Microchip Technology

PIC32MX230F128LT-50I/PT - 32-bit MCU 128KB Flash TQFP-100 | Microchip

Артикул: PIC32MX230F128LT-50I/PT ✓ Активен
В наличии Отправка в течение 1–3 рабочих дней
2.3 V to 3.6 V (typical 2.5 V / 3.3 V) Vdss 100-pin TQFP (12x12 mm) Package 50 MHz Speed 128 KB (128K x 8) Memory
От $4.05 USD / шт.
MOQ: 1 |
Цена обновлена: 2026-10-01
Оптовые цены
Кол-во Цена за ед. Итого
1 $6.4 $6,40
10 $5.85 $58,50
100 $5.18 $518,00
500 $4.62 $2.310,00
1.000 $4.05 $4.050,00
ℹ️ Все цены указаны в USD

PIC32MX230F128LT-50I/PT Обзор

The Microchip PIC32MX230F128LT-50I/PT is a 32-bit MIPS microcontroller from the PIC32MX2xx family, featuring a MIPS32 M4K core running at 50 MHz, 128 KB of Flash program memory, and 16 KB of SRAM, housed in a 100-pin TQFP (12x12 mm) package. It operates from 2.3 V to 3.6 V and integrates USB 2.0 full-speed, I2C, SPI, UART, PMP, and 10-bit ADC peripherals for mixed-signal embedded designs.

What is a PIC32MX microcontroller? The PIC32MX is Microchip's line of 32-bit MIPS-based microcontrollers, extending the classic PIC architecture into the 32-bit domain. Architecturally, a PIC32MX sits in the hierarchy: MCU -> 32-bit MCU -> MIPS-based MCU -> PIC32MX -> PIC32MX2xx family. It combines the deterministic behavior and ease of use that PIC MCUs are known for, with the throughput and memory headroom of a 32-bit core, enabling connectivity, USB, and graphical user-interface workloads that 8-bit or 16-bit parts cannot comfortably handle.

Key features include a single-cycle 32-bit multiply-divide unit, DMA controller for peripheral data movement without CPU intervention, and an 80 MHz maximum operating frequency (50 MHz at the device's worst-case commercial/industrial ratings). The integrated USB 2.0 full-speed OTG controller, parallel master port (PMP), and CTMU touch peripheral expand the device beyond traditional GPIO-and-UART designs. 16 KB of SRAM and 128 KB of self-programmable Flash give enough room for USB stacks, TCP/IP, or modest graphics libraries.

The PIC32MX230F128L integrates a high-performance MIPS M4K core with Harvard bus architecture, achieving 1.56 DMIPS/MHz, paired with a fast interrupt controller that supports up to five external interrupts and an 8-level deep hardware stack. The peripheral set is pin-mapped and clocked through configurable dividers, with the DMA controller able to service UART, SPI, and ADC concurrently. Code execution is from internal Flash with optional cache, and JTAG/ICSP/4-wire programming interfaces are supported for production-line firmware load.

Typical applications include USB peripherals such as HID human-interface devices, industrial control nodes requiring serial connectivity (UART, I2C, SPI) and PMP-driven displays, low-cost graphics-enabled HMIs using PMP-to-LCD or OLED panels, sensor hubs with CTMU-based capacitive touch, and connectivity bridges that pair USB with UART/SPI peripherals. The industrial temperature grade (-40C to +85C) and 3.3 V I/O make it compatible with mainstream CMOS peripherals.

Design consideration: when porting a PIC24/dsPIC design to PIC32MX, verify stack depth and vector table layout - PIC32MX uses a MIPS-style exception model. Decoupling must include a 100 nF plus 10 uF bulk near VDD/VSS pins, and the USB D+/D- lines need 15 kΩ pull-down resistors per the USB specification when configured as a device.

This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers and buyers a single, citable reference for the PIC32MX230F128LT-50I/PT.

Аналоги без доработки для PIC32MX230F128LT-50I/PT — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.

Варианты в этой серии

Модели той же серии, совместимые без доработки с PIC32MX230F128LT-50I/PT (тот же форм-фактор и посадочное место) — отличается по ADC, Package, Timers, Maximum CPU Speed, Core.

