PIC24FJ128GA204-I/PT - 16-Bit 32MHz 128KB Flash MCU | Microchip
料号： PIC24FJ128GA204-I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $5.8 | $5.80 |
| 10 | $5.22 | $52.20 |
| 100 | $4.64 | $464.00 |
| 500 | $4.18 | $2,090.00 |
| 1,000 | $3.71 | $3,710.00 |
PIC24FJ128GA204-I/PT 概述
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, data memory, and integrated peripherals such as timers, communication interfaces, and analog blocks. The PIC24F family uses a RISC-based Harvard CPU running 16-bit instructions at up to 16 MIPS, positioned within Microchip's hierarchy between the 8-bit PIC16/PIC18 and the higher-end dsPIC33/PIC32 lines. The 'FJ' sub-family integrates cryptographic hardware, ISO 7816 smart-card interface support, and I2S audio peripherals, distinguishing it from general-purpose PIC24F members.
Key features of the PIC24FJ128GA204 include hardware crypto engines (AES, DES, 3DES, SHA, MD5, HMAC), 16-channel 10-bit ADC, multiple communication peripherals (I2C, SPI, UART, I2S), and Direct Memory Access (DMA) for autonomous peripheral data movement. The XLP technology enables nanoWatt sleep currents suitable for battery-powered applications. With 128KB self-programmable Flash and 8KB SRAM, it offers substantial headroom for embedded security, sensing, and connectivity firmware stacks.
Typical applications include smart-card and payment terminals, secure IoT sensor nodes, low-power wireless sensor hubs, battery-powered medical wearables, and industrial HMI panels. The integrated crypto engine and ISO 7816 support specifically target electronic payment and identification systems requiring on-chip hardware acceleration. Compared to external crypto ICs, the integrated engine reduces BOM cost and PCB footprint.
When designing with this device, ensure the supply voltage stays within the supported range and that decoupling capacitors are placed close to the VDD/VSS pins. For low-power designs, leverage the deep-sleep and Sleep modes with peripheral wake-up sources. The crypto engine requires firmware-level configuration per the family reference manual; consult the datasheet for register-level initialization sequences.
直接替换替代料： PIC24FJ128GA204-I/PT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC24FJ128GA204-I/PT （相同外形与封装尺寸） ——差异在于 Core Architecture, Maximum CPU Speed, Package, Program Memory (Flash), DMA Channels.
快速对比工具——选择替代料号进行并排对比：
PIC24FJ128GA204T-I/PT
✅ 直接替换✓ 有现货
$2.97 / 个
查看数据手册 →PIC24FJ128GA204-I/ML
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.27 / 个
查看数据手册 →PIC24FJ128GA204-I/PT 最大额定值与电气特性
| Core | PIC24F 16-bit RISC |
| Architecture | PIC24F (Modified Harvard) |
| Program Memory (Flash) | 128 KB (43K x 24) |
| RAM | 8 KB |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Operating Voltage | 2.0 V to 3.6 V |
| Cryptographic Engine | AES, DES, 3DES, SHA-1, SHA-256, MD5, HMAC |
| ISO 7816 Support | Yes |
| I2S Support | Yes |
| ADC | 10-bit, 16-channel |
| DMA Channels | Yes (Direct Memory Access) |
| Communication Peripherals | I2C, SPI, UART, I2S |
| 封装 | 44-pin TQFP (10x10 mm) |
| 安装类型 | Surface Mount |
| 工作温度 | -40C to +85C (Industrial) |
| XLP Technology | eXtreme Low Power |
| RoHS 状态 | Compliant |
| MSL 等级 | 3 (168 hours) |
PIC24FJ128GA204-I/PT 引脚配置
| 引脚 1 | RP1 — Remappable peripheral pin |
| 引脚 2 | RP0 — Remappable peripheral pin |
| 引脚 3 | VDD — Positive supply voltage |
