PIC16F73-E/SP - 8-Bit 20MHz 7KB FLASH MCU, 28-SPDIP | Microchip
Артикул: PIC16F73-E/SP ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $8.5 | $8,50 |
| 10 | $7.65 | $76,50 |
| 100 | $6.42 | $642,00 |
| 500 | $5.5 | $2.750,00 |
| 1.000 | $4.85 | $4.850,00 |
PIC16F73-E/SP Обзор
An 8-bit microcontroller (MCU) is a single-chip computer that processes data 8 bits at a time, combining a CPU, non-volatile program memory (FLASH or ROM), volatile data memory (RAM), and configurable peripherals. The PIC16F73 belongs to the broader mid-range PIC16 family (PIC16 -> 8-bit MCU -> microcontroller -> embedded IC -> semiconductor), designed for cost-sensitive embedded control with the industry-standard PIC instruction set (35 single-word instructions).
Key features include 5 channels of 8-bit ADC with 10 ms conversion time, dual Capture/Compare/PWM (CCP) modules for motor and lighting control, a synchronous serial port (SSP) configurable as 3-wire SPI or 2-wire I2C, plus an enhanced USART/SCI for asynchronous and synchronous serial communications. The device operates across an industrial temperature range of -40C to +125C, supports in-circuit serial programming (ICSP) via two pins, and is supported by Microchip's MPLAB X IDE and XC8 compiler toolchain.
The PIC16F73 uses a Harvard RISC architecture with separate program and data buses. Its FLASH program memory is erasable and reprogrammable in-circuit, allowing field firmware updates and iterative development. The 192-byte RAM supports single-cycle access at 20 MHz, and the 22 I/O pins can source/sink up to 25 mA for direct LED drive without external transistors.
Typical applications include industrial motor control (BLDC, stepper, fan drives), consumer appliance control (washing machines, microwaves, HVAC), uninterruptible power supply (UPS) battery monitoring, automotive body and accessory modules, security and fire-alarm sensor nodes, and general-purpose embedded control in cost-sensitive products. The PIC16F73's low component count and proven toolchain make it a strong fit for high-volume production designs.
When designing with this MCU, ensure adequate decoupling (100 nF ceramic plus 10 uF bulk within 25 mm of VDD) and reserve the MCLR pin for an in-circuit serial programming (ICSP) header if field firmware updates are anticipated. The 28-SPDIP through-hole package is preferred for hand-prototyping and high-voltage isolation in industrial designs, but the same die is offered in surface-mount variants (SOIC, SSOP) for volume manufacturing.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, with all data verified against Microchip's official PIC16F73 datasheet.
Аналоги без доработки для PIC16F73-E/SP — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с PIC16F73-E/SP (тот же форм-фактор и посадочное место) — отличается по Package, Timers, ADC, Core Architecture, Operating Temperature.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
PIC16F73-I/SP
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
PIC16F876A-I/SP
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
PIC16F737-I/SP
✅ Прямая замена✓ В наличии
$3.34 / шт.
Открыть даташит →PIC16F73-E/SP Максимальные параметры и электрические характеристики
| Core Architecture | PIC16, 8-bit RISC, Harvard |
| Instruction Set | 35 single-word instructions |
| Program Memory (FLASH) | 7 KB (4K x 14 words) |
| RAM | 192 bytes |
| Maximum CPU Frequency | 20 MHz |
| Instruction Cycle Time | 200 ns |
| I/O Pins | 22 |
| ADC | 5 channels, 8-bit |
| Timers | 2 (Timer0, Timer1) |
| Capture/Compare/PWM (CCP) | 2 modules |
| Serial Interfaces | 1x SSP (SPI/I2C), 1x USART/SCI |
| Диапазон рабочих температур | -40C to +125C (industrial, -E suffix) |
| Корпус | 28-pin SPDIP (0.300 inch, 7.62 mm row spacing) |
| Тип монтажа | Through-Hole |
| In-Circuit Programming | ICSP via 2-wire interface |
| Статус RoHS | Compliant |
| Уровень MSL | 1 (not moisture-sensitive for through-hole) |
Конфигурация выводов PIC16F73-E/SP
| Контакт 1 | MCLR/VPP — Master Clear (reset, active low) / ICSP programming voltage input |
| Контакт 2 | RA0/AN0 — PORTA bit 0 / analog input channel 0 |
| Контакт 3 | RA1/AN1 — PORTA bit 1 / analog input channel 1 |
| Контакт 4 | RA2/AN2 — PORTA bit 2 / analog input channel 2 |
| Контакт 5 | RA3/AN3/VREF — PORTA bit 3 / analog input channel 3 / voltage reference |
| Контакт 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Контакт 7 | RA5/AN4/SS — PORTA bit 5 / analog input channel 4 / SPI slave select |
