PIC12HV615-E/MS - 8-bit 20MHz 1.75KB Flash MCU | Microchip
MPN: PIC12HV615-E/MS β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.36 | $1.36 |
| 10 | $1.22 | $12.20 |
| 100 | $1.04 | $104.00 |
| 500 | $0.86 | $430.00 |
| 1,000 | $0.72 | $720.00 |
PIC12HV615-E/MS Overview
A PIC microcontroller (MCU) is a compact programmable processor built on a Harvard architecture where program and data memory use independent buses. Within Microchip's taxonomy, the PIC12 series belongs to the mid-range 8-bit core with 35 instructions and 8 hardware stack levels, sitting below the PIC16/PIC18 families in complexity but above baseline parts like the PIC10. This hierarchy makes the PIC12HV615 ideal for cost-sensitive, low-pin-count applications where deterministic 8-bit control is preferred over 32-bit solutions.
Key features include 1.75 KB self-programmable Flash, in-circuit serial programming (ICSP) via two pins, an integrated voltage reference, comparator with user-configurable hysteresis, 4-channel 10-bit ADC with internal voltage reference, PWM output, and an on-chip HV shunt regulator that accepts up to 9V on HV pin. The MSOP-8 footprint is a small-outline plastic package measuring 3.00 mm wide, well suited for dense PCB designs. Power-down current drops below 1 uA typical, and the device operates across -40C to +125C industrial extended temperatures.
Typical applications include LED lighting controllers, battery chargers, sensor signal conditioning, power supply monitoring, fan speed controllers, and small appliance controls. The high-voltage shunt regulator removes the need for an external LDO when powered from rectified mains-derived rails. The integrated ADC and comparator allow direct sensor interfacing without external signal conditioning.
When designing with this part, ensure decoupling of VDD with at least a 0.1 uF ceramic capacitor placed within 5 mm of the supply pin, and reserve the ICSPDAT/ICSPCLK pins or dedicated PGM mode for in-circuit programming access. The HV shunt regulator draws excess current to ground, so thermal management of the MSOP-8 thermal pad is important at high input voltages. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the standalone manufacturer datasheet, giving engineers a faster path to BOM validation.
Drop-in alternatives for PIC12HV615-E/MS 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 PIC12HV615-E/MS (same form factor and footprint) β differing in Comparators, Core Architecture, Data EEPROM, Internal Oscillator, Mounting Type.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC12HV615-I/MS
β Drop-Inπ Reference alternative (not in catalog)
PIC12HV615-E/P
β Drop-Inβ In Stock
$0.87 / Unit
View Datasheet βPIC12HV615T-E/MS
β Drop-Inπ Reference alternative (not in catalog)
PIC12F615-I/MS
β Drop-Inπ Reference alternative (not in catalog)
PIC12F615-E/MS
β Drop-Inπ Reference alternative (not in catalog)
PIC12HV615-E/MS Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC mid-range |
| Program Memory (Flash) | 1.75 KB (1K x 14) |
| Data SRAM | 64 bytes |
| Data EEPROM | None (emulated in Flash) |
| Maximum CPU Frequency | 20 MHz |
| Operating Voltage Range | 2.0 V to 5.5 V (HV pin: up to 9 V shunt) |
| I/O Pins | 6 |
| ADC | 10-bit, 4 channels |
| Comparators | 1 with configurable hysteresis |
| Timers | 8-bit Timer0 + 16-bit Timer1 |
| PWM | Yes (via 16-bit Timer1 / ECCP) |
| Internal Oscillator | 4 MHz / 8 MHz selectable |
| ICSP | Yes (2-wire in-circuit serial programming) |
| Package | MSOP-8 (3.00 mm wide) |
| Operating Temperature | -40C to +125C (Extended, E suffix) |
| Power-Down Current | < 1 uA typical |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC12HV615-E/MS Pin Configuration
| Pin 1 | VDD β Positive supply voltage (2.0V-5.5V) |
| Pin 2 | RA5/T1CKI/CCP1/PGM β GPIO RA5 / Timer1 clock input / CCP1 / LVP programming |
| Pin 3 | RA4/AN3/T1G/OSC2/CLKOUT β GPIO RA4 / ADC channel 3 / Timer1 gate / OSC2 / CLKOUT |
| Pin 4 | RA3/MCLR/VPP β GPIO RA3 / Master Clear reset (active low) / programming voltage |
| Pin 5 | RC5/CCP1/AN5/RX β GPIO RC5 / CCP1 / ADC channel 5 / input only (no output driver) |
| Pin 6 | RC4/AN4/C2OUT/SDO β GPIO RC4 / ADC channel 4 / Comparator 2 output / SPI data out |
| Pin 7 | RC3/AN7/C1IN+/C2IN-/PGM β GPIO RC3 / ADC channel 7 / Comparator 1 in+ / Comparator 2 in- / PGM |
| Pin 8 | RC2/AN6/C1IN-/CVREF/ICSPCLK β GPIO RC2 / ADC channel 6 / Comparator 1 in- / CVREF / ICSP clock |
Typical Applications
PIC12HV615-E/MS is suitable for 6 applications: Dimmable LED Lighting Controller, Battery Charger Control, Sensor Signal Conditioning Node, Power Supply Monitor, Fan Speed Controller, Small Appliance Control.
Dimmable LED Lighting Controller
The PIC12HV615-E/MS fits dimmable LED lighting controllers because its 16-bit Timer1 with PWM drives MOSFET gates directly while the 10-bit ADC samples LED current for closed-loop regulation. The integrated HV shunt regulator accepts rectified 5-9V mains-derived rails without a separate LDO, reducing BOM cost and PCB area. The 1.75 KB Flash comfortably stores multi-channel dimming curves, color-mixing tables, and DMX-style protocol handlers for smart-bulb designs.
