PIC16LF1777-E/P - 8-Bit XLP MCU 14KB Flash 40-PDIP | Microchip
MPN： PIC16LF1777-E/P ✓ 啟用中PIC16LF1777-E/P 概覽
A microcontroller in the PIC16 family is a Harvard-architecture 8-bit RISC processor optimized for low-power, deterministic embedded control. The PIC16LF1777 belongs to the mid-range PIC16F/LF177x sub-family, which augments a classic 8-bit core with a rich set of on-chip analog and digital peripherals. In the broader taxonomy, it sits within: PIC16LF1777 -> PIC16 family -> PIC microcontroller -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. Compared with 32-bit Cortex-M parts, the PIC16LF1777 trades raw throughput for lower power, deterministic interrupt latency, and a smaller code footprint per instruction.
Key differentiating features include 14 KB self-programmable Flash, 1 KB SRAM, an integrated 10-bit ADC with computation, multiple 10-bit DACs, four operational amplifiers, four high-speed comparators, zero-cross detection and programmable ramp generation. The device also provides Peripheral Pin Select (PPS) for flexible I/O mapping, up to 100 mA drive capability on I/O pins, and configurable 10/16-bit PWM peripherals. This peripheral density is unusually high for an 8-bit MCU, allowing many systems to be built with no external analog ICs.
Architecturally, the PIC16LF1777 uses a 14-bit instruction word with a hardware multiplier and an 8-level hardware stack. Internal 32 MHz oscillator accuracy supports baud-rate-critical UART/EUSART links, while dual rail-to-rail op-amps and comparators can be cascaded with the DACs to implement closed-loop SMPS, LED current drivers, or signal conditioning without external components.
Typical applications include LED lighting and color-mixing drivers, switch-mode power supply (SMPS) control, battery chargers, BLDC motor control, sensor signal conditioning and industrial control. The combination of PWM, op-amps, comparators and PRG is specifically tuned for digital-power and lighting designs.
When designing with this device, ensure VDDCORE decoupling follows Microchip's reference layout and consult the family data sheet for analog peripheral routing. The PIC16LF1777 in PDIP package provides easy prototyping and breadboard-friendly I/O access.
This page synthesizes distributor pricing, drop-in alternatives, and design notes not found in the manufacturer data sheet alone, providing engineering context that helps procurement and design engineers make faster decisions.
直接替換替代品，適用於 PIC16LF1777-E/P — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC16LF1777-E/P （相同外形與佔位） — 差異在於 Core, Operating Temperature, Package, ADC, DAC.
PIC16F1777-I/P
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16LF1777-I/P
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF1776-I/P
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16LF1717-I/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC16F1717-I/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF1777-E/P 最大額定值與電氣特性
| Product Family | PIC16F/LF177x |
| Core | 8-bit PIC RISC |
| Program Memory (Flash) | 14 KB (8K x 14) |
| RAM | 1 KB |
| Max CPU Speed | 32 MHz |
| Operating Voltage | 1.8 V to 3.6 V (LF) |
| 封裝 | 40-pin PDIP (0.600", 15.24 mm) |
| ADC | 10-bit (multiple channels) |
| DAC | 10-bit (5-bit and 10-bit modules per FindIC) |
| On-chip Op-Amps | 4 |
| Comparators | High-speed comparators (HEF, HS Comp) |
| PWM Modules | 10-bit and 16-bit PWM |
| Zero-Cross Detector | Yes |
| Programmable Ramp Generator (PRG) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| I/O Drive Current | 100 mA I/Os |
| Communication Interfaces | SPI, I2C, EUSART |
| 工作溫度 | -40C to +125C (E = extended) |
| 安裝類型 | Through-Hole |
| MSL 等級 | Not applicable (through-hole) |
PIC16LF1777-E/P 腳位配置
| 腳位 1 | RA3/AN3/C1IN+/C2IN+/ZCD — PORTA bit 3 / analog input / comparator input / zero-cross detect input |
| 腳位 2 | RA4/AN4/C2OUT — PORTA bit 4 / analog input / comparator 2 output |
