PIC16HV610-I/ST - 8-Bit MCU 20MHz 1.75KB Flash | Microchip
MPN: PIC16HV610-I/ST ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.65 | $1.65 |
| 10 | $1.49 | $14.90 |
| 100 | $1.32 | $132.00 |
| 500 | $1.18 | $590.00 |
| 1,000 | $1.05 | $1,050.00 |
PIC16HV610-I/ST Overview
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash/ROM), data memory (RAM), and a fixed set of peripherals such as timers, comparators, ADCs, and I/O ports. PIC microcontrollers sit within the broader taxonomy of microcontroller -> embedded controller -> integrated circuit -> semiconductor. The PIC16HV610-I/ST belongs to Microchip's mid-range 14-bit instruction word PIC16 family, optimized for low-cost, deterministic embedded control.
Key features include 64 bytes of RAM, 12 I/O pins, one 8-bit and one 16-bit timer, an analog comparator, and a 4-channel 10-bit ADC (per datasheet). The integrated high-voltage shunt regulator eliminates external components in mains-derived or battery-stack designs, making this device especially attractive for cost-sensitive white goods, lighting controls, and power-supply front-end controllers. In-system programming via ICSP supports field firmware updates.
Typical applications include capacitive-touch user interfaces, LED lighting controllers, sensor signal conditioning, low-power remote controls, and primary-side regulation in AC/DC and DC/DC switch-mode power supplies. The wide operating voltage range (2.0V to 15V for logic) supports direct connection to rectified mains or to multi-cell battery stacks. For design considerations, ensure the shunt regulator current is properly derated for worst-case input voltage, and account for the ICSP/PGD/PGC pin sharing when laying out the PCB.
This page synthesizes distributor pricing, parametric comparison with same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC16HV610-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 PIC16HV610-I/ST (same form factor and footprint) — differing in RAM, Timers, Package, RoHS Status, I/O Pins.
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Request AlternativesPIC16HV610-I/ST Maximum Ratings & Electrical Characteristics
| Core | PIC 8-bit (mid-range, 14-bit instruction word) |
| Family | PIC16F |
| Program Memory | 1.75 KB (1K x 14) Flash |
| RAM | 64 bytes |
| Maximum CPU Frequency | 20 MHz |
| Supply Voltage (Logic) | 2.0 V to 15 V |
| High-Voltage Shunt Regulator | Internal, 3.5 V to 15 V input range |
| I/O Pins | 12 |
| Timers | 1 x 8-bit + 1 x 16-bit (per datasheet) |
| Comparators | Yes (analog comparator) |
| Package | 14-pin TSSOP (ST) |
| Operating Temperature Range | -40C to +85C (industrial) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant (per distributor listing) |
| In-System Programming | ICSP via PGD/PGC |
PIC16HV610-I/ST Pin Configuration
| Pin 1 | VDD — Positive logic supply input (2.0V to 15V) |
| Pin 2 | RA5/T1CKI/SS/HLVDIN/AN4 — Digital I/O / Timer1 clock / SPI SS / HLVD input / ADC analog input 4 |
| Pin 3 | RA4/AN3/T1G/HLVDOUT/SDO — Digital I/O / ADC input / Timer1 gate / HLVD output / SPI SDO |
| Pin 4 | RA3/MCLR/VPP — Digital I/O / Master Clear (reset) / ICSP programming voltage |
| Pin 5 | RC5/CCP1/P1A/AN2 — Digital I/O / CCP1 PWM / ADC input 2 |
| Pin 6 | RC4/C2OUT/AN1 — Digital I/O / Comparator 2 output / ADC input 1 |
| Pin 7 | RC3/AN0/C12IN0-/C1IN+/PGD — Digital I/O / ADC input / Comparator input / ICSP data |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RC2/CVREF/AN6/P1D/C12IN2-/C2IN+/PGC — Digital I/O / CVREF output / ADC input / PWM / ICSP clock |
| Pin 10 | RC1/C12IN1-/AN5/C2IN1-/INT — Digital I/O / Comparator input / ADC input / External interrupt |
| Pin 11 | RC0/AN4/C2IN0+/C12IN3+/C1IN0- — Digital I/O / ADC input / Comparator input |
| Pin 12 | RA2/AN2/T0CKI/INT/COUT/ICSPCLK — Digital I/O / ADC input / Timer0 clock / Comparator output / ICSP clock (alternate) |
| Pin 13 | RA1/AN1/C12IN0-/ICSPCLK — Digital I/O / ADC input / ICSP clock (alternate) |
| Pin 14 | RA0/AN0/C12IN+/ICSPDAT — Digital I/O / ADC input / ICSP data (alternate) |
Typical Applications
PIC16HV610-I/ST is suitable for 8 applications: AC/DC Switch-Mode Power Supply Primary-Side Controller, Capacitive Touch User Interface, LED Lighting Controller, Battery Pack Monitoring and Balancing, Industrial Sensor Signal Conditioning, Remote Control and RF Transmitter, Appliance Control Board, Security Sensor and PIR Interface.
