PIC16F77-E/ML - 8-Bit 20MHz MCU, 14KB Flash | Microchip
MPN： PIC16F77-E/ML ✓ 啟用中PIC16F77-E/ML 概覽
直接替換替代品，適用於 PIC16F77-E/ML — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC16F77-E/ML （相同外形與佔位） — 差異在於 Package, Program Memory Size, Serial Interfaces, Timers, RoHS Status.
PIC16F77T-I/ML
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16F77-I/ML
✅ 直接替換聯絡詢價
查看資料表 →PIC16F77T-E/ML
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC16F74-E/ML
✅ 直接替換聯絡詢價
查看資料表 →PIC16F777-I/ML
✅ 直接替換聯絡詢價
查看資料表 →PIC16F77-E/ML 最大額定值與電氣特性
| Controller Type | 8-bit microcontroller |
| Maximum CPU Frequency | 20 MHz |
| Program Memory | 14KB flash |
| Program Memory Organization | 8K x 14 words |
| RAM | 368 bytes |
| General-Purpose I/O | 33 lines |
| Analog-to-Digital Converter | 8-channel, 8-bit |
| Additional Timers | 2 timers |
| Capture/Compare/PWM Functions | 2 functions |
| Synchronous Serial Port | 3-wire SPI or 2-wire I²C |
| Asynchronous Serial Port | 1 USART |
| 封裝 | 44-pin VQFN with exposed pad |
| Temperature Grade | Extended temperature (-E) |
| Product Series | PIC 16F |
| Core Architecture | 8-bit PIC |
PIC16F77-E/ML 44-pin vqfn with exposed pad 腳位配置指南
PIC16F77-E/ML（44-pin vqfn with exposed pad 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： PIC16F77-E/ML.
請參閱 資料表 以查看完整腳位配置。
典型應用
PIC16F77-E/ML 適用於 6 應用s: Industrial Sensor Acquisition, Motor and PWM Control, Digital Instrumentation, Battery-Powered Embedded Control, Communications Controller, Programmable Control Module.
Industrial Sensor Acquisition
The PIC16F77-E/ML fits sensor-acquisition equipment that must measure several analog inputs while also performing real-time control. Its integrated 8-channel 8-bit ADC provides 10-bit-resolution-equivalent stated functionality as an 8-bit converter without requiring an external ADC, while 33 I/O lines leave capacity for digital sensors, status indicators, and actuators. At up to 20 MHz, the controller can service interrupts, average or filter readings, and update outputs without excessive idle time. The 44-VQFN exposed-pad package also helps transfer heat away from the controller in compact industrial electronics. Designers should follow the manufacturer’s grounding and decoupling guidance, especially when analog and digital signals share the PCB.
推薦
Motor and PWM Control
The PIC16F77-E/ML is appropriate for compact motor-control subsystems that need accurate timing, adjustable pulse-width outputs, and digital feedback. The manufacturer product page confirms two additional timers and two capture/compare/PWM functions, which provide dedicated resources for generating PWM waveforms and measuring input periods. A 20 MHz operating speed gives designers additional timing headroom for control updates and commutation logic, while 33 I/O lines support limit switches, Hall or encoder inputs, and gate-control outputs. The same MCU can also expose a service interface through SPI, I²C, or USART, reducing the need for separate protocol converters in industrial actuator modules.
推薦
Digital Instrumentation
The PIC16F77-E/ML can serve as the control and communications core of a compact digital instrument. Its 8-bit ADC supports front-panel or sensor measurements, while 14KB of flash provides space for calibration tables, menu logic, and communication routines. The integrated USART supports point-to-point console or instrument communication, and the synchronous serial port can operate in 3-wire SPI or 2-wire I²C mode when connecting to displays, memory, or sensors. With 33 I/O lines, the controller can manage keys, indicators, relays, and an external data-acquisition stage while maintaining a compact 44-VQFN footprint.
