PIC12HV615T-I/MF - 8-bit MCU, 1.75KB Flash, 8-DFN | Microchip
MPN： PIC12HV615T-I/MF ✓ 啟用中PIC12HV615T-I/MF 概覽
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.
直接替換替代品，適用於 PIC12HV615T-I/MF — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC12HV615T-I/MF （相同外形與佔位） — 差異在於 Internal Oscillator, Package, Operating Temperature, Core Architecture, Data Memory (SRAM).
PIC12F615T-I/MF
✅ 直接替換聯絡詢價
查看資料表 →PIC12F617-I/MF
✅ 直接替換聯絡詢價
查看資料表 →PIC12F1822T-I/MF
✅ 直接替換聯絡詢價
查看資料表 →PIC12HV615T-I/MF 最大額定值與電氣特性
| 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 |
| 供應電壓 | 4 V to 5 V (with on-chip HV shunt regulator, system rail 2.5 V/3.3 V/5 V) |
| Comparators | 2 |
| 封裝 | 8-DFN (3x3 mm) with exposed pad |
| 安裝類型 | Surface Mount |
| 工作溫度 | -40C to +85C (Industrial) |
| RoHS 狀態 | Compliant |
| Special Feature | On-chip shunt regulator (HV version) |
PIC12HV615T-I/MF 腳位配置
| 腳位 1 | VDD — Positive supply (regulated core rail output, 2.5 V/3.3 V/5 V) |
| 腳位 2 | GP5/T1CKI/OSC1/CLKIN — GPIO / Timer1 clock input / crystal oscillator input / external clock input |
| 腳位 3 | GP4/AN3/T1G/OSC2/CLKOUT — GPIO / ADC channel 3 / Timer1 gate / crystal oscillator output / clock out |
| 腳位 4 | GP3/MCLR/Vpp — GPIO / Master Clear reset (active-low) / programming voltage input |
| 腳位 5 | GP2/AN2/T0CKI/INT/COUT/CCP1 — GPIO / ADC ch2 / Timer0 clock / external interrupt / comparator out / CCP1 PWM |
| 腳位 6 | GP1/AN1/CIN-/Vref/ICSPCLK — GPIO / ADC ch1 / comparator in- / voltage reference / ICSP clock |
| 腳位 7 | GP0/AN0/CIN+/ICSPDAT/ULPWU — GPIO / ADC ch0 / comparator in+ / ICSP data / ultra-low-power wake-up |
| 腳位 8 | VSS — Ground reference |
典型應用
PIC12HV615T-I/MF 適用於 6 應用s: 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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
推薦產品摘要
工程參考資料，適用於 PIC12HV615T-I/MF — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | 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 |
主要差異化特點
- On-chip HV shunt regulator eliminates external LDO (對比PIC12F615T-I/MF)
- Smaller DFN-8 footprint option (3x3 mm) for ultra-compact designs (對比PIC12HV615T-I/MD)
- Same-package upgrade path with 2x memory and enhanced peripherals (對比PIC12F1822T-I/MF)
設計說明
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.
合規資訊
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.
