PIC12HV615T-I/SN - 8-Bit MCU, 2KB Flash, 64B RAM, 20MHz, 8-SOIC | Microchip
MPN: PIC12HV615T-I/SN ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.85 | $0.85 |
| 10 | $0.78 | $7.80 |
| 100 | $0.7 | $70.00 |
| 500 | $0.62 | $310.00 |
| 1,000 | $0.55 | $550.00 |
| 3,300 | $0.46 | $1,518.00 |
PIC12HV615T-I/SN Overview
A microcontroller (MCU) is a single-chip computer containing a processor core, non-volatile program memory, working RAM, and configurable peripherals. The PIC12HV615 belongs to the 8-bit family of microcontrollers, itself a sub-class of embedded microcontrollers, which are the smallest and most power-efficient members of the broader MCU category in the semiconductor hierarchy. 8-bit PIC MCUs use a Harvard architecture with separate program and data buses and an instruction set tuned for deterministic single-cycle execution at low clock rates.
Key features of this part include a 10-bit, 4-channel Analog-to-Digital Converter (ADC), six general-purpose I/O pins, an 8-bit timer with 1:2/1:1/1:4 prescaler, a 16-bit timer/counter, one Enhanced Capture/Compare/PWM (ECCP) module, an on-chip voltage reference, and an internal 4 MHz/8 MHz oscillator selectable by configuration bits. The device draws roughly 230 µA active at 4 MHz / 2.0 V and supports industrial temperature range operation from -40 °C to +85 °C. The shunt regulator topology makes the PIC12HV615 well suited to products powered from rectified mains or 12 V rails where dropping an external linear regulator lowers BOM cost.
The PIC12HV615 sits at the low end of Microchip's enhanced mid-range 8-bit line, occupying a position between baseline PIC10/12F parts and larger 14-/20-pin mid-range MCUs. Its 14-bit wide instruction word and 35-instruction RISC ISA deliver deterministic 200 ns instruction execution at 20 MHz. The 10-bit ADC is shared with the comparator input mux, allowing mixed-signal sensing in low-cost sensor nodes.
Typical applications include battery charging controllers (where the shunt regulator accepts a high-voltage DC bus directly), LED drivers and signage dimming controllers, capacitive-touch front panels, low-end fan/thermostat control, simple appliance user-interface boards, and inline sensor signal conditioning modules. The 8-pin SOIC footprint also makes it a popular choice for retrofits into legacy 8-bit sockets where board space is constrained.
When designing with this device, observe VDD decoupling requirements: a 0.1 µF ceramic bypass placed within 5 mm of the VDD pin and, where the shunt regulator is used, a series resistor sized so that the minimum operating current keeps the internal regulator in regulation across all load conditions. The -I temperature suffix guarantees -40 °C to +85 °C operation.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC12HV615T-I/SN — 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 PIC12HV615T-I/SN (same form factor and footprint) — differing in Internal Oscillator, Package, Timers, Operating Temperature, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC12HV615-I/SN
✅ Drop-In📋 Reference alternative (not in catalog)
PIC12HV615T-I/MD
✅ Drop-In✓ In Stock
$0.83 / Unit
View Datasheet →PIC12HV615T-I/MS
✅ Drop-In✓ In Stock
$0.55 / Unit
View Datasheet →PIC12HV615-E/SN
✅ Drop-In📋 Reference alternative (not in catalog)
PIC12F615T-I/SN
✅ Drop-In✓ In Stock
$0.83 / Unit
View Datasheet →PIC12F617T-I/SN
✅ Drop-In📋 Reference alternative (not in catalog)
PIC12HV615T-I/SN Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC (Harvard, RISC) |
| Program Memory (FLASH) | 1.75 KB (1K x 14 words) |
| Data RAM | 64 bytes |
| Data EEPROM | 128 bytes (typical for PIC12HV615 family) |
| Maximum CPU Clock | 20 MHz |
| Instruction Cycle | 200 ns at 20 MHz (4 clock per instruction) |
| Supply Voltage (VDD) | 2.0 V to 5.5 V |
| Shunt Regulator Input Voltage | 2.0 V typical minimum to 13 V maximum |
