PIC12HV752-E/SN - 8-bit 20MHz MCU 1.75KB Flash HV | Microchip
MPN: PIC12HV752-E/SN ✓ Hoạt độngPIC12HV752-E/SN Tóm tắt
A microcontroller is a single-chip computer that integrates a CPU core, program memory, data memory, and peripherals onto one die. The PIC12HV752 belongs to Microchip's PIC12F mid-range 8-bit RISC family, characterized by a compact 35-instruction set, deterministic single-cycle execution (except branches), and aggressive peripheral integration in 8-pin packages. PIC microcontrollers are a subset of microcontrollers -> RISC microcontrollers -> CMOS microcontrollers -> integrated circuits -> semiconductors. The 'HV' suffix denotes the high-voltage shunt regulator variant, while the 'F' variant (PIC12F752) operates from a standard external supply.
Key features include 6 I/O pins, two 20ns high-speed analog comparators, one Capture/Compare/PWM (CCP) module, a 4-channel 8-bit ADC with voltage reference, two 8-bit timers, one 16-bit timer, and an enhanced USART. The integrated 5V shunt regulator allows the HV variant to be powered directly from a 2V-5V bus without an external regulator, simplifying power design for bias-supply applications.
Architecturally, the PIC12HV752 uses a Harvard RISC core with separate program and data buses, enabling single-cycle instruction execution and deterministic interrupt latency. The internal 8MHz oscillator can be tuned or replaced with an external clock source, and the in-circuit serial programming (ICSP) interface allows firmware updates without removing the device from the board. The 14-bit instruction word and 8-bit data path are characteristic of Microchip's mid-range PIC architecture, balancing code density and execution efficiency.
Typical applications include LED lighting control, battery chargers, smart sensors, and industrial bias supplies where the integrated HV regulator eliminates an external LDO. It also fits low-cost motor control, fan controllers, and capacitive-touch human interface designs using the high-speed comparators.
When designing with this part, allocate one pin for ICSP and consider decoupling for the shunt regulator that biases the internal 5V rail. The 64-byte RAM and 1.75KB flash limit the firmware footprint, so optimize for the 35-instruction mid-range core rather than migrating from larger PIC architectures.
This page synthesizes distributor pricing, drop-in same-package alternatives from the PIC12F752 family, and practical design notes not aggregated on any single manufacturer or distributor page.
Bộ thay thế dễ dàng lắp đặt cho PIC12HV752-E/SN — 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 PIC12HV752-E/SN (cùng hình factor và footprint) — khác nhau ở Package, Internal Oscillator, Analog Comparators, ADC, Operating Temperature.
PIC12HV752-I/SN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12F752-E/SN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12HV752-E/P
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC12HV752-E/MF
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC12F752-I/SN
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC12F752-E/P
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC12F752-I/P
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC12HV752-E/SN Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC12 mid-range 8-bit RISC |
| Program Memory (Flash) | 1.75 KB (1K x 14) |
| Data Memory (RAM) | 64 bytes |
| Data EEPROM | Not specified |
| Maximum CPU Frequency | 20 MHz |
| MIPS Performance | 5 MIPS |
| Supply Voltage (HV regulated) | 2.0 V to 5.0 V bus (internal 5V shunt regulator) |
| I/O Pins | 6 |
| Internal Oscillator | 8 MHz |
| Analog Comparators | 2 (20 ns response) |
| ADC | 1 x 8-bit, 4 channels |
| Voltage Reference | Internal, selectable |
| Timers | 2 x 8-bit, 1 x 16-bit |
| CCP Module | 1 (Capture/Compare/PWM) |
| Communication | 1 x Enhanced USART |
| High-Voltage Regulator | Integrated 5V shunt regulator (HV variant) |
| Hộp | 8-SOIC (SN), 0.154" (3.90 mm) width |
| Nhiệt độ hoạt động | -40C to +125C |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC12HV752-E/SN
| Chân 1 | GP5/CCP1 — General-purpose I/O / Capture-Compare-PWM output |
| Chân 2 | GP4/AN3 — General-purpose I/O / ADC input channel 3 |
| Chân 3 | GP3/MCLR — General-purpose input / Master Clear reset (active low) |
| Chân 4 | GP2/AN2/TX/CK — General-purpose I/O / ADC input channel 2 / USART TX / clock |
| Chân 5 | GP1/AN1/CIN-/ICSPCLK — General-purpose I/O / ADC input channel 1 / comparator inverting input / ICSP clock |
| Chân 6 | GP0/AN0/CIN+/ICSPDAT — General-purpose I/O / ADC input channel 0 / comparator non-inverting input / ICSP data |
| Chân 7 | VSS — Ground reference |
| Chân 8 | VDD/HV-in — Positive supply / HV shunt regulator input |
Ứng dụng tiêu biểu
PIC12HV752-E/SN phù hợp cho 7 Áp dụngs: LED Lighting Controllers, Industrial Bias Supplies, Battery Charger Control, Capacitive Touch Human Interface, Small Motor and Fan Speed Controllers, Smart Sensor Hubs, Appliance Control Boards.
