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产品手册中介绍了关于这两种芯片在电气特性方面和适用温度范围的一些区别，除此之外这两款芯片还有什么不同的地方导致他们的价格相差如此之大
MSP430F5438A-EP： Enhanced product 25-MHz MCU with 256-KB flash, 16-KB SRAM, 12-bit ADC, DMA, UART/SPI/I2C, timer