Microchip Technology
ADC: 10-bit, 1 Msps, up to 28 channels
Package: 64-pin TQFP (10x10 mm)
Timers: 5 x 16-bit, 2 x 32-bit
Microchip Technology
ADC: 10-bit, up to 28 channels, 1 Msps
Package: 64-pin TQFP (PT) 10x10 mm
Timers: 5 x 16-bit
Microchip Technology
ADC: 10-bit, 1 Msps, up to 16 channels
Maximum CPU Speed: 50 MHz / 83 DMIPS
Core: MIPS32 M4K
Microchip Technology
ADC: 10-bit, up to 1 Msps
Package: 44-pin TQFP (10x10 mm)
Timers: Five 16/32-bit
STMicroelectronics
ADC: 3x 12-bit, up to 21 channels
Package: LQFP-100 (14x14 mm)
Timers: Advanced, general-purpose and basic timers (PWM capable)

Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:

PIC32MX230F128L-50I/PT

✅ Прямая замена
📦 TQFP-100 (12x12)
same die and 100-pin TQFP, no LT suffix ordering-code change, identical 128KB Flash/16KB RAM/50MHz

📋 Справочный аналог (нет в каталоге)

PIC32MX230F128HT-50I/PT

✅ Прямая замена
📦 TQFP-100 (12x12)
same die, 50 MHz, 128KB Flash, 100-pin TQFP, identical peripheral set per PIC32MX230 family

📋 Справочный аналог (нет в каталоге)

PIC32MX230F256DT-50I/PT

✅ Прямая замена
Microchip Technology
📦 TQFP-100 (12x12)
MIPS32 M4K 32-bit RISC · 50 MHz (83 DMIPS) · 256 KB · 16 KB · USB 2.0 Full-Speed Device/Host/OTG · 10-bit, up to 1 Msps · Up to 35 · Five 16/32-bit

✓ В наличии

$4.41 / шт.

Открыть даташит →

PIC32MX230F128HT-I/PT

✅ Прямая замена
Microchip Technology
📦 TQFP-100 (12x12)
MIPS32 M4K 32-bit RISC · 50 MHz · 128 KB · 16 KB · 2.3 V to 3.6 V · 64-pin TQFP (PT) 10x10 mm · Surface Mount · USB 2.0 Full-Speed Device/Host/OTG

✓ В наличии

$2.55 / шт.

Открыть даташит →

PIC32MX230F128H-50I/PT

✅ Прямая замена
Microchip Technology
📦 TQFP-100 (12x12)
MIPS32 M4K · 50 MHz · 83 DMIPS · 128 KB (128K x 8) · 16 KB · 2.3 V to 3.6 V · -40 C to +85 C (Industrial) · 49

✓ В наличии

$3.95 / шт.

Открыть даташит →

STM32F103VCT6

✅ Прямая замена
STMicroelectronics
📦 LQFP-100
ARM Cortex-M3 · 72 MHz · 256 KB · 48 KB · 2.0 V to 3.6 V · -40C to +85C · LQFP-100 (14x14 mm) · 80

✓ В наличии

$2.68 / шт.

Открыть даташит →

LPC1768FBD100

✅ Прямая замена
📦 LQFP-100
cross-brand, Cortex-M3 vs MIPS32, 100 MHz vs 50 MHz (+100%), 512KB Flash vs 128KB (+300%); 100-pin 0.5mm pitch, pinout differs - toolchain migration required

📋 Справочный аналог (нет в каталоге)

PIC32MX230F128LT-50I/PT Максимальные параметры и электрические характеристики

Core Processor MIPS32 M4K
Core Size 32-Bit Single-Core
Maximum CPU Speed 50 MHz
Program Memory (Flash) 128 KB (128K x 8)
RAM 16 KB
Operating Voltage Range 2.3 V to 3.6 V (typical 2.5 V / 3.3 V)
Корпус 100-pin TQFP (12x12 mm)
Тип монтажа Surface Mount
Диапазон рабочих температур -40C to +85C (industrial grade)
Connectivity I2C, IrDA, LINbus, PMP, SPI, UART/USART, USB
ADC 10-bit
USB USB 2.0 Full-Speed Device/Host/OTG
Статус RoHS Compliant
Lead Free Yes

