PIC16LF77T-I/ML - 8-bit MCU 14KB Flash 20MHz 44-QFN | Microchip
부품 번호: PIC16LF77T-I/ML ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $7.45 | $7.45 |
| 10 | $6.71 | $67.10 |
| 100 | $5.96 | $596.00 |
| 500 | $5.36 | $2,680.00 |
| 1,000 | $4.77 | $4,770.00 |
PIC16LF77T-I/ML 개요
An 8-bit flash microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile flash program memory, data RAM, and peripherals on one die. PIC16-family MCUs sit in the hierarchy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. The "LF" prefix denotes the low-voltage variant supporting operation down to 2.0 V, distinguishing it from the standard "F" parts that require a higher minimum supply.
Key features include 14 KB flash program memory (typically 8 K x 14 words), 368 bytes data RAM, 256 bytes EEPROM data memory, three timers, two capture/compare/PWM (CCP) modules, a 10-bit multi-channel analog-to-digital converter (ADC), and a USART with LIN support. The instruction set is 14-bit-wide RISC, with most instructions executing in a single 200 ns cycle at 20 MHz.
Typical applications include industrial control panels, low-power sensor nodes, automotive body electronics, appliance controllers, and embedded instrumentation where moderate processing throughput, generous flash, and a compact 44-QFN footprint are required. The exposed thermal pad (EP) on the QFN package improves power dissipation compared to equivalent QFP packages.
When designing with this part, ensure the decoupling capacitor is placed within 5 mm of the VDD pin, and route the MCLR reset line away from switching nodes to avoid inadvertent resets. The "T" suffix denotes tape-and-reel packaging, and "I" denotes the industrial -40C to +85C operating temperature range.
This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and practical design notes that go beyond what is found in the manufacturer datasheet alone.
드롭인 대체품: PIC16LF77T-I/ML — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: PIC16LF77T-I/ML (동일 폼 팩터 및 풋프린트) — 차이점: Package, ADC, Timers, Operating Temperature, Maximum CPU Frequency.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
PIC16LF777T-I/ML
✅ 드롭인✓ 재고 있음
$2.84 / 개
데이터시트 보기 →PIC16LF77-I/L
✅ 드롭인✓ 재고 있음
$5.4 / 개
데이터시트 보기 →PIC16LF77T-I/L
✅ 드롭인✓ 재고 있음
$6.2 / 개
데이터시트 보기 →PIC16LF777-I/ML
✅ 드롭인✓ 재고 있음
$3.05 / 개
데이터시트 보기 →PIC16LF767-I/ML
✅ 드롭인✓ 재고 있음
$2.74 / 개
데이터시트 보기 →PIC16LF77T-I/ML 최대 정격 & 전기적 특성
| Architecture | 8-bit PIC16 RISC |
| Program Memory (Flash) | 14 KB |
| Data RAM | 368 bytes |
| EEPROM | 256 bytes |
| 최대 클록 주파수 | 20 MHz |
| Supply Voltage (VDD) | 2.0 V to 5.5 V |
| I/O Pins | 33 |
| ADC | 10-bit, 8 channels |
| Timers | 3 (Timer0, Timer1, Timer2) |
| CCP Modules | 2 |
| Serial Interfaces | USART (LIN-capable), MSSP (SPI/I2C) |
| 패키지 | 44-pin QFN (ML) with exposed pad |
| 동작 온도 | -40C to +85C (industrial) |
| 실장 유형 | Surface Mount |
| MSL 레벨 | 3 (168 hours) |
| Lead-Free / RoHS | Lead-free, RoHS compliant |
PIC16LF77T-I/ML 핀 구성
| 핀 1 | RA0/AN0 — Digital I/O / Analog input channel 0 |
| 핀 2 | RA1/AN1 — Digital I/O / Analog input channel 1 |
| 핀 3 | RA2/AN2/VREF- — Digital I/O / Analog input 2 / ADC VREF- |
| 핀 4 | RA3/AN3/VREF+ — Digital I/O / Analog input 3 / ADC VREF+ |
| 핀 5 | RA4/T0CKI — Digital I/O / Timer0 clock input |
| 핀 6 | RA5/AN4/SS — Digital I/O / Analog input 4 / SPI slave select |
| 핀 7 | OSC1/CLKIN — Oscillator input / external clock |
| 핀 8 | OSC2/CLKOUT — Oscillator output |
| 핀 9 | RC0/T1OSO/T1CKI — Digital I/O / Timer1 oscillator output |
| 핀 10 | RC1/T1OSI/CCP2 — Digital I/O / Timer1 oscillator / CCP2 |