AC/DC Switch-Mode Power Supply Primary-Side Controller
The PIC16HV610-I/ST's integrated 3.5V-15V shunt regulator makes it ideal for primary-side control in low-power AC/DC converters. Connected directly to the rectified HV bus without an external regulator, it eliminates a component and reduces BOM cost. The 20MHz core handles fixed-frequency PWM and valley-switching algorithms for quasi-resonant flyback converters. The 12 I/O pins support opto-feedback, voltage-sense, and current-sense inputs, while the analog comparator enables cycle-by-cycle overcurrent protection.
Recommended
Capacitive Touch User Interface
With 12 I/O, an analog comparator, and 10-bit ADC, the PIC16HV610-I/ST supports mTouch capacitive touch sensing for buttons, sliders, and proximity detection. The 20MHz core runs Microchip's capacitive-touch firmware libraries with sub-10ms response times. Operating from 2.0V to 15V simplifies power design in battery-operated and mains-powered appliances. The 1.75KB Flash comfortably holds a 4-8 button UI state machine plus CTMU firmware.
Recommended
LED Lighting Controller
The PIC16HV610-I/ST suits dimmable LED drivers, RGB controllers, and LED retrofit lamps. The internal shunt regulator allows direct connection to mains-derived DC after rectification, while the 20MHz core executes dimming algorithms including logarithmic-curve fade and phase-controlled TRIAC dimming decoding. The 10-bit ADC reads ambient light sensors and analog dimming potentiometers. PWM outputs support constant-current LED driver ICs in buck or boost topologies.
Recommended
Battery Pack Monitoring and Balancing
For multi-cell battery packs (e.g., 4-10 NiMH or 2-3 Li-ion in series), the PIC16HV610-I/ST operates directly from the stack voltage through its integrated shunt regulator. The 10-bit ADC reads per-cell voltages via resistor dividers, while GPIO controls balancing MOSFETs. The 20MHz core runs state-of-health algorithms and SMBus communication. Low-cost TSSOP-14 packaging suits space-constrained 18650/21700 pack designs.
Recommended
Industrial Sensor Signal Conditioning
The PIC16HV610-I/ST interfaces to analog sensors (thermistors, RTDs, strain gauges) in industrial 24V-bus environments without external regulation. The analog comparator provides fast threshold detection, while the 10-bit ADC handles linearization. The 12 I/O drive optocouplers, relays, and 4-20mA current loops. Industrial -40C to +85C temperature rating and robust TSSOP-14 packaging suit factory floor deployments.
Recommended
Remote Control and RF Transmitter
In low-power RF remote controls (sub-GHz or 2.4GHz), the PIC16HV610-I/ST runs from 2-3 alkaline cells or a single Li-ion cell through its wide input range. The 20MHz core handles simple RF4CE or proprietary protocols and button scanning. Sleep current is well under 1µA in idle mode per Microchip datasheet, enabling multi-year battery life. The 1.75KB Flash holds rolling-code encryption libraries for secure key fobs.