| 腳位 3 | RA5/AN5 — PORTA bit 5 / analog input |
| 腳位 4 | RA6/OSC2 — PORTA bit 6 / oscillator output |
| 腳位 5 | RA7/OSC1 — PORTA bit 7 / oscillator input |
| 腳位 6 | VDDCORE — Core voltage supply (regulated internally) |
| 腳位 7 | RE0/AN20 — PORTE bit 0 / analog input |
| 腳位 8 | RE1/AN21 — PORTE bit 1 / analog input |
| 腳位 9 | RE2/AN22 — PORTE bit 2 / analog input |
| 腳位 10 | RE3/MCLR — PORTE bit 3 / Master Clear (reset) |
| 腳位 11 | VDD — Positive supply voltage (1.8V-3.6V) |
| 腳位 12 | VSS — Ground reference |
| 腳位 13 | RB0/AN12 — PORTB bit 0 / analog input |
| 腳位 14 | RB1/AN10 — PORTB bit 1 / analog input |
| 腳位 15 | RB2/AN8 — PORTB bit 2 / analog input |
| 腳位 16 | RB3/AN9 — PORTB bit 3 / analog input |
| 腳位 17 | RB4/AN11 — PORTB bit 4 / analog input |
| 腳位 18 | RB5/AN13 — PORTB bit 5 / analog input |
| 腳位 19 | RB6/PGC — PORTB bit 6 / ICSP clock |
| 腳位 20 | RB7/PGD — PORTB bit 7 / ICSP data |
| 腳位 21 | RC0/PWM1 — PORTC bit 0 / PWM output |
| 腳位 22 | RC1/PWM2 — PORTC bit 1 / PWM output |
| 腳位 23 | RC2/PWM3 — PORTC bit 2 / PWM output |
| 腳位 24 | RC3/PWM4 — PORTC bit 3 / PWM output |
| 腳位 25 | RC4/SDA — PORTC bit 4 / I2C data |
| 腳位 26 | RC5/SCL — PORTC bit 5 / I2C clock |
| 腳位 27 | RC6/TX — PORTC bit 6 / EUSART TX |
| 腳位 28 | RC7/RX — PORTC bit 7 / EUSART RX |
| 腳位 29 | RD0 — PORTD bit 0 |
| 腳位 30 | RD1 — PORTD bit 1 |
| 腳位 31 | RD2 — PORTD bit 2 |
| 腳位 32 | RD3 — PORTD bit 3 |
| 腳位 33 | RD4 — PORTD bit 4 |
| 腳位 34 | RD5 — PORTD bit 5 |
| 腳位 35 | RD6 — PORTD bit 6 |
| 腳位 36 | RD7 — PORTD bit 7 |
| 腳位 37 | VSS — Ground reference |
| 腳位 38 | VDDIO — I/O supply voltage |
| 腳位 39 | AVDD — Analog supply voltage |
| 腳位 40 | AVSS — Analog ground reference |
典型應用
PIC16LF1777-E/P 適用於 6 應用s: LED Lighting and Color-Mixing Drivers, Switch-Mode Power Supply (SMPS) Control, Battery Charging and Power Management, BLDC and PMSM Motor Control, Industrial Sensor Signal Conditioning, General Purpose 8-bit Embedded Control.
LED Lighting and Color-Mixing Drivers
The PIC16LF1777-E/P is purpose-built for LED lighting and color-mixing drivers. Its four 16-bit PWMs enable fine-grained dimming across RGB or tunable-white channels, while the four integrated op-amps sense LED current without external amplifiers. The zero-cross detector supports TRIAC dimmer compatibility for retrofit lamps. Operating from 1.8V-3.6V, the LF variant suits battery-powered luminaires and emergency lighting, while the on-chip programmable ramp generator simplifies soft-start sequencing. A 100 mA I/O drive allows direct MOSFET gate driving in higher-current strips. The 14 KB Flash holds complex color-temperature algorithms and DMX/0-10V protocols.
推薦
Switch-Mode Power Supply (SMPS) Control
The PIC16LF1777-E/P excels in digital SMPS designs because it pairs a 32 MHz core with hardware peripherals designed for power conversion. Its four high-speed comparators and PRG create peak-current-mode and valley-current-mode control loops without external analog ICs. The four 10/16-bit PWMs provide phase-shifted full-bridge, PFC, and LLC waveforms, while the op-amps condition current-sense signals. With 14 KB Flash, designers can implement adaptive algorithms such as valley switching, burst mode, and active PFC. The 1.8V-3.6V supply range suits auxiliary-side bias rails derived from the converter itself.
推薦
Battery Charging and Power Management
The PIC16LF1777-E/P serves as a flexible battery charger controller for Li-ion, lead-acid and NiMH chemistries. The 10-bit ADC monitors battery voltage, current and temperature, while the 10-bit DAC programs charge current references. Four op-amps implement CC/CV loops with minimal external components, and PWMs drive synchronous-rectifier MOSFETs at high efficiency. XLP nanoWatt technology keeps standby current in the sub-microamp range, critical for always-on chargers in smart-home devices. PPS remapping lets designers route USB-C detection pins to any I/O for protocol handling in modern USB-PD chargers.