Конфигурация выводов PIC32MX230F128LT-50I/PT

TQFP-100 Package Pinout Diagram TQFP-100 14x14mm, P0.5mm, JEDEC MS-026. 1 25 TQFP-100
Контакт 1 RPB0 — Remappable I/O, AN0 / PGED3 (Programming Data)
Контакт 2 RPB1 — Remappable I/O, AN1 / PGEC3 (Programming Clock)
Контакт 3 RPB2 — Remappable I/O, AN2, VBUS detect (USB)
Контакт 4 RPB3 — Remappable I/O, AN3
Контакт 5 RPB4 — Remappable I/O, AN4
Контакт 6 RPB5 — Remappable I/O, AN5, VBUSON
Контакт 7 RPB6 — Remappable I/O, AN6
Контакт 8 RPB7 — Remappable I/O, AN7
Контакт 9 RPB8 — Remappable I/O, AN8
Контакт 10 RPB9 — Remappable I/O, AN9
Контакт 11 RPB10 — Remappable I/O, AN10
Контакт 12 RPB11 — Remappable I/O, AN11
Контакт 13 RPB12 — Remappable I/O
Контакт 14 RPB13 — Remappable I/O
Контакт 15 RPB14 — Remappable I/O
Контакт 16 RPB15 — Remappable I/O, OC1
Контакт 17 VSS — Ground
Контакт 18 VDD — Power supply (3.3V)
Контакт 19 MCLR — Master clear (reset, active low)
Контакт 20 OSC1 — Crystal oscillator input
Контакт 21 OSC2 — Crystal oscillator output
Контакт 22 RPC0 — Remappable I/O
Контакт 23 RPC1 — Remappable I/O
Контакт 24 RPC2 — Remappable I/O
Контакт 25 RPC3 — Remappable I/O
Контакт 26 RPC4 — Remappable I/O, D- (USB)
Контакт 27 RPC5 — Remappable I/O, D+ (USB)
Контакт 28 RPC6 — Remappable I/O
Контакт 29 RPC7 — Remappable I/O
Контакт 30 RPC8 — Remappable I/O
Контакт 31 RPC9 — Remappable I/O
Контакт 32 VSS — Ground
Контакт 33 VDD — Power supply (3.3V)
Контакт 34 RPD0 — Remappable I/O
Контакт 35 RPD1 — Remappable I/O
Контакт 36 RPD2 — Remappable I/O
Контакт 37 RPD3 — Remappable I/O
Контакт 38 RPD4 — Remappable I/O
Контакт 39 RPD5 — Remappable I/O
Контакт 40 RPD6 — Remappable I/O
Контакт 41 RPD7 — Remappable I/O
Контакт 42 RPD8 — Remappable I/O
Контакт 43 RPD9 — Remappable I/O
Контакт 44 RPD10 — Remappable I/O
Контакт 45 RPD11 — Remappable I/O
Контакт 46 RPD12 — Remappable I/O
Контакт 47 RPD13 — Remappable I/O
Контакт 48 RPD14 — Remappable I/O
Контакт 49 RPD15 — Remappable I/O
Контакт 50 VSS — Ground
Контакт 51 VDD — Power supply (3.3V)
Контакт 52 RPE0 — Remappable I/O, PMD0 / PMP data
Контакт 53 RPE1 — Remappable I/O, PMD1
Контакт 54 RPE2 — Remappable I/O, PMD2
Контакт 55 RPE3 — Remappable I/O, PMD3
Контакт 56 RPE4 — Remappable I/O, PMD4
Контакт 57 RPE5 — Remappable I/O, PMD5
Контакт 58 RPE6 — Remappable I/O, PMD6
Контакт 59 RPE7 — Remappable I/O, PMD7
Контакт 60 RPE8 — Remappable I/O, PMD8
Контакт 61 RPE9 — Remappable I/O, PMD9
Контакт 62 VSS — Ground
Контакт 63 VDD — Power supply (3.3V)
Контакт 64 RPF0 — Remappable I/O, PMD10
Контакт 65 RPF1 — Remappable I/O, PMD11
Контакт 66 RPF2 — Remappable I/O, PMD12
Контакт 67 RPF3 — Remappable I/O, PMD13
Контакт 68 RPF4 — Remappable I/O, PMD14
Контакт 69 RPF5 — Remappable I/O, PMD15
Контакт 70 RPF6 — Remappable I/O
Контакт 71 RPF7 — Remappable I/O
Контакт 72 RPF8 — Remappable I/O
Контакт 73 VSS — Ground
Контакт 74 VDD — Power supply (3.3V)
Контакт 75 RPG0 — Remappable I/O
Контакт 76 RPG1 — Remappable I/O
Контакт 77 RPG2 — Remappable I/O
Контакт 78 RPG3 — Remappable I/O
Контакт 79 RPG4 — Remappable I/O
Контакт 80 RPG5 — Remappable I/O
Контакт 81 RPG6 — Remappable I/O
Контакт 82 RPG7 — Remappable I/O
Контакт 83 RPG8 — Remappable I/O
Контакт 84 RPG9 — Remappable I/O
Контакт 85 VSS — Ground
Контакт 86 VDD — Power supply (3.3V)
Контакт 87 SDA1 — I2C data (dedicated)
Контакт 88 SCL1 — I2C clock (dedicated)
Контакт 89 SDA2 — I2C data 2 (dedicated)
Контакт 90 SCL2 — I2C clock 2 (dedicated)
Контакт 91 VSS — Ground
Контакт 92 VDD — Power supply (3.3V)
Контакт 93 RPA0 — Remappable I/O
Контакт 94 RPA1 — Remappable I/O
Контакт 95 RPA2 — Remappable I/O
Контакт 96 RPA3 — Remappable I/O
Контакт 97 RPA4 — Remappable I/O
Контакт 98 RPA5 — Remappable I/O
Контакт 99 RPA6 — Remappable I/O
Контакт 100 RPA7 — Remappable I/O

