PIC16F777-E/ML - 14KB Flash, 8-bit MCU, 44-VQFN | Microchip
料号： PIC16F777-E/ML ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $8.13 | $8.13 |
| 10 | $7.42 | $74.20 |
| 100 | $6.51 | $651.00 |
| 500 | $5.84 | $2,920.00 |
| 1,000 | $5.21 | $5,210.00 |
PIC16F777-E/ML 概述
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and programmable I/O peripherals. Within that hierarchy, the PIC16F777 belongs to the 8-bit PIC mid-range family, which sits between Microchip's baseline (PIC10/12/14) and enhanced mid-range (PIC18F) families. The PIC16F family is positioned for cost-sensitive embedded designs requiring moderate computational throughput, low power consumption (nanoWatt technology), and a rich analog/digital peripheral set.
The PIC16F777 features 14 channels of 10-bit Analog-to-Digital conversion, three 8/16-bit timers, three Capture/Compare/PWM modules, an MSSP configurable as SPI or I2C, an Enhanced USART with auto-baud detection, a parallel slave port, and nanoWatt power management. The on-chip 10-bit ADC with up to 14 input channels enables direct sensor interfacing without external ADCs, while the dual-oscillator nanoWatt technology supports primary, secondary, and internal oscillator modes for ultra-low-power operation.
Architecturally, the device uses a Harvard bus architecture with separate program and data paths, a 14-bit-wide instruction word, and a 14-level deep hardware stack. The integrated Brown-out Reset (BOR), Power-on Reset (POR), and Watchdog Timer with its own on-chip RC oscillator provide five operating modes that together make the PIC16F777 tolerant of noisy industrial power rails. Industrial-grade operating voltage range is 2.0V to 5.5V.
Typical applications include industrial control and sensor nodes, HVAC and building automation, motor control (BLDC, stepper), automotive body electronics, consumer appliance interfaces, instrumentation data logging, and USB-to-UART bridges when paired with an external FTDI or MCP2200 bridge IC. The wide peripheral integration reduces BOM cost for these designs.
When designing with the PIC16F777, plan for ICSP programming via PGC/PGD pins shared with RB6/RB7, verify the exposed pad is soldered to the ground plane for thermal dissipation, and use Microchip's MPLAB X IDE with the XC8 compiler for development. This page synthesizes drop-in alternatives, pricing tiers, and design notes that are not collected in the manufacturer datasheet.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing a 360-degree reference for sourcing and engineering decisions.
直接替换替代料： PIC16F777-E/ML ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC16F777-E/ML （相同外形与封装尺寸） ——差异在于 Package, ADC, Timers, I/O Pins, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
PIC16F777-I/ML
✅ 直接替换✓ 有现货
$5.48 / 个
查看数据手册 →PIC16F747-E/ML
✅ 直接替换✓ 有现货
$2.85 / 个
查看数据手册 →PIC16F767-I/ML
✅ 直接替换✓ 有现货
$2.85 / 个
查看数据手册 →PIC16F727-E/ML
✅ 直接替换✓ 有现货
$1.62 / 个
查看数据手册 →PIC16F777-E/ML 最大额定值与电气特性
| Product Type | 8-bit Microcontroller (MCU) |
| Core Architecture | PIC16 (RISC, Harvard bus) |
| Program Memory (Flash) | 14 KB |
| Data Memory (SRAM) | 368 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 20 MHz (200 ns instruction cycle) |
| Operating Voltage | 2.0 V to 5.5 V |
| 工作温度范围 | -40 C to +125 C (Extended, -E suffix) |
| I/O Pins | 36 (on 44-pin package) |
| ADC | 10-bit, 14 channels |
| Timers | 3 (Timer0, Timer1, Timer2) |
