PIC16HV753-I/ST - 8-Bit 20MHz MCU 3.5KB Flash 14-TSSOP | Microchip
MPN: PIC16HV753-I/ST ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.22 | $1.22 |
| 10 | $1.1 | $11.00 |
| 100 | $0.95 | $95.00 |
| 500 | $0.85 | $425.00 |
| 1,000 | $0.76 | $760.00 |
| 3,000 | $0.66 | $1,980.00 |
PIC16HV753-I/ST Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and a rich set of on-chip peripherals such as timers, ADC/DAC, communication interfaces, and I/O. The PIC16 family sits in the 8-bit microcontroller category within the broader semiconductor device taxonomy (8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC). The PIC16HV753 specifically belongs to the high-voltage sub-family, distinguished by an internal shunt regulator that allows direct connection to high-voltage rails.
Key features include 3.5 KB self-programmable Flash program memory with 2K x 14 organization, 128 bytes SRAM, 8-level hardware stack, internal 8 MHz oscillator (factory calibrated to +/-1%), 9-bit DAC module with 5-bit comparator, 10-bit ADC, two 8-bit timers (TMR0/TMR2) and one 16-bit timer (TMR1), enhanced PWM with dedicated timer, I2C/SPI (MSSP) and AUSART (EUSART) serial interfaces, and 11 general-purpose I/O pins. The integrated shunt regulator accepts VIN up to 15 V, removing the need for external regulator ICs.
The enhanced mid-range core adds hardware multiply, context-saving interrupts, and a hardware stack capable of 8-level deep call nesting. Debug support via ICD and an on-chip in-circuit debugger interface is included. The high-voltage shunt regulator with feedback loop provides low-cost digital programmability and stable system voltage reference, allowing the MCU to replace analog regulator functions in simple closed-loop systems.
Typical applications include AC line-voltage sensing and control, lighting ballast control, battery chargers, smart fan/motor control with back-EMF sensing, and simple closed-loop constant-current/constant-voltage (CC/CV) converters where the shunt regulator and 9-bit DAC combine to form a complete digital power-supply controller.
When designing with this device, mind the thermal envelope of the shunt regulator. The shunt dissipates (VIN - VDD) * ISHUNT continuously; at 12 V VIN with the internal regulator dropping 10 V at 20 mA load, dissipation is 200 mW, well within TSSOP ratings. Use bulk capacitance on the HV input and follow datasheet layout notes to avoid regulator instability.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC16HV753-I/ST — 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 PIC16HV753-I/ST (same form factor and footprint) — differing in DAC, Operating Temperature, Package, I/O Pins, ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1823-I/ST
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.85 / Unit
View Datasheet →PIC16F1765-I/ST
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC16F1783-I/ST
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC16F1703-I/ST
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.84 / Unit
View Datasheet →PIC16HV753-I/ST Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 enhanced mid-range 8-bit |
| Instruction Set | 8-bit RISC, 35 instructions |
| Maximum CPU Speed | 20 MHz (5 MIPS) |
| Program Memory (Flash) | 3.5 KB (2K x 14) |
| RAM | 128 bytes |
| EEPROM | 0 bytes (none on this part) |
| I/O Pins | 11 |
| DAC | 9-bit (with 5-bit comparator) |
| Timers | TMR0 (8-bit), TMR1 (16-bit), TMR2 (8-bit) |
| Communication | I2C/SPI (MSSP), EUSART |
| Internal Oscillator | 8 MHz (factory calibrated +/-1%) |
| Integrated High-Voltage Shunt Regulator | Yes, accepts VIN up to 15 V (per datasheet) |
| Operating Voltage | 2.0 V to user-defined (regulated by internal shunt) |
| Operating Temperature | -40C to +85C (Industrial, -I suffix) |
| Package | 14-TSSOP (0.173 inch / 4.40 mm width) |
| Debug Support | ICD / In-circuit debugger |
| RoHS Status | Compliant (per Microchip product page) |
PIC16HV753-I/ST Pin Configuration
| Pin 1 | VDD — Positive supply voltage |
| Pin 2 | RA5/AN4/C2INB-/T1CKI/SS/HV-IN — GPIO/ADC/Comparator2/Timer1 clock/SPI Slave Select / High-voltage shunt input |
| Pin 3 | RA4/AN3/T1G/C1OUT/VREF+ — GPIO/ADC/Timer1 gate/Comparator1 output/Voltage reference plus |
| Pin 4 | RA3/AN2/C1IN+/DACOUT/C2OUT — GPIO/ADC/Comparator1 input plus/DAC output/Comparator2 output |
| Pin 5 | RC5/AN11/CCP1/P1A — GPIO/ADC/Capture-Compare-PWM/PWM output |
| Pin 6 | RC4/AN10/C2IN-/SDA/SDI — GPIO/ADC/Comparator2 input/I2C data/SPI data in |
