PIC12HV752-I/MF - 8-bit MCU 1.75KB Flash 20MHz DFN-8 | Microchip
MPN: PIC12HV752-I/MF ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.42 | $1.42 |
| 10 | $1.27 | $12.70 |
| 100 | $1.08 | $108.00 |
| 500 | $0.92 | $460.00 |
| 1,000 | $0.79 | $790.00 |
PIC12HV752-I/MF Overview
An 8-bit microcontroller (MCU) is a small, self-contained computer-on-a-chip built around an 8-bit data path, integrating CPU, RAM, non-volatile program memory, and peripherals in a single package. Within Microchip's taxonomy, the PIC12HV752 belongs to the mid-range PIC® 12F family - a flash-based CMOS line optimized for ultra-low pin-count applications and positioned hierarchically under 8-bit MCU -> microcontroller -> embedded controller -> semiconductor device.
Key differentiators include two 20 ns high-speed analog comparators ideal for peak current-mode control in switch-mode power supplies, one Capture-Compare-PWM (CCP) module, 4 channels of 10-bit ADC, and an internal 8 MHz oscillator that eliminates external timing components. The 'HV' in the part number denotes the integrated high-voltage shunt regulator that simplifies supplies from AC-DC adapters or 12 V buses.
Typical applications include primary-side regulation in isolated AC-DC converters, LED driver control loops, battery charging circuits, and low-cost general-purpose logic replacement. The DFN-8 (3x3) package provides a compact footprint suitable for space-constrained designs such as IoT edge sensors and consumer electronics.
When designing with this device, ensure the high-voltage supply path includes a current-limiting series resistor sized for worst-case input voltage and minimum load. The exposed thermal pad must be soldered to a copper pour for proper thermal dissipation. MPLAB X IDE with XC8 compiler is the recommended toolchain for firmware development.
Drop-in alternatives for PIC12HV752-I/MF — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC12HV752-I/MF (same form factor and footprint) — differing in ADC, Analog Comparators, Internal Oscillator, Operating Temperature, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC12F752-I/MF
✅ Drop-In✓ In Stock
$0.67 / Unit
View Datasheet →PIC12HV752-E/MF
✅ Drop-In✓ In Stock
$0.48 / Unit
View Datasheet →PIC12HV615-I/MD
✅ Drop-In📋 Reference alternative (not in catalog)
PIC12F1840-I/MF
✅ Drop-In📋 Reference alternative (not in catalog)
PIC12F1822-I/MF
✅ Drop-In📋 Reference alternative (not in catalog)
PIC12F615-I/MF
✅ Drop-In📋 Reference alternative (not in catalog)
PIC12HV752-I/MF Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC mid-range 8-bit RISC |
| Program Memory (Flash) | 1.75 KB (1K x 14) |
| Data RAM | 64 bytes |
| Maximum CPU Speed | 20 MHz |
| Instruction Throughput | 5 MIPS |
| Internal Oscillator | 8 MHz |
| Number of I/O Pins | 6 |
| ADC | 10-bit, 4 channels |
| Analog Comparators | 2 (high-speed, 20 ns response) |
| CCP Modules | 1 |
| Supply Voltage (Shunt Regulator) | 2 V to 5 V (with HV shunt) |
| Supply Voltage (Direct) | 4 V to 5 V |
| Operating Temperature | -40 C to +85 C |
| Package | 8-pin DFN (3x3 mm) with exposed pad |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC12HV752-I/MF Pin Configuration
| Pin 1 | RA3/MCLR/VPP — Digital I/O / Master Clear (reset) / programming voltage input |
| Pin 2 | RA0/AN0/C1IN+/ICSPDAT — Digital I/O / ADC input / comparator non-inverting input / ICSP data |
| Pin 3 | RA1/AN1/C1IN-/ICSPCLK — Digital I/O / ADC input / comparator inverting input / ICSP clock |
| Pin 4 | RA2/AN2/C1OUT — Digital I/O / ADC input / comparator 1 output |
| Pin 5 | VSS — Ground reference |
| Pin 6 | RA4/AN3/C2IN+/P1B/CCP1 — Digital I/O / ADC input / comparator 2 non-inverting input / PWM output |
| Pin 7 | RA5/AN4/C2IN-/P1A/CCP1 — Digital I/O / ADC input / comparator 2 inverting input / PWM output |
| Pin 8 | VDD — Positive supply (2V to 5V direct, higher via HV shunt regulator) |
Typical Applications
PIC12HV752-I/MF is suitable for 6 applications: Primary-Side Regulation in AC-DC SMPS, LED Driver Control Loops, Battery Charging Management, Fan and Motor Speed Control, IoT Edge Sensor Nodes, Industrial Control and Logic Replacement.