Recommended
Appliance Control Board
White goods and small appliances (coffee machines, blenders, washing machines) use the PIC16HV610-I/ST for user-interface control, motor PWM, and sensor reading. Direct 12-15V operation eliminates auxiliary regulators. The 12 I/O drive triac interfaces, relay coils, and segment LCDs (with multiplex). The 1.75KB Flash handles wash-cycle state machines, while the 64B RAM supports debounced button inputs and PWM duty registers.
Recommended
Security Sensor and PIR Interface
In PIR motion detectors, smoke alarms, and door/window sensors, the PIC16HV610-I/ST interfaces directly to 9V or 12V battery supplies without an external regulator. The analog comparator handles PIR signal conditioning with low-noise threshold detection. The 10-bit ADC reads smoke-chamber reference voltages. Sleep currents under 1µA extend battery life to 5+ years on a single 9V cell per Microchip datasheet figures.
Recommended
Recommended Products Summary
Engineering reference data for PIC16HV610-I/ST — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16HV610-I/SL |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Package | TSSOP-14 (ST) | SOIC-14 (SL) - wider, NOT pin-compatible land pattern |
| Core | PIC 8-bit mid-range | PIC 8-bit mid-range (same) |
| CPU Frequency | 20 MHz | 20 MHz (same) |
| Program Memory | 1.75 KB Flash | 1.75 KB Flash (same die) |
| RAM | 64 bytes | 64 bytes (same) |
| I/O Pins | 12 | 12 (same) |
| Integrated HV Shunt Regulator | Yes (3.5V-15V) | Yes (3.5V-15V, same) |
| Logic Supply Range | 2.0V to 15V | 2.0V to 15V (same) |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C (same) |
Key Differentiators
- Integrated high-voltage shunt regulator (vs PIC16F610-I/ST)
- Same TSSOP-14 footprint with extended temperature option (vs PIC16HV610-I/SL)
- Single-chip primary-side SMPS solution (vs PIC16F1824-I/ML)
Design Notes
The PIC16HV610-I/ST's internal high-voltage shunt regulator requires an external series resistor on the HV input to limit current. Per the Microchip datasheet, the shunt regulator sinks approximately 5-10mA typical. Calculate R_series = (V_in_max - V_reg) / I_shunt and ensure the resistor's voltage and power rating handle the worst-case dissipation (e.g., R_series = (15V - 5V) / 10mA = 1kΩ at 100mW — use a 250mW or larger part).
ICSP programming pins (PGD/PGC) are multiplexed onto PORTC pins (RC7/RC6 typically, with alternates on PORTA on some variants). Per the Microchip datasheet, avoid loading these pins heavily in the application circuit — large capacitors or pull-ups exceeding 10kΩ can prevent reliable in-system programming. Use a programming connector with isolation resistors if the application circuit must remain attached during programming.
TSSOP-14 has a 0.65mm pitch — fine-pitch soldering requires proper pad geometry and stencil aperture design. Per Microchip application notes, use NSMD pads with a 1:1 ratio to land, and a stencil thickness of 0.1-0.15mm for reliable reflow. For hand prototyping, breakout boards to 0.1-inch DIP pitch are recommended. Decouple VDD with a 100nF ceramic capacitor placed within 3mm of the supply pin.
The TSSOP-14 package has a thermal resistance (theta_JA) of approximately 100-150°C/W depending on PCB copper area — estimated based on typical TSSOP thermal data. At maximum 20MHz operation with all I/O toggling, the device dissipates well under 50mW, so thermal concerns are minimal in normal applications. Ensure adequate copper pour around the thermal pad (pin 14 or exposed pad variant) if used.
Compliance Information
RoHS compliant per distributor listings. Industrial -40C to +85C temperature grade (suffix 'I'). AEC-Q100 qualification not specified for this part — Microchip offers AEC-Q100 qualified parts under separate ordering codes.
