NXP LPC832M101FDH20FP — ARM Cortex-M0+ 30MHz MCU, 16KB Flash, TSSOP-20
NXP LPC832M101FDH20FP, LPC83x series, ARM Cortex-M0+ 30MHz 32-bit MCU with 16KB Flash, 4KB RAM, 16 GPIO, 5×12-bit ADC, I²C/SPI/UART, 1.8–3.6V supply, -40°C to 85°C operating temperature, 20-TSSOP package, tube.
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Specifications
| Parameter | Value |
|---|---|
| Series | LPC83x |
| Mounting type | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.8V ~ 3.6V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 30MHz |
| Package | Tube |
| RAM size | 4K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Connectivity | I²C, SPI, UART/USART |
| Number of i (O) | 16 |
| Core processor | ARM® Cortex®-M0+ |
| Case | 20-TSSOP (0.173\", 4.40mm Width) |
| Data converters | A/D 5x12b |
| Program memory size | 16KB (16K x 8) |
Frequently asked questions
Does the internal oscillator support Modbus-RTU baud accuracy at 115200 baud without an external crystal?
The oscillator type is Internal, meaning the part is designed for crystal-less operation. The ±1.5% accuracy requirement for standard Modbus-RTU at 115200 baud is a datasheet-specified parameter not listed in this ledger — verify against the NXP LPC832 datasheet before designing out the crystal.
How many of the 16 GPIO are available after allocating pins for I²C, SPI, and UART?
Five 12-bit ADC channels share pins with the 16 GPIO. After routing I²C/SPI and UART on dedicated pins, two to four ADC-capable pins typically remain free for analog sensor inputs — tight for designs needing simultaneous PWM outputs and analog sensing on the same pin-mux budget.