PIC16LF1777T-I/MV - 14KB Flash 8-Bit MCU 32MHz | Microchip
料号： PIC16LF1777T-I/MV ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.71 | $1.71 |
| 10 | $1.54 | $15.40 |
| 100 | $1.38 | $138.00 |
| 500 | $1.24 | $620.00 |
| 1,000 | $1.12 | $1,120.00 |
| 3,300 | $1.01 | $3,333.00 |
PIC16LF1777T-I/MV 概述
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, timers, communication peripherals, and analog blocks. The PIC16LF1777 family sits in Microchip's PIC® XLP™ eXtreme Low Power portfolio and targets cost-sensitive applications that still need rich analog integration; within the broader taxonomy it belongs to: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The "LF" prefix denotes the low-voltage / low-Flash variant supporting 1.8 V to 3.6 V operation, while the "F" parts in this family run from 2.3 V to 5.5 V. Distinguishing the part in its class, this MCU integrates multiple on-chip op amps, 5/10-bit DACs, high-speed comparators, a 10-bit ADC with computation, programmable ramp generators, zero-cross detection, 10/16-bit PWMs with PWM-steering, and Core Independent Peripherals (CIPs) such as the Configurable Logic Cell (CLC) and Complementary Waveform Generator (CWG).
Key features include 14 KB self-programmable flash, 1 KB SRAM, 256 bytes of EEPROM, up to 36 I/O pins with 100 mA high-current capability, Peripheral Pin Select (PPS) for flexible signal routing, EUSART, SPI, I2C (Master/Slave), and a 32 MHz internal oscillator. Four op amps, three 5-bit DACs and one 10-bit DAC provide analog signal-chain integration that normally requires external components, while four 16-bit PWMs support power-conversion topologies such as PFC, half-bridge, full-bridge, and active-clamp forward converters.
Typical applications include LED lighting and tunable-white / RGB drivers, switch-mode power supplies (PFC + LLC or buck/boost), battery chargers (Li-ion, lead-acid, NiMH), DC-DC converters, brushless DC and stepper motor control, and general-purpose mixed-signal embedded designs. The high integration reduces BOM cost and PCB area in compact consumer and industrial products. When designing with this MCU, verify the PICkit / ICD programmer debug-header pinout (PGC/PGD/PGM) and consider the device's extended (-40 °C to +85 °C) industrial temperature grade, denoted by the "I" suffix in the part number.
直接替换替代料： PIC16LF1777T-I/MV ——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： PIC16LF1777T-I/MV （相同外形与封装尺寸） ——差异在于 ADC, Communication, DAC, Package.
快速对比工具——选择替代料号进行并排对比：
PIC16LF1778T-I/MV
✅ 直接替换📋 参考替代料（不在目录中）
PIC16LF1779T-I/MV
✅ 直接替换📋 参考替代料（不在目录中）
PIC16LF1777-I/MV
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
PIC16LF1777T-E/MV
✅ 直接替换📋 参考替代料（不在目录中）
PIC16F1777T-I/MV
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$1.27 / 个
查看数据手册 →PIC16LF1777T-I/MV 最大额定值与电气特性
| Family | PIC® XLP™ 16F |
| Core | PIC16 8-bit enhanced mid-range |
| Program Memory | 14 KB (8K x 14) Flash |
| Data RAM | 1 KB |
| EEPROM | 256 bytes |
| Maximum CPU Frequency | 32 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V (LF family) |
| I/O Pins | up to 36 (high-current 100 mA capable) |
| 封装 | 40-pin UQFN (MV) 5x5 mm with EP |
| ADC | 10-bit with Computation |
| DAC | 3x 5-bit + 1x 10-bit |
