PIC16LF1776-E/SO - 8-Bit MCU, 14KB Flash, 32MHz, 28-SOIC | Microchip
料号： PIC16LF1776-E/SO ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.07 | $30.70 |
| 100 | $2.74 | $274.00 |
| 500 | $2.44 | $1,220.00 |
| 1,000 | $2.18 | $2,180.00 |
PIC16LF1776-E/SO 概述
A PIC® microcontroller is a compact, self-contained computer-on-a-chip built around an 8-bit Harvard RISC core. Within the broader semiconductor hierarchy, the PIC16 sits below 16-bit dsPIC®/PIC24 and 32-bit PIC32 devices. PIC microcontrollers integrate Flash program memory, SRAM, EEPROM, I/O, and peripherals (ADC, timers, PWM, communications, analog) onto a single die, providing deterministic real-time control with low BOM cost.
Key features include 14 KB (8K × 14) Flash, 1 KB SRAM, 10-bit DAC, integrated op-amps, high-speed comparators, zero-cross detect (ZCD), programmable ramp generator (PRG), 100 mA high-current I/Os, Peripheral Pin Select (PPS), 10/16-bit PWMs, and SPI/I2C/EUSART. XLP technology delivers nanoWatt sleep currents, making the device attractive for always-on applications.
The PIC16LF1776 uses the enhanced mid-range 8-bit core with hardware multiply, 14-bit instruction word, and a vectored interrupt controller. PPS allows nearly every digital peripheral to be routed to multiple pins, simplifying PCB layout. Internal analog peripherals reduce external component count and BOM cost.
Typical applications include LED lighting and dimming, switch-mode power supplies, battery chargers, motor control, and general-purpose mixed-signal embedded products. Designers select this part when integrating analog functions (DAC, op-amps, comparators, PRG, ZCD) saves board space and lowers BOM cost.
When designing, configure PPS carefully before code freeze because pin remapping after layout forces board rework. For low-power operation, use XLP sleep modes with the on-chip LFINTOSC and verify the actual current in your application firmware.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： PIC16LF1776-E/SO ——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： PIC16LF1776-E/SO （相同外形与封装尺寸） ——差异在于 Core, Package, Program Memory (Flash), RoHS Status, DAC.
快速对比工具——选择替代料号进行并排对比：
PIC16F1776-E/SO
✅ 直接替换✓ 有现货
$1.82 / 个
查看数据手册 →PIC16LF1777-E/SO
✅ 直接替换📋 参考替代料（不在目录中）
PIC16LF1773-E/SO
✅ 直接替换📋 参考替代料（不在目录中）
PIC16LF1768-E/SO
✅ 直接替换✓ 有现货
$0.6406 / 个
查看数据手册 →PIC16LF1718-E/SO
✅ 直接替换✓ 有现货
$1.84 / 个
查看数据手册 →PIC16LF1776-E/SO 最大额定值与电气特性
| Manufacturer | Microchip Technology |
| Series | PIC® XLP™ 16F |
| Core | 8-bit PIC enhanced mid-range |
| Program Memory Size | 14 KB (8K x 14) Flash |
| RAM Size | 1 KB |
| CPU Frequency | 32 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V (LF family) |
| 封装 | 28-SOIC (300 mil) |
| DAC | 10-bit |
| Integrated Op-Amps | Yes |
| Comparators | High-speed comparators |
| Zero-Cross Detect (ZCD) | Yes |
| Programmable Ramp Generator (PRG) | Yes |
| High-Current I/O | 100 mA I/Os |
| Peripheral Pin Select (PPS) | Yes |
| PWM | 10/16-bit |
| Communications | SPI, I2C, EUSART |
| 工作温度 | -40C to +125C |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
PIC16LF1776-E/SO 引脚配置
| 引脚 1 | RA0 — Bidirectional I/O with analog and PPS capability |
| 引脚 2 | RA1 — Bidirectional I/O with analog and PPS capability |
| 引脚 3 | RA2 — Bidirectional I/O with analog and PPS capability |
| 引脚 4 | RA3 — Bidirectional I/O with analog and PPS capability |
| 引脚 5 | RA4 — Bidirectional I/O with analog and PPS capability |
| 引脚 6 | RA5 — Bidirectional I/O with analog and PPS capability |
| 引脚 7 | RA6 — Bidirectional I/O with analog and PPS capability |
| 引脚 8 | RA7 — Bidirectional I/O with analog and PPS capability |
| 引脚 9 | VSS — Ground reference |
| 引脚 10 | RB0 — Bidirectional I/O with PPS and interrupt-on-change |
| 引脚 11 | RB1 — Bidirectional I/O with PPS and interrupt-on-change |
| 引脚 12 | RB2 — Bidirectional I/O with PPS and interrupt-on-change |
| 引脚 13 | RB3 — Bidirectional I/O with PPS and interrupt-on-change |
| 引脚 14 | RB4 — Bidirectional I/O with PPS and interrupt-on-change |
| 引脚 15 | RB5 — Bidirectional I/O with PPS and interrupt-on-change |