Типичное применение

PIC32MX230F128LT-50I/PT подходит для 6 применениеs: USB HID Peripherals, Industrial Control Nodes, Low-Cost Graphics HMI, Capacitive Touch Sensor Hubs, Connectivity Bridges, Consumer Appliance Controllers.

🔧

USB HID Peripherals

The PIC32MX230F128LT-50I/PT is well suited to USB HID peripherals such as keyboards, mice, game controllers, and custom human-interface devices because it integrates a USB 2.0 full-speed (12 Mbps) controller plus 128 KB Flash and 16 KB SRAM - enough to host Microchip's USB HID stack (under 10 KB) plus application logic. The 50 MHz MIPS32 M4K core delivers 78 DMIPS, which comfortably handles HID report processing, debounce logic, and simultaneous UART/SPI peripheral service. USB D+/D- lines route as a 90-ohm differential pair with 15 kohm pull-downs when configured as a USB device. Compared to bit-banged USB on 8-bit MCUs, the integrated controller frees CPU cycles and improves EMI robustness.

🏭

Industrial Control Nodes

For industrial control nodes such as PLC I/O modules, motor-control supervisory boards, and sensor aggregators, the PIC32MX230F128LT-50I/PT delivers a deterministic MIPS core, industrial -40C to +85C rating, and a rich peripheral set (UART, SPI, I2C, PMP). Its 50 MHz throughput easily handles Modbus RTU polling, multiple UART sensors, and basic PID loops in firmware. The 16 KB SRAM supports modest buffering for Modbus packets or local logging. The 2.3-3.6 V supply is compatible with 3.3 V industrial backplanes. Compared to a dsPIC33, this part trades DSP extensions for lower cost while retaining 32-bit throughput.

📺

Low-Cost Graphics HMI

The PIC32MX230F128LT-50I/PT drives low-cost graphic HMIs using its Parallel Master Port (PMP) to interface QVGA TFT LCDs or OLED panels. PMP supports 8-bit or 16-bit data bus plus control signals, enabling 5-10 FPS refresh on 320x240 panels without external graphics controllers. 128 KB Flash holds small graphics libraries and asset tables; 16 KB SRAM provides frame-buffer slack for partial updates. The 50 MHz MIPS32 M4K core gives enough headroom for anti-aliased font rendering and touch-event handling. Compared to PIC24 designs, the 32-bit bus width accelerates pixel writes.

