PIC32MX664F064HT-I/PT - 80MHz 32-bit MCU 64KB Flash USB Ethernet | Microchip
料号： PIC32MX664F064HT-I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $7.95 | $7.95 |
| 10 | $7.16 | $71.60 |
| 100 | $6.36 | $636.00 |
| 500 | $5.72 | $2,860.00 |
| 1,000 | $5.09 | $5,090.00 |
PIC32MX664F064HT-I/PT 概述
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data RAM, and programmable peripherals. The PIC32MX family specifically uses the MIPS32 M4K core - a 32-bit RISC architecture running at up to 80 MHz - and sits within Microchip's broader portfolio of PIC microcontrollers. MCUs in this class bridge the gap between 8/16-bit controllers and full application processors, and they typically operate without an external memory bus or operating system. The PIC32MX5/6/7 series with integrated Ethernet and USB targets connected-node designs that previously required a separate network processor or external PHY.
Key features include 64 KB (64K x 8) Flash program memory, 32 KB SRAM, 51 digital I/O pins, four DMA channels, two I2C, two SPI, two UART, five 16-bit timers, five input-capture and five output-compare modules, an RTCC, and a 10-bit 1 MSPS ADC with up to 16 channels. The integrated 10/100 Ethernet MAC with RMII/MII interface and USB 2.0 Full-Speed OTG reduce external component count, while the parallel master port (PMP) supports external bus expansion. Hardware crypto/hash is not included on this part.
Architecturally, the M4K core executes most instructions in a single cycle, achieving 1.56 DMIPS/MHz, and the dual-set shadow register file enables fast interrupt response. The 64 KB Flash is organized for self-programming under firmware control, and the 32 KB RAM is large enough for full TCP/IP stacks such as Microchip's MPLAB Harmony networking services.
Typical applications include industrial Ethernet nodes, USB peripherals and device/host/OTG bridges, home-automation gateways, and M2M/IoT connected sensors. Designers use this part when they need a single-chip solution that combines an MCU with deterministic real-time control and Ethernet/USB connectivity.
When designing, ensure the external Ethernet PHY magnetics and 25 MHz oscillator meet the RMII/MII timing budget; for USB-OTG operation, add a 100 uF bulk capacitor on VBUS to meet inrush-current requirements. Keep analog and digital grounds separated under the IC and tie them at a single point near the chip.
This page synthesizes distributor pricing, drop-in PIC32MX alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers evaluate alternatives and lifecycle risk for the PIC32MX664F064HT-I/PT.
直接替换替代料： PIC32MX664F064HT-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： PIC32MX664F064HT-I/PT （相同外形与封装尺寸） ——差异在于 ADC, Operating Temperature, RoHS Status.
快速对比工具——选择替代料号进行并排对比：
PIC32MX664F064H-I/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC32MX664F064HT-V/PT
✅ 直接替换✓ 有现货
$5.04 / 个
查看数据手册 →PIC32MX564F064HT-I/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC32MX664F064LT-I/PT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$4.55 / 个
查看数据手册 →PIC32MX675F256HT-I/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC32MX795F512HT-I/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC32MX664F064HT-I/PT 最大额定值与电气特性
| Core | MIPS32 M4K (32-bit RISC) |
| Operating Frequency | 80 MHz (max) |
| Program Memory (Flash) | 64 KB (64K x 8) |
| Data Memory (SRAM) | 32 KB |
| 封装 | 64-pin TQFP (PT) 10x10 mm |
| 工作温度 | -40C to +85C (Industrial) |
| Supply Voltage (VDD) | 2.3 V to 3.6 V |
