PIC12HV615-E/P - 8-Bit 20MHz MCU 1.75KB Flash | Microchip
MPN: PIC12HV615-E/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.45 | $1.45 |
| 10 | $1.3 | $13.00 |
| 100 | $1.12 | $112.00 |
| 500 | $0.99 | $495.00 |
| 1,000 | $0.87 | $870.00 |
PIC12HV615-E/P Overview
An MCU (microcontroller unit) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and peripheral set on one die. Within the PIC taxonomy, this device belongs to the PIC12 mid-range baseline family, itself part of the broader 8-bit PIC microcontrollers category, then microcontrollers -> integrated circuits -> semiconductors. The 'HV' line is a low-pin-count derivative designed to remove the external regulator in cost- or size-sensitive designs.
Key features include 1.75 KB (1K x 14) of self-programmable flash program memory, 64 bytes of RAM, 6 configurable I/O pins, a 20 MHz internal oscillator with software calibration, and a 10-bit ADC with up to 4 channels. The integrated shunt regulator eliminates the need for an external 78xx-style regulator when the input rail exceeds 5V, reducing BOM cost and PCB footprint in space-constrained designs.
Architecturally, the PIC12HV615 uses Microchip's enhanced mid-range RISC core with 35 single-word instructions and a hardware multiplier (8x8 in one cycle). The integrated shunt is rated for input voltages up to a user-defined level (commonly 12V-15V absolute maximum, depending on variant and thermal design), enabling direct operation from battery stacks, 12V bus rails, or rectified AC sources.
Typical applications include low-power sensor nodes, LED driver controllers, smoke detector interfaces, appliance user-interface boards, and battery chargers. The wide operating temperature range (-40°C to +125°C for the 'E' industrial extended grade) supports both consumer and industrial deployments.
When designing with this MCU, derate the shunt regulator power dissipation with proper PCB copper area and never exceed the absolute maximum shunt input voltage; a 1kΩ to 10kΩ shunt resistor pairs with the internal pass element to set VDD.
This page synthesizes distributor pricing tiers, pin-compatible same-family alternatives (PIC12F615, PIC12HV609), and practical design considerations beyond the manufacturer datasheet, including DIP footprint reuse for breadboarding and thru-hole industrial designs.
Drop-in alternatives for PIC12HV615-E/P — 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/P (same form factor and footprint) — differing in Package, Operating Temperature, ADC, Internal Oscillator, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC12HV615-I/P
✅ Drop-In✓ In Stock
$0.82 / Unit
View Datasheet →PIC12HV615-E/MS
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.72 / Unit
View Datasheet →PIC12HV609-I/P
✅ Drop-In✓ In Stock
$0.74 / Unit
View Datasheet →PIC12HV609-E/SN
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.76 / Unit
View Datasheet →PIC12F615-E/P
✅ Drop-In✓ In Stock
$0.74 / Unit
View Datasheet →PIC12HV615-E/P Maximum Ratings & Electrical Characteristics
| Architecture | PIC12 enhanced mid-range 8-bit RISC |
| Instruction Set Width | 14-bit |
| Number of Instructions | 35 single-word |
| Max CPU Clock | 20 MHz |
| Instruction Execution Time | 200 ns at 20 MHz |
| Program Memory (Flash) | 1.75 KB (1K x 14 words) |
| RAM | 64 bytes |
| I/O Pins | 6 |
| ADC | 10-bit, up to 4 channels |
| Internal Oscillator | Yes (factory calibrated, software tunable) |
| Integrated Shunt Regulator | Yes (HV variant) |
| Supply Voltage (VDD) | 2.0 V to user-defined VSHUNT (regulator-dependent) |
| Operating Temperature | -40 C to +125 C (Extended, 'E' grade) |
| Package | 8-pin PDIP (P) |
| Mounting Type | Through-Hole (DIP) |
| RoHS Status | Compliant |
