PIC12HV752-I/SN - 8-bit MCU, 1.75KB Flash, 8MHz Int Osc | Microchip
MPN： PIC12HV752-I/SN ✓ 啟用中PIC12HV752-I/SN 概覽
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash, RAM, EEPROM), and programmable peripherals on one silicon die. The PIC12HV752 belongs to the PIC microcontroller family (Microchip's 8-bit RISC architecture), which sits within the broader category of embedded microcontrollers -> microcontrollers -> integrated circuits -> semiconductors. PIC MCUs use a Harvard architecture with separate program and data buses, executing instructions in a single cycle for predictable real-time timing.
Key features include 5 MIPS throughput at 20 MHz, 6-channel 10-bit ADC with 12-bit result via oversampling, 2 op amps, a comparator, 2 8-bit timers, 1 16-bit timer, PWM module, and high-current sink/source capability. The internal shunt regulator supports operation from input voltages up to the user-defined maximum (typically 5V regulated from higher bus voltages such as 9V, 12V, or 24V), removing the need for an external regulator on the board.
Technical depth: the device uses a RISC CPU with only 35 single-word instructions, an 8-level hardware stack, and two 8-bit file registers (special function and general purpose). The integrated 5.1V shunt regulator draws excess current through the input pin when VIN exceeds the regulated voltage, enabling unregulated DC bus operation common in appliance and industrial sensor designs. Internal oscillator is factory-calibrated to +/-1% typical accuracy.
Typical applications include LED lighting drivers, battery chargers, smart sensors, white-goods user-interface controls, and 12V-powered signal conditioning circuits where the integrated shunt regulator eliminates a separate LDO.
Design consideration: the I/O count is limited to 6 usable pins (of 8 pins total); plan pin allocation carefully and consider the PIC12F1840 (same SOIC-8 footprint) for designs needing more peripherals.
This page synthesizes distributor pricing, pin-compatible alternatives, and practical design notes not found in the manufacturer datasheet, providing engineers with a one-stop engineering brief for the PIC12HV752-I/SN.
直接替換替代品，適用於 PIC12HV752-I/SN — 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： PIC12HV752-I/SN （相同外形與佔位） — 差異在於 Package, Internal Oscillator, Operating Temperature, MSL Level, RAM.
PIC12HV752T-I/SN
✅ 直接替換聯絡詢價
查看資料表 →PIC12HV752-E/SN
✅ 直接替換聯絡詢價
查看資料表 →PIC12F752-I/SN
✅ 直接替換聯絡詢價
查看資料表 →PIC12F617-I/SN
✅ 直接替換聯絡詢價
查看資料表 →PIC12HV752-I/SN 最大額定值與電氣特性
| Device Family | PIC12 (8-bit RISC) |
| Program Memory | 1.75 KB (1K x 14) Flash |
| RAM | 64 bytes |
| CPU Speed | 20 MHz (5 MIPS) |
| Internal Oscillator | 8 MHz factory-calibrated |
| I/O Pins | 6 |
| Op Amps | 2 internal |
| Comparators | 1 internal |
| 供應電壓 | 4V to 5V (regulated) / 2V via shunt regulator |
| 工作溫度 | -40C to +85C (Industrial) |
| 封裝 | 8-SOIC (SN, 3.90 mm body width) |
| 安裝類型 | Surface Mount |
| MSL 等級 | 1 (per JEDEC J-STD-020) |
| RoHS 狀態 | Compliant |
PIC12HV752-I/SN 腳位配置
| 腳位 1 | VDD — Positive supply (regulated from shunt regulator input) |
| 腳位 2 | RA5/T1CKI/OSC1 — GPIO/ Timer1 clock input/ oscillator input |
| 腳位 3 | RA4/AN3 — GPIO/ analog input channel 3 |
| 腳位 4 | RA3/MCLR/VPP — GPIO/ master clear (reset) input/ programming voltage |
| 腳位 5 | RC5/CPS7/CCP1 — GPIO/ capacitive sensing input/ capture-compare-PWM |
| 腳位 6 | RC4/CPS6 — GPIO/ capacitive sensing input |
| 腳位 7 | RC3/CPS5/AN7 — GPIO/ capacitive sensing input/ analog input channel 7 |
| 腳位 8 | VSS — Ground reference |
典型應用
PIC12HV752-I/SN 適用於 6 應用s: LED Lighting Driver, Industrial Sensor Signal Conditioning, Battery Charger Controller, White Goods User Interface Controller, Automotive Sensor Node, Smart Sensor IoT Endpoint.
LED Lighting Driver
The PIC12HV752-I/SN's 2 internal op amps and PWM output make it ideal for compact constant-current LED driver designs. Its 8-pin SOIC footprint fits into MR16 bulb baseboards and small fixture PCBs. The 5 MIPS throughput from the 20 MHz core provides deterministic PWM control of constant-current loops, while the 5.1V integrated shunt regulator enables direct operation from 12V to 24V LED driver supplies without a separate LDO. Two op amps enable closed-loop current sensing and feedback compensation. Typical designs use one op amp for current sensing and the PWM module for switching regulation.
推薦
Industrial Sensor Signal Conditioning
The PIC12HV752-I/SN's 2 on-chip op amps and 6-channel 10-bit ADC suit analog sensor conditioning on industrial 24V supply rails. The shunt regulator removes the need for an external LDO when the sensor sits on a factory bus. Op amp 1 amplifies bridge sensor signals while op amp 2 handles active filtering; the ADC digitizes the conditioned signal. Industrial -40C to +85C operation is built in, and 5 MIPS throughput handles linearization in firmware without external DSP.