| Контакт 8 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| Контакт 9 | OSC2/CLKOUT — Oscillator crystal output / clock output (Fosc/4) |
| Контакт 10 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| Контакт 11 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 output |
| Контакт 12 | RC2/CCP1 — PORTC bit 2 / CCP1 output (PWM) |
| Контакт 13 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Контакт 14 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Контакт 15 | RC5/SDO — PORTC bit 5 / SPI data out |
| Контакт 16 | RC6/TX/CK — PORTC bit 6 / USART transmit / USART clock |
| Контакт 17 | RC7/RX/DT — PORTC bit 7 / USART receive / USART data |
| Контакт 18 | VSS — Ground reference |
| Контакт 19 | VDD — Positive supply voltage |
| Контакт 20 | RB0/INT — PORTB bit 0 / external interrupt input |
| Контакт 21 | RB1 — PORTB bit 1 |
| Контакт 22 | RB2 — PORTB bit 2 |
| Контакт 23 | RB3/PGM — PORTB bit 3 / low-voltage ICSP programming |
| Контакт 24 | RB4 — PORTB bit 4 (interrupt-on-change) |
| Контакт 25 | RB5 — PORTB bit 5 (interrupt-on-change) |
| Контакт 26 | RB6/PGC — PORTB bit 6 / ICSP clock (programming/debug) |
| Контакт 27 | RB7/PGD — PORTB bit 7 / ICSP data (programming/debug) |
| Контакт 28 | VSS — Ground reference |
Типичное применение
PIC16F73-E/SP подходит для 6 применениеs: Industrial Motor Control (BLDC / Stepper / Fan), Consumer Appliance Control (Washing / Microwave / HVAC), UPS Battery Monitoring & Charger Control, Automotive Body & Accessory Modules, Security & Fire-Alarm Sensor Nodes, General-Purpose Embedded Control & Hobbyist Development.
Industrial Motor Control (BLDC / Stepper / Fan)
The PIC16F73-E/SP is well suited for industrial motor control where its 20 MHz / 5 MIPS throughput and dual Capture/Compare/PWM (CCP) modules directly drive MOSFET bridges for BLDC, stepper, and single-phase fan motors. Its 5-channel 8-bit ADC reads back EMF, current, and temperature for closed-loop torque control at refresh rates up to 50 kHz, while the USART serves as the Modbus RTU interface for SCADA integration. The 22 I/O pins source/sink up to 25 mA for direct opto-isolator drive to the gate-driver stage, and the -40C to +125C extended industrial grade survives under-hood and factory-floor environments where 85C-only parts derate prematurely.
Рекомендуется
Consumer Appliance Control (Washing / Microwave / HVAC)
The PIC16F73-E/SP is widely used in consumer white-goods appliances where cost-sensitive MCU selection is critical. Its 7 KB FLASH holds full state machines for wash-cycle, defrost, or thermostat control, and the 192-byte RAM is sufficient for sensor debounce, encoder tracking, and runtime counters. The 22 I/O pins interface directly to seven-segment displays, keypads, buzzer drivers, and triac optocouplers without external logic. In microwave ovens the 5-channel 8-bit ADC reads humidity and weight sensors, while the SSP in I2C mode talks to an EEPROM for user-preset storage. The 5V single-supply operation matches legacy appliance power rails without additional LDO cost.
Рекомендуется
UPS Battery Monitoring & Charger Control
Line-interactive and online UPS systems use the PIC16F73-E/SP as the battery monitor and charger controller, taking advantage of its 5-channel 8-bit ADC to sense per-cell voltage, pack current, and temperature across the battery string. At 20 MHz / 5 MIPS the MCU runs the Coulomb-counting algorithm for state-of-charge estimation and the CC/CV charging state machine in real time without missing interrupt deadlines. The USART streams battery telemetry to the main inverter MCU, while the SSP in SPI mode drives a 4-digit LED or LCD for local SOC display. The extended -40C to +125C temperature grade handles the enclosed battery-cabinet thermal envelope.
Рекомендуется
Automotive Body & Accessory Modules
Body controllers (door modules, seat controllers, mirror adjusters, HVAC blower controls) and aftermarket accessory ECUs commonly use the PIC16F73-E/SP because its -40C to +125C extended industrial range survives under-dash and door-cavity thermal stress. The 22 I/O pins drive H-bridge relays, stepper motors for headlamp leveling, and LIN/analog climate sensors via the 5-channel 8-bit ADC. The CCP modules generate PWM for variable-blower speed control, while the USART serves as a K-Line or LIN-bus slave interface for diagnostic communication. ICSP allows dealership firmware flashes for bug fixes and feature unlocks over the service connector.
