{"id":6672,"date":"2026-06-19T01:11:31","date_gmt":"2026-06-19T01:11:31","guid":{"rendered":"https:\/\/materialparts.com\/pic18lf452-i-pt\/"},"modified":"2026-06-19T01:11:31","modified_gmt":"2026-06-19T01:11:31","slug":"pic18lf452-i-pt","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/pic18lf452-i-pt\/","title":{"rendered":"PIC18LF452-I\/PT"},"content":{"rendered":"

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

The PIC18LF452-I\/PT from Microchip Technology is a high-performance 8-bit PIC18 enhanced flash microcontroller with 32 KB Flash, 1.5 KB SRAM, and 256 bytes EEPROM. Running at up to 40 MHz with 10 MIPS throughput, it features a 10-bit ADC, multiple communication interfaces (USART, SPI, I2C), and a robust peripheral set in a TQFP-44 package. The LF variant operates down to 2.0V for low-power applications.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u6838\u5fc3<\/td>\nPIC18 (8-bit enhanced RISC)<\/td>\n<\/tr>\n
Max Clock Frequency<\/td>\n40 MHz (10 MIPS)<\/td>\n<\/tr>\n
Flash Memory<\/td>\n32 KB<\/td>\n<\/tr>\n
SRAM<\/td>\n1.5 KB<\/td>\n<\/tr>\n
Data EEPROM<\/td>\n256 bytes<\/td>\n<\/tr>\n
Operating Voltage<\/td>\n2.0V to 5.5V (LF version)<\/td>\n<\/tr>\n
GPIO<\/td>\n34<\/td>\n<\/tr>\n
ADC<\/td>\n10-bit, 8 channels<\/td>\n<\/tr>\n
\u4ea4\u6d41<\/td>\n1\u00d7 USART (with LIN), 1\u00d7 MSSP (SPI\/I2C master)<\/td>\n<\/tr>\n
PWM<\/td>\n2 channels (CCP modules)<\/td>\n<\/tr>\n
\u8ba1\u65f6\u5668<\/td>\n4 (1\u00d7 16-bit, 2\u00d7 8-bit, 1\u00d7 8-bit with watchdog)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C (I grade)<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nTQFP-44 (10\u00d710 mm)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • PIC18 enhanced RISC architecture with 10 MIPS at 40 MHz<\/li>\n
  • 32 KB Flash with 1.5 KB SRAM and 256 bytes EEPROM<\/li>\n
  • Wide operating voltage: 2.0V to 5.5V (LF version)<\/li>\n
  • Two Capture\/Compare\/PWM (CCP) modules<\/li>\n
  • MSSP supporting SPI master and I2C master\/slave modes<\/li>\n
  • USART with LIN, IrDA, and auto-wake-up support<\/li>\n
  • 8\u00d78 hardware multiplier for single-cycle operation<\/li>\n
  • ICSP and ICD via 2-wire interface<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Industrial control and instrumentation<\/li>\n
    • Motor control and power conversion<\/li>\n
    • \u6d88\u8d39\u7535\u5b50\u4ea7\u54c1\u548c\u5bb6\u7528\u7535\u5668<\/li>\n
    • Automotive body electronics<\/li>\n
    • Battery-powered portable devices<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The PIC18LF452-I\/PT from Microchip Technology is a high-performance 8-bit PIC18 enhanced flash microcontroller with 32 KB Flash, 1.5 KB SRAM, and 256 bytes EEPROM. Running at up to 40 MHz with 10 MIPS throughput, it features a 10-bit ADC, multiple communication interfaces (USART, SPI, I2C), and a robust peripheral set in a TQFP-44 […]<\/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-6672","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, 40MHz, 32KB Flash, 2.0-5.5V, TQFP-44","date_code":"","package_case":"TQFP-44 (10\u00d710\u00d71.0 mm, 0.8mm pitch)","in_stock":3200,"datasheet":"https:\/\/ww1.microchip.com\/downloads\/en\/DeviceDoc\/39564C.pdf","price":"$3.20 @ 1ku","product_introduction":"The PIC18LF452-I\/PT from Microchip Technology is a high-performance 8-bit PIC18 MCU with 32 KB Flash, 