PIC16F18877T-I/PT - 8-Bit 32MHz 56KB Flash MCU | Microchip
料号： PIC16F18877T-I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $4.2 | $4.20 |
| 10 | $3.85 | $38.50 |
| 100 | $3.3 | $330.00 |
| 500 | $2.85 | $1,425.00 |
| 1,000 | $2.5 | $2,500.00 |
PIC16F18877T-I/PT 概述
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash), data memory (RAM), and peripherals such as timers, ADCs, and communication interfaces. The PIC16F18877 belongs to the PIC16F1885x/7X family, which extends the broader PIC16 8-bit architecture from Microchip into the eXtreme Low Power (XLP) and Functional Safety (FuSa) product lines. Within the technology tree, an 8-bit MCU sits below 16-bit MCUs (PIC24, dsPIC33), 32-bit Cortex-M0/M4 devices, and application processors in terms of computational throughput, but it remains the workhorse for cost-sensitive, deterministic, low-power embedded control.
Key features that distinguish this part include 56 KB (32K x 14) of self-programmable Flash for field updates, hardware CRC/SCAN for functional-safety diagnostics, Peripheral Pin Select (PPS) for flexible signal routing, Core Independent Peripherals (CIPs) such as CWG, NCO, DSM, and CCP, plus XLP technology with nanoWatt sleep currents. According to Microchip's PIC16F18877 product page, the family supports both general-purpose and low-power applications through analog-rich integration and a rich set of communication peripherals.
The PIC16F18877T-I/PT uses the enhanced mid-range 8-bit CPU core with a hardware multiplier and a 14-bit instruction word, yielding deterministic throughput. The 32 MHz oscillator drives a 4-clock-per-instruction pipeline, providing 8 MIPS sustained performance while retaining the PIC instruction set that supports both assembler and C (XC8) development. The 10-bit ADC is paired with a Computation Accumulator for hardware-averaged sensor reads.
Typical applications include industrial sensor nodes, IoT edge devices, home appliance control, motor control loops, LED lighting controllers, and battery-powered instruments. Designers choose this part for applications where 8-bit determinism, low sleep current, and a rich CIP peripheral set outweigh the need for higher CPU throughput.
When designing with this device, allocate sufficient PCB area for the TQFP-44 footprint and plan programming/debug connections through PICKit or MPLAB ICD headers; the device supports in-circuit serial programming (ICSP). Also confirm the desired temperature grade (the "-I" suffix specifies industrial -40C to +85C).
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet to accelerate your sourcing and design decisions.
直接替换替代料： PIC16F18877T-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： PIC16F18877T-I/PT （相同外形与封装尺寸） ——差异在于 ADC, Package, Mounting Type, Program Memory (Flash), Communication.
快速对比工具——选择替代料号进行并排对比：
PIC16F18877-I/PT
✅ 直接替换✓ 有现货
$2.18 / 个
查看数据手册 →PIC16F18877-E/PT
✅ 直接替换✓ 有现货
$1.08 / 个
查看数据手册 →PIC16F18857T-I/PT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
PIC16F18855T-I/PT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
PIC16F1527T-I/PT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.16 / 个
查看数据手册 →PIC16F18877T-I/PT 最大额定值与电气特性
| Core Architecture | 8-bit PIC16 enhanced mid-range |
| CPU Clock Speed | 32 MHz |
| Instruction Throughput | 8 MIPS |
| Program Memory (Flash) | 56 KB (32K x 14 words) |
| Data EEPROM | 256 B |
| ADC | 10-bit |
| Communication Interfaces | SPI, I2C |
| 封装 | TQFP-44 (PT) 10x10 mm |
| 安装类型 | Surface Mount |
| Temperature Grade | Industrial -40C to +85C (I) |
| Packaging Form | Tape & Reel (T) |
| Technology Family | PIC16F1885X/7X with XLP and Functional Safety (FuSa) |
| RoHS 状态 | Compliant |
PIC16F18877T-I/PT 引脚配置
| 引脚 1 | VDD — Positive power supply |
| 引脚 2 | RA5 — I/O port A bit 5 |
| 引脚 3 | RA4 — I/O port A bit 4 |
| 引脚 4 | RA3 — I/O port A bit 3 |
| 引脚 5 | RA2 — I/O port A bit 2 |
| 引脚 6 | RA1 — I/O port A bit 1 |
| 引脚 7 | RA0 — I/O port A bit 0 |
| 引脚 8 | VSS — Ground reference |
| 引脚 9 | OSC1/RA7 — External oscillator input or I/O |
| 引脚 10 | OSC2/RA6 — External oscillator output or I/O |
| 引脚 11 | RC0 — I/O port C bit 0 |
