PIC16F1777-I/ML - 8-Bit MCU, 14KB Flash, 32MHz, 44-QFN | Microchip
料号： PIC16F1777-I/ML ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.92 | $3.92 |
| 10 | $3.62 | $36.20 |
| 100 | $3.24 | $324.00 |
| 500 | $2.85 | $1,425.00 |
| 1,000 | $2.48 | $2,480.00 |
PIC16F1777-I/ML 概述
What is a PIC16F177X microcontroller? It is a member of Microchip's enhanced mid-range 8-bit PIC MCU family, designed for applications that require a balance of deterministic real-time control, intelligent analog integration, and low power consumption through the proprietary eXtreme Low Power (XLP) technology. Within the broader hierarchy, PIC16F177X sits in: PIC microcontroller -> 8-bit MCU -> enhanced mid-range core -> Microchip PIC16 family -> semiconductor. The "XLP" designation means it can enter nanoWatt sleep states for battery-powered designs.
Key features include a 32 MHz internal oscillator (selectable), up to 36 digital I/O pins, four 16-bit timers, two I2C/SPI interfaces, two UART modules, and up to 12 PWM channels. The device integrates sophisticated peripherals such as zero-cross detection, programmable ramp generator, and configurable logic cells, making it well-suited for closed-loop digital power conversion and LED lighting control without external components.
From an architectural standpoint, the PIC16F1777 uses a Harvard RISC architecture with a 14-bit instruction word, providing deterministic interrupt latency and single-cycle instruction execution at 32 MHz (125 ns instruction cycle). The integrated operational amplifiers and DACs allow direct interface to current-sense elements in motor-control and SMPS topologies, reducing external BOM and PCB area.
Typical applications include LED lighting drivers, switched-mode power supplies (SMPS), battery chargers, BLDC and stepper motor control, IoT sensor nodes, and general-purpose embedded control. The device's analog-rich integration is particularly valued in lighting ballasts and fan-control applications. When designing with this part, ensure proper decoupling (100 nF + bulk) near each VDD pin and observe the exposed-pad (EP) PCB layout guidelines of the QFN package for thermal and electrical performance.
直接替换替代料： PIC16F1777-I/ML ——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： PIC16F1777-I/ML （相同外形与封装尺寸） ——差异在于 Package, DAC, ADC, Data EEPROM, MSL Level.
快速对比工具——选择替代料号进行并排对比：
PIC16F1778-I/ML
✅ 直接替换📋 参考替代料（不在目录中）
PIC16F1776-I/ML
✅ 直接替换📋 参考替代料（不在目录中）
PIC16F1768-I/ML
✅ 直接替换✓ 有现货
$1.55 / 个
查看数据手册 →PIC16F1764-I/ML
✅ 直接替换✓ 有现货
$0.87 / 个
查看数据手册 →PIC16F1779-I/ML
✅ 直接替换✓ 有现货
$3.04 / 个
查看数据手册 →PIC16F1777-I/ML 最大额定值与电气特性
| Core Architecture | 8-bit PIC enhanced mid-range (Harvard RISC) |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data EEPROM | 256 bytes |
| Data SRAM | 1 KB |
| Maximum CPU Frequency | 32 MHz |
| Instruction Cycle Time | 125 ns at 32 MHz |
| Operating Voltage (VDD) | 2.3 V to 5.5 V |
| Digital I/O Pins | 36 |
| ADC | 12-bit, up to 28 channels |
| DAC | 10-bit and 5-bit, multiple outputs |
| Operational Amplifiers | On-chip (multiple) |
| Comparators | Multiple on-chip comparators |
| Timers | Four 16-bit timers |
| PWM Channels | Up to 12 |
| Communication Interfaces | 2x UART, 2x I2C/SPI |
| 封装 | 44-pin QFN (8x8 mm) with exposed pad |
| 工作温度 | -40C to +85C (Industrial) |
| Low-Power Technology | XLP (eXtreme Low Power) |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
PIC16F1777-I/ML 引脚配置
| 引脚 1 | RB5 — PORTB I/O bit 5 / ICSP data |
| 引脚 2 | RB4 — PORTB I/O bit 4 / ICSP clock |
| 引脚 3 | RB3 — PORTB I/O bit 3 |
| 引脚 4 | RB2 — PORTB I/O bit 2 |
