PIC16F18877-I/PT - 56KB Flash 8-bit MCU, 44-TQFP | Microchip
料号： PIC16F18877-I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.74 | $3.74 |
| 10 | $3.36 | $33.60 |
| 100 | $2.81 | $281.00 |
| 500 | $2.46 | $1,230.00 |
| 1,000 | $2.18 | $2,180.00 |
PIC16F18877-I/PT 概述
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash/ROM), data memory (RAM/EEPROM), and integrated peripherals such as ADC, timers, communication interfaces, and I/O ports. The PIC16F18877 belongs to the Microchip 8-bit PIC16 family, sits above the PIC10/PIC12/PIC14 entry-level series, and below the 16-bit dsPIC/PIC24 and 32-bit PIC32 families in the broader PIC microcontroller taxonomy.
Key features include 56 KB (32K x 14) self-programmable Flash, 4 KB SRAM, 256 bytes EEPROM, a 10-bit ADC with up to 43 channels, two comparators, two DACs, four 8/16-bit timers, two CCP modules, two 16-bit PWM modules, EUSART, two SPI/I2C interfaces, and a 32 MHz internal oscillator. Functional safety features include CRC/SCAN, HLT (Hardware Limit Timer), windowed watchdog, and memory scan support.
The architecture uses a 14-bit instruction word with an enhanced mid-range core, nanoWatt XLP technology for sleep currents below 50 nA typical, and idle/doze modes. The device operates from 1.8V to 5.5V (F version) and includes peripheral pin select (PPS) for flexible signal routing.
Typical applications include IoT sensor nodes, wearable devices, home appliances, low-power wireless HMI, functional safety consumer products, and general-purpose embedded control. The combination of low power, large memory, rich analog, and CIPs makes it well suited for battery powered designs.
Design consideration: The 44-TQFP footprint is suitable for hand soldering with appropriate pitch and a fine-tip iron, but production assembly should use reflow profiles per J-STD-020. Decoupling: place 100 nF near each VDD pin and a bulk 10 uF near the regulator output.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer datasheet. For information beyond the spec table, see Design Notes and Applications sections.
直接替换替代料： PIC16F18877-I/PT ——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： PIC16F18877-I/PT （相同外形与封装尺寸） ——差异在于 ADC, Package, Core, DAC, Program Memory (Flash).
快速对比工具——选择替代料号进行并排对比：
PIC16F18877-I/P
✅ 直接替换✓ 有现货
$2.25 / 个
查看数据手册 →PIC16F18876-I/PT
✅ 直接替换✓ 有现货
$1.48 / 个
查看数据手册 →PIC16F18876T-I/MV
✅ 直接替换✓ 有现货
$1.92 / 个
查看数据手册 →PIC16F18875-I/PT
✅ 直接替换✓ 有现货
$1.22 / 个
查看数据手册 →PIC16F18855-I/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC16F18855-I/MV
✅ 直接替换✓ 有现货
$1.22 / 个
查看数据手册 →PIC16F18877-I/PT 最大额定值与电气特性
| Core | PIC16 8-bit enhanced mid-range |
| Family | PIC16F1885X/7X (XLP, Functional Safety) |
| Program Memory (Flash) | 56 KB (32K x 14 words) |
| Data Memory (SRAM) | 4 KB |
| EEPROM | 256 bytes |
| Maximum CPU Frequency | 32 MHz |
| Instruction Word | 14-bit |
| Operating Voltage | 1.8 V to 5.5 V |
| I/O Pins | 36 (typical) |
| ADC | 10-bit, up to 43 channels |
| DAC | 2 x 5-bit |
| Comparators | 2 |
| Timers | 4 x 8/16-bit |
| PWM | 2 x 16-bit + 2 x CCP |
| Communication | EUSART, 2 x SPI, 2 x I2C |
| 封装 | 44-pin TQFP (10x10 mm) |
| 工作温度 | -40 C to +85 C (Industrial) |
| 安装类型 | Surface Mount |
| MSL 等级 | 3 (168 hours) |
| RoHS 状态 | Compliant |
PIC16F18877-I/PT 44-pin tqfp (10x10 mm) 引脚配置指南
PIC16F18877-I/PT（44-pin tqfp (10x10 mm) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： PIC16F18877-I/PT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
PIC16F18877-I/PT 适用于 6 应用s: Battery-Powered IoT Sensor Node, Functional-Safety Household Appliance, Wearable Fitness/Health Tracker, Industrial Sensor Transmitter (4-20 mA), Smart Home HMI and Touch Control, Automotive Body and Comfort Module.
Battery-Powered IoT Sensor Node
The PIC16F18877-I/PT is well suited for battery-powered IoT sensor nodes due to its nanoWatt XLP technology, which delivers typical sleep currents below 50 nA with retention RAM intact. The 56 KB Flash supports over-the-air firmware update payloads and complex sensor fusion algorithms, while the 10-bit ADC with up to 43 channels allows direct interface to multiple analog sensors (temperature, humidity, gas) without an external mux. The integrated EUSART and dual SPI/I2C interfaces provide flexible connectivity to LoRa, sub-GHz transceivers, or BLE modules. At 32 MHz operation, the device can execute sensor reads and local processing at sub-mA active currents, extending coin-cell battery life to multiple years in duty-cycled designs.