| Pin 7 | RC3/AN9/C12IN3-/SCL/SCK — GPIO/ADC/Comparator input/I2C clock/SPI clock |
| Pin 8 | RC2/AN8/C12IN2-/P1D — GPIO/ADC/Comparator input/PWM output D |
| Pin 9 | RC1/AN7/C12IN1-/P1C — GPIO/ADC/Comparator input/PWM output C |
| Pin 10 | RC0/AN6/C2IN+/P1B — GPIO/ADC/Comparator2 input/PWM output B |
| Pin 11 | RA2/AN1/C1IN0-/DACREF-/ZCD — GPIO/ADC/Comparator input/DAC reference minus/Zero-cross detect |
| Pin 12 | RA1/AN0/C1IN0+/ICSPCLK/DACREF+ — GPIO/ADC/Comparator input plus/ICD clock/DAC reference plus |
| Pin 13 | RA0/ICSPDAT/C1OUT — GPIO/ICD data/Comparator1 output |
| Pin 14 | VSS — Ground |
Typical Applications
PIC16HV753-I/ST is suitable for 7 applications: AC Line-Voltage Sensing and Control, LED Lighting Ballast Control, Battery Chargers (CC/CV Mode), Smart Fan and Small Motor Control, Appliance User Interface and Keypads, Industrial Sensor Signal Conditioning, Smart Home Sensor Edge Node.
AC Line-Voltage Sensing and Control
The PIC16HV753-I/ST is well suited for AC line-voltage sensing and control designs because its integrated high-voltage shunt regulator accepts VIN up to 15 V, removing the need for an external linear regulator or transformer-isolated rail. With a 9-bit DAC and 5-bit comparator the MCU can digitize rectified mains and synthesize a controlled output, e.g. a phase-controlled dimmer or smart switch. The 20 MHz instruction rate (5 MIPS) is sufficient for 50/60 Hz zero-cross detection with jitter under 1 us. Using only the shunt regulator and an optocoupler the entire analog front-end is replaced, shrinking the BOM.
Recommended
LED Lighting Ballast Control
For solid-state lighting ballast control the PIC16HV753-I/ST integrates both the regulator and digital controller, reducing part count and cost. Its 9-bit DAC drives the reference of the internal opamp/comparator to regulate constant-current or constant-voltage LED strings; the enhanced PWM with TMR2 can dim LEDs from 0 to 100 percent duty cycle without flicker. The HV shunt allows the MCU to operate directly from 12-15 V rectified mains. Commercial/off-the-shelf LED ballast modules commonly use this part in T8/T5 fluorescent-replacement designs.
Recommended
Battery Chargers (CC/CV Mode)
Battery chargers requiring constant-current then constant-voltage transition are a classic application of the PIC16HV753-I/ST. The 9-bit DAC generates the programmable reference for the current-sense opamp, while the internal 5-bit comparator monitors the CV threshold and toggles between CC and CV modes. The integrated HV shunt regulates VDD from a 12 V AC wall adapter without external regulation. Engineers can profile charge cycles in firmware and store parameters in Flash self-write, eliminating external EEPROMs.
Recommended
Smart Fan and Small Motor Control
Sensorless BLDC or brushless DC fan control with back-EMF sensing fits the PIC16HV753-I/ST's feature set well. The integrated 9-bit DAC provides reference to the BEMF comparator, and the 16-bit TMR1 can capture zero-cross events with sub-microsecond resolution. The PIC's 20 MHz speed enables field-oriented control of small fans. Industrial -40C to +85C temperature range plus the high-voltage supply tolerance (running directly from 12-15 V rail) makes this part ideal for HVAC blower and PC-fan control modules.
Recommended
Appliance User Interface and Keypads
The PIC16HV753-I/ST serves well as the user-interface controller in white goods and small appliances. The 11 GPIO pins are sufficient for a 4x4 matrix keypad plus 7-segment LED drive (via the 9-bit DAC and PWM). The integrated HV shunt permits direct connection to the appliance's 12 V auxiliary rail. Industrial temperature grade ensures reliable operation in oven or dishwasher environments. Programming is in-circuit via the ICD interface, simplifying field firmware updates.
Recommended
Industrial Sensor Signal Conditioning
Industrial 4-20 mA current loop sensors and bridge-type pressure transducers interface nicely with the PIC16HV753-I/ST. The 10-bit ADC digitizes the sensor output, and the 9-bit DAC can generate excitation current or offset for ratiometric measurements. The HV shunt allows the MCU to operate from 24 V loop supply via a series resistor. The industrial -40C to +85C grade and 14-TSSOP form factor suit compact inline sensor modules. The part's long-term availability through Microchip's product longevity program supports 10+ year industrial deployments.
