PIC16F18456-I/SP - 8-bit 32MHz XLP MCU 28KB Flash 28-SPDIP | Microchip
MPN: PIC16F18456-I/SP ✓ Hoạt độngPIC16F18456-I/SP Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), working memory (RAM), and a rich set of peripherals (ADCs, timers, communication interfaces) onto one die. The PIC16F18456 belongs to the eXtreme Low-Power (XLP) family, which targets battery-powered and energy-harvesting designs. Within the broader taxonomy it sits as: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC.
Key features include 32 MHz max CPU clock, 28 KB Flash, 2 KB RAM, 256 bytes EEPROM, 12-bit ADC with Computation (ADCC), 2x PWM with Complementary Waveform Generator (CWG), DAC, comparator, EUSART, and 2x SPI/I2C. Core Independent Peripherals (CIPs) handle tasks in hardware without waking the CPU, reducing power consumption. XLP technology delivers sub-uA sleep currents for battery longevity.
Architecturally the device uses a 14-bit instruction word RISC core (16K x 14 = 28 KB Flash addressing) with a hardware multiply and single-cycle instruction execution. The 12-bit ADCC includes averaging, burst averaging, and threshold comparisons; the CWG provides complementary outputs with programmable dead-band for synchronous motor control.
Typical applications include IoT sensor nodes, consumer appliance controls, industrial sensor interfaces, low-power remote controls, and battery-operated medical devices. The combination of CIPs and XLP suits designs that must wake, sample, and return to deep sleep rapidly. A key design consideration: the SPDIP package is suitable for prototypes, hand-soldered prototypes, and educational use; for volume production choose the SOIC (PIC16F18456-I/SO), SSOP (PIC16F18456-E/SS), or QFN (PIC16F18456-I/STX) variants for smaller PCB footprint.
Bộ thay thế dễ dàng lắp đặt cho PIC16F18456-I/SP — 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 PIC16F18456-I/SP (cùng hình factor và footprint) — khác nhau ở Package, ADC, Core Architecture, Communication, Comparators.
PIC16F18455-I/SP
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Xem tài liệu →PIC16F18446-I/SP
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F18445-I/SP
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F18346-I/SP
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F18345-I/SP
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PIC16F18456-I/SP Tỷ lệ tối đa & tính chất điện
| Core Architecture | 8-bit PIC16 RISC |
| CPU Core | PIC16F |
| Program Memory Type | Flash |
| Program Memory Size | 28 KB (16K x 14) |
| RAM | 2 KB |
| EEPROM | 256 bytes |
| Maximum CPU Clock | 32 MHz |
| Instruction Word Width | 14 bits |
| Operating Voltage Range | 2.3 V to 5.5 V |
| Khoảng nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Package Type | 28-pin SPDIP (Skinny Plastic DIP) |
| Kiểu lắp đặt | Through-Hole |
| ADC | 12-bit ADCC with Computation |
| PWM | 2x with Complementary Waveform Generator (CWG) |
| Communication Interfaces | EUSART, 2x SPI/I2C |
| Peripherals | DAC, Comparator, CWG, CIPs |
| Low-Power Technology | XLP (eXtreme Low-Power) |
| Cấp MSL | 1 (unlimited) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16F18456-I/SP
| Chân 1 | VDD — Positive supply voltage (2.3V to 5.5V) |
| Chân 2 | RA0/ANA0 — GPIO/Analog input (Port A, pin 0) |
| Chân 3 | RA1/ANA1 — GPIO/Analog input (Port A, pin 1) |
| Chân 4 | RA2/ANA2 — GPIO/Analog input (Port A, pin 2) |
