Keil for ARM 上面的介绍是这样的。
STM32F103ZCT6
ARM 32-bit Cortex-M3 Microcontroller, 72MHz, 256kB Flash, 64kB SRAM,
External Memory Interface (EMI) for SDRAM, SRAM, Flash, ROM,
PLL, Embedded Internal RC 8MHz and 32kHz, Real-Time Clock,
Nested Interrupt Controller, Power Saving Modes, JTAG and SWD,
5 Synch. 16-bit Timers with Input Capture, Output Compare and PWM,
16-bit 6-ch Advanced Timer, 2 16-bit Watchdog Timers, SysTick Timer,
2 SPI, 2 I2C, 5 USART, USB 2.0 Full Speed Interface, CAN 2.0B Active,
2 12-bit 16-ch A/D Converter, 2 D/A Converter, I2S, Fast I/O Ports
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