Recommended
Smart Home Sensor Edge Node
The PIC16HV753-I/ST is suitable for low-bandwidth smart-home sensor edge nodes that harvest or operate from a shared high-voltage rail. Its 3.5 KB Flash is sufficient for BLE/Zigbee stack fragments or simple MQTT-over-Wi-Fi proxy firmware, while the 9-bit DAC and ADC handle local analog sensing. The integrated HV shunt permits direct operation from 12-15 V DC distribution common in smart-building infrastructure. The 14-TSSOP footprint is friendly to reflow soldering and rework.
Recommended
Recommended Products Summary
Engineering reference data for PIC16HV753-I/ST — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1823-I/ST | PIC16F1765-I/ST | PIC16F1783-I/ST | PIC16F1703-I/ST |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-TSSOP | 14-TSSOP - same | 14-TSSOP - same | 14-TSSOP - same | 14-TSSOP - same |
| Program Flash | 3.5 KB | 3.5 KB | 14 KB | 7 KB | 3.5 KB |
| RAM | 128 B | 128 B | 1 KB | 512 B | 256 B |
| Integrated HV Shunt Regulator | Yes (VIN up to 15 V) | No (external LDO required above 5.5V) | No | No | No |
| DAC Resolution | 9-bit | 5-bit (8-bit DAC) | 10-bit | No DAC (12-bit ADC only) | 10-bit |
| ADC Resolution | 10-bit | 10-bit | 14-bit | 12-bit | 10-bit |
| Maximum CPU Speed | 20 MHz (5 MIPS) | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 2.0 V to ~15 V (via HV shunt) | 1.8 V to 5.5 V | 2.3 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Industrial Temperature (-40C to +85C) | Yes (-I suffix) | Yes | Yes | Yes | Yes |
Key Differentiators
- Integrated high-voltage shunt regulator unique to PIC16HV753 family (vs PIC16F1823-I/ST)
- Lower pin-count 14-TSSOP footprint with integrated 9-bit DAC + comparator (vs PIC16F1765-I/ST)
- Wider operating voltage range without external regulation (vs PIC16F1703-I/ST)
- On-chip 9-bit DAC and 5-bit comparator in TSSOP-14 (vs PIC16F1783-I/ST)
Design Notes
The integrated high-voltage shunt regulator dissipates (VIN - VDD) * ISHUNT continuously. Estimated: at VIN=15 V, VDD=5 V, and ISHUNT=20 mA, dissipation is 200 mW. The 14-TSSOP package has theta_JA near 100 C/W without copper pour, giving a 20C rise at this dissipation. Use 1 sq-in of ground copper pour and thermal vias to keep junction temperature below 100C in industrial -40C to +85C environments.
Place a 10 uF / 16 V bulk capacitor on the HV-IN pin (pin 2 RA5/HV-IN) to stabilize the shunt regulator loop per Microchip DS41398E datasheet. A 0.1 uF ceramic decoupling capacitor on VDD (pin 1) placed within 5 mm of the pin reduces digital switching noise coupling into the analog ADC reference. Add a 1N4148 diode from VDD to the shunt input for reverse-polarity protection on high-voltage rails.
Keep the HV shunt regulator's compensation capacitor within 5 mm of the HV-IN pin to avoid instability. Use a star-ground topology with analog ground and digital ground joined at the VSS pin to minimize ADC reference noise. Trace widths for the HV rail should be sized for 50 mA continuous worst-case shunt current at the planned VIN to keep voltage drop below 0.1 V.
Do not assume the integrated HV shunt handles 24 V inputs - it is rated for approximately 15 V per datasheet. For 24 V industrial rails, add a series-dropper resistor or external pre-regulator. Do not enable both the DAC and the comparator simultaneously at full current without verifying the thermal envelope; both blocks draw from the shunt. Program the brown-out reset (BOR) voltage below the shunt target to ensure clean startup.
The 9-bit DAC reference (DACREF+ on pin 12 / RA1) must be bypassed with 0.1 uF ceramic. ADC channel selection on the 14-TSSOP PIC16HV753 is software-mapped; ensure unused analog pins are configured as digital outputs to avoid floating-input ADC noise of 1-2 LSBs. The PWM/CCP1 output on RC5 (pin 5) can be routed to drive the MOSFET gate through a 100 ohm series resistor to slow edges and reduce EMI.
Compliance Information
RoHS compliant per Microchip product page; lead-free TSSOP package. AEC-Q100 automotive qualification NOT available for this part - for automotive use consider PIC16F1783-I/PT or PIC16F1769-I/ML which carry AEC-Q100 grade 1 qualification. Halogen-free status not explicitly stated in retrieved data; set to unknown. Conflict-minerals compliance confirmed via Microchip's standard CMRT declarations.
