C8051F347_Short

Small Form Factor Copyright © 2005 by Silicon Laboratories4.19.2005C8051F33225 MIPS, 4 kB Flash, 10-Bit ADC, 20-Pin Mixed-Signal MCUAnalog Peripherals10-Bit ADC-Programmable throughput up to 200 ksps-Up to 16 external inputs; programmable as single-ended or differential -Reference from internal V REF , V DD , or external pin -Internal or external start of conversion sources -Built-in temperature sensor (±3 °C)Comparator-Programmable hysteresis and response time -Configurable to generate interrupts or reset -Low current (0.4 µA)On-Chip Debug-On-chip debug circuitry facilitates full speed, non-intrusive in-system debug (no emulator required)-Provides breakpoints, single stepping, watchpoints -Inspect/modify memory, registers, and stack-Superior performance to emulation systems using ICE-chips, target pods, and socketsSupply Voltage: 2.7 to 3.6 V-Typical operating current:6.4 mA at 25 MHz 9 µA at 32 kHz -Typical stop mode current: <0.1 µATemperature Range: –40 to +85 °CHigh-Speed 8051 µC Core-Pipelined instruction architecture; executes 70% of instructions in 1 or 2 system clocks-Up to 25 MIPS throughput with 25 MHz clock -Expanded interrupt handlerMemory-768 bytes data RAM- 4 kB Flash; in-system programmable in 512 byte sectors (512 bytes are reserved)Digital Peripherals-17 port I/O; all are 5 V tolerant-Hardware SMBus™ (I2C™ compatible), SPI™, and UART serial ports available concurrently-Programmable 16-bit counter/timer array with three capture/compare modules, WDT- 4 general-purpose 16-bit counter/timers-Real-time clock mode using PCA or timer and external clock source Clock Sources-Two internal oscillators:-24.5 MHz, 2% accuracy supports UART operation -80 kHz low frequency, low-power-External oscillator: Crystal, RC, C, or Clock (1 or 2 pin modes)-Can switch between clock sources on-the-fly Package-20-Pin QFN (lead-free package)Ordering Part Numbers-C8051F332-GMSmall Form Factor Copyright © 2005 by Silicon Laboratories4.19.2005Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc.Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders25 MIPS, 4 kB Flash, 10-Bit ADC, 20-Pin Mixed-Signal MCUSelected Electrical Specifications(T A = –40 to +85 C°, V DD = 2.7 V unless otherwise specified)ParameterConditions MinTyp MaxUnitsGlobal CharacteristicsSupply Voltage 2.7 3.6V Supply Current with CPU activeClock = 25 MHz Clock = 1 MHzClock = 80 kHz; V DD Monitor Disabled Clock = 32 kHz; V DD Monitor Disabled———— 6.40.36209————mA mA µA µA Supply Current (shutdown)Oscillator off; V DD Monitor Disabled—<0.1—µA Clock Frequency RangeDC —25MHz Internal OscillatorsFrequency (OSC0)24.024.525.0MHz Frequency (OSC1)See Note—80—kHz A/D ConverterResolution10bits Integral Nonlinearity —±1/2±1LSB Differential NonlinearityGuaranteed Monotonic—±1/2±1LSB Signal-to-Noise Plus Distortion 5355.5—dB Throughput Rate ——200ksps Input Voltage Range0—V REF V ComparatorResponse Time Mode0(CP+) – (CP-) = 100 mV —0.1—µs Current Consumption Mode0—7.6—µA Response Time Mode1(CP+) – (CP-) = 100 mV —0.18—µs Current Consumption Mode1— 3.2—µA Response Time Mode2(CP+) – (CP-) = 100 mV —0.32—µs Current Consumption Mode2— 1.3—µA Response Time Mode3(CP+) – (CP-) = 100 mV—1—µs Current Consumption Mode3—0.4—µANote: OSC1 can be calibrated in 2.5% steps using an internal calibration register.Package InformationC8051F330DK Development Kit。