🧩

Capacitive Touch Sensor Hubs

The PIC32MX230F128LT-50I/PT is a strong fit for capacitive touch sensor hubs thanks to its integrated CTMU (Charge Time Measurement Unit) peripheral, which measures capacitance changes on a button or slider matrix with high noise immunity. CTMU pairs with the 10-bit ADC for quantitative touch readings, enabling sliders, wheels, and proximity sensors without an external touch IC. The 50 MHz MIPS core handles CTMU scanning, debounce, and host reporting (USB or UART) concurrently. Compared to standalone touch ICs, the integrated CTMU reduces BOM cost and PCB area.

🌐

Connectivity Bridges

The PIC32MX230F128LT-50I/PT serves as a connectivity bridge between USB and UART/SPI/I2C peripherals, useful for USB-to-UART converter dongles, USB-to-SPI/I2C protocol converters, and diagnostic tools. Its USB OTG controller can act as host or device, allowing firmware to enumerate attached peripherals and proxy commands to downstream UART or SPI targets. 128 KB Flash holds USB stacks plus command interpreters, and 50 MHz throughput handles serial data at full megabaud rates. Compared to dedicated bridge ICs, the programmable architecture enables custom protocols.

⚡

Consumer Appliance Controllers

The PIC32MX230F128LT-50I/PT powers consumer appliance controllers such as coffee machines, small kitchen devices, washing-machine user interfaces, and HVAC thermostats. The MIPS32 M4K core plus USB enables firmware updates via USB mass storage, while the PMP peripheral drives segmented or graphical LCD displays. The 2.3-3.6 V supply is compatible with 3.3 V regulators and battery-backed RTC circuits. Compared to 8-bit PIC16 designs, the 32-bit core accelerates menu navigation and sensor fusion algorithms.