| I/O Pins | 51 |
| Ethernet MAC | 10/100 Mbit (RMII/MII) |
| USB | USB 2.0 Full-Speed OTG |
| DMA Channels | 4 |
| ADC | 10-bit, 1 MSPS, up to 16 channels |
| Timers (16-bit) | 5 |
| Input Capture / Output Compare | 5 / 5 |
| UART / SPI / I2C | 2 / 2 / 2 |
| Parallel Master Port (PMP) | Yes |
| 安装类型 | Surface Mount |
| MSL 等级 | 3 (per JEDEC J-STD-020) |
| RoHS 状态 | Compliant |
| Lead-Free | Yes |
PIC32MX664F064HT-I/PT 引脚配置
| 引脚 1 | RPB0/AN0 — Remappable I/O / ADC analog input 0 |
| 引脚 2 | RPB1/AN1 — Remappable I/O / ADC analog input 1 |
| 引脚 3 | RPB2/AN2 — Remappable I/O / ADC analog input 2 |
| 引脚 4 | RPB3/AN3 — Remappable I/O / ADC analog input 3 |
| 引脚 5 | RPB4/AN4 — Remappable I/O / ADC analog input 4 |
| 引脚 6 | RPB5/AN5 — Remappable I/O / ADC analog input 5 |
| 引脚 7 | RPB6/AN6 — Remappable I/O / ADC analog input 6 |
| 引脚 8 | RPB7/AN7 — Remappable I/O / ADC analog input 7 |
| 引脚 9 | RPB8/AN8 — Remappable I/O / ADC analog input 8 |
| 引脚 10 | RPB9/AN9 — Remappable I/O / ADC analog input 9 |
| 引脚 11 | VSS — Ground |
| 引脚 12 | VDD — Core supply (2.3-3.6 V) |
| 引脚 13 | RPB10/AN10 — Remappable I/O / ADC analog input 10 |
| 引脚 14 | RPB11/AN11 — Remappable I/O / ADC analog input 11 |
| 引脚 15 | RPB12/AN12 — Remappable I/O / ADC analog input 12 |
| 引脚 16 | RPB13/AN13 — Remappable I/O / ADC analog input 13 |
| 引脚 17 | RPB14/AN14 — Remappable I/O / ADC analog input 14 |
| 引脚 18 | RPB15/AN15/OCFB — Remappable I/O / ADC analog input 15 / Output Compare F B |
| 引脚 19 | VSS — Ground |
| 引脚 20 | VDD — Core supply (2.3-3.6 V) |
| 引脚 21 | RPC0/INT0 — Remappable I/O / External interrupt 0 |
| 引脚 22 | RPC1/INT1 — Remappable I/O / External interrupt 1 |
| 引脚 23 | RPC2/OC1 — Remappable I/O / Output Compare 1 |
| 引脚 24 | RPC3/OC2 — Remappable I/O / Output Compare 2 |
| 引脚 25 | RPC4/OC3 — Remappable I/O / Output Compare 3 |
| 引脚 26 | RPC5/OC4 — Remappable I/O / Output Compare 4 |
| 引脚 27 | RPC6/OC5 — Remappable I/O / Output Compare 5 |
| 引脚 28 | RPC7/OC6 — Remappable I/O / Output Compare 6 |
| 引脚 29 | RPC8/U1TX — Remappable I/O / UART1 transmit |
| 引脚 30 | RPC9/U1RX — Remappable I/O / UART1 receive |
| 引脚 31 | VSS — Ground |
| 引脚 32 | VDD — Core supply (2.3-3.6 V) |
| 引脚 33 | RPC10/U1CTS — Remappable I/O / UART1 clear-to-send |
| 引脚 34 | RPC11/U1RTS — Remappable I/O / UART1 request-to-send |
| 引脚 35 | RPC12/IC1 — Remappable I/O / Input Capture 1 |
| 引脚 36 | RPC13/IC2 — Remappable I/O / Input Capture 2 |
| 引脚 37 | RPC14/IC3 — Remappable I/O / Input Capture 3 |
| 引脚 38 | RPC15/IC4 — Remappable I/O / Input Capture 4 |
| 引脚 39 | VSS — Ground |
| 引脚 40 | VDD — Core supply (2.3-3.6 V) |
| 引脚 41 | RPD0/INT2 — Remappable I/O / External interrupt 2 |
| 引脚 42 | RPD1/INT3 — Remappable I/O / External interrupt 3 |
| 引脚 43 | RPD2/INT4 — Remappable I/O / External interrupt 4 |
| 引脚 44 | RPD3/INT5 — Remappable I/O / External interrupt 5 |
| 引脚 45 | RPD4/IC5 — Remappable I/O / Input Capture 5 |
| 引脚 46 | RPD5/RTCC — Remappable I/O / Real-Time Clock Calendar |
| 引脚 47 | RPD6/OCFA — Remappable I/O / Output Compare F A |
| 引脚 48 | RPD7/OCFB — Remappable I/O / Output Compare F B |
| 引脚 49 | RPD8/RTCC — Remappable I/O / Real-Time Clock Calendar |
| 引脚 50 | RPD9/RTCC — Remappable I/O / Real-Time Clock Calendar |
| 引脚 51 | VSS — Ground |
| 引脚 52 | VDD — Core supply (2.3-3.6 V) |
| 引脚 53 | RPD10/SCK1 — Remappable I/O / SPI1 clock |
| 引脚 54 | RPD11/SDI1 — Remappable I/O / SPI1 data in |
| 引脚 55 | RPD12/SDO1 — Remappable I/O / SPI1 data out |