| Chân 5 | RA3/ANA3/VREF+ — GPIO/Analog input/Positive reference voltage |
| Chân 6 | RA4/ANA4 — GPIO/Analog input (Port A, pin 4) |
| Chân 7 | RA5/ANA5 — GPIO/Analog input (Port A, pin 5) |
| Chân 8 | RA6/ANA6 — GPIO/Analog input (Port A, pin 6) |
| Chân 9 | RA7/ANA7 — GPIO/Analog input (Port A, pin 7) |
| Chân 10 | RB0/ANB0 — GPIO/Analog input (Port B, pin 0) |
| Chân 11 | RB1/ANB1 — GPIO/Analog input (Port B, pin 1) |
| Chân 12 | RB2/ANB2 — GPIO/Analog input (Port B, pin 2) |
| Chân 13 | RB3/ANB3 — GPIO/Analog input (Port B, pin 3) |
| Chân 14 | VSS — Ground reference |
| Chân 15 | VSS — Ground reference |
| Chân 16 | RB4 — GPIO (Port B, pin 4) |
| Chân 17 | RB5 — GPIO (Port B, pin 5) |
| Chân 18 | RB6/ICSPCLK — GPIO/ICSP clock |
| Chân 19 | RB7/ICSPDAT — GPIO/ICSP data |
| Chân 20 | RC0 — GPIO (Port C, pin 0) |
| Chân 21 | RC1 — GPIO (Port C, pin 1) |
| Chân 22 | RC2 — GPIO (Port C, pin 2) |
| Chân 23 | RC3 — GPIO (Port C, pin 3) |
| Chân 24 | RC4 — GPIO (Port C, pin 4) |
| Chân 25 | RC5 — GPIO (Port C, pin 5) |
| Chân 26 | RC6 — GPIO (Port C, pin 6) |
| Chân 27 | RC7 — GPIO (Port C, pin 7) |
| Chân 28 | VDD — Positive supply voltage (2.3V to 5.5V) |
Ứng dụng tiêu biểu
PIC16F18456-I/SP phù hợp cho 6 Áp dụngs: IoT Sensor Nodes, Consumer Appliance Controls, Industrial Sensor Interfaces, Low-Power Remote Controls, Battery-Operated Medical Devices, Motor Control and PWM Subsystems.
IoT Sensor Nodes
The PIC16F18456-I/SP is well suited for battery-powered IoT sensor nodes where the XLP technology's sub-uA sleep current extends battery life, while the 12-bit ADCC on-chip simplifies analog front-end design. With 28 KB Flash and 2 KB RAM the device easily fits typical LoRaWAN or BLE sensor firmware, and CIPs (Core Independent Peripherals) let ADCC threshold comparisons and CWG operations run without waking the CPU - critical for multi-year coin-cell deployments. Operating from 2.3V to 5.5V supports direct 2x AA cell use.
Được đề xuất
Consumer Appliance Controls
In consumer appliance controls, the PIC16F18456-I/SP provides the GPIOs, timer-based PWMs, and ADC channels needed for small kitchen appliances, white goods user interfaces, and motor-control subsystems. The Complementary Waveform Generator (CWG) outputs synchronous PWMs with programmable dead-band suitable for half-bridge motor drives, while the on-chip 12-bit ADCC reads temperature, current, and position sensors. The 28-SPDIP package simplifies hand-rework in appliance service depots.
Được đề xuất
Industrial Sensor Interfaces
Industrial sensor interfaces benefit from the PIC16F18456-I/SP's 12-bit ADCC, EUSART, and SPI/I2C ports, which handle analog conditioning plus digital protocols in a single chip. The -40C to +85C industrial range operates in factory floors, while XLP idle modes reduce energy use in 4-20 mA loop-powered or energy-harvesting sensors. The CIP framework reduces CPU load, freeing bandwidth for deterministic response to safety-critical events.
Được đề xuất
Low-Power Remote Controls
For low-power remote controls (RF, IR, BLE), the PIC16F18456-I/SP integrates the timer and PWM resources for IR modulation while the EUSART drives UART-based BLE or sub-GHz modules. XLP technology's nanoWatt sleep currents enable years of operation from a single CR2032 coin cell, and CIP-driven wake-on-input responds instantly to button presses without CPU boot latency. The 28-SPDIP package eases prototype rework when adding IR-driver circuitry.