1.5 KB SRAM, and 256 bytes EEPROM running at up to 40 MHz (10 MIPS). The LF variant operates from 2.0V to 5.5V with 10-bit ADC, dual CCP\/PWM, MSSP (SPI\/I2C), and USART with LIN\/IrDA in a TQFP-44 package, making it suitable for industrial control, motor drive, and battery-powered applications.","working_principle":"The PIC18LF452-I\/PT uses Microchip's PIC18 enhanced RISC architecture with a 2-stage pipeline. Most instructions execute in a single cycle (100 ns at 40 MHz) using a 16-bit instruction word. The architecture features 32-bit wide instructions with a linear program memory addressing up to 2 MB. The 8\u00d78 hardware multiplier completes operations in one cycle. Two CCP (Capture\/Compare\/PWM) modules provide 16-bit capture input, 16-bit compare output, and 10-bit PWM output. The MSSP (Master Synchronous Serial Port) supports SPI (clock rates up to 10 MHz) and I2C (master and slave modes at 400 kHz). The USART supports asynchronous serial communication with LIN, IrDA, and auto-baud detection. The 10-bit ADC uses a successive approximation register (SAR) with up to 8 analog inputs and programmable acquisition time.","pin_description":"\n
      Pin Group<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      Power<\/td>VDD, VSS, AVDD, AVSS<\/td>Power<\/td>Digital and analog supply\/ground<\/td><\/tr>\n
      Reset<\/td>MCLR<\/td>Input<\/td>Master clear (reset) with pull-up<\/td><\/tr>\n
      Oscillator<\/td>OSC1, OSC2<\/td>I\/O<\/td>Primary oscillator (up to 40 MHz)<\/td><\/tr>\n
      Debug<\/td>PGC, PGD<\/td>I\/O<\/td>ICSP programming and ICD debug<\/td><\/tr>\n
      ADC<\/td>RA0\/AN0-RA5\/AN4, RE0\/AN5-RE2\/AN7<\/td>I\/O<\/td>8 analog input channels<\/td><\/tr>\n
      GPIO<\/td>RA0-RA5, RB0-RB7, RC0-RC7, RD0-RD7, RE0-RE2<\/td>I\/O<\/td>34 GPIO with peripheral pin selection<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • Industrial control: PLC I\/O, process monitoring, and instrumentation<\/li>\n
      • Motor control: BLDC driver, stepper motor controller with PWM<\/li>\n
      • Consumer electronics: home appliance controllers and smart plugs<\/li>\n
      • Automotive body electronics: lighting and door control modules<\/li>\n
      • Battery-powered portable devices with 2.0V low-voltage operation<\/li>\n<\/ul>","alternative_models":"\n
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>\n
        Microchip<\/td>PIC18F452-I\/PT<\/td>TQFP-44<\/td>5V-only version (4.2-5.5V)<\/td><\/tr>\n
        Microchip<\/td>PIC18F4520-I\/PT<\/td>TQFP-44<\/td>Enhanced version, nanoWatt technology, more features<\/td><\/tr>\n
        Microchip<\/td>PIC18F4550-I\/PT<\/td>TQFP-44<\/td>With USB 2.0, 32KB Flash<\/td><\/tr>\n
        Microchip<\/td>PIC18F46K22-I\/PT<\/td>TQFP-44<\/td>64KB Flash, more peripherals, lower power<\/td><\/tr>\n
        ST<\/td>STM32F103C8T6<\/td>LQFP-48<\/td>32-bit Cortex-M3 alternative, similar pin count<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6672","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=6672"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6672\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=6672"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=6672"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=6672"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=6672"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}