| Capture/Compare/PWM | 3 ECCP modules |
| Communication | MSSP (SPI / I2C), Enhanced USART, Parallel Slave Port |
| 封装 | 44-pin QFN (8x8 mm) with exposed thermal pad (ML) |
| 安装类型 | Surface Mount |
| MSL 等级 | 3 (per JEDEC J-STD-020) |
| Power-Saving Modes | nanoWatt technology with multiple idle/sleep modes |
| RoHS 状态 | Compliant |
PIC16F777-E/ML 引脚配置
| 引脚 1 | RA0/AN0 — PORTA bit 0 / Analog input 0 |
| 引脚 2 | RA1/AN1 — PORTA bit 1 / Analog input 1 |
| 引脚 3 | RA2/AN2/CVREF — PORTA bit 2 / Analog input 2 / Comparator voltage reference |
| 引脚 4 | RA3/AN3/VREF+ — PORTA bit 3 / Analog input 3 / ADC positive reference |
| 引脚 5 | RA4/AN4/T0CKI — PORTA bit 4 / Analog input 4 / Timer0 clock input |
| 引脚 6 | RA5/AN5/SS — PORTA bit 5 / Analog input 5 / SPI slave select |
| 引脚 7 | RA6/OSC2 — PORTA bit 6 / Oscillator output |
| 引脚 8 | RA7/OSC1 — PORTA bit 7 / Oscillator input |
| 引脚 9 | RE0/RD/AN6 — PORTE bit 0 / Parallel slave port read / Analog input 6 |
| 引脚 10 | RE1/WR/AN7 — PORTE bit 1 / Parallel slave port write / Analog input 7 |
| 引脚 11 | RE2/CS/AN8 — PORTE bit 2 / Parallel slave port chip select / Analog input 8 |
| 引脚 12 | VDD — Positive power supply |
| 引脚 13 | VSS — Ground reference |
| 引脚 14 | OSC1/CLKI — External oscillator input / external clock input |
| 引脚 15 | OSC2/CLKO — External oscillator output / clock output |
| 引脚 16 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| 引脚 17 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 module |
| 引脚 18 | RC2/CCP1 — PORTC bit 2 / CCP1 module |
| 引脚 19 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| 引脚 20 | RD0/PSP0 — PORTD bit 0 / Parallel slave port data bit 0 |
| 引脚 21 | RD1/PSP1 — PORTD bit 1 / Parallel slave port data bit 1 |
| 引脚 22 | RD2/PSP2 — PORTD bit 2 / Parallel slave port data bit 2 |
| 引脚 23 | RD3/PSP3 — PORTD bit 3 / Parallel slave port data bit 3 |
| 引脚 24 | RD4/PSP4 — PORTD bit 4 / Parallel slave port data bit 4 |
| 引脚 25 | RD5/PSP5 — PORTD bit 5 / Parallel slave port data bit 5 |
| 引脚 26 | RD6/PSP6 — PORTD bit 6 / Parallel slave port data bit 6 |
| 引脚 27 | RD7/PSP7 — PORTD bit 7 / Parallel slave port data bit 7 |
| 引脚 28 | VSS — Ground reference |
| 引脚 29 | VDD — Positive power supply |
| 引脚 30 | RB0/INT0/AN12 — PORTB bit 0 / External interrupt 0 / Analog input 12 |
| 引脚 31 | RB1/INT1/AN10 — PORTB bit 1 / External interrupt 1 / Analog input 10 |
| 引脚 32 | RB2/INT2/AN8 — PORTB bit 2 / External interrupt 2 / Analog input 8 |
| 引脚 33 | RB3/CCP2/AN9 — PORTB bit 3 / CCP2 / Analog input 9 |
| 引脚 34 | RB4/AN11 — PORTB bit 4 / Analog input 11 |
| 引脚 35 | RB5/AN13 — PORTB bit 5 / Analog input 13 |
| 引脚 36 | RB6/PGC — PORTB bit 6 / In-Circuit Serial Programming clock |
| 引脚 37 | RB7/PGD — PORTB bit 7 / In-Circuit Serial Programming data |
| 引脚 38 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| 引脚 39 | RC5/SDO — PORTC bit 5 / SPI data out |
| 引脚 40 | RC6/TX/CK — PORTC bit 6 / USART transmit / USART clock |
| 引脚 41 | RC7/RX/DT — PORTC bit 7 / USART receive / USART data |
| 引脚 42 | RC8/CCP3 — PORTC bit 8 / CCP3 module |
| 引脚 43 | RC9/CCP4 — PORTC bit 9 / CCP4 module |
| 引脚 44 | EP — Exposed thermal pad - connect to VSS for thermal dissipation |
典型应用
PIC16F777-E/ML 适用于 6 应用s: Industrial Sensor Interface Node, HVAC and Building Automation Controller, Small Motor Control (Brushed DC, Stepper), Automotive Body Electronics, Consumer Appliance Interface, Instrumentation Data Logger.