| Operating Temperature | -40 °C to +85 °C (Industrial, "I" suffix) |
| I/O Pins | 6 general-purpose |
| ADC | 10-bit, 4-channel |
| Comparators | 1 (with shared DAC reference) |
| Timers | 1 x 8-bit, 1 x 16-bit |
| Enhanced CCP/ECCP | 1 module |
| Internal Oscillator | 4 MHz / 8 MHz selectable |
| Package | 8-pin SOIC (SN), 3.90 mm body width |
| Packing Media | Tape and Reel (3300 per reel) |
| RoHS Status | Compliant |
PIC12HV615T-I/SN Pin Configuration
| Pin 1 | VDD — Positive supply voltage; HV shunt regulator input |
| Pin 2 | GP5/T1CKI/OSC1/CLKIN — I/O / Timer1 clock / crystal oscillator input |
| Pin 3 | GP4/AN3/T1G/OSC2/CLKOUT — I/O / ADC input 3 / Timer1 gate / oscillator output |
| Pin 4 | GP3/MCLR/VPP — I/O / Master Clear (reset) / programming voltage |
| Pin 5 | GP2/AN2/T0CKI/INT/COUT/CCP1 — I/O / ADC input 2 / Timer0 / external interrupt / comparator out / CCP1 |
| Pin 6 | GP1/AN1/CIN-/ICSPCLK — I/O / ADC input 1 / comparator in- / programming clock |
| Pin 7 | GP0/AN0/CIN+/ICSPDAT — I/O / ADC input 0 / comparator in+ / programming data |
| Pin 8 | VSS — Ground reference |
Typical Applications
PIC12HV615T-I/SN is suitable for 6 applications: Battery Charging Controllers, LED Lighting and Signage Drivers, Capacitive Touch Front Panels, Low-End Fan and Thermostat Control, Smart Sensor Signal Conditioning, Simple Appliance User Interface Boards.
Battery Charging Controllers
The PIC12HV615T-I/SN's integrated high-voltage shunt regulator accepts DC bus voltages up to approximately 13 V directly, eliminating the external 5 V LDO. Its 10-bit ADC senses charge current and battery voltage through a current-sense resistor, while the ECCP module generates PWM drive for the buck-converter power stage. With only 1.75 KB FLASH, this MCU is well-matched to charge profiles for sealed lead-acid, NiMH, and small Li-ion packs where firmware logic is compact.
Recommended
LED Lighting and Signage Drivers
The PIC12HV615T-I/SN drives constant-current LED strings from a high-voltage DC rail using its on-chip HV regulator and the ECCP's enhanced PWM with auto-shutdown. The 10-bit ADC monitors LED current via a sense resistor, and the 16-bit timer supports fade and dimming profiles. Industrial -40 °C to +85 °C temperature range covers both indoor architectural fixtures and outdoor signage enclosures, while the 8-pin SOIC keeps the controller BOM under 50 mm².
Recommended
Capacitive Touch Front Panels
With the PIC12HV615T-I/SN's on-chip comparator and 10-bit ADC supporting mTouch® capacitive sensing firmware, the MCU reads 4 touch pads via the shared analog input mux and reports keystrokes over GPIO to a host controller. The HV shunt regulator simplifies 12 V panel-bus designs, while only 6 I/O pins are required for 4 pads plus a wake-up LED. The 20 MHz clock provides ample cycles for capacitive charge-time measurement at sub-10 ms response times.
Recommended
Low-End Fan and Thermostat Control
The PIC12HV615T-I/SN reads an NTC thermistor divider through the 10-bit ADC and drives a TRIAC or low-side MOSFET through the ECCP module to regulate fan speed in HVAC appliances. The on-chip HV regulator accepts a rectified 12 V winding supply directly. Industrial temperature grade (-40 °C to +85 °C) covers wall-thermostat and ceiling-fan-variator operating environments, and the 1.75 KB FLASH is sufficient for proportional-integral control loops.
Recommended
Smart Sensor Signal Conditioning
The PIC12HV615T-I/SN acts as an inline sensor conditioning node, digitizing analog sensor outputs with its 10-bit 4-channel ADC and producing PWM or UART-encoded signals for a downstream controller. The HV shunt regulator allows direct attachment to 24 V industrial sensor rails. With 1.75 KB FLASH, the MCU can run calibration curves, linearization, and basic health checks without an external DSP. Low active current (~230 µA at 4 MHz) supports always-on sensor networks.