| 引脚 56 | RPD13/SS1 — Remappable I/O / SPI1 slave select |
| 引脚 57 | RPD14/SDA1 — Remappable I/O / I2C1 data |
| 引脚 58 | RPD15/SCL1 — Remappable I/O / I2C1 clock |
| 引脚 59 | VSS — Ground |
| 引脚 60 | VDD — Core supply (2.3-3.6 V) |
| 引脚 61 | RPG6/SOSCO — Secondary oscillator output (32.768 kHz) |
| 引脚 62 | RPG7/SOSCI — Secondary oscillator input (32.768 kHz) |
| 引脚 63 | RPG8/RX2 — Remappable I/O / UART2 receive |
| 引脚 64 | MCLR — Master clear reset (active low) |
典型应用
PIC32MX664F064HT-I/PT 适用于 7 应用s: Industrial Ethernet Node, USB Device/Host/OTG Peripheral, Home Automation Gateway, M2M / IoT Connected Sensor, USB-to-UART / USB-to-SPI Bridge, Audio Streaming over Ethernet (Dante/AES67 Lite), Industrial HMI / Control Panel.
Industrial Ethernet Node
The PIC32MX664F064HT-I/PT is well suited for industrial Ethernet nodes thanks to its integrated 10/100 Mbit MAC (RMII/MII), 80 MHz MIPS32 core, and -40C to +85C industrial temperature rating. The on-chip MAC eliminates an external network controller, leaving only a PHY, isolation transformers, and an RJ45 jack external to the MCU. With 64 KB Flash and 32 KB RAM, the part runs Microchip's MPLAB Harmony TCP/IP stack alongside a Modbus TCP, EtherNet/IP, or PROFINET application layer. The four DMA channels offload packet-copy and ADC operations so the CPU can service the real-time control loop deterministically.
推荐
USB Device/Host/OTG Peripheral
The PIC32MX664F064HT-I/PT integrates USB 2.0 Full-Speed OTG, making it ideal for USB peripherals such as data loggers, HID devices, and CDC-class virtual COM ports. The OTG controller supports both host and device roles, enabling dual-role designs like USB memory-stick data transfer or smartphone charging ports. The 32 KB SRAM comfortably holds USB descriptors and ring buffers, while the DMA channels handle bulk transfer endpoints without CPU intervention. Designers only need an external 100 uF bulk capacitor on VBUS to meet USB-OTG inrush requirements.
推荐
Home Automation Gateway
The PIC32MX664F064HT-I/PT acts as a low-cost home-automation gateway connecting Wi-Fi/Zigbee/Z-Wave bridges to Ethernet backhaul. Its 80 MHz MIPS32 core and 32 KB RAM run a TCP/IP stack plus application logic for sensor aggregation or cloud MQTT publishing. The 51 GPIO and multiple UART/SPI/I2C peripherals give designers a wide margin for connecting multiple radios and user-interface buttons/LEDs. Industrial temperature rating ensures reliable operation in attic or garage enclosures.
推荐
M2M / IoT Connected Sensor
For machine-to-machine (M2M) and IoT sensor nodes, the PIC32MX664F064HT-I/PT provides on-chip Ethernet and USB, removing the need for an external MCU+network processor stack. The 10-bit 1 MSPS ADC with up to 16 channels samples analog sensors at high speed, and the four DMA channels stream ADC results into memory without CPU load. Low-cost sensor hubs use this part to publish temperature, pressure, or flow telemetry over Ethernet to a SCADA or cloud server. The 2.3 V to 3.6 V supply range matches battery-backed or PoE-powered designs.
推荐
USB-to-UART / USB-to-SPI Bridge
Designers commonly use the PIC32MX664F064HT-I/PT as a USB-to-UART or USB-to-SPI bridge, taking advantage of its USB device controller and dual UART/SPI peripherals. The 80 MHz core handles USB enumeration and protocol conversion with low latency, and the 64 KB Flash allows on-chip firmware update via USB DFU. Industrial temperature rating and small TQFP footprint simplify integration inside cable assemblies or compact dongles.