| Op Amps | 4 on-chip |
| Comparators | High-speed |
| PWM | 10/16-bit, multiple instances |
| Communication | EUSART, SPI, I2C (M/S) |
| Special Features | PPS, ZCD, CWG, CLC, PRG, NCO |
| 工作温度 | -40 °C to +85 °C (Industrial) |
| RoHS 状态 | Compliant |
PIC16LF1777T-I/MV 引脚配置
| 引脚 1 | RA0/AN0/C1IN0+/C2IN0+/C3IN0+/OPA1IN0+ — PORTA bit 0 / ADC input / comparator input / OPA1 non-inverting input |
| 引脚 2 | RA1/AN1/C1IN1-/C2IN1-/C3IN1-/OPA1IN0- — PORTA bit 1 / ADC / comparator / OPA1 inverting input |
| 引脚 3 | RA2/AN2/DAC5REF0/C1IN0+/C2IN0+/C3IN0+/OPA1OUT — PORTA bit 2 / ADC / DAC ref / OPA1 output |
| 引脚 4 | RA3/AN3/VREF+/C1IN1-/C2IN1-/C3IN1- — PORTA bit 3 / ADC / external Vref+ |
| 引脚 5 | RA4/AN4/C1OUT/T0CKI — PORTA bit 4 / ADC / comparator 1 output / Timer0 clock |
| 引脚 6 | RA5/AN5/C2OUT/DAC5REF1 — PORTA bit 5 / ADC / comparator 2 output / DAC ref |
| 引脚 7 | RA6/AN6/C3OUT — PORTA bit 6 / ADC / comparator 3 output |
| 引脚 8 | RA7/AN7 — PORTA bit 7 / ADC |
| 引脚 9 | VSS — Ground reference |
| 引脚 10 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
| 引脚 11 | RB0/AN8/C1IN2+/C2IN2+/C3IN2+/OPA2IN0+ — PORTB bit 0 / ADC / comparator / OPA2 input |
| 引脚 12 | RB1/AN9/C1IN2-/C2IN2-/C3IN2-/OPA2IN0- — PORTB bit 1 / ADC / OPA2 inverting input |
| 引脚 13 | RB2/AN10/C1IN3+/C2IN3+/C3IN3+/OPA2OUT — PORTB bit 2 / ADC / OPA2 output |
| 引脚 14 | RB3/AN11/C1IN3-/C2IN3-/C3IN3-/OPA3IN0+ — PORTB bit 3 / ADC / OPA3 input |
| 引脚 15 | RB4/AN12/C2OUT/OPA3OUT — PORTB bit 4 / ADC / OPA3 output |
| 引脚 16 | RB5/AN13/CCP3/T1G — PORTB bit 5 / ADC / CCP3 / Timer1 gate |
| 引脚 17 | RB6/ICSPCLK/ICDCK — PORTB bit 6 / ICSP clock / ICD clock |
| 引脚 18 | RB7/ICSPDAT/ICDDAT — PORTB bit 7 / ICSP data / ICD data |
| 引脚 19 | RC0/SOSCO — PORTC bit 0 / secondary oscillator output |
| 引脚 20 | RC1/SOSCI — PORTC bit 1 / secondary oscillator input |
| 引脚 21 | RC2/AN14/CMP1OUT — PORTC bit 2 / ADC / comparator output |
| 引脚 22 | RC3/AN15/CMP2OUT — PORTC bit 3 / ADC / comparator output |
| 引脚 23 | RC4/AN16/CMP3OUT — PORTC bit 4 / ADC / comparator output |
| 引脚 24 | RC5/AN17 — PORTC bit 5 / ADC |
| 引脚 25 | RC6/AN18/TX/CK — PORTC bit 6 / ADC / EUSART TX/CK |
| 引脚 26 | RC7/AN19/RX/DT — PORTC bit 7 / ADC / EUSART RX/DT |
| 引脚 27 | RE0/AN20/CCP5 — PORTE bit 0 / ADC / CCP5 |
| 引脚 28 | RE1/AN21/CCP6 — PORTE bit 1 / ADC / CCP6 |
| 引脚 29 | RE2/AN22/CCP7/OPA4IN0+ — PORTE bit 2 / ADC / CCP7 / OPA4 input |
| 引脚 30 | RE3/AN23/OPA4IN0- — PORTE bit 3 / ADC / OPA4 inverting input |
| 引脚 31 | RD0/AN24/OPA4OUT — PORTD bit 0 / ADC / OPA4 output |
| 引脚 32 | RD1/AN25/CCP8 — PORTD bit 1 / ADC / CCP8 |
| 引脚 33 | RD2/AN26/CCP9 — PORTD bit 2 / ADC / CCP9 |
| 引脚 34 | RD3/AN27/CCP10 — PORTD bit 3 / ADC / CCP10 |
| 引脚 35 | RD4/AN28 — PORTD bit 4 / ADC |
| 引脚 36 | RD5/AN29 — PORTD bit 5 / ADC |
| 引脚 37 | RD6/AN30 — PORTD bit 6 / ADC |
| 引脚 38 | RD7/AN31 — PORTD bit 7 / ADC |
| 引脚 39 | VSS — Ground reference |
| 引脚 40 | VDD — Positive supply voltage |
典型应用
PIC16LF1777T-I/MV 适用于 6 应用s: LED Lighting and Tunable-White Drivers, Switch-Mode Power Supply (SMPS) Digital Control, Battery Charging (Li-ion / Lead-Acid / NiMH), Brushless DC (BLDC) and Stepper Motor Control, General-Purpose Mixed-Signal Embedded Systems, Industrial Process Control and Instrumentation.