Recommended
Simple Appliance User Interface Boards
The PIC12HV615T-I/SN scans 4 to 6 buttons and 2 to 3 indicator LEDs while reading a potentiometer or rotary encoder through the 10-bit ADC for low-cost appliance UI. The HV regulator simplifies the power tree in white-goods designs powered from a 12 V or 24 V internal rail. 1.75 KB FLASH fits debounce, blink patterns, and EEPROM-backed settings (128 bytes of data EEPROM available in the family), making it a strong fit for toaster, blender, and small kitchen-appliance panels.
Recommended
Recommended Products Summary
Engineering reference data for PIC12HV615T-I/SN — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC12HV615-I/SN | PIC12HV615T-I/MD | PIC12HV615T-I/MS | PIC12HV615-E/SN | PIC12F615T-I/SN | PIC12F617T-I/SN |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 8-SOIC (3.90 mm) | 8-SOIC (3.90 mm) - same | 8-DFN (3x3 mm) - smaller, pin-compatible | 8-MSOP (3.00 mm) - smaller, pin-compatible | 8-SOIC (3.90 mm) - same | 8-SOIC (3.90 mm) - same | 8-SOIC (3.90 mm) - same |
| Program Memory (FLASH) | 1.75 KB (1K x 14) | 1.75 KB | 1.75 KB | 1.75 KB | 1.75 KB | 1.75 KB | 2 KB |
| Data RAM | 64 B | 64 B | 64 B | 64 B | 64 B | 64 B | 128 B |
| HV Shunt Regulator | Yes (2 V to ~13 V input) | Yes | Yes | Yes | Yes | No (regulator-less) | No (regulator-less) |
| Maximum Clock | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Operating Temperature | -40 °C to +85 °C (Industrial) | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +125 °C (Extended) | -40 °C to +85 °C | -40 °C to +85 °C |
| Packing Media | Tape & Reel (3300) | Tube | Tape & Reel | Tape & Reel | Tube | Tape & Reel | Tape & Reel |
Key Differentiators
- Integrated high-voltage shunt regulator (vs PIC12F615T-I/SN)
- Compact 8-SOIC with on-chip HV regulator (vs PIC12HV615T-I/MD)
- Same family, extended temperature grade option (vs PIC12HV615-E/SN)
Design Notes
When using the PIC12HV615's integrated shunt regulator, place a series resistor between the high-voltage supply (typically 5 V to 13 V) and the VDD pin. The resistor value must be sized so that the minimum operating current keeps the internal regulator in regulation across all load conditions. Microchip's datasheet recommends calculating the resistor from I = (VHV - VDD) / R, with R chosen to bias the regulator around 2 mA. Bypass VDD with a 0.1 µF ceramic capacitor within 5 mm of the pin.
Keep the ICSP programming footprint intact even in production layouts: route PGD (GP0) and PGC (GP1) to test points or an in-circuit programming header. The MCLR/VPP pin requires a 10 kΩ pull-up to VDD; if unused as a reset, it can be tied directly to VDD through the resistor. Decoupling: a single 0.1 µF X7R ceramic between VDD and VSS, placed within 5 mm of the VDD pin, is sufficient for most applications.
Do not assume the 10-bit ADC is ratiometric to VDD - it can also use an external VREF or the internal band-gap reference, depending on configuration bits. When measuring absolute voltages (e.g. battery voltage), enable the internal reference and recalibrate. Also note that the ADC and the comparator share input pins; simultaneous conversion and comparison on the same channel is not possible, so plan channel assignments accordingly. Finally, the -I suffix indicates industrial -40 °C to +85 °C range - for outdoor designs choose the -E suffix (extended -40 °C to +125 °C).
The 8-pin SOIC package has lead inductance around 1-2 nH, which is acceptable for the 20 MHz clock but not for switching power stages. Keep the ECCP/CCP1 PWM traces short and gate the external MOSFET or TRIAC through a proper driver if switching > 100 mA. Use a ground-return path under the PWM signal to minimize loop area and radiated EMI. Place a small RC snubber on TRIAC outputs to limit dV/dt-induced false triggering.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - choose an automotive-grade -VAO suffix variant for vehicle designs. Lead-free and halogen-free per Microchip material declaration.