推薦
Battery Charger Controller
The PIC12HV752-I/SN is well suited to small lithium-ion or NiMH charger modules where the integrated shunt regulator handles input voltages from unregulated 9V to 24V wall adapters. Its op amps monitor charge current via shunt resistor and battery voltage, while the 10-bit ADC implements CC/CV (constant-current/constant-voltage) charge profiles in firmware. The 1.75KB Flash holds full charge state machines plus LED status indicators. The 5 MIPS throughput supports real-time charge cycle control without missing fault conditions.
推薦
White Goods User Interface Controller
The PIC12HV752-I/SN handles user-interface tasks in washing machines, dishwashers, and microwave ovens where a single MCU manages button scanning, LED indicators, and simple PWM buzzer/motor control. The shunt regulator accepts 12V or 24V appliance rails without external regulation. Two op amps interface with rotary encoder position sensors or temperature probes, while the comparator enables zero-crossing detection for triac control of AC loads. SOIC-8 packages are easily hand-solderable for low-volume appliance production runs.
推薦
Automotive Sensor Node
The PIC12HV752-I/SN is appropriate for non-safety automotive sensor nodes (cargo sensors, ambient lighting, simple position sensors) where 12V vehicle bus operation eliminates the need for a separate 5V regulator. The 2 on-chip op amps condition bridge-type or thermistor sensor signals directly, while the comparator provides over-voltage or fault detection. Designers must verify automotive EMC compliance at the system level since the industrial-grade I variant is rated -40C to +85C rather than full AEC-Q100; for safety-critical nodes, choose an AEC-Q100 qualified PIC instead.
推薦
Smart Sensor IoT Endpoint
The PIC12HV752-I/SN serves low-bandwidth IoT sensor endpoints that require analog signal conditioning plus a simple MCU for local decision-making before sending data. Two op amps amplify sensor signals, the 10-bit ADC digitizes them, and the comparator wakes the system when thresholds are crossed. The shunt regulator accepts 12V to 24V from solar/battery systems. Although the PIC12HV752 itself lacks radio, the 6 I/O pins are enough to drive a low-cost LoRa or sub-GHz transceiver module over SPI, making it a sensible front-end controller in custom IoT nodes.
推薦
推薦產品摘要
工程參考資料，適用於 PIC12HV752-I/SN — 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 | PIC12HV752T-I/SN | PIC12HV752-E/SN | PIC12F752-I/SN | PIC12F617-I/SN |
|---|---|---|---|---|---|
| Package | 8-SOIC (SN) | 8-SOIC (SN) - same | 8-SOIC (SN) - same | 8-SOIC (SN) - same | 8-SOIC (SN) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 1.75 KB | 1.75 KB | 1.75 KB | 1.75 KB | 1.4 KB |
| CPU Speed | 20 MHz / 5 MIPS | 20 MHz / 5 MIPS | 20 MHz / 5 MIPS | 20 MHz / 5 MIPS | 20 MHz |
| Integrated Shunt Regulator | Yes (5.1V) | Yes (5.1V) | Yes (5.1V) | No (external LDO required) | No (external LDO required) |
| Internal Op Amps | 2 | 2 | 2 | 2 | 0 |
| Internal Comparator | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C |
| ADC | 6-channel, 10-bit | 6-channel, 10-bit | 6-channel, 10-bit | 6-channel, 10-bit | 4-channel, 8-bit |
主要差異化特點
- Integrated 5.1V shunt regulator on an 8-pin SOIC footprint (對比PIC12F752-I/SN)
- Two internal op amps plus a comparator in 8-pin package (對比PIC12F617-I/SN)
- Extended temperature variant available in same package (對比PIC12HV752-E/SN)
設計說明
The integrated 5.1V shunt regulator passes current from VIN to VDD whenever VIN exceeds the regulated voltage, dropping the difference as heat. At VIN=12V, the shunt dissipates approximately (12V-5.1V) x IHV = 6.9V x IHV. Estimated: at 50 mA total HV current, dissipation is ~0.35W continuous, which is acceptable in SOIC-8 with normal PCB copper. At VIN=24V with the same load, dissipation rises to ~0.95W and may require derating or copper pours to avoid junction-temperature excursions. Always size upstream fuse/TVS to handle the shunt current path.
Place the bypass capacitor (0.1uF ceramic) on VDD as close to pin 1 as possible, within 2-3 mm trace length. Add a 10uF bulk electrolytic or tantalum at the shunt regulator input for stable regulation. Keep ICSP programming traces (RA0/RA1/RA3) routed to a programming header or test pad with no series components. The 8-SOIC land pattern uses standard JEDEC SO-8 footprint with 1.27 mm pin pitch.
Do not assume RA0 and RA1 are usable as general I/O without configuration: on the PIC12F752/HV752 family these pins default to ICSP functions and are mapped through configuration bits. Always review CONFIG word settings (especially the MCLRE bit) before layout finalization. MCLR (pin 4) must not be left floating - tie to VDD via a 10k resistor or leave enabled in firmware to prevent spurious resets. Avoid sourcing more than 25 mA from any single I/O pin or 125 mA total per the datasheet absolute maximum ratings.
The internal op amps are general-purpose with limited bandwidth (a few MHz typical). They are unsuitable for high-speed signals but excellent for slow sensor conditioning (thermistor, bridge sensor, photocell). For noisy industrial environments, add a small RC low-pass filter (10 kohm + 100 nF) on op amp output before the ADC input. Decouple analog VDD from digital VDD if your PCB allows separate analog rails; otherwise use ferrite beads to isolate noise.
合規資訊
RoHS/REACH compliance per Microchip product page. Industrial-grade I variant is not AEC-Q100 qualified; for automotive safety applications, consult Microchip automotive-grade PIC portfolio.