Primary-Side Regulation in AC-DC SMPS
The PIC12HV752-I/MF is purpose-built for primary-side regulation in isolated AC-DC converters such as 5W-15W cell phone chargers and LED drivers. The two 20 ns high-speed analog comparators directly sense the primary-side current via a current transformer, enabling peak current-mode control with sub-microsecond response. The integrated HV shunt regulator accepts 12 V to 15 V directly from the rectified mains bulk capacitor through a single dropping resistor, eliminating the auxiliary winding bias supply. According to the datasheet, the 5 MIPS throughput is sufficient to execute a 50 kHz control loop with margin for valley detection and OVP/UVP protection logic. The CCP module generates the PWM drive to the MOSFET gate with programmable dead-band control.
Recommended
LED Driver Control Loops
The PIC12HV752-I/MF is well suited for constant-current LED driver controllers in commercial and industrial lighting. The 10-bit ADC measures output current via a sense resistor, while the analog comparators detect zero-crossing for boundary conduction mode PFC. The HV shunt simplifies the auxiliary supply when running directly from rectified mains. According to the datasheet, the 6 I/O pins are sufficient for PWM dimming, enable input, fault output, and programming/debug. The 8-pin DFN package (3x3 mm) fits inside compact GU10 and MR16 form-factor LED bulbs, while the exposed pad provides thermal dissipation for the moderate power consumption of the controller itself.
Recommended
Battery Charging Management
The PIC12HV752-I/MF can implement single-cell Li-ion or NiMH charger control in low-power portable applications. The ADC monitors battery voltage, charge current, and temperature, while the PWM controls a linear or switching pass element. The HV shunt regulator allows direct connection to a 9 V or 12 V wall adapter without an external regulator. With 1.75 KB Flash, the device holds a state-machine CC-CV charging algorithm plus safety timers. Per the Microchip datasheet, the 20 MHz CPU executes the charge loop in microseconds, leaving headroom for periodic LED status indication and user-button debounce.
Recommended
Fan and Motor Speed Control
The PIC12HV752-I/MF can implement closed-loop brushless DC fan or small brushed DC motor controllers in consumer appliances. The CCP module provides a 20 kHz PWM drive, while the ADC reads back-EMF or shunt current for closed-loop speed regulation. The analog comparators handle zero-crossing detection for sensorless BLDC commutation. The HV shunt simplifies the 12 V supply path in 24 V or 48 V telecom rectifier fan trays. According to the datasheet, the 5 MIPS throughput easily supports 50 us control periods for motors up to several hundred watts.
Recommended
IoT Edge Sensor Nodes
The PIC12HV752-I/MF serves as a low-cost sensor node controller in IoT edge devices where size and BOM cost matter more than CPU performance. The internal 8 MHz oscillator eliminates external timing components, while the 6 I/O pins connect to a temperature sensor, a digital output, and a UART link. The HV shunt allows direct connection to a 9 V battery or energy-harvesting supply. Per the datasheet, the device supports sleep currents below 1 uA with wake-on-change interrupts, enabling multi-year battery life in remote sensor deployments. The 8-pin DFN (3x3 mm) footprint integrates into wearable and disposable sensor designs.
Recommended
Industrial Control and Logic Replacement
The PIC12HV752-I/MF replaces discrete logic and 555-timer circuits in industrial control panels with a programmable, field-upgradeable solution. The 6 I/O pins handle multiple signal routing tasks, while the 10-bit ADC reads 4-20 mA loop signals or potentiometer setpoints. The HV shunt allows operation from 24 V industrial rails. According to the datasheet, the extended -40C to +85C operating range suits factory floor environments, and the Flash memory allows last-minute logic changes without board rework - reducing SKU complexity for panel builders.
