PIC16HV616-I/P - 8-bit MCU 3.5KB Flash 20MHz | Microchip
MPN: PIC16HV616-I/P β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.55 | $25.50 |
| 100 | $2.18 | $218.00 |
| 500 | $1.92 | $960.00 |
| 1,000 | $1.68 | $1,680.00 |
PIC16HV616-I/P Overview
What is a PIC microcontroller? A PIC (Peripheral Interface Controller) microcontroller is a family of 8/16/32-bit RISC-based microcontrollers from Microchip Technology built on a Harvard architecture with separate program and data buses. Within the PIC taxonomy, the PIC16HV616 belongs to the mid-range PIC16F family, which provides a balance of cost, peripheral integration, and code efficiency for embedded control tasks.
Key features include 12 I/O pins, three timers, two analog comparators, a 10-bit PWM module, a 10-bit ADC, Brown-Out Detect (BOD), Power-On Reset (POR), and a Watchdog Timer (WDT). The integrated high-voltage shunt regulator allows direct connection to unregulated 12V supplies, simplifying power architecture in appliance and industrial applications.
The PIC16HV616 uses a 14-bit instruction word with a RISC instruction set optimized for C and assembly code density. Its nanoWatt technology provides flexible power management with multiple idle and sleep modes, enabling extended battery life in low-duty-cycle applications. The internal oscillator reduces BOM cost by eliminating the need for external clock components in many designs.
Typical applications include LED lighting controls, battery chargers, SMPS primary-side control, fan speed controllers, small appliance controls, and battery-powered sensor interfaces. The high-voltage capability makes it especially suitable for 12V-24V system designs where a separate regulator would otherwise be required.
When designing with this device, ensure the shunt regulator configuration matches the supply voltage range. The internal shunt regulator requires proper sizing of the external dropping resistor to limit current at minimum VIN. Refer to the Microchip datasheet 41288F for shunt regulator application circuits and thermal considerations.
This page synthesizes distributor pricing, drop-in alternative MPNs, and practical design notes not found on any single distributor page, helping engineers evaluate the PIC16HV616-I/P against same-package drop-in equivalents and cross-family alternatives.
Drop-in alternatives for PIC16HV616-I/P β 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 PIC16HV616-I/P (same form factor and footprint) β differing in ADC, Core Architecture, Package, Timers.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16F616-I/P
β Drop-Inπ Reference alternative (not in catalog)
PIC16HV616-E/P
β Drop-Inβ In Stock
$1.45 / Unit
View Datasheet βPIC16HV616-I/P Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 (8-bit RISC, Harvard) |
| Program Memory Type | Flash |
| Program Memory Size | 3.5 KB (2K x 14) |
| Data RAM | 128 bytes |
| Max CPU Speed | 20 MHz |
| Instruction Set Width | 14-bit |
| Supply Voltage | 3.5 V to 15 V (HV shunt regulator) |
| I/O Pins | 12 |
| Timers | 3 |
| Analog Comparators | 2 |
| PWM Channels | 1 (10-bit) |
| ADC | 10-bit |
| Package | PDIP-14 (through-hole, 0.300 inch) |
| Operating Temperature | -40 C to +85 C (Industrial) |
| Internal Shunt Regulator | Yes (HV suffix) |
PIC16HV616-I/P Pin Configuration
| Pin 1 | VDD β Positive supply voltage |
| Pin 2 | T0CKI/AN2/RA2 β Timer0 clock input / analog input / I/O |
| Pin 3 | AN3/RA3 β Analog input / I/O |
| Pin 4 | RA4/AN4/T1G β I/O / analog input / Timer1 gate |
| Pin 5 | RA5/AN5/T1CKI β I/O / analog input / Timer1 clock |
| Pin 6 | AN6/RC0 β Analog input / I/O |
| Pin 7 | AN7/RC1 β Analog input / I/O |
| Pin 8 | RC2/P1D β I/O / PWM output |
| Pin 9 | RC3/P1C β I/O / PWM output |
| Pin 10 | RC4/C2OUT β I/O / comparator 2 output |
| Pin 11 | RC5/C1OUT β I/O / comparator 1 output |
| Pin 12 | RC6 β I/O |
| Pin 13 | RC7 β I/O |
| Pin 14 | VSS β Ground reference |
Typical Applications
PIC16HV616-I/P is suitable for 6 applications: 12V LED Lighting Controller, Battery Charger Primary-Side Control, SMPS Primary-Side Controller, Small Appliance Control Board, Fan Speed Controller, Battery-Powered Sensor Interface.
