PIC16LF877T-04I/L - 8-bit 4MHz MCU 14KB FLASH 44-PLCC | Microchip
MPN: PIC16LF877T-04I/L ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $11.42 | $11.42 |
| 10 | $10.27 | $102.70 |
| 100 | $9.13 | $913.00 |
| 500 | $8.21 | $4,105.00 |
| 1,000 | $7.3 | $7,300.00 |
PIC16LF877T-04I/L Overview
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.
Drop-in alternatives for PIC16LF877T-04I/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-04I/L (same form factor and footprint) — differing in Package, ADC, Core, Mounting Type, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF877-04I/L
✅ Drop-In✓ In Stock
$6.35 / Unit
View Datasheet →PIC16LF877T-04/L
✅ Drop-In✓ In Stock
$12.5 / Unit
View Datasheet →PIC16LF877-04/L
✅ Drop-In✓ In Stock
$5.85 / Unit
View Datasheet →PIC16LF877T-04I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF877A-I/L
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC16LF877T-04I/L Maximum Ratings & Electrical Characteristics
| 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 |
| Maximum Clock Frequency | 4 MHz |
| Operating Supply Voltage | 2.0 V to 5.5 V |
| Number of I/O Pins | 33 |
| ADC | 10-bit, 8 channels |
| Data Bus Width | 8 bit |
| Operating Temperature Range | -40 °C to +85 °C (industrial) |
| Package / Case | 44-PLCC (J-Lead, 16.59 x 16.59 mm) |
| Mounting Style | 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) |
| RoHS Status | Compliant |
PIC16LF877T-04I/L Pin Configuration
| Pin 1 | MCLR/VPP — Master Clear (reset) input / 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/VREF- — PORTA bit 2 / Analog input 2 / ADC VREF- |
| Pin 5 | RA3/AN3/VREF+ — PORTA bit 3 / Analog input 3 / ADC VREF+ |
| Pin 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Pin 7 | RA5/AN4/SS — PORTA bit 5 / Analog input 4 / SPI slave select |
| Pin 8 | RE0/RD/AN5 — PORTE bit 0 / Parallel slave port read / Analog input 5 |
| Pin 9 | RE1/WR/AN6 — PORTE bit 1 / Parallel slave port write / Analog input 6 |
| Pin 10 | RE2/CS/AN7 — PORTE bit 2 / Parallel slave port chip select / Analog input 7 |
| Pin 11 | VDD — Positive supply (2.0V to 5.5V) |
| Pin 12 | VSS — Ground reference |
| Pin 13 | OSC1/CLKIN — Crystal oscillator input / external clock input |
| Pin 14 | OSC2/CLKOUT — Crystal oscillator output / clock output |
| Pin 15 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator out / Timer1 clock in |
| Pin 16 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator in / Capture/Compare/PWM 2 |
| Pin 17 | RC2/CCP1 — PORTC bit 2 / Capture/Compare/PWM 1 |
| 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 / EUSART TX / EUSART clock |
| Pin 22 | RC7/RX/DT — PORTC bit 7 / EUSART RX / EUSART data |
| Pin 23 | RD0/PSP0 — PORTD bit 0 / Parallel slave port data bit 0 |
| Pin 24 | RD1/PSP1 — PORTD bit 1 / Parallel slave port data bit 1 |
| Pin 25 | RD2/PSP2 — PORTD bit 2 / Parallel slave port data bit 2 |
| Pin 26 | RD3/PSP3 — PORTD bit 3 / Parallel slave port data bit 3 |
| Pin 27 | RD4/PSP4 — PORTD bit 4 / Parallel slave port data bit 4 |
| Pin 28 | RD5/PSP5 — PORTD bit 5 / Parallel slave port data bit 5 |
| Pin 29 | RD6/PSP6 — PORTD bit 6 / Parallel slave port data bit 6 |
| Pin 30 | RD7/PSP7 — PORTD bit 7 / Parallel slave port data bit 7 |
| Pin 31 | VSS — Ground reference |
| Pin 32 | VDD — Positive supply (2.0V to 5.5V) |
| Pin 33 | RB0/INT — PORTB bit 0 / External interrupt |
| Pin 34 | RB1 — PORTB bit 1 |
| Pin 35 | RB2 — PORTB bit 2 |
| Pin 36 | RB3/PGM — PORTB bit 3 / Low-voltage programming |
| Pin 37 | RB4 — PORTB bit 4 |
| Pin 38 | RB5/PGM — PORTB bit 5 / Programming pin |
| Pin 39 | RB6/PGC — PORTB bit 6 / In-circuit debugger clock |
| Pin 40 | RB7/PGD — PORTB bit 7 / In-circuit debugger data |
| Pin 41 | NC — Not connected (per PLCC-44 footprint) |
| Pin 42 | NC — Not connected (per PLCC-44 footprint) |
| Pin 43 | NC — Not connected (per PLCC-44 footprint) |
| Pin 44 | NC — Not connected (per PLCC-44 footprint) |
Typical Applications
PIC16LF877T-04I/L is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF877T-04I/L — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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) |
Key Differentiators
- 44-PLCC surface-mount package on industrial temperature grade (vs PIC16LF877T-04/L)
- Tape-and-Reel packaging for high-volume SMT assembly (vs PIC16LF877-04I/L)
- Wide 2.0V to 5.5V operation including 3.3V battery systems (vs PIC16F877A-I/L)
Design Notes
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.
Compliance Information
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.