Small Form Factor Copyright © 2007 by Silicon Laboratories08.13.2007Analog Peripherals10-bit DAC (Current Mode)Comparator-Programmable hysteresis and response time -Configurable to generate interrupts or reset -Low currentOn-Chip Debug-On-chip debug circuitry facilitates full speed, non-intrusive in-system debug (no emulator required)-Provides breakpoints, single stepping, watchpoints -Inspect/modify memory, registers, and stack-Superior performance to emulation systems using ICE-chips, target pods, and socketsSupply Voltage: 2.7 to 3.6 VTemperature Range: –40 to +85 °CHigh-Speed 8051 µC Core-Pipelined instruction architecture; executes 70% of instructions in 1 or 2 system clocks-Up to 25 MIPS throughput with 25 MHz clock -Expanded interrupt handlerMemory-768 bytes data RAM-16 kB Flash; in-system programmable in 512 byte sectors (512 bytes are reserved)Digital Peripherals-17 port I/Os; all are 5 V tolerant-Hardware SMBus™ (I 2C™ compatible), SPI™, and crystaless-UART serial ports available concurrently-Programmable 16-bit counter/timer array with three capture/compare modules, WDT- 4 general-purpose 16-bit counter/timers -Timer with real-time clock mode -Clock sources-Two internal oscillators:-Precision 24.5 MHz, 2% accuracy over V DD and temperature -80 kHz low frequency, low-power-External oscillator: Crystal, RC, C, or Clock (1 or 2 pin modes)-Can switch between clock sources on-the-fly-Suspend mode for maximum power savings with fast wake-up (<1 us)Package-20-pin QFN-Pin compatible with C8051F33x family of devicesSmall Form Factor Copyright © 2007 by Silicon Laboratories 08.13.2007Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc.Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holdersSelected Electrical Specifications(T A = –40 to +85 C°, V DD = 2.7 V unless otherwise specified)ParameterConditionsMinTypMaxUnitsGlobal Characteristics Supply Voltage2.7—3.6V Supply Current with CPU ActiveClock = 25 MHz Clock = 1 MHzClock = 80 kHz; V DD monitor disabled Clock = 32 kHz; V DD monitor disabled ————TBD TBD TBD TBD ————mA mA µA µA Supply Current (shutdown)Oscillator off; V DD monitor disabled—TBD —µA Clock Frequency Range DC —25MHz Internal Oscillators Frequency (OSC0)24.024.525.0MHz Frequency (OSC1)—80—kHz ComparatorResponse Time Mode0(CP+) – (CP–) = 100 mV —TBD —µs Current Consumption Mode0—TBD —µA Response Time Mode1(CP+) – (CP–) = 100 mV —TBD —µs Current Consumption Mode1—TBD —µA Response Time Mode2(CP+) – (CP–) = 100 mV —TBD —µs Current Consumption Mode2—TBD —µA Response Time Mode3(CP+) – (CP–) = 100 mV—TBD —µs Current Consumption Mode3—TBD—µAQFN-20 Package Information DimensionMillimetersDimensionMillimetersMinNom Max MinNom MaxA 0.800.90 1.00E 4.00 BSC.A10.030.070.11E2 2.55 2.70 2.85A30.25 REF L 0.300.400.50b 0.180.250.30aaa ——0.15D 4.00 BSC.bbb ——0.10D2 2.55 2.70 2.85ddd ——0.05e0.50 BSC.eee——0.08C8051F337DK Development Kit。

