PIC16HV753-I/ML
PIC16HV753-I/ML - 8-bit MCU 20MHz 3.5KB Flash 16-QFN | Microchip
The Microchip Technology PIC16HV753-I/ML is an 8-bit RISC PIC16 microcontroller operating up to 20 MHz, integrating 3.5 KB (2K x 14) of self-read/write FLASH program memory and 128 bytes of RAM in a 16-pin QFN (4x4 mm) package. The "HV" family variant includes a built-in shunt (High-Voltage) regulator that allows direct operation from a high-voltage supply up to 15 V without an external LDO, while the standard PIC16F753 variant requires a regulated 2.0-5.5 V supply. The part is qualified over the industrial -40C to +85C temperature range.
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, data RAM, and on-chip peripherals such as timers, ADC, communication interfaces, and GPIO. The PIC16 mid-range core is one of Microchip's classic 8-bit architectures using a 14-bit instruction word optimized for deterministic interrupt response and low-power operation. The PIC16HV753 sits inside the broader hierarchy: 8-bit MCU -> microcontroller -> embedded IC -> semiconductor device, and is the PIC family member optimized for high-voltage direct-supply applications like LED lighting, battery chargers, and motor control where eliminating an external regulator saves cost and board area.
Key features include an 8-channel 10-bit ADC, a 9-bit DAC, two high-speed analog comparators (50 ns response), an op-amp module, one Capture/Compare/PWM (CCP) peripheral, and a 32 kHz-to-20 MHz internal oscillator with 8 MHz factory calibration. The device also provides enhanced PWM, multiple timers, a watchdog timer, an on-chip voltage reference, and in-circuit serial programming (ICSP) via two pins. High-voltage variants integrate a 15 V shunt regulator on the supply pin so the chip can be powered directly from 9 V or 12 V rails.
Architecturally, the PIC16HV753 uses a Harvard RISC core with separate program and data buses, allowing instruction fetch and operand access in a single cycle. The high-voltage analog front-end is decoupled from the digital core through an internal regulator that generates the 2.0-5.5 V supply used by the core logic, giving designers a single-chip solution for direct-supply, mixed-signal embedded control.
Typical applications include AC mains-powered LED lighting drivers, switch-mode power supply (SMPS) primary-side control, sealed lead-acid battery chargers, 12 V fan/motor controllers, and industrial sensor signal conditioning where the on-chip op-amp, comparators, and ADC provide a complete analog front-end without external analog ICs.
When designing with this device, ensure the high-voltage supply current does not exceed the shunt regulator's load capability (typically a few mA) and place a 0.1 uF + 10 uF decoupling network close to the VDD pin. For in-circuit programming, dedicate the ICSPCLK/ICSPDAT pins and protect them from contention with application circuitry.
This page synthesizes distributor pricing, drop-in PIC16 family alternatives, application reference designs, and practical design notes not collected in the manufacturer datasheet alone.
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