PIC12HV615T-I/MF - 8-bit MCU, 1.75KB Flash, 8-DFN | Microchip
MPN: PIC12HV615T-I/MF ✓ Hoạt độngPIC12HV615T-I/MF Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (flash), working RAM, peripherals, and I/O onto one die. The PIC12HV615 belongs to Microchip's mid-range PIC10/12/16 architecture, which uses a 14-bit instruction word and Harvard bus design optimized for deterministic, byte-oriented embedded control. In the wider taxonomy: PIC12HV615 -> PIC12F family -> 8-bit PIC MCU -> microcontroller -> embedded processing IC -> semiconductor. The "HV" prefix designates an on-chip shunt regulator that lets the device operate directly from a 2.5 V/3.3 V/5 V supply without an external regulator, simplifying power design in space-constrained nodes.
Key features include 1.75 KB flash (1K x 14) self-programmable program memory, 64 bytes RAM, 6 general-purpose I/O, internal 8 MHz oscillator with PLL multiplication to 20 MHz, nanoWatt technology for ultra-low sleep current, an enhanced Capture/Compare/PWM (ECCP) module, 10-bit ADC, two comparators, and an internal shunt regulator that tolerates 4.5 V input rails.
Architecturally, the PIC12HV615 uses a 14-bit RISC instruction set, an 8-level hardware stack, and a 25 ns instruction cycle (40 MIPS equivalent) at 20 MHz. The on-chip shunt regulator replaces the external LDO needed by non-HV PIC12F615, reducing BOM count and PCB area for 5 V-bus sensor and LED-driver nodes.
Typical applications include compact sensor signal conditioning, LED lighting control, low-cost battery chargers, white-goods user-interface controllers, and standalone consumer appliances where small pin count, on-chip regulation, and nanoWatt sleep modes are needed.
When designing, verify that the 8-pin DFN (3x3) thermal pad is properly soldered to the PCB ground plane to dissipate the shunt-regulator heat, and reserve adequate flash/RAM headroom for the chosen application stack.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC12HV615T-I/MF — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC12HV615T-I/MF (cùng hình factor và footprint) — khác nhau ở Internal Oscillator, Package, Operating Temperature, Core Architecture, Data Memory (SRAM).
PIC12F615T-I/MF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12F617-I/MF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12F1822T-I/MF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12HV615T-I/MF Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC 8-bit RISC |
| Family | PIC12F (PIC12HV615) |
| Instruction Word | 14-bit |
| Program Memory | 1.75 KB (1K x 14) Flash |
| RAM | 64 bytes |
| CPU Clock Speed | 20 MHz |
| Internal Oscillator | 8 MHz INT OSC |
| I/O Pins | 6 |
| Điện áp cung cấp | 4 V to 5 V (with on-chip HV shunt regulator, system rail 2.5 V/3.3 V/5 V) |
| Comparators | 2 |
| Hộp | 8-DFN (3x3 mm) with exposed pad |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Trạng thái RoHS | Compliant |
| Special Feature | On-chip shunt regulator (HV version) |
Cấu hình chân PIC12HV615T-I/MF
| Chân 1 | VDD — Positive supply (regulated core rail output, 2.5 V/3.3 V/5 V) |
| Chân 2 | GP5/T1CKI/OSC1/CLKIN — GPIO / Timer1 clock input / crystal oscillator input / external clock input |
| Chân 3 | GP4/AN3/T1G/OSC2/CLKOUT — GPIO / ADC channel 3 / Timer1 gate / crystal oscillator output / clock out |
| Chân 4 | GP3/MCLR/Vpp — GPIO / Master Clear reset (active-low) / programming voltage input |
| Chân 5 | GP2/AN2/T0CKI/INT/COUT/CCP1 — GPIO / ADC ch2 / Timer0 clock / external interrupt / comparator out / CCP1 PWM |
| Chân 6 | GP1/AN1/CIN-/Vref/ICSPCLK — GPIO / ADC ch1 / comparator in- / voltage reference / ICSP clock |
| Chân 7 | GP0/AN0/CIN+/ICSPDAT/ULPWU — GPIO / ADC ch0 / comparator in+ / ICSP data / ultra-low-power wake-up |
| Chân 8 | VSS — Ground reference |
Ứng dụng tiêu biểu
PIC12HV615T-I/MF phù hợp cho 6 Áp dụngs: Compact LED Lighting Controller, Industrial Sensor Signal Conditioning, Low-Cost Battery Chargers, White Goods User Interface Controller, Standalone Consumer Appliance Nodes, IoT Sensor Edge Node / Remote Transmitter.
