PIC16HV616-I/ST - 8-Bit 20MHz MCU 4KB Flash | TSSOP-14
MPN: PIC16HV616-I/ST ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.11 | $1.11 |
| 10 | $1.02 | $10.20 |
| 100 | $0.89 | $89.00 |
| 500 | $0.79 | $395.00 |
| 1,000 | $0.71 | $710.00 |
PIC16HV616-I/ST Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and programmable I/O peripherals on one die. The PIC16HV616 belongs to the Microchip PIC16 enhanced mid-range family, which sits in the 8-bit microcontrollers -> microcontrollers -> embedded ICs -> integrated circuits taxonomy and is widely deployed for low-cost, low-power deterministic control. The HV suffix denotes the integrated shunt regulator that converts a wide input voltage to the chip's internal logic supply.
Key differentiating specifications include the on-chip shunt regulator (eliminating the need for an external LDO in many battery and bus-powered applications), 25mA high-current I/O for direct LED or relay driving, the user-configurable comparator with internal reference and hysteresis, and a wide supply range of 2.0V to 5.5V. The 8-bit Enhanced Mid-Range core delivers deterministic interrupt response and single-cycle instruction execution on this device family.
Typical applications include LED lighting controllers, battery chargers, sensor signal conditioning, simple sensor nodes, and low-power IoT endpoints where the integrated shunt regulator simplifies the power tree. The high-current 25mA I/O also makes the part attractive for driving LEDs, relays, or small solenoids directly without external driver transistors. According to the manufacturer datasheet, the PIC16HV616 family is part of Microchip's enhanced mid-range 8-bit portfolio optimized for cost-sensitive embedded control.
When designing with this part, ensure the shunt regulator resistor RVDD is sized to provide at least 5mA of bias current (typically 100kohm to VDD) and to limit shunt current under worst-case input voltage conditions. The comparator output can be routed internally to timers for advanced capture/compare functions, eliminating external glue logic.
This page synthesizes distributor pricing, drop-in TSSOP-14 alternatives, and practical design notes not found in the standalone manufacturer datasheet.
Drop-in alternatives for PIC16HV616-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 PIC16HV616-I/ST (same form factor and footprint) — differing in Core Architecture, Package, Timers, Internal Oscillator, I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16HV616T-I/ST
✅ Drop-In✓ In Stock
$0.66 / Unit
View Datasheet →PIC16HV616-I/SL
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16HV616-I/P
✅ Drop-In✓ In Stock
$1.68 / Unit
View Datasheet →PIC16HV616-E/ST
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC16HV610-I/ST
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC16F616-I/ST
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16HV616-I/ST Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 Enhanced Mid-Range 8-bit |
| Program Memory (Flash) | 4 KB (2K x 14 words) |
| RAM | 128 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 20 MHz |
| Instruction Set | 35 instructions, 8 stack levels |
| Supply Voltage (VDD) | 2.0 V to 5.5 V |
| Integrated Voltage Regulator | On-chip shunt regulator (HV family) |
| I/O Pins | Up to 11 |
| I/O Source/Sink Current | 25 mA per pin |
| Internal Oscillator | 4 MHz / 8 MHz selectable |
| Comparator | 1 user-configurable with hysteresis |
| Communication Modules | EUSART + MSSP (SPI / I2C) |
| Timers | Timer0, Timer1, Timer2 |
| Package | TSSOP-14 (ST) |
| Operating Temperature | -40 C to +85 C (Industrial) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead Finish | Matte Tin (Pb-free) |
PIC16HV616-I/ST Pin Configuration
| Pin 1 | VDD — Positive supply (2.0V-5.5V), also shunt regulator anode |
| Pin 2 | RA5/AN4 — Bidirectional I/O / analog input |
| Pin 3 | RA4/AN3/T0CKI — Bidirectional I/O / analog input / Timer0 clock |
| Pin 4 | RA3/MCLR/VPP — Input only / Master Clear reset / programming voltage |
| Pin 5 | RC5/CPP1 — Bidirectional I/O / comparator reference output |
| Pin 6 | RC4/C2OUT — Bidirectional I/O / comparator 2 output |
| Pin 7 | RC3/AN7 — Bidirectional I/O / analog input |
| Pin 8 | RC2/AN6 — Bidirectional I/O / analog input |
| Pin 9 | RC1/AN5 — Bidirectional I/O / analog input |
| Pin 10 | RC0/AN4 — Bidirectional I/O / analog input |
| Pin 11 | RA2/AN2 — Bidirectional I/O / analog input |
| Pin 12 | RA1/AN1 — Bidirectional I/O / analog input |
| Pin 13 | RA0/AN0 — Bidirectional I/O / analog input |
| Pin 14 | VSS — Ground reference |
Typical Applications
PIC16HV616-I/ST is suitable for 6 applications: LED Lighting Controllers, Battery-Powered Sensor Nodes, Industrial Sensor Signal Conditioning, Simple IoT Endpoint Controllers, Automotive Accessory Modules, Consumer Appliance Control.
LED Lighting Controllers
The PIC16HV616-I/ST fits LED lighting controllers thanks to its 25mA per-pin source/sink capability, which can drive small LED strings or MOSFET gates directly without external driver transistors. The on-chip shunt regulator accepts a 12V or 24V bus input and converts it to a regulated internal 5V rail, eliminating the external LDO. With 4KB Flash and 128 bytes RAM, the device can store lighting patterns, dimming curves, and DMX-512 address frames. The integrated EUSART handles DMX or serial command streams, and the user-configurable comparator monitors current feedback for constant-current regulation across wide temperature ranges.
