PIC32MX340F128LT-80I/BG - 80MHz MIPS32 128KB Flash MCU | Microchip
MPN： PIC32MX340F128LT-80I/BG ✓ 啟用中PIC32MX340F128LT-80I/BG 概覽
A 32-bit microcontroller is a single-chip computer that integrates a CPU core, non-volatile program memory, volatile data memory, and configurable I/O peripherals on a single die. PIC32 devices bridge the gap between 8/16-bit PIC microcontrollers and higher-end Cortex-M parts, offering deterministic MIPS performance with familiar MPLAB toolchains. PIC32MX parts sit in the hierarchy: microcontroller -> 32-bit MCU -> MIPS32 architecture -> PIC32 family -> PIC32MX3XX/4XX series, supporting low-to-mid complexity embedded designs with industrial temperature ranges.
Key features include 80 MHz core clock (50 MHz for peripherals), 128 KB Flash and 32 KB RAM, USB 2.0 full-speed On-The-Go with integrated transceiver, 16-channel 10-bit ADC with 1 Msps conversion, and a Parallel Master Port (PMP) for graphics or external memory interfacing. The part supports an operating voltage range of 2.3V to 3.6V and industrial-grade temperature range of -40C to +85C. The 'L' suffix denotes the 121-ball TFBGA package, and 'T' designates tape-and-reel packaging.
The MIPS M4K core delivers 1.56 DMIPS/MHz and executes most instructions in a single cycle, enabling efficient C code execution via MPLAB XC32 compilers. The integrated USB OTG controller eliminates external PHY chips for embedded host or device applications, while the PMP module drives LCD panels or external bus peripherals without additional glue logic. An 8-channel DMA engine offloads data movement from the core, freeing CPU bandwidth for application logic.
Typical applications include USB peripherals (HID, CDC, mass storage), industrial control panels, low-cost graphical HMI with PMP-driven LCDs, sensor data acquisition nodes, and consumer audio devices. Its industrial temperature range and proven PIC32 ecosystem make it well-suited to long-life-cycle embedded products.
Design tip: place four-layer PCB with continuous GND pour beneath the TFBGA ball grid to minimize thermal resistance and improve signal integrity on high-speed USB traces. Use 0.1 uF decoupling caps adjacent to each VDDCORE/VUSB pair.
This page synthesizes distributor pricing, drop-in package alternatives, and practical design guidance not collected in the manufacturer datasheet alone.
直接替換替代品，適用於 PIC32MX340F128LT-80I/BG — 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： PIC32MX340F128LT-80I/BG （相同外形與佔位） — 差異在於 ADC, Operating Temperature, Package, Core Architecture, Program Memory (Flash).
PIC32MX340F128L-80I/BG
✅ 直接替換聯絡詢價
查看資料表 →PIC32MX320F128L-80V/BG
✅ 直接替換聯絡詢價
查看資料表 →PIC32MX340F128LT-80I/BG 最大額定值與電氣特性
| Core Architecture | MIPS32 M4K |
| Core Bit Width | 32-bit |
| Maximum Core Frequency | 80 MHz |
| Program Memory (Flash) | 128 KB (128K x 8) |
| Data SRAM | 32 KB |
| General-Purpose I/O Pins | 53 |
| 封裝 | 121-ball TFBGA (BG), 10x10 mm |
| 安裝類型 | Surface Mount |
| 供應電壓 | 2.3 V to 3.6 V |
| 工作溫度 | -40C to +85C (Industrial) |
| ADC | 10-bit, 16-channel, 1 Msps |
| USB | USB 2.0 Full-Speed OTG with integrated transceiver |
| Communication Interfaces | UART, SPI, I2C, PMP |
| Timers | Five 16-bit timers |
| DMA Channels | 8 |
| Oscillator | Internal 8 MHz + PLL |
| RoHS 狀態 | Compliant |
PIC32MX340F128LT-80I/BG 121-ball tfbga (bg), 10x10 mm 腳位配置指南
PIC32MX340F128LT-80I/BG（121-ball tfbga (bg), 10x10 mm 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： PIC32MX340F128LT-80I/BG.
請參閱 資料表 以查看完整腳位配置。
典型應用
PIC32MX340F128LT-80I/BG 適用於 6 應用s: USB HID / CDC Peripheral, Industrial Control Panel, Graphical HMI with PMP-LCD, Sensor Data Acquisition Node, Consumer Audio Device, USB Host / Embedded Mass Storage.
USB HID / CDC Peripheral
The PIC32MX340F128LT-80I/BG's integrated USB 2.0 full-speed OTG controller with on-chip transceiver makes it ideal for USB peripherals such as HID keyboards, CDC virtual COM ports, and mass-storage devices. With 128 KB Flash and 32 KB SRAM it comfortably fits the Microchip USB stack, CDC class driver, and application logic. Engineers benefit from eliminating the external PHY and reducing BOM cost. Place a 90.9 ohm resistor and ESD array on the D+/D- lines per datasheet guidance; add 1 uF decoupling near VUSB for hot-plug robustness.
推薦
Industrial Control Panel
The PIC32MX340F128LT-80I/BG's -40C to +85C industrial temperature range and 53 GPIO pins suit industrial control panels that drive relays, optocouplers, and discrete indicators. The 80 MHz MIPS core deterministically executes control loops while the 16-channel 10-bit ADC reads sensor inputs at 1 Msps. Its mature PIC32 ecosystem simplifies IEC 61131-style logic implementation. Use opto-isolated I/O expansion with external latch registers when GPIO count is exceeded; verify Creepage/clearance per IEC 61010 on mains-coupled outputs.