LED Lighting Controllers
The PIC12HV752-E/SN fits LED driver control with its integrated HV shunt regulator that eliminates an external LDO when powered from a 12V or 24V LED bus. The 20ns comparators detect zero-current switching for high-efficiency PFC stages, while the CCP module generates PWM dimming at up to 20MHz resolution for flicker-free brightness control. The 6 I/O pins handle LED feedback, enable, and fault detection, with 64 bytes RAM sufficient for color-mixing state. Compared to discrete LED controllers, the integrated HV regulator cuts BOM count by one LDO and two capacitors.
Được đề xuất
Industrial Bias Supplies
For 24V industrial bus applications, the PIC12HV752-E/SN powers itself directly from the bus via its 5V shunt regulator, simplifying the power tree in PLC input modules and sensor hubs. The 6 I/O pins route digital signals, the 8-bit ADC reads up to 4 analog sensors, and the USART interfaces with upstream industrial controllers. The -40C to +125C operating range supports harsh factory environments. The integrated regulator eliminates a dedicated LDO and reduces PCB footprint by 30-40% compared to PIC12F752 designs.
Được đề xuất
Battery Charger Control
In low-power battery charger ICs, the PIC12HV752-E/SN monitors cell voltage via its 8-bit ADC and switches charge modes using the CCP PWM module. The HV regulator allows direct connection to single-cell Li-ion packs (4.2V max), avoiding an external LDO and improving efficiency. The 20ns comparators detect overcurrent conditions in microseconds, while the USART reports status to the host system. The 1.75KB flash stores lookup tables for chemistry-specific charge profiles.
Được đề xuất
Capacitive Touch Human Interface
Capacitive touch buttons and sliders leverage the PIC12HV752-E/SN's two 20ns comparators for charge-time measurement on touch electrodes, eliminating dedicated touch ICs. The integrated HV regulator simplifies power design in appliance panels operating from rectified mains. The 6 I/O pins drive 4-6 touch channels plus an LED feedback indicator. With 5 MIPS performance, the MCU handles mTouch firmware in under 1.5KB of flash.
Được đề xuất
Small Motor and Fan Speed Controllers
BLDC and brushed DC motor control benefit from the PIC12HV752-E/SN's 20MHz CPU, which generates 20kHz PWM with fine duty resolution via the CCP module. The HV shunt regulator connects directly to a 12V fan bus without external regulation, while the 8-bit ADC reads back-EMF or tachometer signals for closed-loop control. The 20ns comparators handle zero-cross detection in synchronous rectification. At $1 in volume, this is one of the lowest-cost MCU solutions for small fan control.
Được đề xuất
Smart Sensor Hubs
IoT sensor nodes use the PIC12HV752-E/SN as a low-cost supervisory MCU, reading analog sensors via its 4-channel ADC and reporting via USART to a host processor or radio module. The HV regulator accepts 2-5V bus power directly from battery packs or energy-harvesting sources. The 64-byte RAM and 1.75KB flash are sufficient for sensor calibration tables and interrupt-driven sampling loops. The 6 I/O pins handle I2C-style bit-banging to sensors.
