PIC16LF77T-I/L - 8-Bit 20MHz 14KB Flash MCU | Microchip | PLCC-44
MPN: PIC16LF77T-I/L ✓ فعالPIC16LF77T-I/L جائزہ
What is a PIC16 microcontroller? A PIC16 is an 8-bit RISC microcontroller from Microchip's mid-range (PIC14/16) family - a 'reduced instruction set' CPU with 35 single-word instructions, hardware multiplier on the 'F77' sub-family, 14-bit instruction word, and a Harvard architecture that separates program and data memory. Within the broader taxonomy, the PIC16LF77 sits under PIC16 mid-range -> PIC12/16/18 8-bit -> 8-bit microcontroller -> microcontroller -> embedded processor -> semiconductor. It is widely used as a stepping stone between PIC12 baseline parts and PIC18 enhanced parts, providing moderate performance with low cost.
The PIC16LF77T-I/L features 8-channel 8-bit ADC, two 8-bit timer/counters plus one 16-bit timer/counter, a Synchronous Serial Port (SSP) supporting SPI and I2C, a Universal Synchronous Asynchronous Receiver Transmitter (USART), a Capture/Compare/PWM (CCP) module, and 256 bytes of EEPROM data memory. Its 8-bit Harvard core with hardware multiply enables efficient C and assembly code generation, while 14-bit instruction width gives compact code density.
Typical applications include industrial control and sensor interfacing, automotive body electronics, home appliance control boards, low-power battery instrumentation, and embedded controls requiring ADC and serial connectivity. The wide 2.0 V to 5.5 V range and low-power 'LF' silicon also support portable and battery-backed systems.
When designing with this part, note that PIC16F77 mid-range devices use the same pinout across 40-pin DIP and 44-pin PLCC packages, but the I/O count differs - verify that 33 I/O pins are sufficient for your design. The 'T' suffix indicates tape and reel packaging, while 'I' denotes the industrial -40C to +85C temperature grade.
This page synthesizes distributor pricing from DigiKey and Mouser, drop-in alternatives across Microchip's mid-range family, and practical design notes not found on a single manufacturer page - making it a one-stop decision guide for engineers selecting an 8-bit MCU for new designs or legacy migrations.
کے لیے ڈراپ اِن متبادل PIC16LF77T-I/L — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں PIC16LF77T-I/L (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, ADC, Operating Temperature, Timers, CCP Modules.
PIC16LF77-I/L
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16LF74-I/L
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16LF77T-I/L زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Architecture | PIC16 mid-range 8-bit RISC |
| Instruction Set | 35 single-word instructions (14-bit wide) |
| Program Memory (Flash) | 14 KB (8K x 14) |
| RAM | 368 bytes |
| EEPROM Data Memory | 256 bytes |
| Maximum CPU Frequency | 20 MHz (200 ns instruction cycle) |
| Operating Voltage Range (LF) | 2.0 V to 5.5 V |
| I/O Pins | 33 |
| ADC | 8-channel, 8-bit |
| Timers | 2 x 8-bit + 1 x 16-bit |
| Serial Interfaces | USART, SSP (SPI / I2C) |
| CCP Modules | 1 (Capture/Compare/PWM) |
| پیکیج | PLCC-44 (16.59 x 16.59 mm) |
| آپریٹنگ درجہ حرارت | -40C to +85C (industrial grade 'I') |
| Packaging | Tape and Reel ('T' suffix) |
| RoHS اسٹیٹس | Compliant |
PIC16LF77T-I/L پن کنفیگریشن
| پن 1 | MCLR/VPP — Master Clear (reset) input / programming voltage |
| پن 2 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| پن 3 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| پن 4 | RA2/AN2 — PORTA bit 2 / analog input 2 |
| پن 5 | RA3/AN3/VREF+ — PORTA bit 3 / analog input 3 / ADC reference positive |
| پن 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| پن 7 | RA5/AN4/SS — PORTA bit 5 / analog input 4 / SPI slave select |
| پن 8 | AVSS — Analog ground |
| پن 9 | AVDD — Analog positive supply |
| پن 10 | VSS — Digital ground |
| پن 11 | VDD — Digital positive supply |
| پن 12 | OSC1/CLKI — Oscillator crystal input / external clock in |
| پن 13 | OSC2/CLKO — Oscillator crystal output / clock out |
| پن 14 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| پن 15 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 |
| پن 16 | RC2/CCP1 — PORTC bit 2 / Capture Compare PWM 1 |
| پن 17 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| پن 18 | RD0/PSP0 — PORTD bit 0 / Parallel Slave Port bit 0 |
| پن 19 | RD1/PSP1 — PORTD bit 1 / Parallel Slave Port bit 1 |
| پن 20 | RD2/PSP2 — PORTD bit 2 / Parallel Slave Port bit 2 |
| پن 21 | RD3/PSP3 — PORTD bit 3 / Parallel Slave Port bit 3 |
| پن 22 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| پن 23 | RC5/SDO — PORTC bit 5 / SPI data out |