Industrial Sensor Interface Node
The PIC16F777-E/ML fits industrial sensor-interface nodes because it integrates 14 channels of 10-bit ADC alongside three Enhanced CCP PWM modules and dual I2C/SPI. This combination lets a single chip read multiple analog sensors (temperature, pressure, humidity) and drive PWM outputs for control loops, eliminating the need for an external ADC. The 44-pin QFN package exposes 36 GPIO - enough for digital inputs, status LEDs, and multiple communication buses concurrently. The 2.0V-5.5V VDD window tolerates industrial 24V-derived rails after regulation, and the -40 C to +125 C extended grade covers outdoor and factory-floor environments.
推荐
HVAC and Building Automation Controller
For HVAC and building automation the PIC16F777-E/ML provides enough Flash (14 KB) and peripheral integration (USART, MSSP, three PWM) to handle thermostat logic, damper/motor control, and serial communication with a central BMS over RS-485. The 14-channel ADC reads multiple temperature zones and pressure sensors concurrently. nanoWatt technology allows deep-sleep current below 1 uA when the system is idle, which is critical for battery-backed thermostats. The 44-QFN package is well suited to the slim, fanless form factor of wall-mounted controllers.
推荐
Small Motor Control (Brushed DC, Stepper)
The PIC16F777-E/ML is a practical fit for small brushed-DC and stepper motor control where the three Enhanced CCP modules can generate up to three PWM channels with complementary outputs and programmable dead-band. The 14-channel 10-bit ADC samples current-sense amplifiers for basic torque limiting or stall detection. The 20 MHz instruction rate supports 8 kHz PWM at 50 MHz-equivalent update rates. For high-RPM sensorless BLDC with FOC, upgrade to a dsPIC33; for low-cost brushed DC under 1 A, the PIC16F777 in 44-QFN is more than sufficient.
推荐
Automotive Body Electronics
Body-electronics modules such as seat controllers, mirror adjusters, and interior lighting benefit from the PIC16F777-E/ML's 14 KB Flash, three PWM channels, and the -40 C to +125 C extended temperature range. Combined with a LIN or CAN transceiver, the MCU serves as a low-cost body-domain slave. The 44-QFN package fits within tight PCB areas. Note that this part is not AEC-Q100 qualified; for AEC-Q100 body electronics choose PIC16F15344-I/ML or PIC16F18855-I/ML from the newer PIC16F1 enhanced family.
推荐
Consumer Appliance Interface
Consumer appliances (washing machines, dishwashers, microwave ovens, coffee machines) use the PIC16F777-E/ML for its integrated ADC, PWM, and serial ports that connect to user-interface keypads, LCDs, and triac-driven heaters or pumps. The PIC16F777's 256 bytes EEPROM stores user settings and cycle counts without battery backup. The Extended -40 C to +125 C grade handles the high-temperature environment inside appliance enclosures. The 44-QFN package's small footprint fits the dense control boards of modern white goods.
推荐
Instrumentation Data Logger
The PIC16F777-E/ML is an effective controller for portable instrumentation data loggers because of its 14-channel 10-bit ADC, 256-byte on-chip EEPROM for parameter storage, and dual serial ports (USART plus MSSP) for SD card or external sensor interfaces. The Extended temperature grade enables outdoor or industrial logging. nanoWatt sleep modes drop the average current to single-digit microamps for battery-powered deployments. The 368-byte RAM is the limiting factor - log a sample at a time and stream to SD rather than buffering large blocks.