Low-Voltage/Low-Power Copyright © 2008 by Silicon Laboratories11.11.2008Supply 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) foruse in one-cell mode; can supply external devices-Typical sleep mode current < 0.1 µA; 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 23 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 averagingaccumulatorTwo Comparators-Programmable hysteresis and response time -Configurable as interrupt or reset source -Low current (< 0.5 µA)-Up to 23 Capacitive Touch Sense inputsMemoryHigh-Speed 8051 µC Core-Pipe-lined instruction architecture; executes 70% of instructionsin 1 or 2 system clocks-25 MIPS peak throughput with 25 MHz clock -Expanded interrupt handlerDigital Peripherals-24 port I/O; All 5 V tolerant with programmable drive strength -Hardware enhanced UART, SPI and SMBus™ serial portsavailable 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-oscillateLow-Voltage/Low-Power Copyright © 2008 by Silicon Laboratories 11.11.2008Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc.Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holdersSelected Electrical Specifications(At 25 C°)ParameterConditionsMin Typ Max Units Supply Input Voltagetwo-cell mode one-cell modeDC-DC converter disabled 1.8— 3.6V DC-DC converter enabled 0.9— 1.8V DC-DC Boost Converter Output Power (V OUT = 1.8–3.3 V)Includes on and off-chip current ——65mW Supply Current with CPU Active VDD = 1.8–3.6 V Clock = 24.5 MHz(±2% internal precision oscillator)— 4.1—mA Supply Current (shutdown) (V BAT = 1.8 V)Sleep mode; smaRTClock off —50—nA Sleep mode; smaRTClock running—0.6—µA Clock Frequency Range DC —25MHz Wakeup Timetwo-cell mode —2—µs one-cell mode—10—µs Internal OscillatorFrequency Precision oscillator 2424.525MHz Low power oscillator182022MHz A/D ConverterResolution10bits Throughput Rate——300kspsPackage Information: 32-Pin QFNMM MIN TYP MAX A 0.800.9 1.00A10.000.020.05A200.65 1.00A3—0.25—b 0.180.250.30D — 5.00—D2 1.25 2.70 3.25E — 5.00—E2 1.25 2.70 3.25e —0.50—L 0.300.400.50N —32—ND —8—NE —8—R0.09——Package Information: 32-Pin LQFPMMMIN TYP MAX MINTYP MAXA —— 1.60E 9.00 BSC A10.05—0.15E17.00 BSC A2 1.35 1.40 1.45L 0.450.600.75b 0.300.370.45aaa 0.20c 0.09—0.20bbb 0.20D 9.00 BSC ccc 0.10D17.00 BSC ddd 0.20e0.80BSCθ0° 3.5°7°。

由于C8051F单片机是3.3V低功耗、高速单片机，与大家过去应用传统的5V供电低速单片机在引脚处理与PCB布板方面会有一些区别，我们总结了这方面的经验，提供给大家。

以避免在应用设计上走弯路。

一、电源和地线方面的处理1、模拟电源和数字电源要分别供电，可以使用两个稳压电源分别供电，但是两个电源之间的电压差必须满足数据手册中的规定（<0.5V，相差0.3V是比较理想的）。

实际应用中模拟电源和数字电源可以来自同一个稳压器的输出，只A V+与VDD之间接简单的滤波器也是很有效的。

这里要加一个小电感，也可以用底阻值的电阻（通常2欧姆，电阻要有足够的寄生电感。

）这种方式既能降低成本又能减少体积。

（关于这一点可以参考C8051F各种目标板的原理图的电源部分）。

2、在地线方面，模拟地和数字地要分开布线，然后在一点通过磁珠连接，在实际应用中也可以使用0欧姆电阻连接的。

该电阻要有寄生电感，另外，在布线时一定要注意地线应该尽可能的粗，或者采用大面积覆盖地，电源线也要尽量粗，并且在单片机所有电源和地之间以及每个外围集成电路VDD和GND间加去耦合电容。

3、如果所使用的器件上有模拟电源，模拟地，数字电源和数字地，所有这些引脚不可以悬空，必须连接。

二、对JTAG引脚的处理对电路设计时，JTAG口的TCK要加3.3V上拉。

上拉电阻值取4.4K。

另外，要考虑到在成本阶段（此时已不需要通过JTAG编辑），将所有JTAG引脚用10K 电阻下拉到地，这样更能提高系统的抗干扰能力，对于提高系统的稳定性是非常主要的。

三、对未用到的IO口/模拟书输入的处理对未用到的IO口建议通过电阻下拉到地。

未用的模拟输入也要接地（接模拟到）。

四、在电路设计时的IO口/模拟输入口的保护1、在可能对IO口有瞬态冲击的情况下，一定要对IO口进行保护，如可能会有瞬间大电流，就要在IO口上串接限流电阻，建议取值100欧姆。

如有瞬态大电压，就要在IO口上接TVS或快速反应二极管。