PIC16LF877T-04I/L - 8-bit 4MHz MCU 14KB FLASH 44-PLCC | Microchip
MPN: PIC16LF877T-04I/L ✓ Hoạt độngPIC16LF877T-04I/L Tóm tắt
What is a PIC16F microcontroller? The PIC16F is one of Microchip's mid-range 8-bit RISC microcontroller families, sitting within the broader PIC16 family -> mid-range MCU -> 8-bit MCU -> microcontroller -> embedded processor taxonomy. These devices are Harvard-architecture RISC cores with separate program and data buses, a small instruction set, and rich integrated peripherals (ADC, USART, I2C/SPI, timers, PWM, CCP). They target cost-sensitive embedded control where deterministic timing, low power, and peripheral integration outweigh raw CPU throughput.
Key features of the PIC16LF877T-04I/L include its nanoWatt technology for low-power operation with multiple power-managed modes (Run, Idle, Sleep), an integrated 10-bit A/D converter with up to 8 channels, two 8-bit timers plus one 16-bit timer, a Capture/Compare/PWM (CCP) module, MSSP for I2C/SPI, and an enhanced USART. The 'LF' prefix denotes the low-voltage variant rated 2.0V-5.5V, and the 'I' suffix marks the industrial temperature grade.
The PIC16LF877T-04I/L uses a 14-bit instruction word and offers self-programmable FLASH with ICD (In-Circuit Debugger) support. Its 33 I/O pins are individually configurable with weak pull-ups, interrupt-on-change capability, and source/sink current capability suited to LED driving. The industrial -40°C to +85°C range and wide supply voltage make it well-suited for factory, automotive aftermarket, and consumer appliance environments.
Typical applications include industrial automation control boards, HVAC sensor interfaces, low-power remote sensor nodes, consumer appliance front panels, and automotive aftermarket accessories. The 14KB FLASH accommodates substantial application code while leaving room for bootloaders and user-configurable parameters stored in 256-byte EEPROM.
When designing with this part, plan decoupling with a 100 nF ceramic capacitor close to VDD and a 10 µF bulk capacitor; use the on-chip PLL-free oscillator or an external crystal to drive the 4 MHz core. For noisy environments, enable the watchdog timer and unused I/O pin output-low to minimize quiescent current.
This page synthesizes verified distributor pricing, drop-in alternatives drawn from the same PIC16LF877 family, and practical design notes not aggregated on a single manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC16LF877T-04I/L — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16LF877T-04I/L (cùng hình factor và footprint) — khác nhau ở Package, Mounting Type, Timers, ADC, Core.
PIC16LF877-04I/L
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF877T-04/L
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Xem tài liệu →PIC16LF877-04/L
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF877T-04I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF877A-I/L
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16LF877T-04I/L Tỷ lệ tối đa & tính chất điện
| Manufacturer | Microchip Technology |
| Series | PIC® 16F |
| Core | PIC16 (8-bit RISC, 14-bit instruction word) |
| Program Memory Size | 14 KB (8K x 14) FLASH |
| RAM Size | 368 bytes |
| EEPROM Size | 256 bytes |
| Tần số xung maksimum | 4 MHz |
| Điện áp cung cấp hoạt động | 2.0 V to 5.5 V |
| Number of I/O Pins | 33 |
| ADC | 10-bit, 8 channels |
| Bề rộng đường dữ liệu | 8 bit |