Рекомендуется
Security & Fire-Alarm Sensor Nodes
Wired PIR motion sensors, smoke/heat detectors, and glass-break sensors use the PIC16F73-E/SP as the local decision-making MCU, reading the analog front-end through its 5-channel 8-bit ADC and driving the alarm loop or RF transmitter through its GPIO. The low power consumption of the PIC16 architecture extends battery life in wireless sensor nodes, and the SSP in SPI mode drives RF transceivers like the CC1101 for sub-GHz alarm reporting. The extended temperature range and robust FLASH (1,000+ erase cycles for field-recalibration) make it ideal for long-life safety-critical installations where field service is expensive.
Рекомендуется
General-Purpose Embedded Control & Hobbyist Development
The PIC16F73-E/SP remains a workhorse in university curricula, hobbyist projects, and small-batch embedded products thanks to its mature toolchain support (MPLAB X IDE, XC8 compiler, PICKit programmer) and the low-cost ICSP programming via two pins. The 28-SPDIP through-hole package is breadboard-friendly for hand-prototyping, and the 7 KB FLASH / 192-byte RAM is more than sufficient for sensor-fusion demos, robotic controllers, and custom keypad scanners. The dual CCP modules provide hobbyist PWM needs for servo drive, while the USART is used for Bluetooth or Wi-Fi module bridging via HC-05 or ESP-01 add-ons.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для PIC16F73-E/SP — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | PIC16F73-I/SP | PIC16F876A-I/SP | PIC16F737-I/SP |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SPDIP | 28-SPDIP (same) | 28-SPDIP (same) | 28-SPDIP (same) |
| Core | 8-bit PIC16 | 8-bit PIC16 | 8-bit PIC16 | 8-bit PIC16 |
| FLASH Program Memory | 7 KB | 7 KB | 14 KB | 7 KB |
| RAM | 192 bytes | 192 bytes | 368 bytes | 368 bytes |
| Max Clock Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| ADC Resolution | 8-bit, 5 ch | 8-bit, 5 ch | 10-bit, 5 ch | 10-bit, 5 ch |
| Operating Temperature | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +85C |
| CCP Modules | 2 | 2 | 2 | 2 |
| Approx. Unit Price (qty 100) | $6.42 | $5.80 | $7.20 | $6.95 |
Ключевые отличия
- Extended industrial temperature range (-40C to +125C) in the same 28-SPDIP package as the -I grade (против PIC16F73-I/SP)
- Industry-standard 28-SPDIP footprint for breadboard-friendly through-hole prototyping (против PIC16F73T-I/SO (28-SOIC))
- Mature, well-documented PIC16 architecture with 35-instruction RISC core (против Cross-brand ATmega8-16PU (Atmel))
Заметки по проектированию
Place a 100 nF ceramic decoupling capacitor within 5 mm of the VDD pin (pin 19) and a 10 uF bulk tantalum or aluminum electrolytic within 25 mm. For battery-powered designs, the PIC16F73 supports the 'sleep' mode where the CPU halts and current drops to microampere range while preserving RAM. The MCLR/VPP pin (pin 1) requires a 10 kohm pull-up to VDD for normal operation; do not leave it floating. Add a 100 nF between MCLR and VDD if the pin is exposed to ESD-sensitive environments to prevent spurious resets.
Configuration fuses must be set before the MCU can execute user code. Common pitfalls include failing to disable the Watchdog Timer in development (causing surprise resets every ~18 ms), selecting the wrong oscillator mode (HS vs XT vs LP affects capacitance requirements and EMI), and leaving the LVP (low-voltage programming) fuse enabled, which makes the RB4 pin unusable as GPIO. Always verify oscillator startup with an oscilloscope on the OSC2 pin before debugging firmware issues — a missing crystal or wrong fuse is the #1 cause of 'dead' PIC boards. Also note that the analog inputs (AN0-AN4) must be configured as digital inputs via ADCON1/PCFG bits to be used as GPIO.
Keep the 20 MHz crystal (or resonator) within 5 mm of the OSC1/OSC2 pins, with short traces to minimize stray capacitance. Route analog signals (PORTA pins) away from digital switching lines (PORTB/RC oscillator pins) to avoid ADC noise coupling — place a ground guard ring around the analog traces if PCB space allows. The 28-SPDIP through-hole footprint is forgiving for hand-wired prototypes but requires plated through-holes for production; allocate at least 2.5 mm clearance around the part for cut-and-jumper rework.
Информация о соответствии
RoHS and REACH compliant per Microchip product page; lead-free and halogen-free finishes. Not AEC-Q100 qualified — for automotive safety-critical applications, choose a PIC16Fxxx automotive-grade variant marked with the -VAO suffix or contact Microchip factory for AEC-Q100 screening.