| 引脚 12 | RC1 — I/O port C bit 1 |
| 引脚 13 | RC2 — I/O port C bit 2 |
| 引脚 14 | RC3 — I/O port C bit 3 |
| 引脚 15 | RC4 — I/O port C bit 4 |
| 引脚 16 | RC5 — I/O port C bit 5 |
| 引脚 17 | RC6 — I/O port C bit 6 |
| 引脚 18 | RC7 — I/O port C bit 7 |
| 引脚 19 | VSS — Ground reference |
| 引脚 20 | VDD — Positive power supply |
| 引脚 21 | RB0 — I/O port B bit 0 |
| 引脚 22 | RB1 — I/O port B bit 1 |
| 引脚 23 | RB2 — I/O port B bit 2 |
| 引脚 24 | RB3 — I/O port B bit 3 |
| 引脚 25 | RB4 — I/O port B bit 4 |
| 引脚 26 | RB5 — I/O port B bit 5 |
| 引脚 27 | RB6 — I/O port B bit 6 / ICSP clock |
| 引脚 28 | RB7 — I/O port B bit 7 / ICSP data |
| 引脚 29 | RD0 — I/O port D bit 0 |
| 引脚 30 | RD1 — I/O port D bit 1 |
| 引脚 31 | RD2 — I/O port D bit 2 |
| 引脚 32 | RD3 — I/O port D bit 3 |
| 引脚 33 | RD4 — I/O port D bit 4 |
| 引脚 34 | RD5 — I/O port D bit 5 |
| 引脚 35 | RD6 — I/O port D bit 6 |
| 引脚 36 | RD7 — I/O port D bit 7 |
| 引脚 37 | RE0 — I/O port E bit 0 |
| 引脚 38 | RE1 — I/O port E bit 1 |
| 引脚 39 | RE2 — I/O port E bit 2 |
| 引脚 40 | RE3 — I/O port E bit 3 / MCLR |
| 引脚 41 | VSS — Ground reference |
| 引脚 42 | RF0 — I/O port F bit 0 |
| 引脚 43 | RF1 — I/O port F bit 1 |
| 引脚 44 | RF2 — I/O port F bit 2 |
典型应用
PIC16F18877T-I/PT 适用于 7 应用s: Industrial Sensor Nodes, IoT Edge Devices, Home Appliance Control, Motor Control Loops, LED Lighting Controllers, Battery-Powered Instruments, Automotive Body Electronics.
Industrial Sensor Nodes
The PIC16F18877T-I/PT's 56 KB Flash comfortably hosts MODBUS RTU or IO-Link sensor stacks, while its 10-bit ADC paired with the Computation Accumulator provides hardware-averaged analog reads. The Core Independent Peripherals (CIPs) handle PWM, timing, and signal conditioning without CPU intervention, enabling low-latency sensor sampling. Industrial -40C to +85C temperature grade supports factory-floor deployments where ambient swings are common. XLP nanoWatt sleep currents below 1 uA extend battery life in remote sensor installations, and the TQFP-44 package fits compact IP65 enclosures.
推荐
IoT Edge Devices
IoT edge devices benefit from the PIC16F18877T-I/PT's XLP sleep currents (under 1 uA in deep sleep) which extend coin-cell or Li-Po battery life to multi-year ranges. The 56 KB Flash accommodates a Zigbee or BLE host driver plus a sensor application layer. Hardware CRC/SCAN supports functional safety diagnostics for safety-critical edge nodes such as smoke detectors. PPS pin mapping simplifies PCB routing when the module antenna and connector constraints force non-trivial pin assignments.
推荐
Home Appliance Control
Washing machines, dishwashers, and microwave ovens rely on the PIC16F18877T-I/PT for deterministic 8-bit control of motors, valves, displays, and user keypads. The CIP peripheral set includes Complementary Waveform Generator (CWG) and Numerically Controlled Oscillator (NCO) for motor drive support without CPU overhead. The 56 KB Flash holds appliance firmware plus a bootloader for OTA-style field updates. Industrial temperature grade and robust ESD performance make it well-suited for white-goods reliability requirements.
推荐
Motor Control Loops
Sensorless BLDC and stepper motor control benefit from the PIC16F18877T-I/PT's high-resolution PWM (up to 10 ns resolution via CWG) and fast interrupt response. The 32 MHz CPU clock provides 8 MIPS sustained throughput, sufficient for 4 kHz commutation loops with headroom for housekeeping. The 10-bit ADC samples back-EMF or current-sense signals while the NCO drives complementary PWM channels with hardware dead-band insertion. Tape & Reel packaging supports automated motor controller assembly lines.
推荐
LED Lighting Controllers
The PIC16F18877T-I/PT drives multi-channel LED strings via its CWG and CCP peripherals, generating precise PWM dimming at frequencies that avoid flicker in human-perceptible ranges. With 56 KB Flash, designers can implement DMX-512, DALI, or 0-10V dimming protocols alongside temperature monitoring. Core Independent Peripherals execute color-mixing algorithms while the CPU sleeps, reducing quiescent draw. The TQFP-44 footprint fits into compact LED driver PCBs.
