PIC16LF877-04/L - 8-Bit 4MHz PIC MCU 14KB Flash 44-PLCC | Microchip
MPN: PIC16LF877-04/L ✓ فعالPIC16LF877-04/L نمای کلی
An MCU (microcontroller unit) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and a rich set of peripherals (ADC, timers, communication ports, I/O) into one IC. The PIC16F family is Microchip's mid-range 8-bit line, sitting between the baseline PIC10/12/16 families and the enhanced PIC18 family in the broader microcontroller hierarchy: MCU -> 8-bit MCU -> PIC mid-range -> PIC16F. PIC16LF variants use a "low-power (LF)" process that supports operation down to 2.0 V.
Key features include 35 single-word instructions, an internal oscillator option, two 8-bit and one 16-bit timers, a Watchdog Timer with its own on-chip RC oscillator, 14 interrupt sources, USART, MSSP (SPI/I2C), and capture/compare/PWM modules. The 44-PLCC package supports through-hole or socketed mounting, easing prototyping and field replacement, while the industrial operating range of 0C to +70C suits commercial and light-industrial enclosures.
Typical applications include sensor signal conditioning with on-chip ADC, simple motor control via PWM, embedded control panels with USART-managed LCDs, and battery-powered instrumentation where the LF 2.0 V minimum extends runtime. The device also supports in-circuit serial programming (ICSP) for field updates.
Designers should note the 04 speed grade denotes 4 MHz; for higher throughput the -10 (10 MHz) or -20 (20 MHz) variants are recommended. Code compatibility across the PIC16F87x family allows migration to the PIC16F887, which Microchip recommends for new designs.
This page consolidates distributor pricing, pin-compatible PIC16LF877 family alternatives, and design notes not found in the manufacturer datasheet alone, giving engineers a single source for sourcing, substitution, and board bring-up decisions.
جایگزین‌های drop-in برای PIC16LF877-04/L — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای PIC16LF877-04/L (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, Timers, ADC, Core, Mounting Type.
PIC16LF877-04I/L
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16LF877-10/L
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
PIC16LF877-20/L
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
PIC16LF877A-I/L
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16F877-04/L
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16LF877-04/L حداکثر مقادیر مجاز و مشخصات الکتریکی
| Core | PIC16 |
| عرض گذرگاه داده | 8 bit |
| حداکثر فرکانس کلاک | 4 MHz |
| Program Memory Size | 14 KB (8K x 14) FLASH |
| Data RAM Size | 368 B |
| ADC Resolution | 10 bit |
| Number of I/Os | 33 |
| ولتاژ تغذیه کاری | 2.0 V to 5.5 V |
| Minimum Operating Temperature | 0 C |
| Maximum Operating Temperature | +70 C |
| بسته‌بندی | 44-PLCC (16.59 x 16.59 mm) |
| سبک نصب | SMD/SMT (PLCC socket-compatible) |
| Instruction Set | 35 single-word instructions |
| Instruction Execution Time | 200 ns |
| وضعیت RoHS | Compliant (per distributor listings) |
| Speed Grade | 04 (4 MHz) |
پیکربندی پین PIC16LF877-04/L
| پین 1 | MCLR/VPP — Master Clear (reset) input or ICSP programming voltage |
| پین 2 | RA0/AN0 — PORTA bit 0 / Analog input channel 0 |
| پین 3 | RA1/AN1 — PORTA bit 1 / Analog input channel 1 |
| پین 4 | RA2/AN2 — PORTA bit 2 / Analog input channel 2 |
| پین 5 | RA3/AN3/VREF+ — PORTA bit 3 / Analog input channel 3 / Positive reference voltage |
| پین 6 | RA4/T0CKI — PORTA bit 4 / Timer 0 clock input |
| پین 7 | RA5/AN4/SS — PORTA bit 5 / Analog input channel 4 / SPI slave select |
| پین 8 | RE0/RD/AN5 — PORTE bit 0 / Parallel port read / Analog input channel 5 |
| پین 9 | RE1/WR/AN6 — PORTE bit 1 / Parallel port write / Analog input channel 6 |
| پین 10 | RE2/CS/AN7 — PORTE bit 2 / Parallel port chip select / Analog input channel 7 |
| پین 11 | VDD — Positive supply voltage (2.0 V to 5.5 V) |
| پین 12 | VSS — Ground reference |
| پین 13 | OSC1/CLKI — Oscillator crystal input / External clock input |
| پین 14 | OSC2/CLKO — Oscillator crystal output / Clock output |
| پین 15 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| پین 16 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 PWM/capture |
