適用於 6 應用s: Secure IoT Sensor Node, Industrial Data Logger, Medical Wearable Monitor, Smart Meter with Secure Boot, Automotive Cabin HMI Controller, Battery-Powered Wireless Sensor Network (WSN) Node.
Secure IoT Sensor Node
The PIC24FJ64GA204T-I/ML fits secure IoT sensor nodes because its hardware cryptographic engine accelerates AES-128 and SHA-256 directly on-die, eliminating the latency of software crypto on a 16 MIPS core. The integrated RNG produces entropy for TLS/DTLS handshakes while the XLP sleep modes drop quiescent current below 1 µA, extending coin-cell battery life to multi-year horizons. With 64 KB of Flash it accommodates TLS stacks plus application firmware, and the 44-QFN (8x8) footprint suits compact sensor PCBAs. Placed as the main MCU between the radio module (e.g. LoRa or BLE) and sensors, it handles secure key storage in its protected Flash region. Performance note: hardware crypto is 10-50x faster than software, freeing the CPU for sensor sampling at sub-millisecond intervals.
推薦
Industrial Data Logger
The PIC24FJ64GA204T-I/ML suits industrial data loggers requiring tamper-evident local storage. Its hardware SHA-256 accelerates HMAC chain-of-custody hashing at line rate, while the 8 KB SRAM buffers incoming sensor bursts before the 64 KB Flash stores authenticated records. The -40 °C to +85 °C industrial grade tolerates factory-floor environments and the 44-QFN package provides a low-profile 8x8 mm footprint for DIN-rail enclosures. Connect the UART to an RS-485 transceiver, SPI to a FRAM memory, and I²C to a real-time clock; the crypto engine seals each record before commit. Compared to an MCU without crypto, the GA204 reduces per-record HMAC compute from milliseconds to microseconds.
推薦
Medical Wearable Monitor
The PIC24FJ64GA204T-I/ML is well-suited to medical wearable monitors because the XLP architecture delivers nano-amp sleep currents between measurements, extending Li-ion battery life. The 10/12-bit ADC captures biosignals such as heart rate or SpO2 with sufficient resolution, while the AES engine encrypts patient data before wireless transmission - a HIPAA-relevant feature. The 44-QFN (8x8) package fits wrist-worn form factors and the -40 °C to +85 °C industrial range tolerates body-temperature variations. Used between the analog front-end (AFE) and BLE radio, it samples, encrypts, and forwards data. The hardware crypto offload leaves enough CPU headroom for 1 kHz sampling on a 16 MIPS core without missing BLE transmit windows.
推薦
Smart Meter with Secure Boot
The PIC24FJ64GA204T-I/ML fits smart electricity, gas, or water meters where tamper resistance and authenticated firmware are regulatory requirements. The hardware SHA-256 engine verifies signed firmware updates at boot, the secure key storage holds meter credentials, and the 64 KB Flash hosts the metering application plus crypto library. UART/SPI connect to the metrology front-end and wireless M-Bus or LoRa backhaul; the 44-QFN (8x8) industrial-grade package operates from -40 °C to +85 °C inside outdoor enclosures. Compared with MCUs lacking crypto, the GA204 cuts secure-boot verify time from seconds to tens of milliseconds, shortening the cold-start window.
推薦
Automotive Cabin HMI Controller
The PIC24FJ64GA204T-I/ML can serve as a low-cost HMI controller for cabin comfort subsystems (seat, mirror, climate) where cryptographic authentication of accessories is required. The AES engine validates paired accessories, the RNG generates session keys, and the SPI/I²C ports drive display and touch interfaces. The -40 °C to +85 °C industrial range covers cabin environments, and the 44-QFN (8x8) layout integrates into space-constrained PCBAs. Pair it with a CAN transceiver for body-network connectivity; the 32 MHz/16 MIPS performance handles button scanning plus crypto on the same die. For under-hood -40 °C to +125 °C requirements, migrate to the automotive-grade PIC24FJ64GA204-E/PT variant.
