PIC16LF877T-04/L - 8-Bit MCU, 14KB Flash, 4MHz, 44-PLCC | Microchip
MPN: PIC16LF877T-04/L ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.95 | $18.95 |
| 10 | $17.1 | $171.00 |
| 100 | $15.25 | $1,525.00 |
| 500 | $13.85 | $6,925.00 |
| 1,000 | $12.5 | $12,500.00 |
PIC16LF877T-04/L Overview
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/Flash), data memory (RAM), and peripheral I/O on one die. The PIC16 family uses a Harvard RISC architecture with separate program and data buses, where each instruction executes in one clock cycle. Within the broader taxonomy, an 8-bit MCU sits below 16-bit and 32-bit microcontrollers in processing power but offers lower cost, simpler toolchains, and proven deterministic interrupt latency, making it ideal for cost-sensitive embedded control rather than high-throughput digital signal processing.
Key features include 33 digital I/O pins with individual direction control, a 10-bit multi-channel Analog-to-Digital Converter (ADC), three timer/counter modules (Timer0, Timer1, Timer2), a USART for asynchronous/synchronous serial communication, an MSSP port supporting SPI and I2C (master/slave), and capture/compare/PWM (CCP) peripherals. The integrated Brown-out Reset (BOR), Power-on Reset (POR), and Watchdog Timer (WDT) provide rugged field operation typical of industrial-grade embedded designs.
This device uses Microchip's nanoWatt Technology power management with multiple Idle and Sleep modes reducing quiescent current to microamp levels, suitable for battery-backed applications. The PIC16LF877T-04/L uses a 14-bit instruction word aligned with MPLAB X IDE, XC8 compiler, and the broad PIC16 ecosystem of application notes and reference designs.
Typical applications include industrial automation controllers, consumer electronics user interfaces, HVAC control boards, automotive body and accessory modules, sensor signal conditioning, and battery-powered instrumentation where low cost and deterministic real-time response are paramount.
When designing with the PIC16LF877T-04/L, reserve the OSC1/OSC2 pins for the crystal/oscillator, and use the dedicated MCLR reset pin with a proper pull-up. Decouple VDD/VSS pairs with 100 nF and bulk capacitors placed physically close to the device, and assign analog-input pins to the ADC peripheral to leverage the 10-bit conversion accuracy.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical engineering guidance not bundled in the manufacturer datasheet, helping engineers source the part confidently and accelerate board bring-up.
Drop-in alternatives for PIC16LF877T-04/L — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC16LF877T-04/L (same form factor and footprint) — differing in Package, Core, Operating Temperature, ADC, Program Memory Size.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF877-04/L
✅ Drop-In✓ In Stock
$5.85 / Unit
View Datasheet →PIC16LF877-04I/L
✅ Drop-In✓ In Stock
$6.35 / Unit
View Datasheet →PIC16LF877-04/PQ
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC16LF877A-I/L
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC16LF877T-04I/L
✅ Drop-In✓ In Stock
$7.3 / Unit
View Datasheet →PIC16LF877T-04/L Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC RISC 8-bit Harvard |
| Program Memory Type | Flash |
| Program Memory Size | 14 KB (8K x 14) |
| Data RAM | 368 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Frequency | 4 MHz |
| Instruction Cycle Time | 1 µs (4 clock instructions) |
| Supply Voltage (VDD) | 2.0 V to 5.5 V |
| Digital I/O Pins | 33 |
| ADC | 10-bit, 8 channels |
| Timers | 3 (Timer0, Timer1, Timer2) |
| Serial Interfaces | USART, SPI, I2C (MSSP) |
| CCP Modules | 2 (Capture/Compare/PWM) |
| Operating Temperature | 0 °C to +70 °C (Commercial) |
| Package | 44-pin PLCC (16.59 x 16.59 mm) |
| Mounting Type | Surface Mount |
| Watchdog Timer | Yes |
| Brown-out Reset (BOR) | Yes |
| Power-on Reset (POR) | Yes |
| RoHS Status | Compliant |
PIC16LF877T-04/L Pin Configuration
| Pin 1 | MCLR/VPP — Master Clear (Reset) input or programming voltage |
| Pin 2 | RA0/AN0 — PORTA bit 0 / Analog input channel 0 |