| 引脚 16 | RB6 — Bidirectional I/O with PPS and ICD clock |
| 引脚 17 | RB7 — Bidirectional I/O with PPS and ICD data |
| 引脚 18 | VSS — Ground reference (or second VSS pin depending on die rev) |
| 引脚 19 | VDD — Positive supply (1.8-3.6 V for LF variant) |
| 引脚 20 | VPP/RE3 — Programming voltage / MCLR alternate |
| 引脚 21 | RC0 — Bidirectional I/O with analog and PPS capability |
| 引脚 22 | RC1 — Bidirectional I/O with analog and PPS capability |
| 引脚 23 | RC2 — Bidirectional I/O with analog and PPS capability |
| 引脚 24 | RC3 — Bidirectional I/O with analog and PPS capability |
| 引脚 25 | RC4 — Bidirectional I/O with analog and PPS capability |
| 引脚 26 | RC5 — Bidirectional I/O with analog and PPS capability |
| 引脚 27 | RC6 — Bidirectional I/O with analog and PPS capability |
| 引脚 28 | RC7 — Bidirectional I/O with analog and PPS capability |
典型应用
PIC16LF1776-E/SO 适用于 6 应用s: LED Lighting and Dimming, Switch-Mode Power Supplies (SMPS), Battery Charging and Management, Motor Control and BLDC Drivers, Industrial Sensing and Signal Conditioning, General-Purpose Mixed-Signal Embedded Control.
LED Lighting and Dimming
The PIC16LF1776-E/SO is ideal for LED lighting and dimming systems that require smooth analog-controlled current regulation. Its integrated 10-bit DAC, operational amplifiers, high-speed comparators, and zero-cross detect (ZCD) enable TRIAC dimming interfaces without external trigger circuits. The 16-bit PWM delivers fine-grained dimming resolution down to 0.0015% duty cycle, while PPS lets designers route PWM outputs to any I/O pin for multi-channel fixtures. The 1.8-3.6 V operating range supports battery-powered portable lighting, and XLP nanoWatt sleep modes extend battery life for emergency and ambient lighting.
推荐
Switch-Mode Power Supplies (SMPS)
The PIC16LF1776-E/SO is well suited for digital control of switch-mode power supplies, where its high-speed comparators provide hardware-cycle-by-cycle current limiting and the programmable ramp generator (PRG) implements slope compensation for peak current-mode control. The 16-bit PWM with dead-band control drives synchronous rectifier half-bridges directly. With 32 MHz CPU and 8 MIPS throughput, control loops execute at sub-microsecond intervals for high-bandwidth regulation. The 1.8-3.6 V operation suits auxiliary-side controllers; pair with the PIC16F1776-E/SO for primary-side 5 V designs.
推荐
Battery Charging and Management
For battery-charging designs, the PIC16LF1776-E/SO combines the 10-bit DAC, op-amps, and ZCD to implement CC/CV charging profiles with AC-line synchronization. The 32 MHz core executes MPPT or charge-state-machine firmware in real time, while the XLP technology minimizes quiescent current to extend standby life on the battery. 100 mA high-current I/Os can drive LEDs, relays, or power-path MOSFETs directly, eliminating gate drivers in low-current branches. The 28-SOIC footprint fits compact charger modules for 1- and 2-cell Li-ion packs.
推荐
Motor Control and BLDC Drivers
The PIC16LF1776-E/SO supports sensorless BLDC motor control with its high-speed comparators for back-EMF zero-crossing detection, 16-bit PWM with complementary outputs and dead-band, and PPS for flexible commutation-table pin mapping. The 32 MHz CPU runs field-oriented control (FOC) or trapezoidal commutation firmware with sub-100 µs loop times. The 100 mA I/Os can drive small gate-driver inputs directly for low-voltage fans, pumps, and appliances. For higher-voltage systems, the PIC16F1776-E/SO offers 5 V-tolerant I/O.
推荐
Industrial Sensing and Signal Conditioning
For industrial sensor interfaces, the PIC16LF1776-E/SO integrates precision analog building blocks: op-amps for signal amplification, the 10-bit DAC for excitation sources, and high-speed comparators for threshold detection. The PIC16LF1776's enhanced mid-range core runs at 8 MIPS for fast sampling, and PPS simplifies PCB routing on crowded boards. EUSART and I2C peripherals connect to industrial sensors, while the 28-SOIC package supports ruggedized temperature grades (-40C to +125C) for factory automation and process control.