推荐
Audio Streaming over Ethernet (Dante/AES67 Lite)
The PIC32MX664F064HT-I/PT can serve as a low-channel-count audio-over-IP endpoint thanks to its Ethernet MAC, DMA channels, and I2S peripheral. The 32 KB SRAM buffers compressed audio packets, while the DMA engines move audio samples between I2S and network memory autonomously. Industrial-grade temperature and deterministic interrupt response make this part suitable for fixed-install audio nodes.
推荐
Industrial HMI / Control Panel
For human-machine interface (HMI) panels and operator-control displays, the PIC32MX664F064HT-I/PT drives character or graphical LCDs via its parallel master port (PMP) and reads keypads through GPIO. The Ethernet MAC enables remote HMI configuration and SCADA connectivity, while the USB-OTG port supports firmware updates from a service laptop. Designers appreciate the 51 GPIO, five 16-bit timers, and 10-bit ADC for backlight control, buzzer drive, and analog sensor readout.
推荐
推荐产品汇总
工程参考数据： PIC32MX664F064HT-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 | PIC32MX664F064H-I/PT | PIC32MX664F064HT-V/PT | PIC32MX564F064HT-I/PT | PIC32MX664F064LT-I/PT | PIC32MX675F256HT-I/PT | PIC32MX795F512HT-I/PT |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same |
| Core / Max Frequency | MIPS32 M4K / 80 MHz | MIPS32 M4K / 80 MHz | MIPS32 M4K / 80 MHz | MIPS32 M4K / 80 MHz | MIPS32 M4K / 80 MHz | MIPS32 M4K / 80 MHz | MIPS32 M4K / 80 MHz |
| Flash | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB | 256 KB (+300%) | 512 KB (+700%) |
| RAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 64 KB (+100%) | 128 KB (+300%) |
| Ethernet MAC | 10/100 Mbit | 10/100 Mbit | 10/100 Mbit | No Ethernet | 10/100 Mbit | 10/100 Mbit | 10/100 Mbit |
| USB | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG |
| Operating Temperature | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +105C (V grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
关键差异点
- Integrated 10/100 Ethernet MAC plus USB-OTG in one MCU （对比 PIC32MX564F064HT-I/PT)
- Industrial -40C to +85C temperature grade in standard part （对比 PIC32MX664F064HT-V/PT)
- Industrial temperature grade with same silicon as commercial parts （对比 PIC32MX675F256HT-I/PT)
设计说明
Estimated: At 80 MHz full operation with Ethernet MAC and USB active, the PIC32MX664F064HT-I/PT typically draws 60-80 mA from the 3.3 V rail. Place a 10 uF bulk capacitor plus 0.1 uF decoupling on each VDD pin pair (pins 12/11, 20/19, 32/31, 40/39, 52/51, 60/59) to suppress switching noise. For USB-OTG host mode, add a 100 uF bulk capacitor on VBUS to meet inrush-current requirements per the USB specification.
Route the 50 ohm Ethernet RMII/MII traces with controlled impedance (typically 50 ohm single-ended to ground) and keep total trace length below 50 mm. Match the 25 MHz reference oscillator trace length to the ETH_CLK pin to within 2 mm of the PHY to avoid duty-cycle distortion. Place the PHY close to the RJ45 jack with the magnetics between them to minimize EMI and common-mode noise.
Do not assume the H (high-pin-count) and L (low-pin-count) variants of the PIC32MX664 family share identical pinout - the L variant reduces pin count by removing dedicated peripherals. When migrating between H and L parts in the same 64-pin TQFP, verify pin function remapping in MPLAB X. Also, the MCLR pin (pin 64) must be pulled up to VDD via a 10 kohm resistor; do not leave it floating.
Separate analog and digital ground planes under the PIC32MX664F064HT-I/PT to prevent ADC noise coupling. Place the ADC reference decoupling capacitor (0.1 uF) as close as possible to the AVSS/AVDD pins if used. For best ADC performance, use the lowest pin-count analog input channel possible and avoid routing high-frequency digital traces adjacent to analog traces.
合规信息
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - this is an industrial-grade part. Halogen-free status not explicitly stated in available data.