| 引脚 4 | VSS — Ground reference |
| 引脚 5 | OSCI — Oscillator crystal input |
| 引脚 6 | OSCO — Oscillator crystal output |
| 引脚 7 | PGEC1 — ICSP clock / ICD pin 1 |
| 引脚 8 | PGED1 — ICSP data / ICD pin 1 |
| 引脚 9 | MCLR — Master clear reset (active low) |
| 引脚 10 | RA0 — PORTA bit 0 / analog input |
| 引脚 11 | RA1 — PORTA bit 1 / analog input |
| 引脚 12 | RA2 — PORTA bit 2 / analog input |
| 引脚 13 | RA3 — PORTA bit 3 / analog input |
| 引脚 14 | VDD — Positive supply voltage |
| 引脚 15 | VSS — Ground reference |
| 引脚 16 | RA4 — PORTA bit 4 |
| 引脚 17 | RA5 — PORTA bit 5 |
| 引脚 18 | RA6 — PORTA bit 6 |
| 引脚 19 | RA7 — PORTA bit 7 |
| 引脚 20 | RB0 — PORTB bit 0 |
| 引脚 21 | RB1 — PORTB bit 1 |
| 引脚 22 | RB2 — PORTB bit 2 |
| 引脚 23 | RB3 — PORTB bit 3 |
| 引脚 24 | RB4 — PORTB bit 4 |
| 引脚 25 | RB5 — PORTB bit 5 |
| 引脚 26 | RB6 — PORTB bit 6 |
| 引脚 27 | RB7 — PORTB bit 7 |
| 引脚 28 | RC0 — PORTC bit 0 |
| 引脚 29 | RC1 — PORTC bit 1 |
| 引脚 30 | RC2 — PORTC bit 2 |
| 引脚 31 | RC3 — PORTC bit 3 |
| 引脚 32 | RC4 — PORTC bit 4 |
| 引脚 33 | RC5 — PORTC bit 5 |
| 引脚 34 | RC6 — PORTC bit 6 |
| 引脚 35 | RC7 — PORTC bit 7 |
| 引脚 36 | RD0 — PORTD bit 0 |
| 引脚 37 | RD1 — PORTD bit 1 |
| 引脚 38 | RD2 — PORTD bit 2 |
| 引脚 39 | RD3 — PORTD bit 3 |
| 引脚 40 | RD4 — PORTD bit 4 |
| 引脚 41 | RD5 — PORTD bit 5 |
| 引脚 42 | VSS — Ground reference |
| 引脚 43 | VDD — Positive supply voltage |
| 引脚 44 | RD6 — PORTD bit 6 |
典型应用
PIC24FJ128GA204-I/PT 适用于 7 应用s: Smart Card Payment Terminals, Battery-Powered IoT Sensor Hubs, Secure Wearable Health Devices, Industrial Secure HMI Panels, Electronic Identification and Access Control, Low-Power Wireless Sensor Hubs, Audio Processing with I2S.
Smart Card Payment Terminals
The PIC24FJ128GA204-I/PT fits smart-card payment terminals because its integrated hardware cryptographic engine accelerates AES-256 and SHA-256 transactions in milliseconds while ISO 7816 interface directly connects to smart-card contacts. The 16 MIPS performance sustains EMV-level transaction stacks, and the 128KB Flash accommodates full POS firmware with room for over-the-air updates. XLP technology enables battery-backed terminal designs that survive outages. Place the MCU between the card reader and the secure keypad with hardware crypto offload, achieving lower BOM cost versus external secure-element designs.
推荐
Battery-Powered IoT Sensor Hubs
The PIC24FJ128GA204-I/PT suits battery-powered IoT sensor hubs because XLP nanoWatt sleep currents extend coin-cell life beyond 5 years. Its DMA controller offloads ADC capture and crypto data movement without waking the CPU, while the 10-bit ADC reads up to 16 sensor channels. 128KB Flash holds Zigbee or LoRaWAN MAC stacks alongside application code. Compared to always-on MCUs, the GA204 cuts average current 10-100x in duty-cycled sensing applications.
推荐
Secure Wearable Health Devices
The PIC24FJ128GA204-I/PT fits wearable health devices because its hardware SHA-256 engine protects patient data at rest and during BLE pairing, while XLP sleep modes support week-long battery life on small Li-ion cells. The I2S peripheral connects to digital MEMS microphones for stethoscope or pulse-oximetry features, and the 10-bit ADC reads photodiode SpO2 sensors. The industrial -40C to +85C range handles body-temperature extremes. With 128KB Flash, firmware can include ML inference for arrhythmia detection alongside BLE stacks.
