PIC16F18875-E/P - 8-bit 32MHz 14KB Flash MCU | Microchip | DIP-40
料号： PIC16F18875-E/P ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.65 | $2.65 |
| 10 | $2.42 | $24.20 |
| 100 | $2.18 | $218.00 |
| 500 | $1.95 | $975.00 |
| 1,000 | $1.74 | $1,740.00 |
PIC16F18875-E/P 概述
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, and peripherals on one die. The PIC16F18875 belongs to the Microchip PIC mid-range family: PIC microcontroller -> 8-bit MCU -> embedded controller -> semiconductor. It is optimized for deterministic, low-power control tasks where advanced DSP or 32-bit performance is unnecessary.
Key features include 1 KB of SRAM, 256 bytes of EEPROM, integrated CIP blocks such as CRC/SCAN, Hardware Limit Timer (HLT), and CWG/NCO/DSM peripherals, plus multiple communication interfaces (UART, SPI, I2C). The XLP technology delivers low sleep current, making the device suitable for battery-powered sensor and IoT applications. The 40-pin PDIP package simplifies prototyping and breadboarding while supporting a wide operating voltage range from 2.3 V to 5.5 V.
The architecture combines an 8-bit RISC-style enhanced mid-range core with a 14-bit instruction word, three 16-bit timers, and a 10-bit ADC with computation, supporting automated sensor measurements and threshold-based wake-up. The Functional Safety (FuSa) documentation package assists customers building IEC 61508 and ISO 26262 systems, allowing a single platform to serve industrial and automotive end products.
Typical applications include low-power IoT sensor nodes, battery-powered home automation, industrial control modules, LED lighting controllers, and consumer appliance interfaces. The DIP-40 form factor is especially popular in education, hobbyist, and prototype designs.
When designing with this MCU, ensure the MCLR pin is properly pulled up and decoupling capacitors (100 nF and 10 µF) are placed close to VDD/AVDD/VBAT pins. For low-power operation, take advantage of the XLP sleep modes and configure peripherals to remain inactive when not needed.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
直接替换替代料： PIC16F18875-E/P ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC16F18875-E/P （相同外形与封装尺寸） ——差异在于 Package, ADC, Operating Temperature, Mounting Type, Core Architecture.
快速对比工具——选择替代料号进行并排对比：
PIC16F18875-I/P
✅ 直接替换📋 参考替代料（不在目录中）
PIC16F18855-E/P
✅ 直接替换📋 参考替代料（不在目录中）
PIC16F18876-E/P
✅ 直接替换✓ 有现货
$2.04 / 个
查看数据手册 →PIC16F18877-E/P
✅ 直接替换📋 参考替代料（不在目录中）
PIC16LF18875-I/P
✅ 直接替换✓ 有现货
$1.38 / 个
查看数据手册 →PIC16F18875-E/MV
✅ 直接替换✓ 有现货
$1.05 / 个
查看数据手册 →PIC16F18875-E/P 最大额定值与电气特性
| Core Processor | PIC 8-bit enhanced mid-range |
| Core Size | 8-Bit |
| Program Memory Size | 14 KB (8K x 14 words) FLASH |
| RAM Size | 1 KB |
| EEPROM Size | 256 Bytes |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 2.3 V to 5.5 V |
| Number of I/O Pins | 36 |
| 封装 | 40-pin PDIP (DIP-40) |
| 安装类型 | Through-Hole |
| 工作温度 | -40 C to +125 C |
| Program Memory Type | Flash |
| Connectivity | I2C, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT, CIP (CRC/SCAN, HLT, CWG, NCO, DSM) |
| Functional Safety (FuSa) | Supported (documentation package) |
| Low-Power Technology | XLP (eXtreme Low Power) |
| RoHS 状态 | Compliant |
| Lead-Free | Yes |
PIC16F18875-E/P 引脚配置
| 引脚 1 | MCLR — Master Clear (active-low reset) - requires external pull-up |
| 引脚 2 | RA0 — Port A bit 0 / analog input |
| 引脚 3 | RA1 — Port A bit 1 / analog input |
| 引脚 4 | RA2 — Port A bit 2 / analog input |
| 引脚 5 | RA3 — Port A bit 3 / analog input |
| 引脚 6 | RA4 — Port A bit 4 / analog input |
| 引脚 7 | RA5 — Port A bit 5 / analog input |
| 引脚 8 | RA6 — Port A bit 6 / oscillator |
