PIC24EP128GP202-H/MM
PIC24EP128GP202-H/MM - 16-bit 70 MIPS MCU, 128KB Flash | Microchip
The Microchip Technology PIC24EP128GP202-H/MM is a 16-bit microcontroller and digital signal controller from the PIC24E general-purpose family, featuring a high-performance 70 MIPS core with 128 KB of Flash program memory and 16 KB of SRAM, packaged in a 28-pin QFN (MM). The part carries an extended-temperature "H" suffix indicating an operating range of -40C to +150C, making it suitable for harsh-environment and automotive-grade applications. The -H/MM variant is specifically graded for high-temperature operation beyond the standard industrial range.
What is a 16-bit MCU? A 16-bit microcontroller is an embedded computing device built around a 16-bit data path and register file, sitting in the hierarchy between 8-bit microcontrollers (e.g., PIC16, PIC18, ATmega) and 32-bit microcontrollers (e.g., ARM Cortex-M). 16-bit MCUs like the PIC24E family deliver deterministic real-time control, on-chip DSP capability, and richer peripherals than 8-bit parts while remaining simpler and lower-power than 32-bit Cortex-M devices. They are widely deployed in motor control, power conversion, industrial sensing, and audio processing where the combination of DSP throughput and deterministic interrupt latency is essential.
Key features of the PIC24EP128GP202 include a 70 MIPS CPU core, dual operational amplifiers on-chip, a high-speed 10/12-bit ADC with up to 1.1 Msps sampling, Charge Time Measurement Unit (CTMU) for capacitive touch and precise time measurement, and the Peripheral Trigger Generator (PTG) for hardware-driven peripheral sequencing. The device also integrates high-speed PWM, multiple UART/SPI/I2C interfaces, and a configurable oscillator block. Together, these peripherals enable single-chip implementations of advanced motor-control, lighting, and analog-signal-conditioning designs.
Architecturally, the PIC24E core uses a modified Harvard structure with separate program and data buses, a 16 x 16-bit working register array, and a hardware DSP engine for single-cycle MAC operations. The on-chip op-amps and 1 Msps ADC allow direct conditioning and digitization of analog signals without external analog front-end ICs, reducing BOM cost and PCB area. The 70 MIPS throughput gives 14.3 ns instruction-cycle time, supporting fast closed-loop control loops at PWM frequencies above 100 kHz.
Typical applications include industrial motor control (BLDC, PMSM, and stepper drives), digital power conversion (AC-DC, DC-DC, and PFC stages), automotive sensor interfaces, LED lighting controllers, solar inverters, and battery management systems. The extended -40C to +150C operating range of the -H/MM grade makes it particularly suited for under-hood automotive electronics, outdoor industrial equipment, and any application where the ambient temperature exceeds standard commercial or industrial limits.
When designing with this MCU, allocate sufficient decoupling capacitance near the VDD/VSS pairs (typically 100 nF plus bulk) and ensure the PCB layout keeps analog and digital ground returns separated before joining at a single point near the device. For high-temperature operation, derate output drive strength and verify oscillator startup behavior at the cold-side extreme.
This page synthesizes distributor pricing, application-specific design notes, and cross-references against the wider PIC24E family - information not found in the manufacturer datasheet alone.
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