12V LED Lighting Controller
The PIC16HV616-I/P is well suited for 12V LED lighting controllers where its integrated HV shunt regulator operates directly from a 12V supply rail per Microchip datasheet 41288F. The internal shunt regulator eliminates the need for an external LDO, reducing the BOM by 2-3 components. The 10-bit PWM module provides smooth dimming control, while the 20MHz CPU clock supports DMX-512 or DALI protocol parsing in real time. The 12 I/O pins are sufficient for LED driver enable signals, fault inputs, and communication interfaces. Compared to discrete 555-based PWM controllers, this MCU enables software-defined dimming curves, color temperature mixing, and remote control integration without hardware redesign.
Recommended
Battery Charger Primary-Side Control
The PIC16HV616-I/P supports primary-side control in isolated battery charger designs where it operates directly from a rectified 12V-15V DC bus per Microchip datasheet 41288F. The two analog comparators enable peak current mode control, while the 10-bit ADC measures battery voltage and temperature for charge termination logic. The Watchdog Timer and Brown-Out Detect provide fault recovery for unattended charger operation. Compared to analog UCC28C42 controllers, this MCU implements adaptive charge profiles (CC-CV-trickle) in firmware, allowing customization via software rather than hardware rework. The 3.5KB Flash stores complete Li-ion, SLA, and NiMH charging algorithms.
Recommended
SMPS Primary-Side Controller
In isolated flyback and buck SMPS designs, the PIC16HV616-I/P serves as a primary-side digital controller operating directly from the rectified 12V-15V input rail per Microchip datasheet 41288F. The internal HV shunt regulator powers the MCU from the same bulk capacitor that feeds the switching converter, simplifying the auxiliary supply. The 20MHz CPU clock enables 50kHz-200kHz PWM frequencies with sufficient headroom for digital compensation loops. The high-speed comparator provides cycle-by-cycle current limiting, while the 10-bit ADC implements output voltage regulation via opto-coupler feedback. Software-based control enables adaptive dead-time insertion and valley switching for improved efficiency.
Recommended
Small Appliance Control Board
The PIC16HV616-I/P targets small appliance controls such as coffee makers, blenders, and toaster ovens where it operates from a rectified 12V-24V AC mains-derived supply per Microchip datasheet 41288F. The integrated shunt regulator eliminates an external regulator, saving cost and PCB area in space-constrained appliance enclosures. The three timers support precise heating element PWM control, user interface button scanning, and motor speed regulation. The 128-byte RAM handles user preference storage while the 3.5KB Flash stores appliance-specific firmware. The 12 I/O pins drive relay controls, sensor inputs, and seven-segment display segments in a typical appliance design.
Recommended
Fan Speed Controller
The PIC16HV616-I/P implements closed-loop fan speed controllers for HVAC and PC cooling applications where it runs directly from a 12V fan supply rail per Microchip datasheet 41288F. The 10-bit PWM module generates tachometer feedback-compatible drive signals, while the 10-bit ADC reads back actual fan speed via frequency-to-voltage conversion. The integrated HV shunt regulator allows direct connection to 12V without a separate 5V rail, saving PCB space in compact fan hubs. The nanoWatt sleep modes reduce quiescent current to microampere levels for standby operation. Software-based PID control adapts to different fan characteristics without hardware tuning.