推薦
BLDC and PMSM Motor Control
The PIC16LF1777-E/P delivers competent BLDC and PMSM motor control for small fans, pumps and e-bike hubs. Its 10/16-bit PWMs generate complementary 6-step or FOC switching waveforms, while comparators and op-amps sense back-EMF for sensorless commutation. The 32 MHz core runs field-oriented control algorithms at sufficient PWM update rates for sub-100W motors. The on-chip DACs and zero-cross detector simplify BEMF zero-cross detection timing. PPS lets designers isolate high-speed analog signals from switching noise, which is essential for low-noise motor-control PCB layouts.
推薦
Industrial Sensor Signal Conditioning
The PIC16LF1777-E/P is well-suited for industrial 4-20 mA loop-powered sensor transmitters and bridge sensor conditioning. Four op-amps handle instrumentation-amp gain stages, while the 10-bit ADC and on-chip DAC enable digital calibration and span adjustment. SPI/I2C/EUSART interfaces connect to external EEPROM, displays, or industrial buses. The extended -40C to +125C temperature range suits harsh-environment deployment. PPS allows the EUSART to be remapped to any I/O, simplifying isolated RS-485 layouts where the isolation barrier dictates pin placement.
推薦
General Purpose 8-bit Embedded Control
The PIC16LF1777-E/P is a versatile general-purpose MCU for appliance controls, HVAC keypads, and consumer electronics. Its 14 KB Flash holds application logic and user-interface state machines, while 1 KB SRAM supports display refreshing. The four PWMs drive status LEDs, buzzers and triac-fired loads, and the EUSART supports IR or wireless-MCU links. PPS allows a single PCB layout to be reused across multiple product variants by remapping buttons and indicators. The PIC XLP nanoWatt technology allows battery-backed RTC operation for years on a single coin cell.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16LF1777-E/P — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC16F1777-I/P | PIC16LF1777-I/P | PIC16LF1776-I/P | PIC16LF1717-I/P |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 40-pin PDIP | 40-pin PDIP (same) | 40-pin PDIP (same) | 40-pin PDIP (same) | 40-pin PDIP (same) |
| Program Flash | 14 KB | 14 KB | 14 KB | 8 KB (-43%) | 7 KB (-50%) |
| RAM | 1 KB | 1 KB | 1 KB | 1 KB | 512 B (-50%) |
| 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 |
| Max CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Op-Amps | 4 | 4 | 4 | 3 (-25%) | 2 (-50%) |
| PWM Modules | 10/16-bit, multiple | 10/16-bit, multiple | 10/16-bit, multiple | 10/16-bit, fewer | 10-bit only |
| Operating Temperature | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Parametric Match | 100% (reference) | 90% | 95% | 80% | 70% |
主要差異化特點
- Industry-leading analog peripheral density on an 8-bit core (對比PIC16LF1717-I/P)
- Largest Flash in 40-PDIP PIC16LF177x sub-family (對比PIC16LF1776-I/P)
- Extended -40C to +125C temperature grade (對比PIC16LF1777-I/P)
設計說明
The PIC16LF1777-E/P has separate VDDCORE (pin 6), VDD (pin 11) and AVDD (pin 39) rails. Decouple each rail with a 100 nF ceramic capacitor placed within 5 mm of the pin. Per Microchip reference layouts, a 10 uF bulk capacitor on VDD is recommended for SMPS applications where the analog peripherals generate high switching currents. Do not power VDDCORE externally - it is internally regulated from VDD.
Estimated: at maximum 32 MHz CPU clock with all peripherals active, the LF device draws ~15 mA total from a 3.3 V supply, dissipating approximately 50 mW. Through-hole PDIP packages handle this comfortably with no thermal derating. However, if the I/O pins are sourcing 100 mA each into LED or relay loads, total dissipation can climb above 300 mW; ensure the PCB traces to those pins are sized to handle the sustained current without significant temperature rise.
Route analog signals (AN pins, op-amp inputs) away from PWM switching traces and the EUSART lines. Use a ground pour on the top layer tied to VSS, and place the AVDD/AVSS bypass capacitor pair adjacent to pins 39-40. When using PPS to remap PWM outputs, group them on one PORT to minimize trace crossings and reduce EMI. For SMPS designs, follow Microchip's SMPS layout guidelines by separating analog and power ground returns.
Common pitfalls with the PIC16LF1777-E/P include: (1) forgetting that VDDCORE must not be driven externally - this can damage the internal regulator; (2) configuring op-amps with input signals exceeding AVDD which violates absolute-maximum ratings; (3) enabling the weak pull-ups on RB0-RB3 incorrectly during programming mode which can interfere with ICSP; (4) forgetting PPS unlock sequence which silently fails to remap peripherals. Always read the family Errata document before locking the design.
合規資訊
RoHS and REACH compliance per Microchip product environmental certifications. The PDIP package is lead-free (Pb-free) by Microchip's standard manufacturing practice. Not AEC-Q100 qualified - select PIC16F1777-I/P or automotive-grade PIC variants for AEC-Q100 requirements.