| Lifecycle Status | Active (In Production) |
PIC12HV615-E/P Pin Configuration
| Pin 1 | VDD — Positive supply (regulated output of shunt, or external 2.0-5.5V) |
| Pin 2 | GP5/T1CKI/P1A/OSC1/CLKIN — GPIO5 / Timer1 clock / PWM1A / crystal oscillator in / external clock in |
| Pin 3 | GP4/AN3/T1G/!/MCLR/VPP — GPIO4 / ADC ch3 / Timer1 gate / active-low MCLR / programming VPP |
| Pin 4 | GP3/!/MCLR/VPP — GPIO3 (input only) / active-low MCLR / programming VPP |
| Pin 5 | GP2/AN2/T0CKI/INT/COUT/!P1B — GPIO2 / ADC ch2 / Timer0 clock / external INT / comparator out / PWM1B complement |
| Pin 6 | GP1/AN1/CIN-/ICSPCLK — GPIO1 / ADC ch1 / comparator in- / ICSP clock |
| Pin 7 | GP0/AN0/CIN+/ICSPDAT — GPIO0 / ADC ch0 / comparator in+ / ICSP data |
| Pin 8 | VSS — Ground reference |
Typical Applications
PIC12HV615-E/P is suitable for 6 applications: Low-Power Sensor Node Controller, LED Lighting Driver Controller, Smoke Detector Interface Board, Appliance User-Interface Board, Battery Charger Controller, Industrial Sensor Conditioning Module.
Low-Power Sensor Node Controller
The PIC12HV615-E/P fits low-power sensor nodes because its 1.75 KB flash and 64 bytes RAM support simple polling and threshold logic while the 6 GPIO pins handle sensor I/O and interrupt lines. The integrated shunt regulator lets the MCU operate directly from a 12V battery stack without an external LDO, reducing BOM cost by 3-5 components. The 20 MHz CPU clock provides 200 ns instruction execution, fast enough for 100 Hz sensor sampling loops with headroom for filtering. Compared to a discrete op-amp + LDO solution, the HV variant simplifies PCB layout to roughly 1 square inch and eliminates standby current from a separate regulator.
Recommended
LED Lighting Driver Controller
The PIC12HV615-E/P is well-suited to drive LED strings because its integrated shunt regulator accepts 12V or 24V LED supply rails directly, eliminating the external 5V LDO common in discrete LED controllers. The PWM peripheral (per datasheet typical application) supports dimming at audio-band-inaudible frequencies (>20 kHz) for flicker-free illumination. The 10-bit ADC enables closed-loop current sensing via a shunt resistor, achieving +/-1 LSB dimming linearity. The -40C to +125C extended industrial temperature grade supports outdoor luminaires and industrial fixtures where ambient swings are severe.
Recommended
Smoke Detector Interface Board
The PIC12HV615-E/P suits smoke detector interface boards because the integrated HV shunt lets the MCU share a 9V battery with the ionization chamber or photoelectric sensor without separate regulation. The 6 GPIO pins are sufficient for hush-button input, alarm-LED drive, and piezo buzzer PWM output. The 20 MHz clock allows the MCU to debounce inputs and run self-test routines within 50 ms. The 64-byte RAM accommodates a small alarm-state machine, and 1.75 KB flash holds the basic sensing firmware. Extended industrial temperature range supports attic and basement installations where temperature varies widely.
Recommended
Appliance User-Interface Board
The PIC12HV615-E/P works well in appliance user-interface boards (washers, microwaves, ovens) where it can be powered directly from a 12V or 24V appliance rail via its integrated shunt regulator. The 6 GPIO pins handle button matrix scanning, LED indicators, and relay control outputs. The 10-bit ADC reads potentiometer inputs for analog controls with sufficient resolution for temperature or timer settings. The -40C to +125C temperature grade tolerates the thermal environment near heating elements and compressors. Compared to a discrete logic solution, the PIC reduces component count and adds reprogrammability for late-stage feature changes.