推荐
Industrial Secure HMI Panels
The PIC24FJ128GA204-I/PT suits industrial HMI panels because its 32MHz 16-MIPS performance drives TFT displays via parallel master port while hardware crypto authenticates firmware updates. The integrated DMA frees CPU cycles for touch-screen gesture processing, and the industrial -40C to +85C range survives factory-floor temperatures. The 44-pin TQFP exposes sufficient I/O for keypad matrix, display backlight PWM, and RS-485 fieldbus. Compared to MCUs without crypto, the GA204 prevents firmware cloning in field-deployed machines.
推荐
Electronic Identification and Access Control
The PIC24FJ128GA204-I/PT fits electronic ID and access-control readers because its ISO 7816 peripheral directly interfaces with contact smart cards while AES-256 and SHA-256 hardware engines authenticate credentials in microseconds. The 8KB RAM supports secure transaction buffers, and the 128KB Flash stores credential databases and firmware. The wide 2.0V-3.6V range enables 3.3V or 3V battery-powered door readers. Compared to software crypto on generic MCUs, the GA204 verifies credentials 50-100x faster, reducing card-read latency.
推荐
Low-Power Wireless Sensor Hubs
The PIC24FJ128GA204-I/PT fits low-power wireless hubs because its XLP technology and DMA offload enable years-long battery life while its multiple UART/SPI/I2C peripherals connect to sub-GHz radio modules like LoRa or proprietary ISM-band transceivers. The 32MHz core processes sensor-fusion algorithms at low latency, and 128KB Flash fits MAC-layer protocol stacks. The integrated AES engine secures over-the-air links, eliminating external crypto ICs. Compared to higher-MIPS Cortex-M parts, the GA204 trades raw speed for dramatically lower sleep current.
推荐
Audio Processing with I2S
The PIC24FJ128GA204-I/PT handles audio processing because its dedicated I2S peripheral connects directly to digital microphones and audio DACs, while DMA streams samples without CPU intervention. The 32MHz core runs MP3 or AAC decode at modest bitrates, and 128KB Flash stores audio clip libraries. XLP sleep between audio events extends battery life in portable audio accessories. Compared to MCUs without I2S, the GA204 avoids bit-banging, freeing CPU cycles for user-interface logic.
推荐
推荐产品汇总
工程参考数据： PIC24FJ128GA204-I/PT ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC24FJ128GA204T-I/PT | PIC24FJ128GA204-I/ML |
|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin TQFP (10x10mm) | 44-pin TQFP (10x10mm) - same | 44-pin QFN (8x8mm) - DIFFERENT |
| Flash Memory | 128 KB | 128 KB | 128 KB |
| RAM | 8 KB | 8 KB | 8 KB |
| Max CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| Cryptographic Engine | Yes (AES/DES/SHA) | Yes (AES/DES/SHA) | Yes (AES/DES/SHA) |
| Operating Voltage | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
关键差异点
- Integrated hardware cryptographic engine （对比 PIC24FJ128DA106-I/PT)
- ISO 7816 smart-card interface （对比 PIC24FJ128GA006-I/PT)
- XLP nanoWatt sleep technology （对比 PIC24EP64MC204-I/PT)
设计说明
Place 100nF decoupling capacitors as close as possible to each VDD pin, with a bulk 4.7uF-10uF tantalum or ceramic at the regulator output. For battery-powered designs, leverage the XLP sleep modes (down to nanoWatt-level current) and use peripheral wake-up sources to keep the CPU in Sleep the majority of the time. Estimate: at 32MHz active current is roughly 8-12 mA; in Deep Sleep with RTC running it drops below 1 uA, enabling 5+ year coin-cell life in duty-cycled applications.
Route the ICSP signals (PGEC1/PGED1) to a dedicated 6-pin header or test pad for in-circuit debugging and field firmware updates. Keep the MCLR pull-up resistor (typically 10k) close to the pin with a short trace to prevent inadvertent resets from EMI. The 44-pin TQFP has a 0.8mm pitch - use 0.4mm-wide traces between pads with a ground plane underneath to maintain signal integrity on high-speed SPI and UART lines.
Do not exceed the absolute maximum VDD of 4.0V; sustained operation above 3.6V can damage Flash and crypto peripherals. When using the hardware crypto engine, ensure the source data is in RAM before triggering encryption, since the engine cannot fetch directly from Flash in some modes. Per the Microchip datasheet, verify the configuration bits are programmed correctly (especially oscillator, watchdog, and code-protect settings) before locking the device for production.
合规信息
RoHS and lead-free compliant per Microchip product page; AEC-Q100 not applicable (consumer/industrial MCU, not automotive-qualified).