Recommended
Battery-Powered Sensor Nodes
The PIC16HV616-I/ST suits low-power sensor nodes because the integrated shunt regulator allows direct connection to battery stacks from 2V to 5.5V with a single bias resistor. The enhanced mid-range core executes instructions in a single cycle, waking, sampling, and returning to sleep quickly to extend battery life. The 128-byte RAM accommodates short sensor averaging buffers, and the 256-byte EEPROM stores calibration constants without external NVM. The MSSP can interface I2C temperature or pressure sensors directly, while the comparator triggers wake-up events on analog threshold crossings - ideal for cold-chain monitoring or environmental telemetry.
Recommended
Industrial Sensor Signal Conditioning
For industrial 4-20mA loop or 0-10V sensor interfaces, the PIC16HV616-I/ST provides on-chip signal conditioning via its user-configurable comparator with hysteresis and selectable internal reference. The integrated shunt regulator accepts a 24V industrial bus directly through RVDD, eliminating the external 24V-to-5V LDO. The 20MHz CPU runs PID loops in real time, and 25mA I/O drives SSR outputs or alarm LEDs without driver transistors. The EUSART bridges to RS-485 transceivers for industrial networking, while the TSSOP-14 footprint enables compact DIN-rail sensor modules.
Recommended
Simple IoT Endpoint Controllers
The PIC16HV616-I/ST serves as a low-cost IoT endpoint controller when paired with an external SPI/I2C radio module such as a Sub-GHz transceiver or BLE module. The MSSP supports both protocols, while the EUSART handles AT-command-style configuration with the radio. 4KB Flash accommodates simple application-layer firmware (sensor sampling, packet formatting, retry logic), and the integrated HV regulator lets the board draw from a wide 5V-12V source like a USB-VBUS or wall adapter without an external regulator.
Recommended
Automotive Accessory Modules
For non-safety automotive accessories (interior lighting, seat controllers, aftermarket gauges), the PIC16HV616-I/ST's -40C to +85C industrial temperature range covers most cabin applications. The integrated shunt regulator tolerates 12V battery transients up to the device's clamp voltage, while the 25mA I/O drives relays, solenoids, or LED strips directly. The 4KB Flash holds CAN-style or LIN-style communication stacks for accessory-bus interfacing, and the TSSOP-14 footprint enables compact module packaging behind dashboard panels.
Recommended
Consumer Appliance Control
The PIC16HV616-I/ST fits cost-sensitive consumer appliances such as coffee makers, humidifiers, and small kitchen appliances. The integrated shunt regulator accepts a wide-range wall-adapter supply (9V-12V DC) directly, while the 25mA I/O drives triac gates, relay coils, or status LEDs without external transistors. The user-configurable comparator implements over-temperature protection with no extra analog IC, and the EUSART/MSSP enables optional BLE or NFC add-on modules for premium SKUs. With TSSOP-14 footprint and $0.71 unit pricing at 1K quantity, BOM cost stays well under $1 for the MCU section.
Recommended
Recommended Products Summary
Engineering reference data for PIC16HV616-I/ST — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16HV616T-I/ST | PIC16HV616-I/SL | PIC16HV616-I/P | PIC16HV610-I/ST | PIC16F616-I/ST |
|---|---|---|---|---|---|---|
| Package | TSSOP-14 (ST) | TSSOP-14 (ST) - identical | SOIC-14 (SL) - larger outline, same pinout | PDIP-14 (P) - through-hole, same pinout | TSSOP-14 (ST) - identical footprint | TSSOP-14 (ST) - identical footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 4 KB | 4 KB | 4 KB | 4 KB | 1.7 KB | 4 KB |
| RAM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 64 bytes | 128 bytes |
| Integrated HV Shunt Regulator | Yes | Yes | Yes | Yes | Yes | No |
| Maximum CPU Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Approx. Unit Price @1K | $0.71 | $0.71 (tape and reel) | $0.75 | $0.85 (PDIP) | $0.55 (lower memory) | $0.65 (no HV regulator) |
Key Differentiators
- Integrated HV shunt regulator (vs PIC16F616-I/ST)
- 25mA source/sink I/O (vs PIC16HV610-I/ST)
- 4KB Flash + 128-byte RAM in TSSOP-14 (vs PIC16HV610-I/ST)
Design Notes
The HV shunt regulator requires a bias resistor RVDD between the external supply and the VDD pin (pin 1). Per the Microchip datasheet, choose RVDD such that bias current is at least 5mA greater than the maximum IC operating current. For a 12V supply and typical 2mA ICC, RVDD = (12V - 5V) / 7mA = 1kohm (1W rated). Adding a 1uF decoupling capacitor on VDD minimizes shunt regulator ripple.
Place the VDD decoupling capacitor (1uF minimum, ceramic X7R) within 5mm of pin 1 to suppress shunt-regulator switching noise. Route RA3/MCLR (pin 4) directly to the ICSP header with no series resistance unless your debugger requires it; a 10kohm pull-up to VDD is recommended if MCLR is unused. Keep analog inputs (RA0-RA5, RC0-RC3) traces short and surrounded by a ground pour to reduce ADC coupling noise.
Do not connect PIC16HV616 directly to a 5V regulated supply and a high-voltage supply simultaneously - the HV regulator clamps VDD internally and will fight the external rail. Ensure the supply voltage does not exceed the shunt regulator's maximum clamp current (typically 50mA continuous); for higher currents use PIC16F616 with an external LDO instead. The 8-level stack means deep recursion or large local arrays can overflow - keep call depth under 6 levels for safety.
Compliance Information
RoHS compliant and Pb-free (matte tin finish) per Microchip product page. Industrial -40C to +85C temperature grade; not AEC-Q100 qualified - select AEC-Q100 parts for automotive safety applications. REACH compliance per Microchip regulatory statement.