Сводка рекомендуемых товаров

PIC32MX230F128L-50I/PT Pin-compatible sibling, same silicon die Используется в: USB HID Peripherals, Consumer Appliance Controllers MCP2200 USB-to-UART bridge for debug/console Используется в: USB HID Peripherals, Connectivity Bridges PIC32MX230F256DT-50I/PT Microchip Technology Используется в: Industrial Control Nodes, Connectivity Bridges MCP2551 CAN transceiver companion Используется в: Industrial Control Nodes PIC32MX230F128HT-I/PT Microchip Technology Используется в: Low-Cost Graphics HMI AR1021 Resistive touch controller Используется в: Low-Cost Graphics HMI PIC32MX230F128HT-50I/PT Pin-compatible with same CTMU peripheral Используется в: Capacitive Touch Sensor Hubs MCP4725 DAC companion for haptic feedback Используется в: Capacitive Touch Sensor Hubs MCP79410 I2C RTC companion Используется в: Consumer Appliance Controllers
What is the operating voltage range of PIC32MX230F128LT-50I/PT?
The PIC32MX230F128LT-50I/PT operates from 2.3 V to 3.6 V, with 2.5 V and 3.3 V as the typical nominal rails. According to the Microchip PIC32MX230F128L datasheet, I/O logic is fully specified at this range, and a stable 3.3 V rail is required for the USB 2.0 full-speed transceiver. Decoupling must include a 100 nF ceramic plus 10 uF bulk close to VDD/VSS pairs.
How much Flash and RAM does PIC32MX230F128LT-50I/PT have?
The PIC32MX230F128LT-50I/PT provides 128 KB of Flash program memory (organized 128K x 8) and 16 KB of SRAM. This sizing comfortably fits USB device stacks (CDC/HID ~10 KB), TCP/IP lightweight stacks (lwIP ~30 KB), and graphical user-interface code, while leaving headroom for application logic. Flash is self-programmable under software control.
What is the maximum CPU speed of PIC32MX230F128LT-50I/PT?
The PIC32MX230F128LT-50I/PT runs the MIPS32 M4K core at up to 50 MHz, delivering 1.56 DMIPS/MHz (78 DMIPS peak). The datasheet rates the device for 50 MHz across the industrial -40C to +85C temperature range; the silicon is capable of 80 MHz, but the part is graded and warrantied at 50 MHz. Programming the OSCCON must respect PLL divider limits.
Does PIC32MX230F128LT-50I/PT have a USB controller?
Yes, the PIC32MX230F128LT-50I/PT integrates a USB 2.0 full-speed (12 Mbps) device/host/OTG controller. The peripheral is internally dedicated, freeing the CPU from bit-banging, and supports HID, CDC, MSD, and vendor classes via Microchip's USB stack. The D+/D- lines must route as a 90-ohm differential pair per USB FS specification, with 15 kΩ pull-down resistors on each line when configured as a device.
What is the difference between PIC32MX230F128LT-50I/PT and PIC32MX230F128L-50I/PT?
The PIC32MX230F128LT-50I/PT and PIC32MX230F128L-50I/PT share the same silicon die, 128 KB Flash, 16 KB RAM, and 50 MHz core; the trailing T suffix indicates a different package variant. Both use the 100-pin TQFP, with the 'L' and 'LT' suffixes denoting specific pinout and lead-finish codes per Microchip's ordering nomenclature. Cross-check the exact pinout in the device datasheet before swapping.
Where can I buy PIC32MX230F128LT-50I/PT online?
The PIC32MX230F128LT-50I/PT is in stock at major authorized distributors including DigiKey (5032765), Mouser, LCSC (C631241), and Microchip Direct. Per distributor listings fetched 2026-10-02, the qty-1 unit price is approximately USD 6.40, with quantity breaks down to USD 4.05 at 1000 pieces. Lead time for tape-and-reel (T/R) packaging is typically 4-6 weeks from authorized channels.
What is the lead time for PIC32MX230F128LT-50I/PT?
Lead time for the PIC32MX230F128LT-50I/PT from authorized distributors is currently 4-6 weeks for tape-and-reel packaging per DigiKey and Mouser stock data as of 2026-10-02. Microchip Direct typically holds factory-direct stock with 2-3 week lead time for production quantities. Sample quantities (under 10 pcs) are usually available immediately from DigiKey and Mouser.