推荐
Functional-Safety Household Appliance
The PIC16F18877-I/PT integrates functional safety features (CRC/SCAN, hardware limit timer HLT, windowed watchdog) that simplify IEC 60730 Class B compliance for household appliances like washing machines, dishwashers, and microwave ovens. The 56 KB Flash supports the safety library and self-test routines, while the dual comparators enable redundant protection for motor overcurrent and overtemperature. Its 1.8-5.5 V operation matches the typical 5 V and 3.3 V rails in appliance designs. The 44-TQFP package is compatible with both hand-soldered prototyping and high-volume reflow assembly on industry-standard 1.6 mm or 2-layer FR-4 PCBs.
推荐
Wearable Fitness/Health Tracker
The PIC16F18877-I/PT fits wearable fitness and health trackers because of its XLP sleep modes, integrated 10-bit ADC for biometric sensor reads (heart rate, SpO2 via analog front end), and small 44-TQFP footprint compatible with compact rigid-flex PCB designs. The peripheral pin select (PPS) routes EUSART, SPI, and I2C to any GPIO, simplifying PCB layout under tight space constraints. With 4 KB SRAM it can buffer sensor data between BLE transmissions, while the 2 CCP and 2 PWM modules drive vibration motors and LED indicators for user feedback. The industrial -40 C to +85 C temperature range supports outdoor and active-user scenarios.
推荐
Industrial Sensor Transmitter (4-20 mA)
The PIC16F18877-I/PT drives industrial 4-20 mA current-loop sensor transmitters by combining its 10-bit ADC for bridge-sensor linearization with its PWM output and op-amp loop to set the loop current. Its industrial -40 C to +85 C temperature range and 1.8-5.5 V operation support 24 V loop-powered designs after regulation. The 56 KB Flash enables on-device calibration tables, linearization math, and HART or IO-Link communication stacks via the EUSART. Functional safety features (CRC/SCAN, windowed WDT) improve reliability in process control environments where silent failures are unacceptable.
推荐
Smart Home HMI and Touch Control
The PIC16F18877-I/PT powers smart-home human-machine interfaces (HMIs) such as touch keypads, dimmers, and fan controllers. Its 10-bit ADC with up to 43 channels multiplexes multiple capacitive or resistive touch pads via external charge-sharing circuitry. The dual PWM outputs drive TRIACs or FETs for AC phase-angle or DC motor speed control. With 56 KB Flash the device can run Microchip's mTouch libraries, a Z-Wave or Bluetooth Low Energy host stack, and a full state machine for UI feedback. The 32 MHz CPU executes complex touch algorithms and UI updates within sub-1 ms frames.
推荐
Automotive Body and Comfort Module
The PIC16F18877-I/PT -VAO suffix variant supports automotive body and comfort applications such as interior lighting, seat controllers, mirror adjusters, and HVAC blend-door actuators. Its 32 MHz performance handles LIN-bus communication, PWM-driven LED drivers, and motor control loops in real time. Functional safety features and the wide 1.8-5.5 V supply range (compatible with automotive 12 V systems after regulation) suit AEC-Q100 Grade 3 environments. The 44-TQFP package supports high-density PCB designs and high-volume reflow assembly. For mission-critical powertrain applications, choose dsPIC33 or PIC18 derivatives with higher temperature grades.
推荐
推荐产品汇总
工程参考数据： PIC16F18877-I/PT ——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 | PIC16F18876-I/PT | PIC16F18875-I/PT | PIC16F18855-I/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same |
| Flash Memory | 56 KB | 28 KB (-50%) | 14 KB (-75%) | 28 KB (-50%) |
| SRAM | 4 KB | 4 KB - same | 2 KB (-50%) | 2 KB (-50%) |
| EEPROM | 256 bytes | 256 bytes - same | 256 bytes - same | 256 bytes - same |
| Functional Safety (CRC/SCAN, HLT) | Yes | Yes | No | No |
| ADC Channels | 10-bit, 43 channels | 10-bit, 43 channels - same | 10-bit, 43 channels - same | 10-bit, 43 channels - same |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V - same | 1.8 V to 5.5 V - same | 1.8 V to 5.5 V - same |
关键差异点
- Largest Flash in PIC16F1887X family at 56 KB （对比 PIC16F18876-I/PT)
- Full functional safety (FuSa) feature set （对比 PIC16F18855-I/PT)
- Maximum RAM (4 KB) in 1885X/7X family （对比 PIC16F18875-I/PT)
设计说明
Estimated: When using sleep mode with watchdog disabled and retention RAM enabled, typical current consumption is below 50 nA at 3.3 V. For accurate figures, refer to the datasheet DC characteristic table across the full -40 C to +85 C temperature range. Place a 100 nF decoupling capacitor within 5 mm of each VDD pin and a 10 uF bulk capacitor near the regulator. Use a low-Iq LDO such as MCP1700 (1.6 uA quiescent) for battery applications to preserve the XLP benefit.
The 44-TQFP package has a 0.8 mm pitch - use IPC-7351 land patterns with NSMD pads for best reflow yield. Place ICSP/ICD pins (PGED/PGEC) at the edge of the PCB with accessible test points to allow in-circuit debugging without removing the MCU. Keep analog traces short and away from switching nodes (PWM outputs) to minimize ADC coupling; consider a ground guard ring around sensitive analog inputs.
Do not assume pin compatibility between -PT (TQFP) and -P (PDIP) packages - they have different pin counts (44 vs 40) and different pin assignments. Verify your firmware fits within 56 KB Flash and 4 KB SRAM before committing to a production BOM. The configuration words must be set correctly to enable the internal oscillator and disable unused peripherals to achieve low sleep current; leaving default brown-out settings may cause unwanted resets in noisy environments.
合规信息
Industrial grade -I/-40 to +85 C. For AEC-Q100 automotive, use -VAO variant. RoHS, REACH, halogen-free per Microchip material declarations.