推薦
Battery-Powered Embedded Control
The PIC16F77-E/ML is suitable for embedded controllers where analog monitoring, timers, and multiple communication standards must coexist in a small board. Its 8-channel ADC permits sharing among temperature, battery, and position-related inputs, while the 20 MHz operating speed supports responsive foreground and interrupt-driven processing. The 44-VQFN exposed-pad package minimizes board area compared with many through-hole or larger-lead-count microcontroller packages. Because sleep-mode current, analog accuracy, and timer performance details are not present in the verified excerpts, a battery-focused design must consult the complete manufacturer datasheet before estimating standby life or conversion accuracy.
推薦
Communications Controller
The PIC16F77-E/ML can consolidate serial connectivity in industrial or embedded communication equipment. Its USART handles asynchronous links, while the synchronous serial port selects either 3-wire SPI or 2-wire I²C, allowing the same controller to communicate with local sensors, transceivers, memory, and service equipment. A 20 MHz maximum operating frequency supports protocol servicing and supervisory logic, and 33 I/O lines provide handshake, fault, and routing signals around the communications functions. The 14KB flash capacity accommodates protocol state machines and configuration, although developers should confirm protocol timing and RAM allocation against the manufacturer documentation.
推薦
Programmable Control Module
The PIC16F77-E/ML is a practical controller for compact programmable automation modules combining configurable inputs and outputs with serial management. Thirty-three I/O lines support digital commands, status reporting, and actuator outputs, while the ADC enables analog supervision of supply rails or external sensors. Its timers and PWM functions can drive indicators, valves, or small motors, and SPI or I²C provides expansion for higher-bandwidth or multi-device interfaces. The 44-VQFN exposed-pad package permits dense implementation, but thermal-pad soldering and creepage requirements must be addressed in the PCB footprint and assembly process.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16F77-E/ML — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC16F77T-I/ML | PIC16F77-I/ML | PIC16F77T-E/ML | PIC16F74-E/ML | PIC16F777-I/ML |
|---|---|---|---|---|---|---|
| Package | 44-VQFN Exposed Pad | 44-VQFN Exposed Pad | 44-VQFN Exposed Pad | 44-VQFN Exposed Pad | 44-VQFN Exposed Pad | 44-VQFN Exposed Pad |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Architecture | 8-bit PIC | 8-bit PIC | 8-bit PIC | 8-bit PIC | 8-bit PIC | 8-bit PIC |
主要差異化特點
- Same-device 44-VQFN migration options (對比PIC16F77T-I/ML)
- Integrated mixed-signal and communications resources (對比PIC16F74-E/ML)
- 20 MHz processing rate with 33 I/O lines (對比PIC16F777-I/ML)
- Compact 44-VQFN exposed-pad integration (對比PIC16F77-E/PT)
設計說明
The 44-VQFN exposed pad is part of the thermal and electrical design, not an optional feature. Follow the manufacturer land-pattern and exposed-pad connection instructions, provide adequate ground and copper beneath the device, and account for thermal coupling into the PCB. Because junction-to-ambient thermal resistance is not supplied in the verified excerpts, do not estimate production thermal margin without the datasheet and a realistic PCB model.
Place input and output bypass capacitors close to their associated power pins and route the exposed pad to the recommended ground or supply net. Keep sensitive analog inputs away from PWM edges, switching-node traces, and high-current return paths. The compact VQFN footprint requires careful thermal-via layout and assembly planning, while the 33 I/O lines should be assigned early so that debug programming and production test access remain available.
Do not treat every PIC16F-family part with a similar /ML suffix as an automatic drop-in replacement. Verify the complete 44-pin map, exposed-pad connection, ADC channels, timer resources, memory size, peripheral set, and configuration bits against the manufacturer datasheet. A missing or differently connected pin can affect firmware startup, programming, analog measurement, or motor-control timing even when the package dimensions appear identical.
Separate analog and digital return paths as far as practical, use a stable reference near the ADC circuitry, and avoid routing communication clocks parallel with high-energy switching traces. Although SPI and I²C are available on the device, their usable rate depends on the complete electrical timing data, which is not included in the verified excerpts. Confirm voltage levels, pull-up requirements, clock limits, and signal-integrity margins in the manufacturer documentation.
合規資訊
The supplied product-page and distributor excerpts do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. No compliance claim has been inferred.
