PIC16F73-E/ML - 20MHz 8-Bit Flash MCU | Microchip
MPN： PIC16F73-E/ML ✓ 啟用中PIC16F73-E/ML 概覽
A microcontroller is a programmable semiconductor that combines a CPU, nonvolatile memory, digital I/O, timers, and peripherals on one integrated circuit. The PIC16F73 belongs to the PIC16F family of 8-bit embedded controllers, a type of embedded controller used to monitor sensors and control actuators. Its integrated peripherals reduce the need for external interface components while allowing compact designs for industrial control, instrumentation, communications, and consumer equipment.
Five 8-bit A/D channels provide direct conversion of analog sensor signals, while the timer, capture, compare, and PWM resources support periodic timing, input capture, event measurement, and proportional output generation. The synchronous serial port can operate as three-wire SPI or two-wire I²C, and the USART supports asynchronous serial communication. These interfaces make the device suitable for boards that must connect sensors, displays, memories, or other embedded controllers.
The 20 MHz operating speed provides processing headroom for interrupt-driven control and communication tasks. Its 7 KB Flash capacity corresponds to 4K x 14 words, allowing firmware, configuration data, and application logic to remain resident without an external program-memory device. The 28-QFN exposed-pad construction also supports improved heat transfer compared with a leaded package when the PCB provides suitable copper area.
Typical uses include industrial sensor nodes, digital instruments, motor or actuator controllers, serial-interface equipment, and compact embedded control modules. SPI is useful for higher-speed peripherals, I²C suits low-pin-count sensor buses, and the USART is appropriate for RS-232-style point-to-point links or UART-based equipment. The five A/D channels are especially useful when monitoring temperature, position, pressure, or other continuously varying analog conditions.
Designers should use the exposed pad as a thermal and electrical ground path, follow the manufacturer's recommended decoupling and layout guidance, and verify signal levels against the 2.5 V to 5.5 V operating range. Firmware migration or replacement must also confirm peripheral assignments, interrupt behavior, configuration settings, and package pin mapping rather than relying only on the device family name.
This page combines the verified manufacturer product data, distributor availability and pricing, documented interface capabilities, and engineering-focused selection guidance. It also identifies the limited availability of verified same-footprint alternatives, avoiding unsupported substitutions that could require board changes or firmware changes.
直接替換替代品，適用於 PIC16F73-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： PIC16F73-E/ML （相同外形與佔位） — 差異在於 Package, Program Memory, Synchronous Serial Interface.
PIC16F73-I/ML
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC16F73-E/ML 最大額定值與電氣特性
| Product Type | 8-bit CMOS flash microcontroller |
| Maximum Clock Speed | 20 MHz |
| Program Memory | 7 KB flash (4096 words x 14 bits) |
| Program Memory Type | Flash |
| Supply Voltage Range | 2.5 V to 5.5 V |
| Analog-to-Digital Converter | 5 channels, 8-bit resolution |
| Additional Timers | 2 timers |
| Capture/Compare/PWM Functions | 2 functions |
| Synchronous Serial Interface | 3-wire SPI or 2-wire I²C |
| Asynchronous Serial Interface | USART |
| 封裝 | 28-QFN exposed pad, 6 x 6 mm |
| 安裝類型 | Surface mount |
| Lifecycle Stage | Active |
| Lead-Free Package | Yes |
PIC16F73-E/ML yes 腳位配置指南
PIC16F73-E/ML（yes 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： PIC16F73-E/ML.
請參閱 資料表 以查看完整腳位配置。
典型應用
PIC16F73-E/ML 適用於 6 應用s: Industrial Sensor Acquisition, Digital Measurement Instrument, Motor and Actuator Control, Serial Interface Equipment, LED Lighting and Display Control, Consumer Appliance Control.
Industrial Sensor Acquisition
The PIC16F73-E/ML fits industrial sensor-acquisition nodes because its five 8-bit ADC channels can monitor several analog inputs without requiring a separate converter. The 20 MHz CPU provides timing margin for filtering, scaling, diagnostics, and digital filtering, while the 2.5 V to 5.5 V operating range supports common control rails. A practical design would connect the sensors through appropriate conditioning networks, configure the ADC through the PIC16F73 peripheral architecture, and use SPI or I²C to report measurements to a higher-level controller. The 28-QFN exposed pad can improve heat transfer when the PCB provides adequate copper, but industrial qualification should separately verify temperature limits, noise immunity, and long-term availability.
推薦
Digital Measurement Instrument
The PIC16F73-E/ML is appropriate for a digital measurement instrument that must acquire analog readings, drive a display, and communicate with external equipment. Its five 8-bit ADC channels support several sensed quantities, while the two additional timers and two capture/compare/PWM functions can handle measurement timing, trigger capture, or warning indicators. The 7 KB Flash provides 4096 14-bit instruction words for firmware, calibration constants, and menu logic. SPI can serve faster local peripherals, I²C can connect low-speed sensors, and the USART provides a straightforward path to a host computer. Designers should budget the 20 MHz processing rate for display updates and filtering without assuming the ADC's 8-bit resolution is sufficient for precision metrology.