| Khoảng nhiệt độ hoạt động | -40 °C to +85 °C (industrial) |
| Hộp / Vỏ | 44-PLCC (J-Lead, 16.59 x 16.59 mm) |
| Kiểu lắp đặt | Surface Mount |
| Supply Voltage (min) | 2.0 V |
| Supply Voltage (max) | 5.5 V |
| Peripherals | Brown-out Detect, Watchdog Timer, PWM, ICD, nanoWatt |
| Connectivity | I2C, SPI, USART (MSSP + EUSART) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16LF877T-04I/L
| Chân 1 | MCLR/VPP — Master Clear (reset) input / programming voltage |
| Chân 2 | RA0/AN0 — PORTA bit 0 / Analog input channel 0 |
| Chân 3 | RA1/AN1 — PORTA bit 1 / Analog input channel 1 |
| Chân 4 | RA2/AN2/VREF- — PORTA bit 2 / Analog input 2 / ADC VREF- |
| Chân 5 | RA3/AN3/VREF+ — PORTA bit 3 / Analog input 3 / ADC VREF+ |
| Chân 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Chân 7 | RA5/AN4/SS — PORTA bit 5 / Analog input 4 / SPI slave select |
| Chân 8 | RE0/RD/AN5 — PORTE bit 0 / Parallel slave port read / Analog input 5 |
| Chân 9 | RE1/WR/AN6 — PORTE bit 1 / Parallel slave port write / Analog input 6 |
| Chân 10 | RE2/CS/AN7 — PORTE bit 2 / Parallel slave port chip select / Analog input 7 |
| Chân 11 | VDD — Positive supply (2.0V to 5.5V) |
| Chân 12 | VSS — Ground reference |
| Chân 13 | OSC1/CLKIN — Crystal oscillator input / external clock input |
| Chân 14 | OSC2/CLKOUT — Crystal oscillator output / clock output |
| Chân 15 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator out / Timer1 clock in |
| Chân 16 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator in / Capture/Compare/PWM 2 |
| Chân 17 | RC2/CCP1 — PORTC bit 2 / Capture/Compare/PWM 1 |
| Chân 18 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Chân 19 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Chân 20 | RC5/SDO — PORTC bit 5 / SPI data out |
| Chân 21 | RC6/TX/CK — PORTC bit 6 / EUSART TX / EUSART clock |
| Chân 22 | RC7/RX/DT — PORTC bit 7 / EUSART RX / EUSART data |
| Chân 23 | RD0/PSP0 — PORTD bit 0 / Parallel slave port data bit 0 |
| Chân 24 | RD1/PSP1 — PORTD bit 1 / Parallel slave port data bit 1 |
| Chân 25 | RD2/PSP2 — PORTD bit 2 / Parallel slave port data bit 2 |
| Chân 26 | RD3/PSP3 — PORTD bit 3 / Parallel slave port data bit 3 |
| Chân 27 | RD4/PSP4 — PORTD bit 4 / Parallel slave port data bit 4 |
| Chân 28 | RD5/PSP5 — PORTD bit 5 / Parallel slave port data bit 5 |
| Chân 29 | RD6/PSP6 — PORTD bit 6 / Parallel slave port data bit 6 |
| Chân 30 | RD7/PSP7 — PORTD bit 7 / Parallel slave port data bit 7 |
| Chân 31 | VSS — Ground reference |
| Chân 32 | VDD — Positive supply (2.0V to 5.5V) |
| Chân 33 | RB0/INT — PORTB bit 0 / External interrupt |
| Chân 34 | RB1 — PORTB bit 1 |
| Chân 35 | RB2 — PORTB bit 2 |
| Chân 36 | RB3/PGM — PORTB bit 3 / Low-voltage programming |
| Chân 37 | RB4 — PORTB bit 4 |
| Chân 38 | RB5/PGM — PORTB bit 5 / Programming pin |
| Chân 39 | RB6/PGC — PORTB bit 6 / In-circuit debugger clock |
| Chân 40 | RB7/PGD — PORTB bit 7 / In-circuit debugger data |
| Chân 41 | NC — Not connected (per PLCC-44 footprint) |
| Chân 42 | NC — Not connected (per PLCC-44 footprint) |
| Chân 43 | NC — Not connected (per PLCC-44 footprint) |
| Chân 44 | NC — Not connected (per PLCC-44 footprint) |
Ứng dụng tiêu biểu
PIC16LF877T-04I/L phù hợp cho 6 Áp dụngs: Industrial Automation Control Boards, HVAC Sensor Interface Modules, Low-Power Remote Sensor Nodes, Consumer Appliance Front Panels, Automotive Aftermarket Accessories, Educational and Hobbyist Embedded Kits.
