PCB抄板行业的新秀：易博抄板工作室。我们这里可为您提供优质PCB抄板，PCB设计，芯片解密，PCB改板，IC解密，SMT贴片等服务以及PCB行业相关信息，选择PCB原理图设计，BOM制作等。
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C8051F921芯片的主要功能特征介绍，供客户及技术工程师在芯片解密项目及技术实现过程中进行技术参考和借鉴。– Supply Voltage: 0.9 to 3.6 V
– -One-cell mode supports 0.9-1.8 V operation
– -Two-cell mode supports 1.8-3.6 V operation
– -Built-in dc-dc converter with 1.8 -3.3 V output (65 mW max) for use in one-cell mode; can supply external devices
– -Typical sleep mode current < 0.1 ; retains state and RAM?contents over full supply range; fast wakeup
– -2 built-in brown-out detectors cover sleep and active modes
– 10-Bit Analog to Digital Converter
– -Up to 300 ksps
– -Up to 15 external inputs
– -External pin or internal VREF (no external capacitor required)
– -Built-in temperature sensor
– -External conversion start input option
– -Autonomous Burst Mode with 16-bit automatic averaging accumulator
– Two Comparators
– -Programmable hysteresis and response time
– -Configurable as interrupt or reset source
– -Low current (< 0.5 )
– -Up to 15 Capacitive Touch Sense inputs
– Memory
– -4352 bytes internal data RAM (256 + 4K)
– -32 kB bytes Flash; In-system programmable in 1024-byte sec?tors; Full read/write/erase functionality over the entiresupply range
– On-Chip Debug
– -On-chip debug circuitry facilitates full speed, non-intrusive in-system debug (no emulator required)
– High-Speed 8051 Core
– -Pipe-lined instruction architecture; executes 70% of instructions in 1 or 2 system clocks
– -25 MIPS peak throughput with 25 MHz clock
– -Expanded interrupt handler
– Digital Peripherals
– -16 port I/O; All 5 V tolerant with programmable drive strength
– -Hardware enhanced UART, SPI and SMBus? serial ports available concurrently
– -Low power 32-bit smaRTClock (0.5 uA) operates down to 0.9V
– -Four general purpose 16-bit counter/timers
– -16-bit programmable counter array (PCA) with six capture/com?pare modules and watchdog timer:
– 8, 9, 10, 11, or 16-bit PWM
– Rising/falling edge capture
– Frequency output
– Software timer
– Clock Sources
– -Precision internal oscillators: 24.5 MHz with ±2% accuracy sup?ports UART operation; spread-spectrum mode for reduced EMI
– -Low power internal oscillator: 20 MHz
– -External oscillator: Crystal, RC, C, CMOS clock
– -smaRTClock oscillator: 32.768 kHz crystal or self-oscillate
– -Can switch between clock sources on-the-fly; useful in power saving modes
– Ultra-Small Package
– -24-pin QFN (4x4 mm)
– Temperature Range: -40 to +85 °C