| پین 17 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM/capture/compare |
| پین 18 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| پین 19 | RD0/PSP0 — PORTD bit 0 / Parallel Slave Port bit 0 |
| پین 20 | RD1/PSP1 — PORTD bit 1 / Parallel Slave Port bit 1 |
| پین 21 | RD2/PSP2 — PORTD bit 2 / Parallel Slave Port bit 2 |
| پین 22 | RD3/PSP3 — PORTD bit 3 / Parallel Slave Port bit 3 |
| پین 23 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| پین 24 | RC5/SDO — PORTC bit 5 / SPI data out |
| پین 25 | RC6/TX/CK — PORTC bit 6 / USART async transmit / USART sync clock |
| پین 26 | RC7/RX/DT — PORTC bit 7 / USART async receive / USART sync data |
| پین 27 | RD4/PSP4 — PORTD bit 4 / Parallel Slave Port bit 4 |
| پین 28 | RD5/PSP5 — PORTD bit 5 / Parallel Slave Port bit 5 |
| پین 29 | RD6/PSP6 — PORTD bit 6 / Parallel Slave Port bit 6 |
| پین 30 | RD7/PSP7 — PORTD bit 7 / Parallel Slave Port bit 7 |
| پین 31 | VSS — Ground reference |
| پین 32 | VDD — Positive supply voltage (2.0 V to 5.5 V) |
| پین 33 | RB0/INT — PORTB bit 0 / External interrupt |
| پین 34 | RB1 — PORTB bit 1 |
| پین 35 | RB2 — PORTB bit 2 |
| پین 36 | RB3/PGM — PORTB bit 3 / Low-voltage ICSP programming |
| پین 37 | RB4 — PORTB bit 4 |
| پین 38 | RB5 — PORTB bit 5 |
| پین 39 | RB6/PGC — PORTB bit 6 / ICSP clock (programming/debug clock) |
| پین 40 | RB7/PGD — PORTB bit 7 / ICSP data (programming/debug data) |
| پین 41 | NC — Not connected (per datasheet) |
| پین 42 | NC — Not connected (per datasheet) |
| پین 43 | NC — Not connected (per datasheet) |
| پین 44 | NC — Not connected (per datasheet) |
کاربردهای معمول
PIC16LF877-04/L مناسب است برای 6 کاربردs: Battery-Powered Sensor Node, Industrial Control Panel, Motor Speed Control (PWM), Educational / Hobbyist Development Platform, LCD Character Display Driver Board, Smart Home / IoT Edge Node.
Battery-Powered Sensor Node
The PIC16LF877-04/L's LF 2.0 V minimum supply and low-power CMOS process make it ideal for battery-powered sensor nodes powered from two AA cells or a single Li-primary cell. The integrated 10-bit ADC samples temperature, pressure, or humidity sensors with 8-channel mux support, while the 14 KB flash accommodates moderate firmware including filtering and Modbus or I2C protocols. Sleep current in the microamp range extends battery life to years in low-duty-cycle telemetry. The 200 ns instruction cycle at 4 MHz is more than adequate for 100 Hz sensor sampling with on-chip computation.
پیشنهادی
Industrial Control Panel
The PIC16LF877-04/L's 33 digital I/O lines and 44-PLCC socket-friendly package suit industrial control panels driving relays, LEDs, keypads, and character LCDs. The USART manages RS-232/RS-485 communication with HMI terminals, while the MSSP peripheral handles SPI EEPROM or I2C RTC expansion. PWM outputs from the Capture/Compare module drive motor speed or solenoid valves. Commercial 0C to +70C range covers factory-floor enclosures, and ICSP enables field firmware updates via a 2-wire programming header without removing the MCU from the panel.
پیشنهادی
Motor Speed Control (PWM)
The PIC16LF877-04/L's Capture/Compare/PWM (CCP) module delivers up to two PWM channels for DC motor speed control, with the 16-bit timer providing high-resolution PWM at low frequencies suitable for brushed DC or small stepper drivers. The 10-bit ADC reads back tachogenerator or Hall-sensor feedback for closed-loop control. The 4 MHz clock supports PWM frequencies up to ~20 kHz (above audible range), and the 44-PLCC package's thermal dissipation handles modest motor-driver gate-driving loads without external heatsinking.
پیشنهادی
Educational / Hobbyist Development Platform
The PIC16LF877-04/L's 44-PLCC socket-compatible package makes it ideal for educational labs and hobbyist prototyping where parts are repeatedly swapped and replaced. The 14 KB flash holds substantial student projects (sensor reading, display driving, communication), and the 35-instruction PIC16 instruction set is widely taught. MPLAB X IDE, XC8 compiler, and the PICKit programmer ecosystem provide free learning tools. The 10-bit ADC, multiple timers, and 33 I/O pins cover typical introductory embedded curricula including robotics, data acquisition, and IoT prototyping.