Compact LED Lighting Controller
The PIC12HV615T-I/MF is well-suited for compact LED lighting controllers where PCB area is at a premium. Its on-chip HV shunt regulator accepts a 4.5-5 V bus directly and produces a regulated core rail, eliminating the external LDO that would otherwise consume board space. The 1.75 KB flash and 64 B RAM comfortably fit state-machine PWM firmware for RGB or single-channel constant-current LED drivers, and the ECCP module delivers hardware PWM at 20 MHz CPU clock with sub-microsecond resolution. Placed directly on the LED module PCB, it drives MOSFETs via GPIO and reads temperature via the 10-bit ADC for thermal foldback. Unlike larger ARM Cortex M0 MCUs, the PIC12HV615 fits a 3x3 mm footprint with exposed pad, enabling ultra-small lighting modules.
Được đề xuất
Industrial Sensor Signal Conditioning
The PIC12HV615T-I/MF is widely used in industrial 4-20 mA loop-powered sensor transmitters and signal-conditioning front-ends. Its 10-bit ADC and two on-chip comparators enable direct interfacing with bridge sensors, thermistors, and RTDs. The HV shunt regulator lets the part draw bias directly from the 24 V industrial loop via an external resistor, simplifying intrinsic-safe designs. The 20 MHz CPU clock executes linearization and digital-filtering firmware (e.g., moving-average or PID) within microseconds, while nanoWatt sleep modes drop quiescent below 1 uA for loop-powered nodes. The 8-pin DFN (3x3) package fits inside a TO-5 or TO-92 sensor can for OEM integration.
Được đề xuất
Low-Cost Battery Chargers
The PIC12HV615T-I/MF is ideal for linear and switch-mode battery chargers in the 100-500 mA range targeting single-cell Li-ion, NiMH, or sealed-lead-acid chemistries. The ECCP module generates PWM for a synchronous buck or flyback converter, while the 10-bit ADC samples charge current and battery voltage for closed-loop CC/CV control. The 1.75 KB flash holds lookup tables for chemistry-specific charge profiles, and the comparator detects input voltage presence for automatic startup. The HV shunt regulator accepts a 5 V USB or wall-adapter rail directly. With 6 I/O available, designers can also drive status LEDs, a serial debug port, and a thermistor input without external logic.
Được đề xuất
White Goods User Interface Controller
The PIC12HV615T-I/MF is well matched to user-interface controllers in washing machines, dishwashers, and refrigerators where cost and BOM count dominate. The 6 I/O directly drive capacitive-touch buttons via the on-chip comparators and route signal to a host MCU or LED display. The 1.75 KB flash fits menu/state-machine firmware, while the 64 B RAM holds button-debounce buffers. The on-chip HV shunt regulator accepts a 5 V rail from a small offline SMPS, and nanoWatt sleep drops standby below 100 nA for energy-star compliance. The 3x3 mm DFN package fits behind a tactile button footprint for invisible-mount designs.
Được đề xuất
Standalone Consumer Appliance Nodes
The PIC12HV615T-I/MF powers standalone consumer nodes such as coffee makers, electric toothbrush chargers, hair dryers, and kitchen timers that require simple, low-cost micro-control. Its on-chip HV shunt regulator accepts the rectified mains-derived 5 V bus, eliminating an external LDO and saving cost and PCB area. The ECCP drives TRIAC or MOSFET-based heater control, the 10-bit ADC reads thermistor input, and the comparator detects zero-cross for line-sync timing. With 1.75 KB flash and 64 B RAM, designers can implement PID temperature control, programmable timers, and safety lockout logic. The DFN-8 3x3 mm package fits inside a SOT-23-sized footprint.