| پن 24 | RC6/TX/CK — PORTC bit 6 / USART transmit / USART clock |
| پن 25 | RC7/RX/DT — PORTC bit 7 / USART receive / USART data |
| پن 26 | RD4/PSP4 — PORTD bit 4 / Parallel Slave Port bit 4 |
| پن 27 | RD5/PSP5 — PORTD bit 5 / Parallel Slave Port bit 5 |
| پن 28 | RD6/PSP6 — PORTD bit 6 / Parallel Slave Port bit 6 |
| پن 29 | RD7/PSP7 — PORTD bit 7 / Parallel Slave Port bit 7 |
| پن 30 | VSS — Digital ground |
| پن 31 | VDD — Digital positive supply |
| پن 32 | RB0/INT — PORTB bit 0 / external interrupt |
| پن 33 | RB1 — PORTB bit 1 |
| پن 34 | RB2 — PORTB bit 2 |
| پن 35 | RB3/PGM — PORTB bit 3 / low-voltage programming |
| پن 36 | RB4 — PORTB bit 4 |
| پن 37 | RB5 — PORTB bit 5 |
| پن 38 | RB6/PGC — PORTB bit 6 / ICSP clock |
| پن 39 | RB7/PGD — PORTB bit 7 / ICSP data |
| پن 40 | RE0/RD/AN5 — PORTE bit 0 / read control / analog input 5 |
| پن 41 | RE1/WR/AN6 — PORTE bit 1 / write control / analog input 6 |
| پن 42 | RE2/CS/AN7 — PORTE bit 2 / chip select / analog input 7 |
| پن 43 | NC — Not connected (per datasheet) |
| پن 44 | NC — Not connected (per datasheet) |
عام استعمالات
PIC16LF77T-I/L کے لیے موزوں ہے 6 ایپلیکیشنs: Industrial Sensor Interface Board, Automotive Body Electronics Module, Home Appliance Control Board, Battery-Powered Data Logger, HVAC Thermostat and Zone Controller, Educational and Hobbyist Embedded Platform.
Industrial Sensor Interface Board
The PIC16LF77T-I/L fits industrial sensor interface boards because its 8-channel 8-bit ADC, 33 I/O pins, and 2.0 V to 5.5 V operating range (LF silicon) cover the typical analog-front-end plus digital-control block for 4-20 mA loop, thermistor, and bridge-sensor conditioning. Its 14 KB flash holds the calibration tables and protocol state machine for Modbus RTU or HART stacks. Running at 20 MHz with a 200 ns instruction cycle, the part can poll 8 sensors at sub-millisecond rates while maintaining UART response. Place the MCU between the sensor conditioning op-amps and the RS-485 transceiver. Use a 10 uF tantalum plus 0.1 uF ceramic on VDD, and a ferrite bead on AVSS/AVDD to isolate analog noise from the digital switching noise of the USART. Per the Microchip PIC16F7X datasheet, the LF silicon provides brown-out detect and low-power sleep for battery-backed sensor nodes.
تجویز کردہ
Automotive Body Electronics Module
The PIC16LF77T-I/L supports automotive body modules such as lighting controllers, door modules, and seat controllers where moderate processing, PWM, and serial comms are required without the cost of a 32-bit MCU. Its 33 I/O pins drive multiple LED drivers, the CCP module provides PWM dimming, and the 2.0 V to 5.5 V 'LF' range tolerates automotive cranking transients down to ~6 V regulated rails. Note that this part is NOT AEC-Q100 qualified - for AEC-Q100 automotive, choose PIC16F77-I/L automotive variants or the PIC16F1939 family. The 14 KB flash accommodates CAN or LIN protocol stacks plus state-machine logic. Per the Microchip PIC16F7X datasheet (DS30391E), the -40C to +85C industrial temperature grade suits under-dash and cabin environments.
تجویز کردہ
Home Appliance Control Board
The PIC16LF77T-I/L is well-suited for washing-machine, dishwasher, and microwave front-panel controllers where cost dominates and the application requires a user interface (LEDs, switches), a small display driver, and relay/triac switching logic. The 33 I/O pins connect to a 4x4 keypad matrix, a multiplexed 7-segment display, and 8 to 16 triac outputs. The 14 KB flash holds appliance state-machine firmware and EEPROM 256 bytes store user settings (cycle, temperature). The 2.0 V to 5.5 V LF silicon keeps the MCU alive across line-voltage brown-outs. Per the Microchip PIC16F7X datasheet, the SSP (SPI / I2C) interface drives LED drivers and EEPROM memories, and the USART supports diagnostic or Wi-Fi module comms for smart-appliance variants.
تجویز کردہ
Battery-Powered Data Logger
The PIC16LF77T-I/L fits battery-powered data loggers because its 'LF' silicon (2.0 V to 5.5 V) extends runtime from a 3.6 V lithium primary cell down to 2.0 V cut-off, and its low-power sleep modes minimize quiescent draw between ADC samples. With 14 KB flash it can hold a small RTOS or a polling scheduler; 368 bytes RAM buffers sensor bursts; 256 bytes EEPROM stores calibration constants across power cycles. The 8-channel 8-bit ADC reads battery voltage plus 7 environmental sensors (temperature, humidity, pressure). Per the Microchip PIC16F7X datasheet (DS30391E), the watchdog timer and brown-out reset protect log integrity during battery sag, and the USART interfaces to an external Bluetooth or LoRa radio for offload.