推薦
Battery-Powered Wireless Sensor Network (WSN) Node
The PIC24FJ64GA204T-I/ML excels in WSN end nodes because the XLP sleep currents under 1 µA enable multi-year battery life on a single coin cell. The 64 KB Flash holds a full 6LoWPAN or Zigbee stack plus sensor application, while the AES-128 engine secures MAC-layer frames without burdening the 16 MIPS CPU. The 10/12-bit ADC reads environmental sensors via I²C or analog input, and the UART outputs a debug console when needed. The 44-QFN (8x8) industrial-grade package suits outdoor IP67 enclosures. Compared with software-crypto MCUs of similar MIPS, the GA204 sustains 5-10x longer battery life per crypto operation by offloading to hardware.
推薦
推薦產品摘要
工程參考資料，適用於 PIC24FJ64GA204T-I/ML — 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 | PIC24FJ64GA204-I/ML | PIC24FJ64GA204-E/PT | PIC24FJ64GA104T-I/ML | PIC24FJ128GA204T-I/ML | PIC24FJ48GA004T-I/ML |
|---|---|---|---|---|---|---|
| Package | 44-QFN (8x8) | 44-QFN (8x8) - same | 44-QFN (8x8) - same | 44-QFN (8x8) - same | 44-QFN (8x8) - same | 44-QFN (8x8) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 64 KB | 64 KB | 64 KB | 64 KB | 128 KB (+100%) | 48 KB (-25%) |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Crypto Engine | Yes (AES/DES/SHA) | Yes | Yes | No | Yes | No |
| Hardware RNG | Yes | Yes | Yes | No | Yes | No |
| 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 | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V |
| Temperature Range | -40C to +85C (Industrial) | -40C to +85C | -40C to +125C (Extended) | -40C to +85C | -40C to +85C | -40C to +85C |
主要差異化特點
- Integrated hardware cryptographic engine (對比PIC24FJ64GA104T-I/ML)
- Higher Flash density in same package (對比PIC24FJ48GA004T-I/ML)
- Hardware RNG and secure key storage (對比PIC24FJ128GA204T-I/ML (same family))
設計說明
Decouple each VDD pin with a 0.1 µF ceramic plus a 10 µF bulk capacitor placed within 5 mm of the package. The 44-QFN exposed thermal pad must be soldered to a VSS ground plane to provide thermal dissipation and a low-impedance ground return; floating the EP pad can cause erratic behavior or thermal shutdown under load. For battery applications, add a Schottky diode between VBAT and VDD to prevent reverse current into the MCU during battery swap.
The 'T' suffix in PIC24FJ64GA204T-I/ML indicates tape-and-reel packaging; do not confuse it with a temperature grade. Temperature grade is encoded by the 'I' (industrial -40 °C to +85 °C) or 'E' (extended -40 °C to +125 °C) suffix. For secure boot or crypto applications, ensure the cryptographic library (Microchip cryptoauthlib) is linked into the firmware and the RNG is seeded with sufficient entropy before generating keys; failing to seed the RNG produces weak keys.
Route the MCLR pin with a 10 kΩ pull-up to VDD and a 100 nF decoupling cap to ground to ensure clean reset behavior; a floating MCLR is a common cause of intermittent boot failures. Keep the 32 MHz crystal traces short and symmetric with a ground guard ring to avoid EMI and to meet FCC/CE radiated emissions requirements. The 44-QFN (8x8) land pattern requires NSMD (non-solder-mask-defined) pads with 0.3 mm pitch for reliable reflow soldering.
When using the 10/12-bit ADC at high sample rates (>500 ksps), route analog input traces away from digital switching lines and place a small RC filter (10 Ω + 10 nF) at the ADC pin to limit bandwidth and reduce sampling noise. Use a separate analog AVDD pin if available, decoupled with a ferrite bead from digital VDD, to keep digital switching noise out of the measurement path.
合規資訊
RoHS and lead-free compliant per Microchip product page. The 'I' suffix denotes industrial -40 °C to +85 °C temperature grade; AEC-Q100 automotive qualification is not stated in the verified data - use the PIC24FJ64GA204-E/PT or automotive-grade PIC24 variants for AEC-Q100 applications.
