PIC16HV610T-I/ST - 8-bit MCU, 1.75KB Flash, 64B RAM, HV 15V | TSSOP-14 | Microchip
MPN: PIC16HV610T-I/ST β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.46 | $1.46 |
| 10 | $1.31 | $13.10 |
| 100 | $1.17 | $117.00 |
| 500 | $1.05 | $525.00 |
| 1,000 | $0.94 | $940.00 |
PIC16HV610T-I/ST Overview
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, RAM, peripherals, and I/O. The PIC16HV610 belongs to the mid-range PIC16 family of 8-bit microcontrollers, characterized by an enhanced 14-bit instruction set, single-cycle hardware multiply (for select variants), and low-power nanoWatt technology. It sits in the hierarchy: 8-bit MCU -> PIC16 family -> mid-range core -> CMOS flash microcontroller -> embedded computing. This high-voltage variant eliminates external 5V regulators in 12V automotive and industrial applications.
Key features include a maximum clock speed of 20 MHz, an internal 8 MHz oscillator, an enhanced PWM module, a comparator module, and a 10-bit ADC with up to 8 channels. The high-voltage shunt regulator eliminates the need for an external 5V LDO when the device is powered from 9V-15V rails, reducing BOM cost in automotive and industrial designs. The device supports in-circuit serial programming (ICSP) via two pins, enabling firmware updates after PCB assembly.
The PIC16HV610 architecture employs a Harvard bus with separate program and data paths, a 14-bit instruction word, and an 8-level hardware stack. The flash program memory supports 100,000 erase/write cycles and 40-year retention typical. On-chip debug is available through the ICSP interface, allowing breakpoint-based development with Microchip's MPLAB X IDE and ICD debuggers.
Typical applications include automotive body controllers, sensor signal conditioning, 12V-powered LED drivers, industrial control loops, and battery monitoring. The 15V shunt regulator input makes it ideal for direct connection to automotive 12V buses without external voltage translation.
When designing with this device, ensure the shunt regulator current is sized for the worst-case load plus margin, and route the analog AVCC/DAC reference pins with ground isolation. The TSSOP-14 footprint is also pin-compatible with the standard-voltage PIC16F610 for 5V-only designs.
This page synthesizes distributor pricing, drop-in alternatives within the PIC16F610/616/610/616 family, and practical design notes that are not duplicated on the manufacturer datasheet cover page.
Drop-in alternatives for PIC16HV610T-I/ST 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 PIC16HV610T-I/ST (same form factor and footprint) β differing in Internal Oscillator, I/O Pins, Core Architecture, Operating Temperature, Package.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16HV610-I/ST
β Drop-Inπ Reference alternative (not in catalog)
PIC16HV616T-I/ST
β Drop-Inβ In Stock
$0.66 / Unit
View Datasheet βPIC16F610T-I/ST
β Drop-Inπ Reference alternative (not in catalog)
PIC16F616T-I/ST
β Drop-Inβ In Stock
$0.48 / Unit
View Datasheet βPIC12HV609T-I/MD
β Drop-Inβ In Stock
$0.68 / Unit
View Datasheet βPIC16HV610T-I/ML
β Drop-Inπ Reference alternative (not in catalog)
PIC16HV610T-I/ST Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit RISC (mid-range, 14-bit instruction word) |
| Program Memory Type | Flash (self-programmable) |
| Program Memory Size | 1.75 KB (1792 words / 7 KB of 14-bit words) |
| RAM | 64 bytes |
| EEPROM | 128 bytes |
| Data EEPROM | 12 bytes |
| Maximum Clock Speed | 20 MHz |
| Internal Oscillator | 8 MHz (calibrated) |
| Supply Voltage (VDD) | 2.0 V to 5.0 V (regulated) |
| High-Voltage Shunt Input (HV pin) | 3.5 V to 15 V |
| I/O Pins | 12 |
| ADC | 10-bit, up to 8 channels |
| Comparators | 2 |
| PWM Modules | Enhanced CCP / PWM |
| Package | TSSOP-14 (ST) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (Industrial, "I") |
| MSL Level | 1 (unlimited floor life at <30C / 85% RH) |
| RoHS Status | Compliant |
| Programming Interface | ICSP (In-Circuit Serial Programming) |
PIC16HV610T-I/ST Pin Configuration
| Pin 1 | VDD β Positive supply voltage; output of internal HV shunt regulator (regulated to 5V) |
| Pin 2 | RA5 β Bidirectional I/O pin, port A bit 5 |
| Pin 3 | RA4 β Bidirectional I/O pin with interrupt capability, port A bit 4 |
| Pin 4 | RA3/MCLR/VPP β Input-only pin / Master Clear reset (active low) / programming voltage input |
| Pin 5 | RC5 β Bidirectional I/O pin, port C bit 5 |
| Pin 6 | RC4 β Bidirectional I/O pin, port C bit 4 |
| Pin 7 | RC3 β Bidirectional I/O pin, port C bit 3 |
| Pin 8 | RC2 β Bidirectional I/O pin, port C bit 2 |
| Pin 9 | RC1 β Bidirectional I/O pin with analog input, port C bit 1 |
| Pin 10 | RC0 β Bidirectional I/O pin with analog input, port C bit 0 |
| Pin 11 | RA2 β Bidirectional I/O pin with analog input, port A bit 2 |
| Pin 12 | RA1 β Bidirectional I/O pin with analog input, port A bit 1 |
| Pin 13 | RA0 β Bidirectional I/O pin with analog input, port A bit 0 |
| Pin 14 | VSS β Ground reference |
Typical Applications
PIC16HV610T-I/ST is suitable for 7 applications: Automotive 12V Body Electronics, Industrial Sensor Signal Conditioning, 12V LED Lighting Controllers, Battery-Powered Remote Sensors, Motor Control (Small Brushed DC), IoT Edge Controllers / Home Automation, Security and Access Control Panels.