推薦
Motor and Actuator Control
The PIC16F73-E/ML can serve as the controller in a compact actuator or motor-control subsystem because it combines timers, two capture/compare/PWM functions, and multiple digital I/O resources. PWM outputs can command power stages, capture inputs can measure feedback edges, and the 20 MHz CPU can execute position or speed-control logic. The USART or synchronous serial interface can receive commands from a system controller. Because the MCU operates from 2.5 V to 5.5 V, it can be placed near a 3.3 V or 5 V logic domain, while motor power remains separate. The design must include driver transistors, flyback protection, fault handling, and appropriate current limiting rather than driving loads directly from the microcontroller.
推薦
Serial Interface Equipment
The PIC16F73-E/ML is useful in serial-interface equipment because its synchronous serial port can be configured for either three-wire SPI or two-wire I²C, and it also includes a USART. This allows one microcontroller to connect a sensor, memory, display, or transceiver while another UART remains available for a host link. At a maximum clock speed of 20 MHz, it can service interrupt-driven protocols and moderate data-processing tasks. The chosen interface voltage and pull-up requirements must match the attached bus, and software should verify protocol timing against the device operating frequency. The 28-QFN exposed-pad package helps reduce board area in compact gateways, provided the exposed pad is routed according to the manufacturer layout guidance.
推薦
LED Lighting and Display Control
The PIC16F73-E/ML can control LED lighting, status indicators, or compact display systems using its timers and PWM resources. The two capture/compare/PWM functions support periodic generation and adjustable duty-cycle outputs, while the five ADC channels can monitor ambient light or a current-sense condition. The device can also use SPI or I²C to update an intelligent display or address external LED drivers. At up to 20 MHz, it has enough performance for sequencing, fading, fault monitoring, and communication tasks in a small controller. LED current must be limited by driver circuitry rather than microcontroller pins, and the designer should confirm switching levels, grounding, and exposed-pad thermal requirements in the final layout.
推薦
Consumer Appliance Control
The PIC16F73-E/ML can serve as the embedded controller in a compact consumer appliance that combines analog sensing, timing, and serial communication. Its 7 KB Flash accommodates a practical application program, and the five ADC channels can read temperature, level, or switch feedback. The timer and PWM resources support motor, valve, or indicator timing, while I²C or SPI can connect sensors and display modules. The 2.5 V to 5.5 V range simplifies adaptation to common appliance logic rails. Because the exposed-pad package is optimized for compact boards, thermal management and copper placement are important even at modest clock speeds. Production use should verify the exact temperature grade, programming method, lifecycle availability, and any regional safety requirements.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16F73-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 | PIC16F73-I/ML |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Package | 28-QFN exposed pad, 6 x 6 mm | 28-QFN exposed pad, 6 x 6 mm |
| Product Type | 8-bit CMOS flash microcontroller | 8-bit CMOS flash microcontroller |
| Maximum Clock Speed | 20 MHz | 20 MHz |
| Program Memory | 7 KB Flash (4096 words x 14 bits) | 7 KB Flash (4096 words x 14 bits) |
| Supply Voltage Range | 2.5 V to 5.5 V | 2.5 V to 5.5 V |
| ADC Channels | 5 channels, 8-bit resolution | 5 channels, 8-bit resolution |
| Serial Interfaces | SPI, I²C, and USART | SPI, I²C, and USART |
| Temperature Ordering Grade | -E extended-temperature designation | -I industrial-temperature designation |
主要差異化特點
- Closest verified drop-in family option (對比PIC16F73-I/ML)
- Integrated analog and communication resources (對比PIC16F73-I/ML)
- Higher temperature ordering option (對比PIC16F73-I/ML)
設計說明
Use the manufacturer 28-QFN land pattern and connect the exposed pad to the specified ground reference with adequate copper area. Place required bypass capacitors close to their associated supply pins and provide a short, low-impedance return path. Because the package is only 6 x 6 mm, courtyard clearance, solder-mask design, thermal-via spacing, and assembly requirements should be reviewed before layout release.
Decouple the 2.5 V to 5.5 V supply locally and keep switching or high-current returns from the MCU's ground reference. Validate ripple and transient response under the highest expected switching activity, especially when SPI, I²C, or USART activity coincides with ADC sampling. The available verified data confirms the voltage range but does not provide recommended capacitor values, so those values must be taken from the official datasheet rather than estimated.
Keep clock, programming, serial, and sensitive analog traces short, and route the synchronous serial interfaces away from noisy switching nodes. The exposed pad requires careful via placement to avoid solder wicking during reflow while preserving thermal and electrical performance. Verify the final design against the Microchip PIC16F73 pin-pack compatibility chart before manufacturing, because the supplied search results did not include a verified complete pin table.
Do not assume that a PIC16F73-family ordering code is automatically firmware-compatible or temperature-equivalent. Configuration bits, oscillator settings, brownout behavior, peripheral mappings, and the application temperature requirement can vary by grade. For a replacement, compare the exact suffix, confirm the same 28-QFN footprint, review every pin, and perform prototype testing including startup, brownout behavior, ADC accuracy, communications, and exposed-pad temperature rise.
合規資訊
The verified distributor package description identifies a lead-free plastic package. RoHS, REACH, halogen-free, AEC-Q100, and conflict-minerals statements were not included in the supplied verified data and are therefore recorded as unknown.