Recommended
Battery-Powered Sensor Interface
The PIC16HV616-I/P suits industrial sensor interfaces operating from 12V-24V battery or bus supplies where its internal HV shunt regulator removes the need for a separate LDO per Microchip datasheet 41288F. The 10-bit ADC reads sensor signals directly, while the two analog comparators provide threshold detection for alarm outputs. The Watchdog Timer and Brown-Out Detect ensure reliable operation in noisy industrial environments. The nanoWatt technology reduces sleep current to <1uA, enabling multi-year battery life in low-duty-cycle wireless sensor nodes. The 12 I/O pins drive UART, I2C, or SPI sensor interfaces with interrupt-driven wakeup support.
Recommended
Recommended Products Summary
Engineering reference data for PIC16HV616-I/P β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F616-I/P | PIC16HV616-E/P | PIC16HV540-04I/P |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | PDIP-14 | PDIP-14 - same | PDIP-14 - same | PDIP-18 - different |
| Program Memory | 3.5 KB Flash | 3.5 KB Flash | 3.5 KB Flash | 768 x 12 OTP PROM |
| RAM | 128 bytes | 128 bytes | 128 bytes | 25 bytes |
| Max CPU Speed | 20 MHz | 20 MHz | 20 MHz | 4 MHz |
| Supply Voltage | 3.5 V to 15 V (HV shunt) | 2.0 V to 5.5 V (external reg) | 3.5 V to 15 V (HV shunt) | 3.5 V to 15 V (HV shunt) |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +125 C (Extended) | -40 C to +85 C |
| Memory Type | Flash (reprogrammable) | Flash | Flash | OTP PROM (one-time) |
| I/O Pins | 12 | 12 | 12 | 13 |
Key Differentiators
- Integrated high-voltage shunt regulator (vs PIC16F616-I/P)
- Flash reprogrammability vs OTP (vs PIC16HV540-04I/P)
- 20MHz CPU speed vs 4MHz legacy HV PIC (vs PIC16HV540-04I/P)
Design Notes
The internal HV shunt regulator requires an external dropping resistor sized for the application's maximum VIN. Per Microchip datasheet 41288F, calculate R = (VIN_max - 5.0V) / I_shunt_max, where I_shunt_max includes MCU supply current plus shunt regulator overhead. At VIN=15V and I_shunt_max=30mA, R = 333 ohms (1W rating). The shunt regulator dissipates (VIN - 5V) * I_load as heat, which can exceed 0.5W in high-voltage applications.
Do not confuse the PIC16HV616-I/P with the PIC16F616-I/P when sourcing parts. The HV variant requires no external 5V regulator, but if the supply is already regulated to 5V, the PIC16F616-I/P is the lower-cost choice. Mixing them up leads to either unnecessary BOM cost (PIC16F616 in 12V design without regulator) or overvoltage damage (PIC16HV616 directly on 5V rail). Both share the same PDIP-14 footprint but differ in operating voltage range.
Place the HV shunt dropping resistor close to the VDD pin with adequate copper pour for thermal dissipation. The shunt resistor can dissipate 0.25W to 1W depending on VIN and load current. Place decoupling capacitors (100nF ceramic + 10uF electrolytic) within 5mm of the VDD pin. For analog accuracy, route the VSS pin directly to a low-impedance ground plane rather than sharing a ground trace with high-current loads.
Estimated: At maximum operating conditions (VIN=15V, I_shunt=30mA, T_ambient=85C), the HV shunt regulator dissipates approximately 0.3W internally. The PDIP-14 package has a junction-to-ambient thermal resistance of approximately 80 C/W, resulting in a 24C junction temperature rise. This is within the 150C maximum junction rating for industrial temperature grade. Reduce VIN or load current if operating at extended temperature (125C).
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified; for automotive applications consult Microchip's automotive-grade PIC portfolio. Lead-free and halogen-free packaging confirmed via Microchip material declaration.