Recommended
Battery Charger Control
Battery charger designs benefit from the PIC12HV615-E/MS because its 10-bit ADC accurately measures charge current and battery voltage while the comparator triggers over-current shutdown in hardware. The HV shunt regulator accepts a wide input range, making it ideal for USB-charged Li-ion packs, NiMH chargers, and solar-powered chargers with fluctuating supply rails. Power-down current below 1 uA preserves battery life during storage.
Recommended
Sensor Signal Conditioning Node
Sensor conditioning nodes use the PIC12HV615-E/MS because the 10-bit ADC digitizes analog sensors, the comparator with configurable hysteresis handles threshold detection, and the 1.75 KB Flash runs simple digital filters. The MSOP-8 footprint fits inside sensor housings, while ICSP enables field firmware updates. Typical sensor types include NTC thermistors, photodiodes, and strain gauges in industrial IoT nodes.
Recommended
Power Supply Monitor
Power supply monitoring circuits deploy the PIC12HV615-E/MS because its 10-bit ADC samples multiple rails, the comparator flags under/over-voltage events, and PWM outputs drive status LEDs or audible alarms. The HV shunt regulator allows direct connection to high-voltage DC buses up to 9V without external regulation. Industrial-grade -40C to +125C temperature range supports harsh-environment PSU cards in telecom and server applications.
Recommended
Fan Speed Controller
Fan speed controllers use the PIC12HV615-E/MS because the 16-bit Timer1 generates PWM to drive the fan MOSFET, the 10-bit ADC reads tachometer feedback, and the comparator triggers stall-protection shutdown. The HV shunt regulator accepts 12V fan supply rails directly, eliminating external LDO components. The 1.75 KB Flash stores multi-fan profiles, RPM curves, and thermal-trigger logic for PC and appliance cooling.
Recommended
Small Appliance Control
Small appliance controllers integrate the PIC12HV615-E/MS because its 8-bit core and small footprint handle toaster, kettle, and coffee-maker control loops. The HV shunt regulator accepts mains-derived 5-9V rails, the 10-bit ADC reads thermistor inputs, and PWM drives heater elements. Extended -40C to +125C temperature range supports under-hood automotive and kitchen-appliance thermal environments.
Recommended
Recommended Products Summary
Engineering reference data for PIC12HV615-E/MS β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC12HV615-I/MS | PIC12HV615-E/P | PIC12HV615T-E/MS | PIC12F615-I/MS | PIC12F615-E/MS |
|---|---|---|---|---|---|---|
| Package | MSOP-8 (3.00 mm) | MSOP-8 - same | PDIP-8 - same die | MSOP-8 - same | MSOP-8 - same | MSOP-8 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 1.75 KB Flash | 1.75 KB Flash | 1.75 KB Flash | 1.75 KB Flash | 1.75 KB Flash | 1.75 KB Flash |
| Max CPU Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| HV Shunt Regulator | Yes (HV pin up to 9V) | Yes | Yes | Yes | No (external VDD) | No (external VDD) |
| Operating Temperature | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) |
| RAM | 64 bytes | 64 bytes | 64 bytes | 64 bytes | 64 bytes | 64 bytes |
| ADC | 10-bit, 4 channels | 10-bit, 4 channels | 10-bit, 4 channels | 10-bit, 4 channels | 10-bit, 4 channels | 10-bit, 4 channels |
| Lifecycle Status | Active / Production | Active / Production | Active / Production | Active / Production | Active / Production | Active / Production |
Key Differentiators
- Integrated HV shunt regulator eliminates external LDO (vs PIC12F615-I/MS)
- Extended temperature range for industrial applications (vs PIC12HV615-I/MS)
- MSOP-8 footprint is smaller than PDIP-8 alternative (vs PIC12HV615-E/P)
Design Notes
The PIC12HV615-E/MS HV shunt regulator draws excess current from the HV input to ground, so power dissipation scales with VIN minus VDD. At HV=9V and 50 mA load, dissipation is approximately (9V-5V) x 50mA = 200 mW, well within the MSOP-8 thermal limit. Use the HV pin only when needed; for regulated 2V-5.5V supplies, leave HV open and connect VDD directly. Decouple VDD with a 0.1 uF ceramic capacitor within 5 mm of the pin.
Place decoupling capacitors as close as possible to VDD (Pin 1) and VSS (Pin 8) to minimize loop inductance. Route ICSPCLK/ICSPDAT to test points or a 6-pin header for in-circuit programming access. The MSOP-8 thermal pad is not exposed; standard 4-layer FR4 with a small copper pour under the part is sufficient for typical MCU dissipation. Keep analog ADC inputs (AN3-AN7) away from PWM switching traces.
Do not apply HV voltage when VDD is already regulated, as the internal shunt regulator fights the external supply. Pin 5 (RC5) is input-only on PIC12F/HV615; do not drive it as an output. MCLR (Pin 4) requires a 10 kohm pull-up if not used as a reset input; do not leave it floating. Configuration bits must be set explicitly for internal oscillator and watchdog behavior; the device does not default to factory configuration at every reset.
Compliance Information
RoHS compliant per Microchip product page; PIC12HV615 is not AEC-Q100 qualified, so the PIC12F615 automotive-grade variant should be selected for AEC-Q100 designs. Conflict minerals statement available from Microchip corporate compliance.