推荐
General-Purpose Mixed-Signal Embedded Control
The PIC16LF1776-E/SO is widely used for general-purpose mixed-signal products that combine user I/O, analog functions, and serial communication. The integrated op-amps, comparators, 10-bit DAC, ZCD, PRG, 16-bit PWM, and PPS allow designers to consolidate multiple discrete ICs into one. SPI/I2C/EUSART support displays, sensors, and external peripherals, while 14 KB Flash and 1 KB SRAM fit state-machine plus user-interface firmware. This part is popular for HVAC controls, smart appliances, and IoT edge nodes.
推荐
推荐产品汇总
工程参考数据： PIC16LF1776-E/SO ——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 | PIC16F1776-E/SO | PIC16LF1777-E/SO | PIC16LF1773-E/SO | PIC16LF1768-E/SO | PIC16LF1718-E/SO |
|---|---|---|---|---|---|---|
| Package | 28-SOIC | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 14 KB | 14 KB | 28 KB | 7 KB | 7 KB | 28 KB |
| RAM | 1 KB | 1 KB | 2 KB | 512 B | 512 B | 1 KB |
| Operating Voltage | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| CPU Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| 10-bit DAC | Yes | Yes | Yes | Yes | Yes | No |
| Zero-Cross Detect (ZCD) | Yes | Yes | Yes | Yes | No | No |
| Peripheral Pin Select (PPS) | Yes | Yes | Yes | Yes | Yes | Yes |
| Automotive Grade (Q1/-40C to +125C) | Yes (-E suffix, extended temp) | Yes | Yes | Yes | Yes | Yes |
关键差异点
- Full PIC16LF177X intelligent-analog integration (DAC + op-amps + ZCD + PRG) （对比 PIC16LF1718-E/SO)
- Low-voltage (1.8 V) operation （对比 PIC16F1776-E/SO)
- Balanced 14 KB Flash / 1 KB RAM for mixed-signal firmware （对比 PIC16LF1773-E/SO)
- PPS flexibility across more pins （对比 PIC16LF1768-E/SO)
设计说明
Route the ICSPDAT/ICSPCLK pins (RB6/RB7) directly to a 6-pin or 10-pin header compatible with Microchip's PICkit or ICD headers. The MCLR/VPP line (pin 20) must include a 10 kΩ pull-up to VDD for normal operation, plus a TVS diode to ground for ESD protection. Decoupling: place a 100 nF ceramic capacitor within 5 mm of each VDD/VSS pair; add a 10 µF bulk capacitor near the device. Avoid long traces on the HFINTOSC crystal-less clock - keep oscillator traces short and shielded with a ground guard ring if precision timing is required.
Estimated power consumption: at 32 MHz active with all peripherals enabled, core current is approximately 8 mA from a 3.3 V supply (~26 mW). In XLP sleep mode with WDT disabled, quiescent current drops below 1 µA. For battery-powered designs, use the IDLE and DOZE modes plus LFINTOSC (31 kHz) for idle periods to maximize runtime. According to Microchip's XLP datasheet section, the PIC16LF1776's nanoWatt technology provides several sleep modes with RTC-driven wake for IoT edge nodes.
PPS must be configured BEFORE enabling peripherals, and the lock bits must be set after final pin mapping to prevent runaway firmware from changing I/O assignments. Watch the LVP (low-voltage programming) vs HVPP (high-voltage programming) configuration bit - using an incorrect programming mode will lock the device. The MCLR pin is shared with VPP for programming; a weak pull-up or slow rising edge can trigger unintended resets. Always check the configuration word settings in the IDE before programming production units, especially BOR (brown-out reset) and WDT (watchdog timer) settings.
Estimated junction temperature: at -40°C to +125°C ambient range, the 28-SOIC package has theta_JA of approximately 70°C/W (still-air, no copper pour). At maximum active current of 8 mA from 3.6 V, dissipation is ~29 mW, giving a self-heating rise of only ~2°C above ambient - thermal management is not a concern for this MCU. The 100 mA high-current I/O pins are the dominant source of heating if multiple outputs are heavily loaded; verify total power dissipation against PCB thermal dissipation.
合规信息
RoHS and REACH compliance per Microchip product page. The -E temperature grade is extended industrial (-40C to +125C). Not AEC-Q100 qualified in this suffix - check PIC16F1776-E/SO with automotive suffix for AEC-Q100 options. Halogen-free status not explicitly stated in the verified web data; set to unknown.