| 引脚 5 | RB1 — PORTB I/O bit 1 |
| 引脚 6 | RB0 — PORTB I/O bit 0 / interrupt |
| 引脚 7 | VDD — Positive supply voltage |
| 引脚 8 | RA7 — PORTA I/O bit 7 |
| 引脚 9 | RA6 — PORTA I/O bit 6 / oscillator |
| 引脚 10 | RA5 — PORTA I/O bit 5 |
| 引脚 11 | RA4 — PORTA I/O bit 4 |
| 引脚 12 | RA3 — PORTA I/O bit 3 |
| 引脚 13 | RA2 — PORTA I/O bit 2 |
| 引脚 14 | RA1 — PORTA I/O bit 1 |
| 引脚 15 | RA0 — PORTA I/O bit 0 |
| 引脚 16 | VSS — Ground reference |
| 引脚 17 | RC7 — PORTC I/O bit 7 / UART TX |
| 引脚 18 | RC6 — PORTC I/O bit 6 / UART RX |
| 引脚 19 | RC5 — PORTC I/O bit 5 |
| 引脚 20 | RC4 — PORTC I/O bit 4 |
| 引脚 21 | RC3 — PORTC I/O bit 3 / SCL |
| 引脚 22 | RC2 — PORTC I/O bit 2 / SDA |
| 引脚 23 | RC1 — PORTC I/O bit 1 |
| 引脚 24 | RC0 — PORTC I/O bit 0 |
| 引脚 25 | RD7 — PORTD I/O bit 7 |
| 引脚 26 | RD6 — PORTD I/O bit 6 |
| 引脚 27 | RD5 — PORTD I/O bit 5 / PWM |
| 引脚 28 | RD4 — PORTD I/O bit 4 / PWM |
| 引脚 29 | RD3 — PORTD I/O bit 3 |
| 引脚 30 | RD2 — PORTD I/O bit 2 |
| 引脚 31 | RD1 — PORTD I/O bit 1 |
| 引脚 32 | RD0 — PORTD I/O bit 0 |
| 引脚 33 | RE7 — PORTE I/O bit 7 |
| 引脚 34 | RE6 — PORTE I/O bit 6 |
| 引脚 35 | RE5 — PORTE I/O bit 5 |
| 引脚 36 | RE4 — PORTE I/O bit 4 |
| 引脚 37 | RE3 — PORTE I/O bit 3 |
| 引脚 38 | RE2 — PORTE I/O bit 2 |
| 引脚 39 | RE1 — PORTE I/O bit 1 |
| 引脚 40 | RE0 — PORTE I/O bit 0 |
| 引脚 41 | RF7 — PORTF I/O bit 7 |
| 引脚 42 | RF6 — PORTF I/O bit 6 |
| 引脚 43 | RF5 — PORTF I/O bit 5 |
| 引脚 44 | RF4 — PORTF I/O bit 4 |
典型应用
PIC16F1777-I/ML 适用于 6 应用s: LED Lighting Drivers, Switched-Mode Power Supplies (SMPS), BLDC and Stepper Motor Control, Battery Charging Systems, IoT Sensor Nodes, Industrial Control and Sensor Interface.
LED Lighting Drivers
The PIC16F1777-I/ML is ideal for LED lighting drivers thanks to its 32 MHz 8-bit core, up to 12 PWM channels, and integrated operational amplifiers that can directly sense LED current in a closed-loop topology. The on-chip 12-bit ADC samples feedback while the op-amp and reference DAC set the current setpoint, eliminating external analog ICs. Per the Microchip PIC16F1777 datasheet, the XLP sleep modes support standby power below regulatory limits for connected lighting.
推荐
Switched-Mode Power Supplies (SMPS)
In SMPS designs, the PIC16F1777-I/ML's 32 MHz instruction rate, multiple PWMs, and integrated comparators support peak-current-mode control at switching frequencies up to several hundred kHz. The on-chip op-amps condition the current-sense signal directly to the PWM comparator, reducing component count on the secondary side. According to Microchip application literature, the 256-byte vector search with up to 36 I/O simplifies digital-loop SMPS references.
推荐
BLDC and Stepper Motor Control
The PIC16F1777-I/ML drives 3-phase BLDC and bipolar stepper motors via its multiple high-resolution PWM outputs and integrated op-amps for back-EMF sensing. The 32 MHz core handles trapezoidal or FOC commutation at electrical frequencies suitable for small fans, pumps, and appliance motors. Per the PIC16F1777 datasheet, the on-chip comparators provide hardware overcurrent protection with sub-microsecond response for safety-critical motor control.
推荐
Battery Charging Systems
In lithium-ion and lead-acid chargers, the PIC16F1777-I/ML's 12-bit ADC monitors battery voltage and current with high accuracy while its DAC and op-amp generate the CV/CC reference setpoint. The XLP nanoWatt sleep modes between charging cycles reduce quiescent drain to extend shelf life. The 2.3 V to 5.5 V supply range supports single-cell Li-Ion operation with a wide margin for charger IC fault conditions per the PIC16F1777 datasheet.