推荐
Battery-Powered Instruments
Handheld meters, environmental monitors, and portable medical devices leverage the PIC16F18877T-I/PT's nanoWatt sleep technology to deliver multi-year battery life on coin cells or 2x AA alkaline. The 10-bit ADC with internal voltage reference supports accurate battery monitoring, and the 56 KB Flash stores user calibration tables plus measurement logs. Hardware CRC and Flash ECC maintain data integrity across long field deployments.
推荐
Automotive Body Electronics
Although the PIC16F18877T-I/PT (industrial grade) is not AEC-Q100 qualified, its sibling PIC16F18877T-I/PT-VAO or -Q variants are designed for body-electronics applications including lighting control modules, mirror positioning, and seat controllers. The CIP peripheral set handles LIN-like protocol bit-banging, PWM-driven LED tail lamps, and brushed DC motor commutation. The robust ESD ratings and -40C to +85C operating range match body-electronics thermal environments.
推荐
推荐产品汇总
工程参考数据： PIC16F18877T-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 | PIC16F18877-I/PT | PIC16F18877-E/PT | PIC16F18857T-I/PT | PIC16F18855T-I/PT | PIC16F1527T-I/PT |
|---|---|---|---|---|---|---|
| Package | TQFP-44 (PT) 10x10 mm | TQFP-44 (PT) 10x10 mm - same | TQFP-44 (PT) 10x10 mm - same | TQFP-44 (PT) 10x10 mm - same | TQFP-44 (PT) 10x10 mm - same | TQFP-44 (PT) 10x10 mm - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 56 KB | 56 KB | 56 KB | 28 KB (-50%) | 14 KB (-75%) | 14 KB (-75%) |
| CPU Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 20 MHz (-37%) |
| Temperature Grade | Industrial -40C to +85C | Industrial -40C to +85C | Extended -40C to +125C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C |
| Packaging Form | Tape & Reel | Tray | Tray | Tape & Reel | Tape & Reel | Tape & Reel |
| Functional Safety (FuSa) | Yes | Yes | Yes | Yes | Yes | No |
| CIP Peripherals | CWG, NCO, DSM, CCP | CWG, NCO, DSM, CCP - same | CWG, NCO, DSM, CCP - same | CWG, NCO, DSM, CCP - same | CWG, NCO, DSM, CCP - same | Limited (no DSM) |
关键差异点
- Industry-leading 56 KB Flash within the PIC16F1887X family （对比 PIC16F18855T-I/PT)
- Industrial Tape & Reel packaging form factor for SMT lines （对比 PIC16F18877-I/PT)
- Functional Safety (FuSa) peripherals for safety-critical designs （对比 PIC16F1527T-I/PT)
设计说明
Estimated: At 32 MHz active and 5V VDD, the PIC16F18877T-I/PT typical active current is approximately 7 mA; in deep sleep with XLP this falls below 1 uA. For battery-powered designs, use the PPS feature to wake the CPU only on a peripheral interrupt (e.g. RTC alarm or ADC threshold) and return to sleep in the ISR tail. Decoupling requires a 100 nF ceramic capacitor placed within 3 mm of each VDD pin pair, with a bulk 1-10 uF tantalum or ceramic on the main supply rail.
Route ICSP signals PGC and PGD to a 2x3 or 1x6 header accessible from the board edge for in-circuit programming and debugging. Keep the ICSP traces short and protected from the main switching nodes if the design includes a power stage. The TQFP-44 footprint requires a 10x10 mm land pattern with 0.8 mm pitch; place the thermal pad to a star-grounded copper pour for improved EMI performance.
Do not confuse PIC16F18877T-I/PT (industrial -40C to +85C, Tape & Reel) with PIC16F18877-E/PT (extended -40C to +125C, tray) or PIC16F18877-I/P (PDIP-40 package, different footprint). When migrating between TQFP and QFN variants, verify pin 1 orientation carefully - TQFP pin 1 is at the top-left dot marker, while QFN pin 1 may differ. Confirm that the chosen PICkit or ICD debugger supports the PIC16F1887X family (MPLAB X IDE 5.30+ recommended).
For SPI buses operating above 4 MHz, add 33-ohm series resistors near the source pin to dampen reflections on cables longer than 50 mm. For I2C buses, ensure pull-up resistors are sized for the total capacitance: 4.7 kohm at 100 kHz with up to 200 pF bus capacitance, falling to 2.2 kohm at 400 kHz. Use the Peripheral Pin Select (PPS) feature to assign peripheral functions to convenient pins, freeing up ADC-capable pins for analog inputs.
合规信息
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - this part targets industrial applications. For automotive-grade variants, look for PIC16F18877T-I/PT-VAO or -Q suffix parts. Halogen-free status not explicitly listed in provided data.