Được đề xuất
Battery-Operated Medical Devices
Battery-operated medical devices such as glucose monitors, pulse oximeters, and wearable health trackers benefit from the PIC16F18456-I/SP's XLP technology, on-chip 12-bit ADCC, and DAC for sensor excitation and signal conditioning. The 28 KB Flash accommodates field-upgradable firmware with version checks, while deterministic CIP execution supports predictable response on safety-critical measurements. Industrial temperature range supports portable clinical and home-care use cases.
Được đề xuất
Motor Control and PWM Subsystems
The PIC16F18456-I/SP's Complementary Waveform Generator (CWG) outputs synchronized PWM pairs with programmable dead-band, making it suitable for brushed and stepper motor control. The on-chip 12-bit ADCC samples feedback signals (current, voltage, position), while CIPs perform cycle-by-cycle current limiting in hardware without CPU latency. The 2 KB RAM comfortably handles PID controller state variables and encoder quadrature decoding.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F18456-I/SP — 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 | PIC16F18455-I/SP | PIC16F18446-I/SP | PIC16F18445-I/SP | PIC16F18346-I/SP |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SPDIP (through-hole) | 28-SPDIP (through-hole) | 28-SPDIP (through-hole) | 28-SPDIP (through-hole) | 28-SPDIP (through-hole) |
| CPU Core | PIC16 8-bit RISC | PIC16 8-bit RISC | PIC16 8-bit RISC | PIC16 8-bit RISC | PIC16 8-bit RISC |
| Program Memory | 28 KB Flash | 28 KB Flash | 28 KB Flash | 14 KB Flash | 28 KB Flash |
| RAM | 2 KB | 2 KB | 1 KB | 1 KB | 2 KB |
| Maximum Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| Peripheral Set | ADCC, CWG, 2xPWM, DAC, CMP, EUSART, 2xSPI/I2C | Reduced ADCC/CWG set | Reduced ADCC/CWG set | Reduced ADCC/CWG set | 12-bit ADC (no CWG), 2xPWM, DAC, CMP, EUSART, 2xSPI/I2C |
Bảo phân biệt quan trọng
- Largest Flash with full CIP and CWG peripheral set in the 1845x family (vsPIC16F18455-I/SP)
- Doubled RAM vs the 18445/18446 reduced-memory siblings (vsPIC16F18446-I/SP)
- Newer-generation CWG over the PIC16F18346 (vsPIC16F18346-I/SP)
Ghi chú thiết kế
Estimated: At 32 MHz with VDD=3.3V, the PIC16F18456-I/SP active current is approximately 3-5 mA depending on peripheral activity. For battery-powered designs, sleep current dominates long-term energy budget. XLP sleep modes (Retention-only RAM) draw < 100 nA typical, enabling multi-year coin-cell operation with proper wake-on-peripheral configuration. Always add a 0.1 uF decoupling capacitor within 5 mm of VDD pin and a bulk 10 uF on the supply rail to suppress MCU switching transients.
Place analog VDD/VSS (AVDD/AVSS) decoupling capacitors as close to those pins as possible, even if AVDD is tied to VDD - stray impedance degrades 12-bit ADCC noise performance. The 28-SPDIP package has generous pin spacing (2.54 mm pitch) easing hand wiring for prototypes and educational kits, but signals should still be routed with care to avoid cross-coupling on adjacent ADC channels. Keep digital switching lines (PWM, EUSART clocks) physically separate from sensitive analog traces.
Common pitfalls: (1) ICSPCLK/ICSPDAT (RB6/RB7) are shared with general-purpose GPIO - if these pins are repurposed, ensure ICSP programming remains accessible via resistors or test points for production flash programming. (2) Configuring VREF+ on RA3 disables analog reads on that pin - check the PPS (Peripheral Pin Select) assignment in the configuration bits before locking firmware. (3) The internal 32 MHz oscillator needs a calibration step at runtime; external crystal needed only when USB or accurate EUSART baud rates are required.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Industrial -40C to +85C temperature range; AEC-Q100 not applicable - non-automotive part. See PIC16F18456-I/SP automotive-grade part numbers for AEC-Q100 options if needed.