| 핀 11 | RC2/CCP1 — Digital I/O / CCP1 output |
| 핀 12 | RC3/SCK/SCL — Digital I/O / SPI SCK / I2C SCL |
| 핀 13 | RC4/SDI/SDA — Digital I/O / SPI SDI / I2C SDA |
| 핀 14 | RC5/SDO — Digital I/O / SPI SDO |
| 핀 15 | RC6/TX/CK — Digital I/O / USART TX / clock |
| 핀 16 | RC7/RX/DT — Digital I/O / USART RX / data |
| 핀 17 | RD0/PSP0 — Digital I/O / Parallel Slave Port bit 0 |
| 핀 18 | RD1/PSP1 — Digital I/O / Parallel Slave Port bit 1 |
| 핀 19 | RD2/PSP2 — Digital I/O / Parallel Slave Port bit 2 |
| 핀 20 | RD3/PSP3 — Digital I/O / Parallel Slave Port bit 3 |
| 핀 21 | RD4/PSP4 — Digital I/O / Parallel Slave Port bit 4 |
| 핀 22 | RD5/PSP5 — Digital I/O / Parallel Slave Port bit 5 |
| 핀 23 | RD6/PSP6 — Digital I/O / Parallel Slave Port bit 6 |
| 핀 24 | RD7/PSP7 — Digital I/O / Parallel Slave Port bit 7 |
| 핀 25 | VSS — Ground |
| 핀 26 | VDD — Positive supply voltage |
| 핀 27 | RB0/INT — Digital I/O / External interrupt |
| 핀 28 | RB1 — Digital I/O |
| 핀 29 | RB2 — Digital I/O |
| 핀 30 | RB3/PGM — Digital I/O / Low-voltage ICSP programming |
| 핀 31 | RB4 — Digital I/O |
| 핀 32 | RB5 — Digital I/O |
| 핀 33 | RB6/PGC — Digital I/O / ICSP clock |
| 핀 34 | RB7/PGD — Digital I/O / ICSP data |
| 핀 35 | RE0/RD/AN5 — Digital I/O / Parallel Slave Port read / AN5 |
| 핀 36 | RE1/WR/AN6 — Digital I/O / Parallel Slave Port write / AN6 |
| 핀 37 | RE2/CS/AN7 — Digital I/O / Parallel Slave Port CS / AN7 |
| 핀 38 | VDD — Positive supply voltage |
| 핀 39 | VSS — Ground |
| 핀 40 | NC — Not connected (no internal bond on 44-QFN) |
| 핀 41 | NC — Not connected |
| 핀 42 | NC — Not connected |
| 핀 43 | NC — Not connected |
| 핀 44 | EP — Exposed thermal pad - tie to VSS |
일반적인 애플리케이션
PIC16LF77T-I/ML 적합 용도: 6 애플리케이션s: Industrial Control Panels, Battery-Powered Sensor Hubs, Automotive Body Electronics, Appliance Control Boards, Embedded Instrumentation, Home Automation Gateways.
Industrial Control Panels
The PIC16LF77T-I/ML fits industrial control panels because its 14 KB flash accommodates mid-complexity ladder-logic-to-C translation, 368 bytes of RAM handles real-time I/O scheduling, and 33 I/O pins drive keys, LEDs, relays, and segment displays. Operating from 2.0 V to 5.5 V, it interfaces directly with 24 V-sensed digital inputs through optocouplers and 5 V rail. The 44-QFN package reduces PCB area versus QFP equivalents, enabling compact panel-mount designs with an industrial -40C to +85C rating for factory floor deployment.
추천
Battery-Powered Sensor Hubs
The PIC16LF77T-I/ML suits battery-powered sensor hubs because it operates from 2.0 V - directly compatible with single Li-ion (3.0-4.2 V) or 2x AA cells. Its 8-channel 10-bit ADC reads thermistors, photocells, and gas sensors; 256 bytes EEPROM stores calibration constants; USART transmits readings over UART or LIN-bus at low duty cycle. Sleep current in the low-microamp range (per PIC16F7X datasheet) plus 20 MHz burst throughput for periodic wake-and-transmit cycles extends battery life in wireless sensor nodes.
추천
Automotive Body Electronics
The PIC16LF77T-I/ML is used in non-safety automotive body modules such as mirror controllers, seat-position memories, and lighting drivers, where its LIN-capable USART interfaces with the vehicle body bus. The 44-QFN exposed pad dissipates heat from continuous LED-driver or motor-driver MOSFET switching. Operating range of -40C to +85C handles under-hood and cabin environments. For AEC-Q100 automotive-qualified variants within the same family, designers should select the PIC16F77-I/L automotive-grade version instead of the LF industrial.