LED Lighting and Tunable-White Drivers
The PIC16LF1777T-I/MV is ideally suited for LED lighting and tunable-white / RGB color-mixing drivers. Its 16-bit PWMs provide 65,536-step dimming resolution for smooth, flicker-free brightness control, while the four integrated op amps handle current sensing across multiple LED strings without external amplifiers. The 10-bit DAC sets steady-state current references, and the high-speed comparators trigger over-current shutdown within microseconds. PPS routing lets the designer remap PWM outputs to any I/O pin, simplifying PCB layout when assigning LED channels. Compared with discrete analog LED drivers, this MCU-based approach enables DMX512 or DALI communication via EUSART while keeping the BOM small - typically 30% fewer components than equivalent analog designs.
推荐
Switch-Mode Power Supply (SMPS) Digital Control
The PIC16LF1777T-I/MV excels in digital control of switch-mode power supplies, including PFC + LLC, half-bridge, full-bridge, and active-clamp forward topologies. Its 16-bit PWMs generate high-resolution duty cycles critical for tight output voltage regulation, while the on-chip Complementary Waveform Generator (CWG) produces dead-band-controlled complementary gate-drive signals for synchronous rectifiers. Four integrated op amps close multiple current/voltage feedback loops without external analog ICs, and the 10-bit ADC with computation performs cycle-by-cycle current-mode control. The Programmable Ramp Generator (PRG) and Zero-Cross Detector (ZCD) simplify Valley / Quasi-Resonant switching. Designers can replace $1-2 of analog control circuitry with this single MCU at comparable or lower total cost.
推荐
Battery Charging (Li-ion / Lead-Acid / NiMH)
For battery charging applications - Li-ion CC/CV, lead-acid multi-stage, and NiMH delta-peak termination - the PIC16LF1777T-I/MV provides a fully integrated analog front end. Four op amps sense charge current, battery voltage, and temperature (via NTC), while the 10-bit DAC programs constant-current setpoints and 5-bit DACs trim offset voltages. The 16-bit PWMs drive synchronous buck converter switches with proper dead-time control via CWG. EEPROM stores charging profile parameters (CC level, CV voltage, timeout) that survive power cycles - critical for smart chargers that must remember user settings. Compared with charger-specific ASICs, this flexible MCU supports multiple battery chemistries via firmware updates, reducing SKU count for charger manufacturers.
推荐
Brushless DC (BLDC) and Stepper Motor Control
The PIC16LF1777T-I/MV drives BLDC, PMSM, and stepper motors using its 16-bit PWMs for sinusoidal commutation or microstepping waveforms. The CWG generates complementary gate-drive signals with programmable dead-time for three-phase inverter legs, and on-chip op amps amplify shunt-resistor current feedback signals. The 10-bit ADC with computation performs Clarke/Park transforms in software for sensorless FOC operation at moderate speeds. PPS lets the designer route the same PWM channels to different pins, simplifying PCB layout for various motor drive board revisions. The Core Independent Peripherals (CLC and NCO) handle commutation timing without CPU intervention, freeing the core for higher-level control loops.