تجویز کردہ
HVAC Thermostat and Zone Controller
The PIC16LF77T-I/L works in residential and light-commercial HVAC thermostats where it must read temperature/humidity sensors, drive an LCD or OLED, control relays and TRIACs for HVAC stages, and provide user interface (buttons, encoder, BLE option). The 33 I/O pins handle 4 to 6 relay outputs plus a 4x4 keypad plus an LCD interface; the ADC reads onboard NTC plus remote temperature probes; the USART drives a Wi-Fi/BLE module for cloud-connected thermostats. The 14 KB flash accommodates scheduling firmware (7-day, 4 periods per day), EEPROM 256 bytes store user schedules across power cycles, and the 'LF' 2.0 V to 5.5 V range keeps RTC alive during brief brown-outs. Per the Microchip PIC16F7X datasheet, the CCP module generates PWM for variable-speed fan control.
تجویز کردہ
Educational and Hobbyist Embedded Platform
The PIC16LF77T-I/L remains popular in university embedded-systems courses and hobbyist projects because the PIC16 mid-range architecture has the simplest instruction set (35 instructions), abundant free tutorials, and full MPLAB X IDE + XC8 compiler support. Students can program 14 KB of flash with C code, exercise the 8-channel ADC for sensor labs, drive the CCP PWM for motor-speed control, and use the USART + SSP for serial protocol labs. The 44-pin PLCC is breadboard-friendly with PLCC-to-DIP adapters, while the LF silicon's 2.0 V to 5.5 V range lets students power from 2x AA cells. Per the Microchip PIC16F7X datasheet (DS30391E), the PICkit 3 / PICkit 4 programmer/debugger supports in-circuit programming and debugging across the entire PIC16F7X family, making this part an excellent teaching vehicle.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16LF77T-I/L — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16LF77-I/L | PIC16LF74-I/L | PIC16LF747-I/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | PLCC-44 (16.59 x 16.59 mm) | PLCC-44 (same) | PLCC-44 (same) | TQFP-44 (different) |
| Core Architecture | PIC16 mid-range 8-bit | PIC16 mid-range 8-bit | PIC16 mid-range 8-bit | PIC16 mid-range 8-bit |
| Program Memory (Flash) | 14 KB | 14 KB | 7 KB | 7 KB |
| RAM | 368 bytes | 368 bytes | 192 bytes | 192 bytes |
| I/O Pins | 33 | 33 | 22 | 36 |
| ADC | 8-channel, 8-bit | 8-channel, 8-bit | 5-channel, 8-bit | 14-channel, 8-bit |
| Operating Voltage (LF) | 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 |
| Maximum Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
اہم امتیازی خصوصیات
- Lower-voltage LF silicon variant (بمقابلہPIC16F77-I/L)
- Higher flash and I/O count vs PIC16LF74 (بمقابلہPIC16LF74-I/L)
- 8-channel ADC vs 5-channel on PIC16LF74 (بمقابلہPIC16LF74-I/L)
ڈیزائن نوٹس
The PIC16LF77T-I/L 'LF' silicon operates from 2.0 V to 5.5 V. Apply a 10 uF bulk + 0.1 uF ceramic decoupling pair within 5 mm of VDD (pin 11 and pin 31), and a separate 0.1 uF + 10 uF pair on AVDD (pin 9). Tie AVSS (pin 8) to VSS with a ferrite bead for ADC accuracy. Per the Microchip PIC16F7X datasheet, brown-out reset (BOR) and low-voltage programming (LVP) defaults may need configuration word adjustments.
The 44-pin PLCC footprint uses 1.27 mm pitch pads on a 16.59 x 16.59 mm body. Reserve a 4-layer PCB stack with continuous ground plane under the MCU for low EMI. Keep the crystal (or resonator) within 5 mm of OSC1/OSC2 (pins 12 and 13); ground the crystal case to the digital ground plane with a short bond. Trace MCLR (pin 1) directly to the reset network - keep this trace short and away from switching nodes to avoid spurious resets.
Common pitfalls with PIC16LF77T-I/L: (1) Confusing the 'LF' (low-voltage) variant with the standard 'F' PIC16F77 - the LF has 2.0 V min, the F has 4.0 V min. (2) Forgetting that the 44-pin PLCC pinout differs from the 40-pin DIP pinout - the PLCC has additional PORTD and PORTE pins. (3) ICSP pins RB6/RB7/RB3 are shared with PORTB - add isolation resistors if those pins drive external loads during programming. (4) The 'T' suffix means tape and reel - prototypes should order the non-T variant in tube.
تعمیل کی معلومات
RoHS compliant per Microchip product page. NOT AEC-Q100 qualified - for automotive applications, evaluate PIC16F77-I/L automotive variants or newer PIC16F1939 family. Halogen-free and lead-free per Microchip packaging materials datasheet.