推荐
IoT Sensor Nodes
The PIC16F1777-I/ML's XLP technology enables battery-powered IoT sensor nodes that sleep below 1 uA while the 32 MHz core wakes to process sensor data via the 12-bit ADC and UART/SPI/I2C links. The 256-byte EEPROM stores calibration constants and the 1 KB RAM supports small protocol stacks. Per the Microchip PIC16F177X datasheet, the integrated analog reduces BOM versus discrete MCU + external op-amp designs in compact IoT form factors.
推荐
Industrial Control and Sensor Interface
For industrial PLC-like control, the PIC16F1777-I/ML's 36 digital I/O, multiple UART/SPI/I2C ports, and 12-bit ADC with up to 28 channels support multi-sensor acquisition in process control and factory automation. The industrial -40C to +85C temperature grade ensures operation in cabinet and field environments. According to the PIC16F1777 datasheet, the deterministic interrupt response of the enhanced mid-range core suits time-critical control loops in industrial applications.
推荐
推荐产品汇总
工程参考数据： PIC16F1777-I/ML ——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 | PIC16F1778-I/ML | PIC16F1776-I/ML | PIC16F1768-I/ML | PIC16F1764-I/ML | PIC16F1779-I/ML |
|---|---|---|---|---|---|---|
| Package | 44-pin QFN (8x8 mm) | 44-pin QFN (8x8) - same | 44-pin QFN (8x8) - same | 44-pin QFN (8x8) - same | 44-pin QFN (8x8) - same | 44-pin QFN (8x8) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | 8-bit PIC16 enhanced mid-range | 8-bit PIC16 enhanced mid-range | 8-bit PIC16 enhanced mid-range | 8-bit PIC16 enhanced mid-range | 8-bit PIC16 enhanced mid-range | 8-bit PIC16 enhanced mid-range |
| Maximum CPU Frequency | 32 MHz | 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 | 2.3 V to 5.5 V |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Unit Price (qty-1, approx) | $3.92 | $4.10 | $3.65 | $3.40 | $2.95 | $4.35 |
关键差异点
- Largest integrated analog peripheral set in PIC16F177X line for cost （对比 PIC16F1768-I/ML)
- Right-sized memory tier for cost-down from PIC16F1778 （对比 PIC16F1778-I/ML)
- XLP nanoWatt sleep vs older PIC16F parts （对比 PIC16F877A legacy)
设计说明
Decouple each VDD pin with a 100 nF ceramic capacitor placed within 5 mm of the pin, plus a bulk 4.7 uF to 10 uF tantalum or ceramic on the main supply rail. For battery-powered designs using XLP sleep, ensure the bulk capacitor supports the wake-up inrush without sagging below VDDmin. A ferrite bead on AVDD reduces digital switching noise coupling into the analog section. Estimated: 100 nF + 10 uF bulk typically holds the rail within 1% during 32 MHz wake events.
The 44-pin QFN (8x8 mm) has an exposed thermal pad (EP) on the underside that MUST be soldered to a PCB land with multiple thermal vias to the ground plane. The EP is internally bonded to VSS and provides the primary thermal path; omitting it can cause the die to overheat under moderate loads. Use at least 9 thermal vias (0.3 mm drill, 0.6 mm pad) on the EP land for thermal performance per the Microchip QFN PCB layout guidelines.
Do not confuse the PIC16F1777-I/ML (industrial -40C to +85C) with the -E/ML (extended -40C to +125C) or -H/ML (automotive) temperature grades - the wrong grade may fail in field deployment. The PIC16F177X pin compatibility chart distinguishes packages: ML = QFN, PT = TQFP, SP = SPDIP, SO = SOIC, SS = SSOP. Verify your ICSP programming pins (RB6/RB7 on legacy parts, RB5/RB4 on this family) match your debugger before layout.
Keep ADC traces short and away from PWM or switching signals; use a ground pour under analog traces to reduce capacitive coupling. If using the on-chip op-amps for current-sense, place 100 nF X7R ceramic feedback capacitors close to the op-amp pins to prevent peaking at high frequencies. For communication lines (UART/SPI/I2C), add 4.7 k to 10 k pull-ups on SCL/SDA and use series resistors for SPI SCK/MOSI/MISO at frequencies above 5 MHz.
合规信息
Industrial temperature grade -40C to +85C. RoHS compliant per Microchip product page. Not AEC-Q100 qualified - choose automotive-grade -VAO or -H variants for vehicle applications. Halogen-free per Microchip environmental certification.