推荐
General-Purpose Mixed-Signal Embedded Systems
Beyond lighting and power, the PIC16LF1777T-I/MV is an excellent choice for general-purpose mixed-signal designs such as sensor hubs, smart thermostats, IoT edge nodes, and industrial process controllers. The combination of 14 KB flash, 1 KB RAM, and rich analog peripherals enables compact implementations of sensor readout, signal conditioning, and actuation in a single chip. EUSART/SPI/I2C interfaces connect to radios, sensors, or display modules. The 32 MHz core runs at 8 MIPS, sufficient for basic PID control loops and protocol stacks. The extended industrial temperature range (-40 °C to +85 °C) and XLP low-power modes (down to nanoamp sleep currents) make it equally suitable for mains-powered industrial and battery-powered consumer products.
推荐
Industrial Process Control and Instrumentation
Industrial process control - including 4-20 mA loop transmitters, sensor signal conditioners, and small PLCs - leverages the PIC16LF1777T-I/MV's rich analog integration and industrial temperature range. The op amps amplify thermocouple, RTD, or strain-gauge signals directly, while the 10-bit ADC digitizes them with sufficient resolution for process monitoring. The DACs generate 4-20 mA loop excitation via op-amp current drivers. Hardware comparators implement alarm thresholds that trip within microseconds, independent of CPU latency. PPS enables flexible pin assignment so the same firmware can be ported across different board layouts. Industrial certifications of the host product are simplified because the MCU's robust -40 °C to +85 °C specification reduces environmental qualification effort.
推荐
推荐产品汇总
工程参考数据： PIC16LF1777T-I/MV ——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 | PIC16LF1778T-I/MV | PIC16LF1779T-I/MV | PIC16LF1777T-E/MV | PIC16F1777T-I/MV |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 40-pin UQFN (MV) 5x5 mm | 40-pin UQFN (MV) - same | 40-pin UQFN (MV) - same | 40-pin UQFN (MV) - same | 40-pin UQFN (MV) - same |
| Program Flash | 14 KB | 28 KB | 28 KB | 14 KB | 14 KB |
| Data RAM | 1 KB | 2 KB | 2 KB | 1 KB | 1 KB |
| Operating Voltage | 1.8 V to 3.6 V (LF) | 1.8 V to 3.6 V (LF) | 1.8 V to 3.6 V (LF) | 1.8 V to 3.6 V (LF) | 2.3 V to 5.5 V (F) |
| CPU Frequency | 32 MHz (8 MIPS) | 32 MHz (8 MIPS) | 32 MHz (8 MIPS) | 32 MHz (8 MIPS) | 32 MHz (8 MIPS) |
| Operating Temperature | -40 °C to +85 °C (Industrial) | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +125 °C (Extended) | -40 °C to +85 °C |
关键差异点
- Highest integration of analog peripherals in PIC16LF177x family （对比 PIC16LF15355-I/MV)
- Lower voltage operation for battery-powered designs （对比 PIC16F1777T-I/MV)
- Cost-optimized memory configuration （对比 PIC16LF1778T-I/MV)
设计说明
Decouple VDD with a 100 nF ceramic capacitor placed within 3 mm of the VDD pin, and add a 10 µF bulk capacitor on the VDDCORE pin if used externally. For battery-powered designs, leverage the LF variant's nanoamp Sleep mode by configuring unused peripherals to disabled state in firmware before issuing the SLEEP instruction. The XLP technology enables currents below 100 nA in deep Sleep with RTCC running.
Do not exceed the absolute maximum VDD of 4.0 V (LF) or 6.5 V (F). When using the LF variant, ensure all input signals (including programming/debug signals) remain within VDD + 0.3 V to avoid latch-up. Configure unused I/O pins as outputs driving low to minimize current consumption and prevent floating-input oscillations. The ICSP pins (RB6/ICSPCLK and RB7/ICSPDAT) require careful PCB layout - route them away from high-current switching traces to prevent programming interference.
Use a continuous ground plane under the UQFN exposed thermal pad and stitch vias around the perimeter to improve thermal dissipation and reduce EMI. Place the decoupling capacitor directly adjacent to the VDD pin before any vias in the trace. For designs using the on-chip op amps, route analog input traces with guard rings tied to a quiet ground to minimize crosstalk from switching PWM signals. The PPS feature is powerful but requires careful firmware configuration - document all PPS mappings to facilitate code maintenance.
合规信息
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - choose automotive-qualified variants separately. Standard LF parts are industrial temperature (-40 °C to +85 °C); for extended -40 °C to +125 °C, select the E-grade (PIC16LF1777T-E/MV).