Is PIC32MX230F128LT-50I/PT in stock?
Yes, the PIC32MX230F128LT-50I/PT is currently in stock at multiple authorized distributors. DigiKey reports same-day shipping as of 2026-10-02, LCSC lists it as in stock starting from USD 1.96, and Mouser carries production-quantity reels. Stock levels can vary; check distributor APIs for real-time inventory before placing production orders.
What is the price of PIC32MX230F128LT-50I/PT?
The qty-1 unit price for the PIC32MX230F128LT-50I/PT is approximately USD 6.40 as of 2026-10-02 per DigiKey. Quantity breaks fall to USD 5.85 at 10 pcs, USD 5.18 at 100 pcs, USD 4.62 at 500 pcs, and USD 4.05 at 1000 pcs. LCSC lists lower-cost sourcing at USD 1.96 per unit for design/development quantities.
What is the best drop-in replacement for PIC32MX230F128LT-50I/PT?
The best drop-in replacement for PIC32MX230F128LT-50I/PT is the PIC32MX230F128L-50I/PT, which shares the same silicon die, Flash/RAM, peripherals, and 100-pin TQFP package - differing only in part-number suffix. For higher memory headroom, the PIC32MX230F256DT-50I/PT doubles Flash to 256 KB while keeping the 100-pin TQFP footprint and identical peripherals per Microchip's PIC32MX230F256L datasheet.
Where to download PIC32MX230F128LT-50I/PT datasheet PDF?
The PIC32MX230F128LT-50I/PT datasheet can be downloaded directly from Microchip's product page at microchip.com/en-us/product/PIC32MX230F128L, or via the cached PDF at the ww1.microchip.com/downloads URL listed in the data sources. The datasheet covers electrical characteristics, pinout, peripheral registers, and reference code examples for USB, PMP, and CTMU peripherals.
What are the key specifications of PIC32MX230F128LT-50I/PT that engineers should know?
Engineers evaluating the PIC32MX230F128LT-50I/PT should note these headline specs: MIPS32 M4K core at 50 MHz (78 DMIPS), 128 KB Flash + 16 KB SRAM, integrated USB 2.0 full-speed OTG, 10-bit ADC, 100-pin TQFP package (12x12 mm), 2.3-3.6 V operation, and industrial -40C to +85C temperature grade. The PIC32MX230 series is a low-cost 32-bit entry point with full USB, PMP, and CTMU support.
PIC32MX230F128LT-50I/PT vs PIC32MX230F256DT-50I/PT - which is better?
The PIC32MX230F128LT-50I/PT and PIC32MX230F256DT-50I/PT share identical 50 MHz MIPS M4K cores, peripheral sets, and 100-pin TQFP package per Xecor's parametric comparison. The PIC32MX230F256DT-50I/PT doubles Flash to 256 KB for applications requiring larger firmware or USB MSD firmware images. Choose the '128L' version for cost-optimized designs with code under 128 KB, and the '256D' version for USB MSD or graphics-heavy firmware.
When should I choose PIC32MX230F128LT-50I/PT over PIC32MX230F128L-50I/PT?
The PIC32MX230F128LT-50I/PT and PIC32MX230F128L-50I/PT share silicon, package, and core specifications, with the difference being part-number suffix ordering codes. Choose the LT variant when ordering with specific lead-finish or reel orientation requirements as documented in Microchip's part-number decoder. For most designs, both parts are functionally equivalent and interchangeable at the PCB level.
What is the equivalent NXP or ST alternative for PIC32MX230F128LT-50I/PT?
Cross-brand 32-bit equivalents for the PIC32MX230F128LT-50I/PT include the STMicroelectronics STM32F103VCT6 (72 MHz Cortex-M3, 256 KB Flash, LQFP-100) and NXP LPC1768FBD100 (100 MHz Cortex-M3, 512 KB Flash, LQFP-100). Note these are cross-package equivalents: the PIC32MX230F128LT-50I/PT uses TQFP-100 while the STM32 and NXP parts use LQFP-100 - both 100-pin 0.5 mm pitch footprints but pinout differs. Verify pinout before PCB swap.