Được đề xuất
IoT Sensor Edge Node / Remote Transmitter
The PIC12HV615T-I/MF is well suited as a low-cost IoT edge node that aggregates sensor data and forwards it to a host MCU or RF transceiver via UART/SPI. Its 6 I/O interface to UART or SPI peripherals, its 10-bit ADC reads analog sensors, and the comparator detects wake-up events for nanoWatt sleep. The HV shunt regulator accepts a 5 V battery or USB rail, and the part's small DFN-8 3x3 mm footprint enables placement inside a coin-cell or AA-battery housing. With 1.75 KB flash, simple sensor-fusion and packetization firmware fits comfortably. For designs needing BLE/Sub-GHz, pair with an external ATmega or PIC18 host, with the PIC12HV615 acting as a sensor front-end MCU.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC12HV615T-I/MF — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC12HV615T-I/MD | PIC12HV615-I/P | PIC12F615T-I/MF | PIC12F617-I/MF | PIC12F1822T-I/MF |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | DFN-8 (3x3 mm) | DFN-8 (4x4 mm) | PDIP-8 (through-hole) | DFN-8 (3x3 mm) - same | DFN-8 (3x3 mm) - same | DFN-8 (3x3 mm) - same |
| Program Memory | 1.75 KB (1K x 14) Flash | 1.75 KB Flash | 1.75 KB Flash | 1.75 KB Flash | 3.5 KB Flash | 3.5 KB Flash |
| RAM | 64 bytes | 64 bytes | 64 bytes | 64 bytes | 128 bytes | 128 bytes |
| CPU Clock | 20 MHz (40 MIPS) | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 32 MHz (32 MIPS) |
| I/O Pins | 6 | 6 | 6 | 6 | 6 | 6 |
| On-chip Shunt Regulator (HV) | Yes (accepts 4.5 V bus) | Yes | Yes | No (external LDO required) | No | No |
| ADC | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit (with computation) |
| Unit Price (qty 1000) | 0.82 USD | 0.85 USD | 0.95 USD (through-hole) | 0.78 USD | 0.92 USD | 1.05 USD |
Bảo phân biệt quan trọng
- On-chip HV shunt regulator eliminates external LDO (vsPIC12F615T-I/MF)
- Smaller DFN-8 footprint option (3x3 mm) for ultra-compact designs (vsPIC12HV615T-I/MD)
- Same-package upgrade path with 2x memory and enhanced peripherals (vsPIC12F1822T-I/MF)
Ghi chú thiết kế
The PIC12HV615T-I/MF integrates an on-chip HV shunt regulator that dissipates (VIN - VDD) * I_bias, typically 1-3 mA bias. At VIN = 5 V and VDD = 3.3 V, dissipation is ~5 mW, negligible. At VIN = 12 V (industrial) and VDD = 5 V, dissipation can reach 21 mW, requiring thermal relief. The exposed thermal pad must be soldered to a copper pour of at least 10 mm^2 (2-layer 1 oz board) to keep theta_JA below 50 C/W. Estimated junction rise: 21 mW * 50 C/W = 1.05 C above ambient at 12 V VIN.
For the 8-DFN (3x3 mm) package, place a 0.1 uF decoupling capacitor (X7R 16 V or higher) within 2 mm of the VDD pin and tie the exposed pad to a ground pour that extends at least 5 mm beyond the package edge to provide thermal sinking for the HV regulator. Use a 4-layer PCB with a continuous ground plane below the part for designs above 12 V VIN. Avoid routing signal traces under the part to prevent coupling into the ADC channels.
Three common pitfalls when designing with PIC12HV615T-I/MF: (1) Forgetting that the HV shunt regulator needs at least 4.0 V input to regulate properly - designs with 3.3 V input must use PIC12F615 instead. (2) Leaving the MCLR/GP3 pin floating - it must be tied to VDD through a 10 kohm pull-up for normal operation, or driven low for reset. (3) Programming via ICSP requires dedicated ICSPCLK (GP1) and ICSPDAT (GP0) lines - design the PCB so these pins are accessible or route them to test pads, otherwise the part becomes un-programmable in-circuit.
Use nanoWatt technology sleep modes for battery-powered designs: switch the CPU clock to LFINTOSC (32 kHz) or disable entirely during idle, dropping quiescent current to sub-microampere levels. According to Microchip datasheet, sleep with WDT disabled draws ~5 nA typical at 3 V. The HV regulator bias current (1-3 mA) cannot be disabled and dominates total quiescent; for true ultra-low power, choose the non-HV PIC12F615 and add a high-efficiency external LDO.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Industrial -40C to +85C temperature grade; not AEC-Q100 qualified for automotive. Lead-free and halogen-free per Microchip environmental compliance documentation.
