{"id":6543,"date":"2026-06-18T13:44:59","date_gmt":"2026-06-18T13:44:59","guid":{"rendered":"https:\/\/materialparts.com\/pic18f45k22-i-pt\/"},"modified":"2026-06-18T13:44:59","modified_gmt":"2026-06-18T13:44:59","slug":"pic18f45k22-i-pt","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/pic18f45k22-i-pt\/","title":{"rendered":"PIC18F45K22-I\/PT"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The PIC18F45K22-I\/PT from Microchip Technology is an 8-bit PIC18 microcontroller with 32KB Flash, 1536B SRAM, and 256B EEPROM. Running at up to 64MHz, it features a 12-bit ADC, multiple serial interfaces, and is packaged in a 44-pin TQFP with eXtreme Low Power (XLP) technology.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
\u6838\u5fc3<\/td>\nPIC18, 8-bit RISC<\/td>\n<\/tr>\n
Max Speed<\/td>\n64MHz (16 MIPS)<\/td>\n<\/tr>\n
Flash Memory<\/td>\n32KB<\/td>\n<\/tr>\n
SRAM<\/td>\n1536 bytes<\/td>\n<\/tr>\n
EEPROM<\/td>\n256 bytes<\/td>\n<\/tr>\n
ADC<\/td>\n12-bit, 28 channels<\/td>\n<\/tr>\n
\u4ea4\u6d41<\/td>\n2xEUSART, 2xSPI, 2xI2C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n44-TQFP (10x10mm)<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n1.8V to 5.5V<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40 to +85 C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • eXtreme Low Power (XLP) technology<\/li>\n
  • 12-bit ADC with computation module<\/li>\n
  • Dual EUSART with auto-baud detection<\/li>\n
  • Charge time measurement unit (CTMU)<\/li>\n
  • Dual I2C\/SPI interfaces<\/li>\n
  • Enhanced PWM with independent output control<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Battery-powered instrumentation<\/li>\n
    • Consumer electronics and appliances<\/li>\n
    • Motor control and power conversion<\/li>\n
    • Industrial sensor interfaces<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The PIC18F45K22-I\/PT from Microchip Technology is an 8-bit PIC18 microcontroller with 32KB Flash, 1536B SRAM, and 256B EEPROM. Running at up to 64MHz, it features a 12-bit ADC, multiple serial interfaces, and is packaged in a 44-pin TQFP with eXtreme Low Power (XLP) technology. Key Specifications Core PIC18, 8-bit RISC Max Speed 64MHz […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,25],"tags":[],"chip_brand":[134],"class_list":["post-6543","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-microcontrollers-mcu","chip_brand-microchip"],"acf":{"brief_explanation":"8-bit PIC18 MCU, 64MHz, 32KB Flash, 12-bit ADC, dual EUSART\/SPI\/I2C, 44-TQFP","date_code":"","package_case":"44-TQFP (10x10mm)","in_stock":10732,"datasheet":"https:\/\/ww1.microchip.com\/downloads\/en\/DeviceDoc\/41412F.pdf","price":"$2.50 @ 1ku","product_introduction":"The PIC18F45K22-I\/PT is a high-performance 8-bit PIC18 microcontroller with 32KB Flash, 1536B SRAM, and 256B EEPROM. Operating at up to 64MHz, it features a rich peripheral set including a 12-bit ADC with computation module, dual EUSART with auto-baud detection, dual MSSP (SPI\/I2C), and enhanced PWM with independent output control. The eXtreme Low Power (XLP) technology enables deep sleep currents as low as 20nA, making it ideal for battery-powered applications. The CTMU enables capacitive touch sensing without external components.","working_principle":"The PIC18F45K22 uses Microchips enhanced PIC18 core with a 16-bit instruction word and linear program memory addressing. The core supports hardware multiply and single-cycle instruction execution for most operations. The 12-bit ADC with computation module automates signal conditioning tasks such as filtering and threshold comparison. The dual MSSP modules support SPI and I2C master\/slave modes. The enhanced CCP\/PWM module provides flexible output control for motor driving and power conversion. The XLP technology uses multiple low-power modes to minimize power consumption while maintaining rapid wake-up times.","pin_description":"
      Pin Group<\/th>Count<\/th>Function<\/th><\/tr>
      I\/O<\/td>36<\/td>General-purpose digital I\/O<\/td><\/tr>
      Analog<\/td>28<\/td>12-bit ADC input channels<\/td><\/tr>
      EUSART<\/td>4<\/td>2xTX\/RX pairs<\/td><\/tr>
      MSSP<\/td>4<\/td>2xSPI\/I2C<\/td><\/tr>
      PWM<\/td>5+<\/td>Enhanced CCP\/PWM outputs<\/td><\/tr>
      Power<\/td>6+<\/td>VDD\/VSS supply pins<\/td><\/tr>
      Debug<\/td>2<\/td>ICSP (PGC\/PGD)<\/td><\/tr>
      Reset<\/td>1<\/td>MCLR (master clear)<\/td><\/tr><\/table>","application_scenarios":"
      • Battery-powered data loggers with XLP sleep modes and 12-bit ADC<\/li>
      • Capacitive touch user interfaces using CTMU without external sensors<\/li>
      • Motor control applications with enhanced PWM and ADC computation<\/li>
      • Multi-protocol communication bridges with dual EUSART and I2C<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        PIC18F46K22-I\/PT<\/td>Microchip<\/td>64KB Flash, 40-pin variant<\/td><\/tr>
        PIC18F45K50-I\/PT<\/td>Microchip<\/td>USB 2.0 capable<\/td><\/tr>
        ATmega328P-AU<\/td>Microchip<\/td>32KB Flash, AVR core<\/td><\/tr>
        STM8S105K4T6<\/td>ST<\/td>16MHz, 16KB Flash, STM8 core<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6543","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=6543"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6543\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=6543"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=6543"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=6543"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=6543"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}