Được đề xuất
Appliance Control Boards
In white goods and small appliances, the PIC12HV752-E/SN manages user inputs, sensor reads, and relay/MOSFET drive signals. The HV regulator handles rectified mains-derived DC bus power without an external regulator, reducing BOM cost. The -40C to +125C operating range supports oven, dishwasher, and refrigerator environments. The CCP module generates buzzer tones or PWM for variable-power heating elements.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC12HV752-E/SN — 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 | PIC12HV752-I/SN | PIC12F752-E/SN | PIC12HV752-E/P | PIC12HV752-E/MF | PIC12F752-I/SN |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 8-SOIC (SN) | 8-SOIC (SN) - same | 8-SOIC (SN) - same | PDIP-8 (P) - same die, different package | 8-DFN (MF) - same die, different package | 8-SOIC (SN) - same |
| Integrated HV Regulator | Yes (5V shunt) | Yes (5V shunt) | No - external supply required | Yes (5V shunt) | Yes (5V shunt) | No - external supply required |
| Temperature Grade | Extended (-40C to +125C) | Industrial (-40C to +85C) | Extended (-40C to +125C) | Extended (-40C to +125C) | Extended (-40C to +125C) | Industrial (-40C to +85C) |
| Program Memory | 1.75 KB (1K x 14) | 1.75 KB (1K x 14) | 1.75 KB (1K x 14) | 1.75 KB (1K x 14) | 1.75 KB (1K x 14) | 1.75 KB (1K x 14) |
| Maximum CPU Frequency | 20 MHz (5 MIPS) | 20 MHz (5 MIPS) | 20 MHz (5 MIPS) | 20 MHz (5 MIPS) | 20 MHz (5 MIPS) | 20 MHz (5 MIPS) |
| I/O Pins | 6 | 6 | 6 | 6 | 6 | 6 |
| Approx. Unit Price (1 pc) | $1.34 | $1.34 (similar) | $1.20 (slightly lower, no HV reg) | $1.40 (PDIP typically higher) | $1.45 (DFN typically higher) | $1.20 (similar) |
Bảo phân biệt quan trọng
- Integrated 5V HV shunt regulator eliminates external LDO (vsPIC12F752-E/SN)
- Extended -40C to +125C operating range (vsPIC12HV752-I/SN)
- Surface-mount SOIC-8 footprint for automated manufacturing (vsPIC12HV752-E/P)
- 6 I/O pins and full peripheral set in 8-pin package (vsPIC12F509-I/P)
Ghi chú thiết kế
The PIC12HV752-E/SN integrates a 5V shunt regulator that handles input voltages from 2V to 5V. Connect the HV input directly to the bus voltage through a current-limiting resistor; the internal shunt regulates the VDD rail to 5V. Calculate the resistor using R = (Vbus - 5V) / Iload, where Iload includes MCU supply plus any external VDD loads. Add a 100nF decoupling capacitor close to the VDD pin (pin 8) and a 10uF bulk capacitor on the HV input.
Place the HV shunt current-limiting resistor within 5mm of pin 8 to minimize parasitic inductance on the HV bus. Route the VDD trace as a star from the IC pin to all decoupling capacitors. For ICSP programming, route the ICSPCLK (pin 5) and ICSPDAT (pin 6) traces with no series components; if isolation is required, use jumpers rather than resistors to preserve signal integrity during programming.
Do not exceed the maximum HV input current of approximately 50mA - calculate resistor values carefully to limit shunt current under all bus voltage conditions. The MCLR pin (pin 3) is active-low and must be pulled high through a 10k resistor for normal operation; leaving MCLR floating causes erratic resets. The 20ns comparators require the CVREF module to be configured before use, or they will read random values.
When using the high-speed comparators for zero-current detection in PFC or sync-rectifier circuits, keep comparator input traces short (<10mm) and shield them from switching nodes with a ground pour. The 20ns response time is fast enough for kHz-range switching but not MHz; do not use for sub-microsecond detection without external amplification. Add 10k series resistors on comparator inputs if the source impedance exceeds 1k to limit peak input current.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - this is a general-purpose MCU, not automotive grade. Lead-free matte-tin finish. Halogen-free status not explicitly stated in verified data.