| Pin 3 | RA1/AN1 — PORTA bit 1 / Analog input channel 1 |
| Pin 4 | RA2/AN2 — PORTA bit 2 / Analog input channel 2 |
| Pin 5 | RA3/AN3/VREF+ — PORTA bit 3 / Analog input channel 3 / ADC reference voltage |
| Pin 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Pin 7 | RA5/AN4/SS — PORTA bit 5 / Analog input channel 4 / SPI slave select |
| Pin 8 | RE0/RD/AN5 — PORTE bit 0 / Read control for parallel slave port / Analog input 5 |
| Pin 9 | RE1/WR/AN6 — PORTE bit 1 / Write control for PSP / Analog input 6 |
| Pin 10 | RE2/CS/AN7 — PORTE bit 2 / Chip select for PSP / Analog input 7 |
| Pin 11 | VDD — Positive supply voltage (2.0–5.5 V) |
| Pin 12 | VSS — Ground reference |
| Pin 13 | OSC1/CLKIN — Crystal oscillator input or external clock input |
| Pin 14 | OSC2/CLKOUT — Crystal oscillator output or clock output |
| Pin 15 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output or clock input |
| Pin 16 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 PWM output |
| Pin 17 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM/capture/compare output |
| Pin 18 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pin 19 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pin 20 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pin 21 | RC6/TX/CK — PORTC bit 6 / USART asynchronous transmit or clock |
| Pin 22 | RC7/RX/DT — PORTC bit 7 / USART asynchronous receive or data |
| Pin 23 | RB0/INT — PORTB bit 0 / External interrupt input |
| Pin 24 | RB1 — PORTB bit 1 |
| Pin 25 | RB2 — PORTB bit 2 |
| Pin 26 | RB3/PGM — PORTB bit 3 / Low-voltage programming enable |
| Pin 27 | RB4 — PORTB bit 4 |
| Pin 28 | RB5 — PORTB bit 5 |
| Pin 29 | RB6/PGC — PORTB bit 6 / ICSP clock / ICD clock |
| Pin 30 | RB7/PGD — PORTB bit 7 / ICSP data / ICD data |
| Pin 31 | VSS — Ground reference |
| Pin 32 | VDD — Positive supply voltage (2.0–5.5 V) |
| Pin 33 | RD0/PSP0 — PORTD bit 0 / Parallel Slave Port bit 0 |
| Pin 34 | RD1/PSP1 — PORTD bit 1 / Parallel Slave Port bit 1 |
| Pin 35 | RD2/PSP2 — PORTD bit 2 / Parallel Slave Port bit 2 |
| Pin 36 | RD3/PSP3 — PORTD bit 3 / Parallel Slave Port bit 3 |
| Pin 37 | RD4/PSP4 — PORTD bit 4 / Parallel Slave Port bit 4 |
| Pin 38 | RD5/PSP5 — PORTD bit 5 / Parallel Slave Port bit 5 |
| Pin 39 | RD6/PSP6 — PORTD bit 6 / Parallel Slave Port bit 6 |
| Pin 40 | RD7/PSP7 — PORTD bit 7 / Parallel Slave Port bit 7 |
| Pin 41 | VSS — Ground reference |
| Pin 42 | VDD — Positive supply voltage (2.0–5.5 V) |
| Pin 43 | VSS — Ground reference |
| Pin 44 | VDD — Positive supply voltage (2.0–5.5 V) |
Typical Applications
PIC16LF877T-04/L is suitable for 6 applications: Industrial Automation Controller, Consumer Electronics User Interface, HVAC Control Board, Automotive Body and Accessory Module, Sensor Signal Conditioning and Logging, Battery-Powered Instrumentation.
Industrial Automation Controller
The PIC16LF877T-04/L is well-suited for industrial PLC and machine-control modules where deterministic 1 µs instruction cycle and 33 digital I/O pins drive relays, contactors, and indicator panels. Its 10-bit 8-channel ADC reads 4–20 mA transducer signals through current-sense resistors, and the USART links to a master HMI or SCADA node. Brown-out reset and watchdog timer ensure recovery from ESD events and supply brownouts common on factory floors. With 14 KB of Flash, the device accommodates state-machine logic, PID loop, and Modbus firmware common to industrial controllers.
Recommended
Consumer Electronics User Interface
For consumer HMI boards such as coffee machines, washing machines, and microwave ovens, the PIC16LF877T-04/L provides enough Flash and RAM to drive 7-segment displays, scan a 4x4 keypad matrix, and run menu firmware. The 10-bit ADC reads thermistor/resistive-sensor inputs for temperature, humidity, or weight sensing. The CCP peripherals generate PWM for buzzer tones and indicator dimming, and the wide 2.0–5.5 V supply range supports single-cell NiMH and 5 V mains-powered designs. Development is simplified by MPLAB X IDE and XC8 compatibility.