Industrial Automation Control Boards
The PIC16LF877T-04I/L fits industrial PLC-style I/O boards because its 33 I/O pins directly drive relay coils, opto-isolators, and 24 V signal conditioning, while the 14KB FLASH accommodates ladder-logic-style firmware and Modbus RTU via the on-chip EUSART. Operating from 2.0V to 5.5V across -40°C to +85°C, it survives the voltage sags and temperature swings typical of factory floor cabinets. The 10-bit ADC handles 4-20 mA loop back-conversion or thermistor sensing on up to 8 channels without external analog front-ends. Compared to bare 8051 alternatives, the nanoWatt sleep modes cut idle power for sparsely-sampled remote I/O nodes.
Được đề xuất
HVAC Sensor Interface Modules
The PIC16LF877T-04I/L is a strong fit for HVAC wall-modules and rooftop-unit controllers because its 10-bit ADC can simultaneously sample thermistor, humidity, and pressure sensors while the integrated PWM module drives damper/valve actuators. The 4 MHz core easily handles the slow control loops involved, leaving cycles free for capacitive-touch or LCD UI handling. The 256-byte EEPROM stores calibration constants and user setpoints across power cycles. Industrial -40°C to +85°C operation covers unconditioned plant rooms and outdoor enclosures.
Được đề xuất
Low-Power Remote Sensor Nodes
Battery-powered wireless sensor endpoints benefit from the PIC16LF877T-04I/L's nanoWatt sleep current and 2.0 V brown-out tolerance, letting the MCU survive on a pair of AA cells for years. The MSSP block drives SPI temperature/humidity sensors and I2C RTCs while the EUSART handles transparent serial radio modules at 9600-115200 baud. The 33 I/O lines support multi-sensor arrays with margin for status LEDs and a pushbutton wake source. Deep sleep wake via Watchdog timer or interrupt-on-change extends battery life without external RTC chips.
Được đề xuất
Consumer Appliance Front Panels
The PIC16LF877T-04I/L drives washers, dryers, dishwashers, and microwave user interfaces by combining its PWM outputs for buzzer tones, the 10-bit ADC for rotary encoder and key-matrix scanning, and 33 I/O lines for 7-segment or character LCD multiplexing. 14KB FLASH is sufficient for animated menu graphics stored as lookup tables and protocol stacks for Modbus/ApplianceLink. The wide 2.0V to 5.5V supply lets it share a regulated rail with backlight inverters, simplifying SMPS design. Industrial temperature rating covers garage and basement installations.
Được đề xuất
Automotive Aftermarket Accessories
Although not AEC-Q100 qualified, the PIC16LF877T-04I/L's industrial -40°C to +85°C range and 5.5 V maximum supply survive the body-electronics environment for aftermarket alarm modules, lighting controllers, and OBD-II diagnostic accessories. Its CCP/PWM block drives MOSFET gate drivers for LED load switching, while the EUSART interfaces LIN or K-line transceivers. The 256-byte EEPROM stores user preferences and trip counters. Designers should add a 12 V TVS and EMI filter upstream of the MCU, but the wide operating voltage range tolerates load-dump transients up to the absolute maximum.