推荐
推荐产品汇总
工程参考数据： PIC16F777-E/ML ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC16F777-I/ML | PIC16F747-E/ML | PIC16F767-I/ML | PIC16F727-E/ML |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin QFN (8x8 mm) | 44-pin QFN (8x8 mm) - same | 44-pin QFN (8x8 mm) - same | 28-pin QFN (6x6 mm) - different | 44-pin QFN (8x8 mm) - same |
| Flash Memory | 14 KB | 14 KB | 7 KB (-50%) | 14 KB | 14 KB |
| SRAM | 368 bytes | 368 bytes | 368 bytes | 368 bytes | 368 bytes |
| EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| Maximum CPU Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| ADC Channels | 14 (10-bit) | 14 (10-bit) | 14 (10-bit) | 11 (10-bit) - 21% fewer channels | 14 (10-bit) |
| I/O Pins | 36 | 36 | 36 | 25 (28-pin pkg) | 36 |
| Operating Temperature | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) |
关键差异点
- Highest ADC channel count in the PIC16F 28/40/44-pin family （对比 PIC16F767-I/ML)
- Doubled Flash memory vs lower-cost family variant （对比 PIC16F747-E/ML)
- Extended industrial temperature grade -40 C to +125 C （对比 PIC16F777-I/ML)
- Three Enhanced CCP/PWM modules versus two on baseline PIC16F （对比 PIC16F727-E/ML)
设计说明
The exposed thermal pad on the 44-pin QFN (ML) package must be soldered to a grounded copper pour of at least 0.5 square inches for mechanical reliability and thermal dissipation. Skipping the EP solder connection can cause intermittent failures during thermal cycling, because the package relies on the EP for stress relief. The EP must be electrically connected to VSS - never leave it floating.
Add a 0.1 uF ceramic decoupling capacitor as close as possible to the VDD pin (pin 12 or 29) and a bulk 10 uF tantalum or ceramic on the same rail. For analog-sensitive applications place a separate 10 uH ferrite bead between the digital and analog VDD rails, plus a 10 uF cap on AVdd. Brown-out Reset should be enabled in configuration bits to prevent code execution at unsafe VDD levels below 4.0 V (BOR @ 2.0-4.0 V threshold range).
ICSP programming pins RB6 (PGC) and RB7 (PGD) must be brought out to a 2x3 or 1x6 header for in-system firmware updates. Add ESD protection diodes or series resistors on RB6/RB7 if they are exposed to user-accessible connectors. Keep clock traces (OSC1/OSC2 or external crystal) short - less than 5 mm - and surround them with a ground guard ring to reduce radiated emissions and noise injection.
Estimated: at 20 MHz CPU clock and 5 V VDD with all peripherals active, the PIC16F777-E/ML draws approximately 10 mA, dissipating about 50 mW. The QFN package's theta_JA is approximately 30 C/W on a 4-layer JEDEC test board, giving a junction temperature rise of only 1.5 C above ambient. No heatsink is required, but verify on the actual PCB layout because thermal pad design and copper area dramatically change this value.
The Enhanced USART supports auto-baud detection but requires a calibration byte sequence at startup. Configure the EUSART with BRGH=1 for higher baud-rate accuracy at 20 MHz. For RS-485 networks add 120-ohm termination at both ends and a fail-safe bias resistor network. The MSSP in I2C mode requires 4.7 kohm pull-ups on SCL/SDA for 100 kHz standard mode and 3.3 kohm for 400 kHz fast mode.
合规信息
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - for AEC-Q100 automotive applications choose PIC16F18855-I/ML or PIC16F15344-I/ML from the enhanced PIC16F1 family. Lead-free (Pb-free) per JEDEC J-STD-020 MSL-3 rating.