추천
Appliance Control Boards
The PIC16LF77T-I/ML serves washing machines, dishwashers, refrigerators, and microwave ovens where 14 KB flash stores user-interface state machines, 33 I/O drives triac-controlled loads and keypads, and the 10-bit ADC reads motor current and temperature sensors. Wide VDD range (2.0 V to 5.5 V) supports both 3.3 V logic-level HMI displays and 5 V driver stages from a common supply rail. The QFN-44 package simplifies conformal-coated PCB layouts in humid environments.
추천
Embedded Instrumentation
The PIC16LF77T-I/ML powers bench-top and portable instruments like multimeters, signal calibrators, and data-loggers. Its 14 KB flash fits USB-CDC stacks or SCPI command parsers, 368 bytes RAM buffers measurement frames, and 10-bit ADC provides 8-channel scanning for multi-sensor acquisition. The 44-QFN package fits handheld enclosures, and -40C to +85C industrial range tolerates lab and field conditions. USART/MSSP peripherals connect to displays, Bluetooth modules, or EEPROM datalogging storage.
추천
Home Automation Gateways
The PIC16LF77T-I/ML acts as a low-cost sub-MCU in home automation gateways, offloading simple I/O and sensor tasks from a Linux host processor. Its MSSP SPI/I2C masters communicate with sensors, the USART bridges to RS-485 or LIN, and 33 I/O drive indicator LEDs and local keypads. Wide VDD range accepts PoE-derived or battery-backed rails. The exposed-pad QFN-44 allows continuous 20 MHz operation at +85C without thermal throttling in plastic junction boxes.
추천
추천 제품 요약
엔지니어링 참조 데이터: PIC16LF77T-I/ML — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | PIC16LF777T-I/ML | PIC16LF77-I/L | PIC16LF77T-I/L | PIC16LF777-I/ML | PIC16LF767-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin QFN (ML) with EP | 44-pin QFN (ML) with EP - same | 44-pin PLCC (L) - differs mechanically | 44-pin PLCC (L) - differs mechanically | 44-pin QFN (ML) with EP - same | 44-pin QFN (ML) with EP - same |
| Program Memory (Flash) | 14 KB | 14 KB | 14 KB | 14 KB | 14 KB | 14 KB |
| Data RAM | 368 bytes | 368 bytes | 368 bytes | 368 bytes | 368 bytes | 368 bytes |
| Maximum Clock | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| I/O Pins | 33 | 33 | 33 | 33 | 33 | 33 |
| CCP Modules | 2 | 2 | 2 | 2 | 2 | 1 (fewer PWM channels) |
| LIN USART Support | Yes | Yes (enhanced) | Yes | Yes | Yes (enhanced) | No |
| 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 |
주요 차별점
- Low-voltage 2.0 V operation for battery-powered designs (vs PIC16F877A)
- 44-pin QFN (ML) with exposed thermal pad (vs PIC16F877A in 44-PLCC)
- On-chip 256-byte EEPROM for data storage (vs External EEPROM solution)
- Enhanced LIN-capable USART for automotive body bus (vs PIC16LF767)
설계 노트
Place a 100 nF decoupling capacitor within 5 mm of every VDD pin and a bulk 10 uF tantalum or ceramic at the board supply entry. The 44-QFN exposes two VDD pins (26 and 38); both must be decoupled. Per the PIC16F7X datasheet, VDD rise time during power-on must be monotonic for proper BOR (brown-out reset) operation; add a small RC delay if the supply ramps too slowly.
The 44-QFN exposed pad must be soldered to a PCB thermal land that is thermally tied to the inner ground plane with multiple thermal vias. Estimated: at 20 MHz, VDD=5 V, and typical I/O toggling, current consumption is approximately 10-15 mA (50-75 mW). The exposed pad drops theta_JA to roughly 30 C/W, so junction rise is about 2.2 C above ambient - adequate for industrial -40C to +85C operation without derating.
Route the MCLR reset line away from switching nodes and high-current traces to prevent inadvertent resets from capacitive coupling. The ICSP pins (RB6/PGC, RB7/PGD) should each have a series resistor of 4.7 kohm in production circuits to allow in-circuit programming while preventing firmware from accidentally driving the programmer. Keep the OSC1/OSC2 traces short and surround them with a ground guard ring for noise immunity.
Do not leave the MCLR pin floating; tie it to VDD through a 10 kohm pull-up to allow normal operation, or to a supervisor circuit for production designs. Configure unused I/O as outputs driven low to minimize current consumption. The ADC requires the acquisition time to be programmed correctly based on source impedance; for 10 kohm sources or higher, use a longer Tacq or buffer with an op-amp.
규정 준수 정보
RoHS compliant per Microchip product page. Not AEC-Q100 qualified; for automotive applications choose AEC-Q100-graded PIC16F77-I/L variants. Lead-free reflow compatible (JEDEC J-STD-020).