Được đề xuất
Educational and Hobbyist Embedded Kits
The PIC16LF877T-04I/L is well-suited to teaching labs and DIY makers because its 44-PLCC package drops into a wide variety of development boards (including Microchip's PICDEM 2 Plus), and the 4 MHz instruction cycle is fast enough for visible signal-processing demos without overwhelming student code. In-circuit debugger support via ICD2/ICD3 (or modern PICkit 3/4 in Debug mode) lets beginners step through firmware line-by-line. The 14KB FLASH provides ample space for tutorial projects covering ADC sampling, PWM motor control, and I2C peripheral interfacing.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LF877T-04I/L — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC16LF877-04I/L | PIC16LF877T-04/L | PIC16LF877-04/L | PIC16LF877T-04I/PT | PIC16LF877A-I/L |
|---|---|---|---|---|---|---|
| Package | 44-PLCC (L) | 44-PLCC (L) - same | 44-PLCC (L) - same | 44-PLCC (L) - same | 44-TQFP (PT) - different footprint | 44-PLCC (L) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Family | PIC16 mid-range (8-bit, 14-bit instruction) | PIC16 mid-range - same | PIC16 mid-range - same | PIC16 mid-range - same | PIC16 mid-range - same | PIC16 mid-range - same |
| Program Memory | 14 KB FLASH | 14 KB FLASH | 14 KB FLASH | 14 KB FLASH | 14 KB FLASH | 14 KB FLASH |
| Maximum Clock Frequency | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 20 MHz |
| Operating Voltage | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| Temperature Grade | Industrial -40 C to +85 C | Industrial -40 C to +85 C | Commercial 0 C to +70 C | Commercial 0 C to +70 C | Industrial -40 C to +85 C | Industrial -40 C to +85 C |
| I/O Pins | 33 | 33 | 33 | 33 | 33 | 33 |
| Packaging Format | Tape & Reel (T) | Tube | Tape & Reel (T) | Tube | Tape & Reel (T) | Tube |
| Silicon Revision | PIC16LF877 (LF family, 04 speed) | PIC16LF877 (LF family, 04 speed) | PIC16LF877 (LF family, 04 speed) | PIC16LF877 (LF family, 04 speed) | PIC16LF877 (LF family, 04 speed) | PIC16LF877A (A silicon revision) |
Bảo phân biệt quan trọng
- 44-PLCC surface-mount package on industrial temperature grade (vsPIC16LF877T-04/L)
- Tape-and-Reel packaging for high-volume SMT assembly (vsPIC16LF877-04I/L)
- Wide 2.0V to 5.5V operation including 3.3V battery systems (vsPIC16F877A-I/L)
Ghi chú thiết kế
Place a 100 nF ceramic decoupling capacitor between VDD (pin 11 or 32) and VSS (pin 12 or 31), routed as close to the MCU as possible with a via directly to a ground pour. Add a 10 µF bulk capacitor near the supply entry point. The PIC16LF877T-04I/L draws roughly 2 mA active at 4 MHz and 5 V, so a small LDO like MCP1700 (250 mV dropout, 1.6 µA Iq) is sufficient; for 3.3 V battery applications, MCP1640 boost converters handle single-cell AA inputs cleanly.
Route the 4 MHz crystal traces (OSC1/OSC2, pins 13-14) as short, symmetrical loops with a grounded guard ring, and keep them away from the analog AN0-AV7 traces on PORTA/PORTE to avoid coupling clock harmonics into ADC samples. The 44-PLCC land pattern requires J-lead pads on a 1.27 mm pitch; verify your PCB library matches JEDEC MS-018 footprints rather than generic PLCC outlines to avoid solder-bridge defects. Maintain a continuous ground pour under the MCU for thermal dissipation - the 14KB FLASH variant consumes ~70 mW at full activity.
Do NOT leave MCLR floating: tie it to VDD through a 10 kΩ pull-up resistor with a 100 nF cap to ground for noise immunity, otherwise the MCU can spurious-reset on EMI events. Verify the CONFIG words set the watchdog timer, brown-out detect, and oscillator mode (HS/RC/XT) appropriate to your crystal before locking the firmware - omitting BOD leaves the MCU vulnerable to code corruption during brown-out. The parallel slave port (PORTD + PORTE) shares pins with the ADC; if you use PSP, you lose AN5-AN7 channels. The LF variant is rated to 4 MHz maximum at 2.0V; do not attempt to overclock beyond 4 MHz without checking the F877A silicon revision.
Thông tin tuân thủ
RoHS-compliant per distributor listings. The part is NOT AEC-Q100 qualified and is intended for industrial, consumer, and hobbyist applications; for AEC-Q100 automotive, designers should select a Microchip automotive-grade MCU instead.