Recommended
Battery Charger Controller
The PIC12HV615-E/P can control low-power battery chargers because the integrated HV shunt derives VDD from a higher-voltage adapter (e.g., 12V wall wart) without an external regulator, reducing BOM and heat. The 10-bit ADC monitors charge voltage and current with 4-channel mux flexibility, while PWM drives a buck FET or linear pass element. The 1.75 KB flash supports basic CC/CV charge profiles for lead-acid or NiMH chemistries. Extended industrial temperature range covers under-hood and outdoor charging scenarios. The 20 MHz clock enables fast ADC sampling for accurate end-of-charge detection.
Recommended
Industrial Sensor Conditioning Module
The PIC12HV615-E/P fits industrial sensor conditioning modules because the integrated shunt regulator accepts 24V industrial bus rails directly, complying with industrial power-supply requirements without a separate regulator. The 10-bit ADC delivers 0.1% FS accuracy for bridge sensors and 4-20 mA loop interfaces after calibration. The 6 GPIO pins handle digital I/O, fault flags, and HART-like modulation where needed. Extended -40C to +125C temperature grade and PDIP package suit legacy industrial enclosures with through-hole assembly and harsh ambient swings. The small flash and RAM are sufficient for linearization, scaling, and digital filtering.
Recommended
Recommended Products Summary
Engineering reference data for PIC12HV615-E/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC12HV615-I/P | PIC12HV615-E/MS | PIC12HV609-I/P | PIC12HV609-E/SN | PIC12F615-E/P |
|---|---|---|---|---|---|---|
| Package | 8-pin PDIP | 8-pin PDIP - same | 8-pin MSOP - same pinout | 8-pin PDIP - same | 8-pin SOIC - same pinout | 8-pin PDIP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Max CPU Clock | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Flash Memory | 1.75 KB | 1.75 KB | 1.75 KB | 1.75 KB | 1.75 KB | 2 KB |
| RAM | 64 bytes | 64 bytes | 64 bytes | 64 bytes | 64 bytes | 64 bytes |
| Integrated Shunt Regulator | Yes (HV variant) | Yes (HV variant) | Yes (HV variant) | Yes (HV variant) | Yes (HV variant) | No - requires regulated VDD |
| ADC | 10-bit, up to 4 channels | 10-bit, up to 4 channels | 10-bit, up to 4 channels | No ADC | No ADC | 10-bit, up to 4 channels |
| Operating Temperature | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) |
| GPIO Count | 6 | 6 | 6 | 6 | 6 | 6 |
| Lifecycle Status | Active | Active | Active | Active | Active | Active |
Key Differentiators
- Integrated shunt regulator eliminates external LDO (vs PIC12F615-E/P)
- Extended industrial temperature grade option (vs PIC12HV615-I/P)
- PDIP package for through-hole assembly (vs PIC12HV615-E/MS)
Design Notes
The integrated HV shunt regulator dissipates (VIN - VDD) x IDD as heat through the external shunt resistor. At VIN=12V, VDD=5V, IDD=5 mA, that is roughly 35 mW - negligible. At higher VIN or with stacked loads, choose a shunt resistor value per the datasheet's VDD regulation curve and ensure its package can handle the worst-case (VIN_MAX - VDD) x I_SHUNT power. Always verify that the shunt resistor's voltage rating exceeds VIN_MAX.
Place the shunt resistor and its decoupling (10 uF + 0.1 uF ceramic on VDD) within 5 mm of the device pins to keep the regulated rail stable. For PDIP packages, route GPIO traces away from the MCLR/VPP pin (pin 4) to avoid noise coupling during in-circuit programming. Maintain a continuous ground plane under the device to support the internal oscillator's noise immunity.
Do not apply VIN above the absolute maximum shunt input voltage or leave VIN floating during programming - both can damage the internal pass element. The MCLR pin must be pulled high through a resistor (typically 10 kohm) for normal operation; floating MCLR holds the device in reset. When migrating from PIC12F615 firmware, remove any code that assumed an external 5V LDO and adjust VDD-monitor thresholds for the shunt output tolerance.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified (consumer/industrial MCU). Lead-free process per Microchip packaging marking.
