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产品详情：
Si1000/1/2/3/4/5 devices are fully integrated mixed-signal system-on-a-chip MCUs. Highlighted features
are listed below. Refer to Table 2.1 for specific product feature selection and part ordering numbers.
?240–960 MHz EZRadioPRO? transceiver
?Single/Dual battery operation with on-chip dc-dc boost converter
?High-speed pipelined 8051-compatible microcontroller core (up to 25 MIPS)
?In-system, full-speed, non-intrusive debug interface (on-chip)
?True 10-bit 300 ksps 23-channel single-ended ADC with analog multiplexer
?6-bit programmable current reference
?Precision programmable 24.5 MHz internal oscillator with spread spectrum technology
?64 kB or 32 kB of on-chip flash memory
?4352 bytes of on-chip RAM
?SMBus/I2C, Enhanced UART, and two Enhanced SPI serial interfaces implemented in hardware
(SPI1 is dedicated for communication with the EZRadioPRO peripheral)
?Four general-purpose 16-bit timers
?Programmable counter/timer array (PCA) with six capture/compare modules and watchdog timer (WDT) function
?On-chip power-on reset, VDD monitor, and temperature sensor
?Two on-chip voltage comparators with 18 touch sense inputs
?19 or 22 port I/O (5 V tolerant except for GPIO_0, GPIO_1, and GPIO_2)