Recommended
HVAC Control Board
HVAC thermostat and air-handler boards benefit from the PIC16LF877T-04/L's 33 I/O pins to scan NTC thermistors, drive triac outputs for fan and compressor stages, and drive a character LCD. The 10-bit ADC provides enough resolution for room-temperature sensing, and the MSSP peripheral supports I2C communication with external humidity sensors and EEPROM memories. Brown-out reset maintains correct operation across the broad voltage fluctuations typical of HVAC transformers. The wide 2.0–5.5 V supply accommodates both 24 VAC rectified rails and 3.3 V system designs.
Recommended
Automotive Body and Accessory Module
Interior automotive modules such as lighting controllers, seat-position memories, mirror adjusters, and accessory timers fit the PIC16LF877T-04/L profile. The 33 I/O drives LED backlighting via PWM and reads switch matrixes via the digital port change interrupts. The 10-bit ADC measures battery voltage and ambient light sensor inputs. For under-hood or safety-critical modules requiring -40 °C to +125 °C, designers should select AEC-Q100-qualified parts; the PIC16LF877T-04/L commercial grade is acceptable for cabin-temperature accessory modules per OEM validation procedures.
Recommended
Sensor Signal Conditioning and Logging
Stand-alone data-acquisition front-ends use the PIC16LF877T-04/L to read multiple sensors via the 10-bit ADC, timestamp values via the Timer1 module, and log to external EEPROM through I2C. The 14 KB Flash supports calibration tables, linearization math, and a small command-line parser via the USART. With nanoWatt sleep modes drawing microamp-level quiescent current, battery-powered remote sensor nodes achieve months of operating life. Brown-out reset prevents corruption of in-progress writes during supply dips common in remote installations.
Recommended
Battery-Powered Instrumentation
Portable measurement instruments using the PIC16LF877T-04/L benefit from its wide 2.0 V to 5.5 V supply range and nanoWatt technology sleep modes, allowing operation from two AA cells or rechargeable Li-Ion packs. The ADC and op-amp peripheral chain capture sensor data, the USART streams readings to a Bluetooth or USB bridge, and the CCP module generates PWM for display backlighting. The 14 KB Flash supports lookup tables for sensor linearization, while 256 bytes of EEPROM retains user calibration between battery swaps.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF877T-04/L — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF877-04/L | PIC16LF877-04I/L | PIC16LF877A-I/L | PIC16LF877T-04I/L |
|---|---|---|---|---|---|
| Package | 44-PLCC | 44-PLCC - same | 44-PLCC - same | 44-PLCC - same | 44-PLCC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Max CPU Frequency | 4 MHz | 4 MHz | 4 MHz | 20 MHz | 4 MHz |
| Flash Memory | 14 KB | 14 KB | 14 KB | 14 KB | 14 KB |
| 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 |
| Operating Temperature | 0 °C to +70 °C | 0 °C to +70 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C |
| ADC Resolution | 10-bit, 8 channels | 10-bit, 8 channels | 10-bit, 8 channels | 10-bit, 14 channels | 10-bit, 8 channels |
| EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| Packaging Format | Tape & Reel | Tube | Tube | Tube | Tape & Reel |
Key Differentiators
- Tape and Reel packaging suitable for SMT assembly lines (vs PIC16LF877-04/L)
- Higher ADC channel count on the A-suffix siblings (vs PIC16LF877A-I/L)
- Industrial temperature grade with same silicon die (vs PIC16LF877T-04I/L)
Design Notes
Place 100 nF ceramic decoupling capacitors as close as possible to each VDD/VSS pair on the 44-PLCC, ideally within 3 mm trace length. The PLCC package exposes VDD on pins 11, 32, 42, 44 and VSS on pins 12, 31, 41, 43; use a four-pole decoupling layout to handle simultaneous switching noise. Estimated: with all 33 I/O pins driving 20 mA simultaneously, supply droop without decoupling may exceed 200 mV, enough to disrupt ADC conversions.
The MCLR pin (pin 1) requires a 10 kΩ pull-up to VDD for proper reset behavior; some legacy designs tied MCLR directly to VDD which can cause unreliable startup. The RB3/PGM pin must NOT be pulled low during normal operation unless entering Low-Voltage Programming mode. Use a 10 µF capacitor in parallel with the MCLR pull-up to filter noise on industrial supply rails.
When the ADC is enabled, configure digital I/O pins driving high-speed signals as inputs or outputs ONLY, never leave them floating; floating analog-input channels can inject noise into the ADC's sample-and-hold capacitor. According to the datasheet, set the A/D control register to disable unused analog channels to reduce leakage current. Estimated: a floating analog pin adds 1–5 LSBs of ADC noise.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - choose PIC16LF877A automotive variants for AEC-Q100 needs.