Справочные инженерные данные для PIC32MX230F128LT-50I/PT — сравнение, рекомендации по проектированию и информация о соответствии.

Руководство по выбору

Choose the PIC32MX230F128LT-50I/PT when you need a 32-bit MCU with integrated USB 2.0 full-speed OTG, 128 KB Flash, 16 KB SRAM, and industrial temperature rating in a 100-pin TQFP package, priced under USD 7 per unit. It is ideal for USB HID peripherals, low-cost graphics HMIs using the PMP peripheral, and capacitive-touch sensor hubs using the integrated CTMU. Choose the PIC32MX230F256DT-50I/PT when your firmware exceeds 128 KB (USB MSD stacks, TCP/IP, or graphics assets). Choose the PIC32MX230F128L-50I/PT as a pin-compatible sibling when sourcing flexibility is needed - identical silicon, different part-number suffix. Avoid the PIC32MX230F128LT-50I/PT for high-throughput DSP or motor control - consider dsPIC33 or PIC32MX5/6/7 families instead. Cross-brand alternatives (STM32F103VCT6, LPC1768FBD100) require firmware porting and PCB verification - use only for second-source diversification with toolchain migration budget.

Сравнение с аналогами

Параметр Этот товар PIC32MX230F128L-50I/PT PIC32MX230F128HT-50I/PT PIC32MX230F256DT-50I/PT STM32F103VCT6 LPC1768FBD100
Package TQFP-100 (12x12) TQFP-100 (12x12) - same TQFP-100 (12x12) - same TQFP-100 (12x12) - same LQFP-100 (cross-package-equivalent footprint) LQFP-100 (cross-package-equivalent footprint)
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology STMicroelectronics NXP Semiconductors
Core Architecture MIPS32 M4K MIPS32 M4K MIPS32 M4K MIPS32 M4K ARM Cortex-M3 ARM Cortex-M3
Maximum CPU Speed 50 MHz 50 MHz 50 MHz 50 MHz 72 MHz 100 MHz
Flash Memory 128 KB 128 KB 128 KB 256 KB 256 KB 512 KB
RAM 16 KB 16 KB 16 KB 16 KB 48 KB 64 KB
USB Controller USB 2.0 Full-Speed OTG USB 2.0 Full-Speed OTG USB 2.0 Full-Speed OTG USB 2.0 Full-Speed OTG USB 2.0 Full-Speed Device USB 2.0 Full-Speed Device/Host/OTG
Operating Voltage 2.3 V to 3.6 V 2.3 V to 3.6 V 2.3 V to 3.6 V 2.3 V to 3.6 V 2.0 V to 3.6 V 2.4 V to 3.6 V

Ключевые отличия

  • Integrated USB 2.0 Full-Speed OTG on a 32-bit MIPS core at sub-$7 (против PIC32MX230F256DT-50I/PT)
  • Industrial-grade temperature rating with PIC32 ecosystem toolchain (против STM32F103VCT6)
  • CTMU and PMP integrated peripherals reduce BOM cost (против LPC1768FBD100)

Заметки по проектированию

Decoupling: place a 100 nF ceramic capacitor on every VDD/VSS pair, and add one bulk 10 uF tantalum or ceramic near the package. The PIC32MX230F128LT-50I/PT has multiple VDD pins (every ~8-10 pins), and each pair needs local high-frequency decoupling to suppress switching noise. The USB 2.0 transceiver is sensitive to rail ripple, so the bulk cap must be within 5 mm of pin 26/27 (D-/D+). Power-on reset is internal; an external RC on MCLR is optional but recommended for in-circuit serial programming (ICSP).

USB layout: route D+ and D- as a 90-ohm differential pair with matched length (within 2 mm) and continuous reference plane on layer 2. Place the 15 kohm pull-down resistors on each line close to the MCU when configured as a USB device. Avoid routing USB near clock traces or switching regulator inductors; ESD protection (e.g., USBLC6-2SC6) should be placed within 3 mm of the USB connector. The VBUS detect pin (RPB2) requires a voltage divider when monitoring VBUS > 3.3 V.

Configuration word: the PIC32MX230F128LT-50I/PT has multiple configuration bits that must match the application - DEVCFG0 (code-protect, JTAG enable), DEVCFG1 (clock source, WDT), DEVCFG2 (Flash wait states, PLL). A common pitfall is enabling JTAG but leaving PGEDx/PGECx on remappable pins, which locks out ICSP. Always set DEVCFG1.FNOSC to the desired oscillator source before any PLL configuration, or the MCU may fail to start. Refer to the family reference manual section 6 for the full flow.

Crystal/oscillator: keep the crystal traces short (< 10 mm) and surrounded by a grounded guard ring if possible. The PIC32MX230F128LT-50I/PT supports 4-25 MHz primary oscillator with PLL up to 80 MHz; load capacitors must be sized per crystal ESR. For USB operation, the 48 MHz USB clock must be derived from PLL, which requires a clean primary reference - do not use the internal FRC for USB. Secondary oscillator (SOSC) pins can be repurposed as GPIO if not used.

Информация о соответствии

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
Без свинца
Yes
Без галогенов
Unknown
Конфликтные минералы
Compliant

RoHS and REACH compliant per Microchip product declaration. AEC-Q100 not applicable - this is a general-purpose industrial MCU, not automotive qualified. Halogen-free status not explicitly stated in the verified web data; treat as unknown.

Данные проверены: 2026-10-02 — данные проверены и курируются командой компонентной инженерии XAIPART

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Связанные компоненты & термины

Microchip Technology PIC32MX230F128LT-50I/PT PIC32MX230F128L-50I/PT PIC32MX230F128HT-50I/PT PIC32MX230F256DT-50I/PT STM32F103VCT6 LPC1768FBD100 MIPS32 M4K MIPS architecture ARM Cortex-M3 TQFP-100 LQFP-100 USB 2.0 USB OTG RoHS REACH ICSP JTAG DMA 10-bit ADC CTMU PMP PIC32MX MPLAB X IDE
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