پیشنهادی
LCD Character Display Driver Board
The PIC16LF877-04/L frequently serves as the controller in HD44780-compatible character LCD interface boards, using its 8-bit PORTD to drive LCD data lines and PORTE for RS/RW/E control. The 14 KB flash holds multi-page menu logic, while 368 B RAM buffers display strings. The USART accepts commands from a host system, and the 4 MHz instruction rate provides more than enough throughput for 60 Hz display refresh. The LF 2.0-5.5 V supply matches both 3.3 V and 5 V LCD modules.
پیشنهادی
Smart Home / IoT Edge Node
The PIC16LF877-04/L acts as an edge MCU in IoT gateways, where its LF 2.0 V operation and 14 KB flash handle local sensor fusion before handing off to a higher-tier ESP32 or wireless module via UART. The 33 I/O lines interface with multiple sensor types simultaneously, and the MSSP peripheral drives SPI environmental sensors (BME280, MAX6675) while USART bridges to the radio module. The 44-PLCC package's socket compatibility eases field replacement when nodes fail, critical for distributed IoT deployments.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای PIC16LF877-04/L — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | PIC16LF877-04I/L | PIC16LF877-10/L | PIC16LF877-20/L | PIC16LF877A-I/L | PIC16F877-04/L |
|---|---|---|---|---|---|---|
| Package | 44-PLCC (L) - 16.59 x 16.59 mm | 44-PLCC (L) - same | 44-PLCC (L) - same | 44-PLCC (L) - same | 44-PLCC (L) - same | 44-PLCC (L) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Max Clock Frequency | 4 MHz | 4 MHz | 10 MHz | 20 MHz | 20 MHz | 4 MHz |
| Operating Voltage | 2.0 V to 5.5 V (LF) | 2.0 V to 5.5 V (LF) | 2.0 V to 5.5 V (LF) | 2.0 V to 5.5 V (LF) | 2.0 V to 5.5 V (LF) | 4.0 V to 5.5 V (F) |
| Program Memory | 14 KB Flash | 14 KB Flash | 14 KB Flash | 14 KB Flash | 14 KB Flash | 14 KB Flash |
| RAM | 368 B | 368 B | 368 B | 368 B | 368 B | 368 B |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| Operating Temperature | 0C to +70C (commercial) | -40C to +85C (industrial) | 0C to +70C (commercial) | 0C to +70C (commercial) | -40C to +85C (industrial) | 0C to +70C (commercial) |
| Pin Count | 44 | 44 | 44 | 44 | 44 | 44 |
تفاوت‌های کلیدی
- Low-voltage (LF) 2.0 V minimum supply (در مقابلPIC16F877-04/L)
- 44-PLCC socket-compatible package (در مقابلPIC16F877-04/PT (TQFP))
- Mature PIC16 mid-range instruction set (در مقابلPIC16F887 (newer recommended part))
یادداشت‌های طراحی
Place a 100 nF decoupling capacitor as close as possible to each VDD/VSS pair (pins 11/12 and 31/32). Add a bulk 10-100 uF electrolytic or tantalum at the board's power entry. The LF variant operates down to 2.0 V; verify your LDO or battery source can hold up under worst-case transient load (e.g., 33 I/O all sourcing 20 mA simultaneously). Estimated: at 5 V, 33 outputs active, transient current may reach 660 mA peak.
The 44-PLCC package's 1.27 mm pin pitch requires careful trace routing. Use 0.15-0.20 mm trace widths between PLCC pads to maintain manufacturability. Place a PLCC socket (e.g., 3M 44-pin PLCC) for prototype work to enable easy MCU swap and ICSP programming without soldering each board. Keep oscillator traces (OSC1/OSC2) short and surrounded by ground to minimize EMI.
Do NOT confuse the LF (2.0-5.5 V) variant with the F (4.0-5.5 V) variant when designing 3.3 V systems - the F variant will not operate below 4.0 V. When migrating PIC16LF877-04 to PIC16F887 (recommended by Microchip for new designs), note that the A-silicon revision changes peripheral addresses and interrupt vectors - firmware must be recompiled with the new header file. Do not exceed 5.5 V on VDD even for LF variants.
اطلاعات انطباق
RoHS compliance per Microchip product family standard. Not AEC-Q100 qualified (commercial-grade 0C to +70C); for automotive designs migrate to PIC16F877-I/P or PIC18F family with AEC-Q100.