Recommended
Recommended Products Summary
Engineering reference data for PIC12HV752-I/MF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC12F752-I/MF | PIC12HV752-E/MF | PIC12HV615-I/MD | PIC12F1840-I/MF | PIC12F1822-I/MF |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | DFN-8 (3x3 mm) | DFN-8 (3x3 mm) - same | DFN-8 (3x3 mm) - same | DFN-8 (3x3 mm) - same | DFN-8 (3x3 mm) - same | DFN-8 (3x3 mm) - same |
| Program Memory (Flash) | 1.75 KB | 1.75 KB | 1.75 KB | 1.75 KB | 7 KB | 3.5 KB |
| Data RAM | 64 B | 64 B | 64 B | 64 B | 256 B | 128 B |
| Maximum CPU Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 32 MHz | 32 MHz |
| I/O Pins | 6 | 6 | 6 | 6 | 6 | 6 |
| Analog Comparators | 2 (20 ns) | 2 (20 ns) | 2 (20 ns) | 1 | 1 | 1 |
| HV Shunt Regulator | Yes (integrated) | No | Yes (integrated) | Yes (integrated) | No | No |
| ADC | 10-bit, 4-ch | 10-bit, 4-ch | 10-bit, 4-ch | 10-bit, 4-ch | 10-bit, 4-ch | 10-bit, 4-ch |
Key Differentiators
- Integrated HV shunt regulator eliminates external LDO in mains-powered designs (vs PIC12F752-I/MF)
- Two high-speed 20 ns comparators for primary-side peak current control (vs PIC12HV615-I/MD)
- Extended temperature option available in same package (vs PIC12HV752-E/MF)
- Dedicated CCP module for PWM generation (vs PIC12F1822-I/MF)
Design Notes
When using the HV shunt regulator, select the external series dropping resistor (R) such that the shunt current (I_SHUNT) plus load current (I_LOAD) keeps the regulator within its 5 mA to 50 mA regulation range across all input voltage conditions. Use R = (V_IN_max - 5V) / (I_SHUNT + I_LOAD_max). Place a 1 uF decoupling capacitor on VDD close to the IC. Without the HV path, supply VDD directly with a regulated 2 V to 5 V source and a 100 nF bypass cap. Estimated power dissipation in the shunt path is (V_IN - 5V) x I_SHUNT.
Solder the exposed thermal pad (EP) of the DFN-8 package to a copper pour on the PCB to achieve the rated theta_JA of approximately 50 C/W. The pad should be connected to VSS for electrical and thermal performance. Estimated: at 25 C ambient and 200 mW dissipation (typical HV shunt operation), the junction temperature rises ~10 C. Without proper EP soldering, the junction temperature can rise above the 150 C limit, causing thermal shutdown.
Place the 100 nF VDD bypass capacitor within 3 mm of pin 8, using a wide ground trace back to pin 5. If the HV shunt is used, place the series resistor as close to pin 8 as possible to minimize parasitic inductance on the high-voltage trace. Keep analog comparator input traces short and away from PWM outputs (RA4/RA5) to avoid coupling. According to the Microchip datasheet, the exposed pad must NOT be left floating - it requires a thermal via array (typically 4-6 vias on 0.5 mm pitch) to inner ground plane.
Do not apply voltages exceeding the absolute maximum on the HV shunt pin without proper current limiting - the internal shunt transistor has limited power dissipation and will enter thermal shutdown at ~150 C junction. Ensure the MCLR pin (RA3, pin 1) has a proper pull-up or voltage clamping if used in a noisy environment, as it can inadvertently trigger resets. Do not load VDD below the 5 mA minimum required for HV shunt regulation, or the regulator will lose regulation.
Compliance Information
RoHS and REACH compliant per Microchip product page. Industrial temperature grade (-40C to +85C) for I suffix; E suffix extends to +125C. AEC-Q100 not qualified - not intended for automotive safety-critical applications.