推薦
Graphical HMI with PMP-LCD
The PIC32MX340F128LT-80I/BG's Parallel Master Port (PMP) directly drives small graphical TFT or STN LCD panels without external controller ICs. 32 KB RAM holds frame buffers for QVGA-resolution displays, and 128 KB Flash fits graphics libraries and UI code. The 80 MHz core maintains 30+ FPS UI refresh rates. Add a small LDO for the panel backlight and route PMP data lines as length-matched groups; consider adding a logic-level translator if the LCD requires 5V interface logic.
推薦
Sensor Data Acquisition Node
The PIC32MX340F128LT-80I/BG's 8-channel DMA engine, 16-channel 10-bit ADC at 1 Msps, and ample GPIO suit sensor data acquisition in industrial IoT nodes. The 32 KB SRAM buffers bursts of ADC samples before the core uploads via UART, SPI, or I2C. Its 80 MHz MIPS core handles lightweight DSP such as moving-average filters in real time. Add a TVS diode and common-mode choke on external sensor lines; consider an RTCC crystal if timestamping samples for logged data sets.
推薦
Consumer Audio Device
The PIC32MX340F128LT-80I/BG's I2S/AC97 interfaces and 80 MHz CPU bandwidth allow USB digital audio streaming with on-the-fly volume and EQ processing. 32 KB RAM holds small audio buffers; 128 KB Flash stores the USB Audio class stack and DSP routines. Industrial temperature tolerance supports automotive audio accessories and home audio peripherals alike. Use a low-jitter MCLK source for I2S to minimize click artifacts; add a ferrite bead on analog supply lines feeding the DAC.
推薦
USB Host / Embedded Mass Storage
The PIC32MX340F128LT-80I/BG's USB OTG controller can operate as a host, enabling direct read/write of USB flash drives and SD card readers without a PC. Combined with Microchip's MDD library, it logs or retrieves configuration data in field deployments. Industrial temperature ensures operation in cabinets or outdoor enclosures. Provide a 5V boost regulator for VBUS when supplying downstream USB devices; add ESD protection on D+/D- to comply with IEC 61000-4-2 air-discharge tests.
推薦
推薦產品摘要
工程參考資料，適用於 PIC32MX340F128LT-80I/BG — 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 | PIC32MX340F128L-80I/BG | PIC32MX320F128L-80V/BG | PIC32MX330F064H-50I/MR |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 121-ball TFBGA (10x10 mm) | 121-ball TFBGA (10x10 mm) - same | 121-ball TFBGA (10x10 mm) - same | 64-pin QFN (8x8 mm) - different footprint |
| Core | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit |
| Max Core Frequency | 80 MHz | 80 MHz | 80 MHz | 50 MHz |
| Flash | 128 KB | 128 KB | 128 KB | 64 KB |
| RAM | 32 KB | 32 KB | 32 KB | 16 KB |
| USB | USB 2.0 FS OTG (integrated) | USB 2.0 FS OTG | No USB | USB 2.0 FS OTG |
| Temperature Range | -40C to +85C (Industrial) | -40C to +85C | 0C to +70C (Commercial) | -40C to +85C |
| GPIO | 53 | 53 | 53 | 53 |
主要差異化特點
- Industrial temperature range with same package as commercial variant (對比PIC32MX340F128LT-80V/BG)
- Drop-in tray-packaging alternative with identical silicon (對比PIC32MX340F128L-80I/BG)
- Built-in USB OTG vs PIC32MX320 family which lacks USB (對比PIC32MX320F128L-80V/BG)
設計說明
Estimated: At 80 MHz core clock, the PIC32MX340F128LT-80I/BG typically dissipates approximately 70-90 mW depending on peripheral activity. The 121-ball TFBGA package thermal resistance is approximately 25 C/W (theta_JA) on a standard 4-layer JEDEC test board. Sustained operation at industrial +85C ambient with high peripheral load requires a thermal pad connected to inner GND plane and adequate copper pour. Verify with a thermocouple measurement on first prototypes - datasheet absolute maximum junction is +150C.
Route USB D+/D- traces as a 90-ohm differential pair per USB 2.0 specification. Place a 90.9-ohm (+/-1%) series resistor between the on-chip transceiver and the connector, with a 0.1 uF decoupling cap adjacent to VUSB. Keep the TFBGA BGA pattern's escape routing on inner layers with via-in-pad or micro-vias for clean signal paths. Provide four-layer PCB with continuous GND pour beneath the BGA ball grid to minimize ground impedance and EMI.
Do not omit decoupling capacitors on each VDDCORE/VUSB pin pair - place 0.1 uF X7R ceramic caps adjacent to each supply pin. The MPLAB debugger programming pins (MCLR, PGECx/PGEDx) require proper pull-up on MCLR; floating MCLR prevents code execution. Ensure VUSB is connected even when USB is unused - the USB PHY requires biasing. Industrial temperature grade ('I') parts must be ordered for designs operating outside commercial 0-70C range; the V-grade variants cannot replace I-grade parts.
合規資訊
RoHS and lead-free compliant per Microchip product page. Not AEC-Q100 qualified - for automotive designs evaluate dsPIC33 or PIC32MX automotive variants. Halogen-free status not explicitly stated in available data.