| 引脚 9 | RA7 — Port A bit 7 / oscillator |
| 引脚 10 | RE0 — Port E bit 0 |
| 引脚 11 | VDD — Positive supply voltage (2.3V to 5.5V) |
| 引脚 12 | VSS — Ground reference |
| 引脚 13 | OSC1 — Oscillator input / external clock |
| 引脚 14 | OSC2 — Oscillator output |
| 引脚 15 | RC0 — Port C bit 0 |
| 引脚 16 | RC1 — Port C bit 1 |
| 引脚 17 | RC2 — Port C bit 2 |
| 引脚 18 | RC3 — Port C bit 3 / SCL |
| 引脚 19 | RC4 — Port C bit 4 / SDA |
| 引脚 20 | RC5 — Port C bit 5 |
| 引脚 21 | RC6 — Port C bit 6 / TX |
| 引脚 22 | RC7 — Port C bit 7 / RX |
| 引脚 23 | RD0 — Port D bit 0 |
| 引脚 24 | RD1 — Port D bit 1 |
| 引脚 25 | RD2 — Port D bit 2 |
| 引脚 26 | RD3 — Port D bit 3 |
| 引脚 27 | RD4 — Port D bit 4 |
| 引脚 28 | RD5 — Port D bit 5 |
| 引脚 29 | RD6 — Port D bit 6 |
| 引脚 30 | RD7 — Port D bit 7 |
| 引脚 31 | VSS — Ground reference |
| 引脚 32 | VDD — Positive supply voltage (2.3V to 5.5V) |
| 引脚 33 | RB0 — Port B bit 0 / interrupt-on-change |
| 引脚 34 | RB1 — Port B bit 1 / interrupt-on-change |
| 引脚 35 | RB2 — Port B bit 2 / interrupt-on-change |
| 引脚 36 | RB3 — Port B bit 3 / interrupt-on-change |
| 引脚 37 | RB4 — Port B bit 4 / interrupt-on-change |
| 引脚 38 | RB5 — Port B bit 5 / interrupt-on-change |
| 引脚 39 | RB6 — Port B bit 6 / ICSCLK |
| 引脚 40 | RB7 — Port B bit 7 / ICSDAT |
典型应用
PIC16F18875-E/P 适用于 6 应用s: Low-Power IoT Sensor Node, Industrial Control Module, LED Lighting Controller, Consumer Appliance Interface, Educational & Hobbyist Prototyping, Automotive Body Electronics.
Low-Power IoT Sensor Node
The PIC16F18875-E/P is ideal for battery-powered IoT sensor nodes thanks to its eXtreme Low Power (XLP) technology with sub-µA sleep current and 14 KB Flash for application code. With 32 MHz CPU speed and integrated 10-bit ADC with computation (ADC2), it can directly interface analog sensors such as temperature, humidity, and gas detectors. The on-chip CIP peripherals (CRC/SCAN, HLT) enable autonomous threshold detection and event-driven wake-up without CPU intervention, dramatically extending battery life on a single coin cell to years.
推荐
Industrial Control Module
For industrial control modules, the PIC16F18875-E/P provides 36 GPIO pins, multiple communication interfaces (UART, SPI, I2C), and Functional Safety (FuSa) documentation supporting IEC 61508 SIL 2 designs. The 40-pin PDIP package simplifies field serviceability and replacement. With 2.3V-5.5V operation and -40C to +125C temperature range, the device handles factory-floor environments and 24V industrial bus systems when paired with appropriate isolation. The CRC/SCAN peripheral ensures memory integrity for safety-critical firmware.
推荐
LED Lighting Controller
The PIC16F18875-E/P excels in LED lighting controllers thanks to its on-chip Complementary Waveform Generator (CWG), Numerically Controlled Oscillator (NCO), and DSM peripherals that enable high-resolution PWM dimming without CPU overhead. The 14-bit PWM resolution and 32 MHz clock deliver smooth dimming curves down to 0.01% intensity, suitable for architectural and horticultural lighting. With XLP technology, battery-powered portable LED fixtures achieve weeks of runtime per charge cycle.
推荐
Consumer Appliance Interface
For consumer appliance interfaces (washing machines, microwaves, coffee makers), the PIC16F18875-E/P offers the right balance of compute performance, I/O count, and low cost. Its 36 GPIO pins directly drive 7-segment displays, keypads, and relays without external expanders. The on-chip EUSART supports LIN bus for appliance networking, while XLP modes reduce standby power below 0.1 W to meet energy efficiency regulations. EEPROM emulation supports user setting retention without external memory.