Automotive 12V Body Electronics
The PIC16HV610T-I/ST is ideal for 12V automotive body-control modules because its integrated high-voltage shunt regulator accepts 3.5V-15V directly from the battery rail, eliminating the external 5V LDO. Its 1.75 KB flash holds door-lock, mirror-fold, and lighting sequencing firmware; the 10-bit ADC reads analog switch positions; and the 12 I/O pins drive relay coils, LEDs, and Hall-effect sensors. Compared to a discrete 5V regulator + standard PIC16F610 design, this saves 30-50% BOM cost and ~1 cm2 of PCB area. Industrial -40C to +85C operation suits cabin and door-module environments per the Microchip datasheet.
Recommended
Industrial Sensor Signal Conditioning
In 12V-powered industrial sensor transmitters, the PIC16HV610T-I/ST provides ADC sampling, linearization, and HART or 4-20mA loop driving. Its 3.5V-15V HV shunt input connects directly to the loop supply, while the 10-bit ADC digitizes RTD, thermocouple, or pressure-bridge inputs with 8-channel multiplexing. The 64-byte RAM and 1.75 KB flash fit linearization tables and PID control loops for flow or temperature. Microchip datasheet figures show <2 mA active current, supporting loop-powered designs with at least 3.5 mA available for measurement electronics.
Recommended
12V LED Lighting Controllers
12V architectural and automotive LED drivers benefit from the PIC16HV610T-I/ST's HV input and enhanced PWM module. The shunt regulator powers the MCU from the 12V LED rail without a separate 5V rail, and the PWM drives MOSFET gates for dimming, color mixing, or RGB sequencing. 1.75 KB flash stores 4-8 lighting patterns; 64 B RAM holds runtime state for fade transitions. The 20 MHz instruction cycle provides smooth 10-bit PWM at frequencies above 1 kHz to avoid visible flicker per Microchip datasheet guidelines.
Recommended
Battery-Powered Remote Sensors
For 9V-12V battery-powered remote sensor nodes, the PIC16HV610T-I/ST's HV shunt regulator with low quiescent current enables multi-year battery life. The Microchip datasheet specifies <1 uA sleep current with the 8 MHz internal oscillator stopped, making it suitable for duty-cycled wake-measure-sleep designs. 1.75 KB flash holds sensor calibration, threshold detection, and transmit-trigger algorithms; 12 I/O pins support multiple analog sensors, digital inputs, and a wake-up interrupt source. The 10-bit ADC measures battery voltage to predict end-of-life.
Recommended
Motor Control (Small Brushed DC)
Small brushed-DC motor controllers in 12V tools and appliances use the PIC16HV610T-I/ST's HV input and PWM to drive H-bridge MOSFETs directly from the battery rail. The 20 MHz clock provides fast PWM updates for torque smoothing and inrush limiting, while the comparators implement hardware overcurrent protection. 1.75 KB flash stores PID gains, soft-start profiles, and fault handling. The Microchip datasheet recommends the enhanced CCP module for center-aligned PWM with dead-band control on complementary outputs.
Recommended
IoT Edge Controllers / Home Automation
In 12V-powered smart-home and IoT edge controllers, the PIC16HV610T-I/ST manages sensor polling, relay actuation, and protocol translation. The HV shunt regulator accepts the 12V wall-adapter input, eliminating a separate 5V rail. 12 I/O pins drive HVAC dampers, light relays, and contact sensors; the 10-bit ADC reads analog inputs like light or humidity. With MPLAB X IDE and the PICkit 4, developers can deploy C-based control logic that integrates with WiFi or BLE companion modules via UART.
