{"id":2740,"date":"2026-05-25T02:06:02","date_gmt":"2026-05-25T02:06:02","guid":{"rendered":"https:\/\/materialparts.com\/msp430f5438aipzr\/"},"modified":"2026-05-25T02:06:02","modified_gmt":"2026-05-25T02:06:02","slug":"msp430f5438aipzr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/msp430f5438aipzr\/","title":{"rendered":"MSP430F5438AIPZR"},"content":{"rendered":"

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

The MSP430F5438AIPZR from Texas Instruments is a 25MHz ultra-low-power 16-bit MCU with 256KB Flash and 16KB SRAM in a 100-LQFP package. It features a 12-bit ADC, 4 USCI modules (UART\/SPI\/I2C), hardware multiplier, DMA, and RTC for portable measurement applications.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
\u6838\u5fc3<\/td>\nMSP430 16-bit RISC<\/td>\n<\/tr>\n
Max Frequency<\/td>\n25MHz<\/td>\n<\/tr>\n
\u95ea\u5149\u706f<\/td>\n256KB<\/td>\n<\/tr>\n
RAM<\/td>\n16KB<\/td>\n<\/tr>\n
ADC<\/td>\n12-bit SAR, 14 external + 2 internal channels<\/td>\n<\/tr>\n
USCI Modules<\/td>\n4 (UART\/SPI\/I2C)<\/td>\n<\/tr>\n
GPIO<\/td>\n87<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n1.8V ~ 3.6V<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n100-LQFP (16 x 16mm)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Ultra-low-power: 230uA\/MHz active, 2.1uA standby, 0.1uA shutdown<\/li>\n
  • 256KB Flash + 16KB SRAM<\/li>\n
  • 4 USCI modules (8 total interfaces: 4x UART\/SPI, 4x I2C\/SPI)<\/li>\n
  • 12-bit ADC with internal reference and autoscan<\/li>\n
  • Hardware multiplier supporting 32-bit operations<\/li>\n
  • 3-channel DMA and RTC with alarm<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Portable measurement instruments<\/li>\n
    • Digital motor control<\/li>\n
    • Remote controls and thermostats<\/li>\n
    • Hand-held meters and data loggers<\/li>\n
    • Sensor systems and industrial control<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The MSP430F5438AIPZR from Texas Instruments is a 25MHz ultra-low-power 16-bit MCU with 256KB Flash and 16KB SRAM in a 100-LQFP package. It features a 12-bit ADC, 4 USCI modules (UART\/SPI\/I2C), hardware multiplier, DMA, and RTC for portable measurement applications. Key Specifications Core MSP430 16-bit RISC Max Frequency 25MHz Flash 256KB RAM 16KB ADC […]<\/p>\n","protected":false},"author":2,"featured_media":2758,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,25],"tags":[],"chip_brand":[138],"class_list":["post-2740","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-integrated-circuits-ics","category-microcontrollers-mcu","chip_brand-ti"],"acf":{"brief_explanation":"25MHz 16-bit MCU, 256KB Flash, 12-bit ADC, 4 USCI, 100-LQFP","date_code":"","package_case":"100-LQFP (PZ) (16.0 x 16.0 x 1.4 mm)","in_stock":12182,"datasheet":"https:\/\/www.ti.com\/product\/MSP430F5438A","price":"$5.40 @ 1ku","product_introduction":"The MSP430F5438AIPZR from Texas Instruments is an ultra-low-power 16-bit microcontroller from the MSP430F5xx family, optimized for portable measurement and industrial applications. It features 256KB Flash, 16KB SRAM, and a 25MHz CPU. Four USCI modules provide up to 8 independent communication interfaces (4 UART\/IrDA\/SPI + 4 I2C\/SPI). The 12-bit SAR ADC with 14 external channels and internal reference handles precision measurement. A hardware multiplier supports 32-bit operations, and 3-channel DMA reduces CPU overhead. Active mode draws 230uA\/MHz at 3.0V, while standby with RTC is only 2.1uA.","working_principle":"The MSP430F5438AIPZR is based on a 16-bit RISC CPU with 27 core instructions and 7 addressing modes for efficient code density. The unified clock system (UCS) uses an FLL to multiply a 32kHz crystal up to 25MHz, with VLO and REFO as internal clock sources. The DCO enables 3.5us wakeup from standby. Each USCI module has independent baud-rate generators and supports simultaneous UART\/SPI or I2C\/SPI operation. The ADC12 uses a sample-and-hold with programmable timing, and autoscan sequences multiple channels without CPU intervention. The DMA controller handles memory-to-memory and peripheral-to-memory transfers autonomously.","pin_description":"
      Pin Group<\/th>Count<\/th>Function<\/th><\/tr>
      GPIO (Port 1-11)<\/td>87<\/td>General-purpose I\/O (multiplexed with peripherals)<\/td><\/tr>
      ADC12 inputs<\/td>14<\/td>Analog inputs (A0-A13)<\/td><\/tr>
      USCI (4 modules)<\/td>16<\/td>UART\/SPI\/I2C data and clock pins<\/td><\/tr>
      Timer I\/O<\/td>15<\/td>Timer_A0\/TA1\/TB0 capture\/compare\/PWM<\/td><\/tr>
      Power<\/td>8<\/td>DVCC, AVCC, DVSS, AVSS, VCORE<\/td><\/tr>
      Debug<\/td>2<\/td>SBW (Spy-Bi-Wire) \/ JTAG<\/td><\/tr>
      Reset\/Clock<\/td>4<\/td>RST\/NMI, XIN\/XOUT, XT1\/XT2<\/td><\/tr><\/table>","application_scenarios":"
      • Portable data acquisition and measurement instruments<\/li>
      • Digital motor control with sensor feedback<\/li>
      • Remote control and thermostat systems<\/li>
      • Hand-held multimeters and energy meters<\/li>
      • Industrial sensor networking nodes<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>MSP430F5438IPZR<\/td>100-LQFP<\/td>Original version, 18MHz<\/td><\/tr>
        TI<\/td>MSP430F6438IPZR<\/td>100-LQFP<\/td>LCD driver version<\/td><\/tr>
        TI<\/td>MSP430F5435AIPZR<\/td>100-LQFP<\/td>128KB Flash, lower cost<\/td><\/tr>
        Renesas<\/td>RL78\/G14 R5F104LEA<\/td>100-LQFP<\/td>16-bit low-power alternative<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2740","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=2740"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2740\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media\/2758"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=2740"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=2740"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=2740"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=2740"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}