推荐
Educational & Hobbyist Prototyping
The PIC16F18875-E/P in 40-pin PDIP is purpose-built for educational and hobbyist prototyping on breadboards and through-hole PCBs. Its wide 2.3V-5.5V range tolerates imperfect lab power supplies, while the 14 KB Flash holds complete projects including bootloader and application. Microchip's MPLAB X IDE with XC8 compiler provides a free development environment, and the PICkit 4 programmer supports in-circuit debugging for student projects. The DIP-40 package is forgiving of wiring errors and easy to socket.
推荐
Automotive Body Electronics
In automotive body electronics such as lighting modules, seat controllers, and climate panels, the PIC16F18875-E/P offers FuSa documentation and an extended temperature range up to +125C. The PWM, CWG, and NCO peripherals enable motor control and LED dimming, while EUSART and SPI connect to body-domain networks. For full AEC-Q100 compliance in under-hood applications, Microchip offers the PIC16F18875T-I/PT automotive-qualified variant in TQFP-44 packaging with the same peripheral set.
推荐
推荐产品汇总
工程参考数据： PIC16F18875-E/P ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC16F18875-I/P | PIC16F18855-E/P | PIC16F18876-E/P | PIC16F18877-E/P | PIC16LF18875-I/P |
|---|---|---|---|---|---|---|
| Package | PDIP-40 | PDIP-40 - same | PDIP-40 - same | PDIP-40 - same | PDIP-40 - same | PDIP-40 - same |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Flash Memory | 14 KB | 14 KB | 14 KB | 28 KB | 56 KB | 14 KB |
| RAM | 1 KB | 1 KB | 1 KB | 2 KB | 4 KB | 1 KB |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 2.3V to 5.5V | 2.3V to 5.5V | 2.3V to 5.5V | 2.3V to 5.5V | 2.3V to 5.5V | 1.8V to 3.6V |
| Temperature Grade | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) |
| Number of I/O Pins | 36 | 36 | 36 | 36 | 36 | 36 |
| Unit Price (1pc) | $2.65 | $2.50 | $2.40 | $2.85 | $3.10 | $2.55 |
关键差异点
- Highest Flash density in PDIP-40 family at lowest price （对比 PIC16F18855-E/P)
- Optimal balance of cost and memory （对比 PIC16F18877-E/P)
- Standard voltage range vs LF variant （对比 PIC16LF18875-I/P)
设计说明
Place a 100 nF decoupling capacitor as close as possible to each VDD pin (11 and 32) and a 10 µF bulk capacitor at the MCU power entry point. For battery applications, add a 10 µF reservoir capacitor at VBAT if used. The PIC16F18875-E/P draws under 1 µA in XLP sleep mode with RTCC running, but peak current during 32 MHz operation can reach 8 mA, so the decoupling network must supply instantaneous current without VDD droop.
The 40-pin PDIP package has 0.600 inch (15.24 mm) row spacing for through-hole mounting. Ensure adequate clearance around the MCU for ICSP programming header (pin 1 MCLR, pin 39 ICSCLK, pin 40 ICSDAT, VDD, VSS). Route analog signals (RAx, RE0) away from digital switching traces, and place the AVDD/VSS analog supply pins with their own ferrite-bead-isolated supply if precision ADC readings are required.
Do not leave the MCLR pin floating - it requires an external 10 kΩ pull-up to VDD, otherwise spurious resets may occur. Configure unused I/O pins as outputs low to minimize current leakage. When migrating from PIC16F877A to PIC16F18875-E/P, note that the peripheral register map differs significantly; use MCC (MPLAB Code Configurator) to regenerate initialization code rather than copying legacy configuration bits.
When using the EUSART at 115200 baud or higher, route the TX/RX traces as short as possible with ground reference on adjacent layers. For SPI communication above 4 MHz, add 22-33 Ω series resistors near the source to dampen reflections. The I2C bus requires pull-up resistors (typically 4.7 kΩ at 100 kHz, 2.2 kΩ at 400 kHz) on SCL/SDA, calculated based on total bus capacitance.
合规信息
RoHS and lead-free compliance per Microchip product page. AEC-Q100 not qualified for this industrial-grade variant; Microchip offers PIC16F18875T-I/PT (AEC-Q100) for automotive applications. Halogen-free status not explicitly stated in the verified web data.