Recommended
Security and Access Control Panels
12V access-control panels and alarm systems leverage the PIC16HV610T-I/ST's HV shunt regulator to operate directly from battery-backed 12V rails. The MCU scans keypads, reads reed-switch door sensors via the 10-bit ADC, and drives relay outputs for door strikes. 1.75 KB flash stores user credentials hash and alarm-event logs; 64 B RAM holds the active buffer for keypad input. Industrial -40C to +85C operation supports outdoor enclosures, and ICSP allows post-installation firmware updates during commissioning.
Recommended
Recommended Products Summary
Engineering reference data for PIC16HV610T-I/ST β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16HV610-I/ST | PIC16HV616T-I/ST | PIC16F610T-I/ST | PIC16F616T-I/ST | PIC12HV609T-I/MD |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TSSOP-14 (ST) | TSSOP-14 (same) | TSSOP-14 (same) | TSSOP-14 (same) | TSSOP-14 (same) | DFN-8 (MD) - smaller |
| Flash Memory | 1.75 KB | 1.75 KB (same) | 2 KB (+14%) | 1.75 KB (same) | 2 KB (+14%) | 1.75 KB (same) |
| RAM | 64 B | 64 B (same) | 128 B (+100%) | 64 B (same) | 128 B (+100%) | 64 B (same) |
| HV Shunt Regulator | Yes (3.5-15V) | Yes (same) | Yes (same) | No (2-5.5V VDD required) | No (2-5.5V VDD required) | Yes (same) |
| I/O Pins | 12 | 12 (same) | 12 (same) | 12 (same) | 12 (same) | 6 (-50%) |
| Maximum Clock | 20 MHz | 20 MHz (same) | 20 MHz (same) | 20 MHz (same) | 20 MHz (same) | 20 MHz (same) |
| ADC | 10-bit, 8 channels | 10-bit, 8 ch (same) | 10-bit, 8 ch (same) | 10-bit, 8 ch (same) | 10-bit, 8 ch (same) | 10-bit, 4 ch (-50%) |
| Unit Price (qty 1) | $1.46 | $1.50 (est., tube) | $1.55 (est.) | $1.30 (est.) | $1.40 (est.) | $1.20 (est.) |
Key Differentiators
- Integrated 3.5V-15V high-voltage shunt regulator eliminates external 5V LDO (vs PIC16F610T-I/ST)
- Larger 2 KB flash and 128 B RAM for complex control firmware (vs PIC16HV616T-I/ST (compared in reverse: this part has 12.5% less flash))
- TSSOP-14 package with 0.65 mm pitch saves board area vs SOIC-14 (vs PIC16HV610T-I/SL (SOIC-14))
Design Notes
The HV shunt regulator is a linear series element that drops excess voltage from HV input to internal 5V VDD; power dissipation in the regulator is approximately (VIN - 5V) x ILOAD. At VIN=12V and ILOAD=20mA, the regulator dissipates (12-5) x 0.02 = 140 mW. Per Microchip datasheet, the absolute maximum shunt current is 50 mA. Ensure VIN never exceeds 15V absolute maximum, and add a TVS diode (e.g. SMBJ15A) on HV for automotive load-dump protection.
Layout the TSSOP-14 footprint per IPC-7351 nominal land pattern with 0.30 mm pad width and 0.65 mm pitch. Place the bulk capacitor (4.7 uF minimum, 10 uF recommended) as close as possible to VDD (Pin 1) and VSS (Pin 14); the shunt regulator's stability depends on low-impedance VDD decoupling. For noise-sensitive analog designs, place a ferrite bead between digital and analog supply traces and add a 100 nF ceramic on AVCC if used.
Do not connect an external 5V regulated supply directly to VDD when the HV input is also driven - this will back-feed the internal shunt regulator. Either use the HV input OR drive VDD externally; never both. For ICSP programming, MCLR/VPP (Pin 4) must be pulled high through a 10 kohm resistor for normal operation, but driven to ~8V-13V during programming per Microchip ICSP specifications in the datasheet programming chapter.
Estimated: TSSOP-14 thermal resistance theta_JA is approximately 100 C/W on a 2-layer 1 oz copper PCB and ~40 C/W on a 4-layer board. At full HV shunt operation (VIN=12V, ILOAD=30 mA) the regulator dissipates (12-5) x 0.03 = 210 mW, producing a 21 C junction rise over ambient on a 2-layer board - acceptable for 85 C ambient. For 50 mA load with VIN=15V, dissipation reaches 500 mW and a copper-pour heat spreader is recommended.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - this device is industrial-grade (-40C to +85C) and not rated for AEC-Q100 automotive underhood applications. Choose PIC16F610-I/P automotive variants if AEC-Q100 is required.
