基于C8051F99x设计的低功耗高灵敏容性触摸技术
25 mips, 8 kb flash, ultra low power, capacitive sensing mcu
the quicksense™ c8051f99x family of capacitive sensing mcus provides the lowest power and highest sensitivity touch sensing solution for capacitive buttons, sliders, wheels and capacitive proximity sensing. architected from the popular c8051f9xx platform the device features a 150 µa/mhz active mode and multiple sleep modes as low as 10 na. with up to 14 capacitive sensing inputs and a patent-pending charge timing hardware capacitance to digital converter, the c8051f99x achieves unparalleled touch sensitivity, speed and ultra-low power in packages as small as a 3 mm x 3 mm qfn20.
c8051f99x系列主要特性：
capacitance to digital converter
-supports buttons, sliders, wheels, and capacitive proximity sensing
-fast 40 μs per channel conversion time
-16-bit resolution
-up to 14 input channels
-auto-accumulate up to 64x samples
ultra-low power
-150 μa/mhz active current from 1.8–3.6 v @ 25 mhz
-10 na sleep current with data retention; bod disabled
-50 na sleep current with data retention; bod enabled
-300 na sleep current with smartclock (internal oscillator)
-600 na sleep current with smartclock (external crystal)
-2 μs wake up from sleep
supply voltage 1.8 to 3.6 v
-built-in brown-out detector
-on-chip ldo regulator for core supply
analog to digital converter
-75 ksps with 12-bit resolution (f990/6)
-330 ksps with 8-bit resolution
-up to 10-channels
-autonomous burst mode with 16-bit averaging accumulator
-vref from external pin, vdd, or internal regulator
-built-in temperature sensor
internal 6-bit current reference
-2 ranges: source or sink capability
-up to 14-bit resolution via pwm interpolation
comparator
-programmable hysteresis and response time
-configurable as interrupt or reset source
-low current (< 0.4 μa)
development kit: c8051f996dk
high-speed 8051 μc 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
memory
-512 bytes internal data ram (256 + 256)
-8 kb flash; in-system programmable in 512 byte sectors; full read/write/erase functionality over the entire supply range
on-chip debug
-on-chip debug circuitry facilitates full speed, non-intrusive in-system debug
digital peripherals
-17 port i/o; programmable drive strength
-hardware enhanced uart, spi and smbus™ serial ports
-crc block provides 16-bit ccitt polynomial calculation
-four general purpose 16-bit counter/timers
-16-bit programmable counter array (pca) with three capture/compare modules and enhanced pwm functionality
clock sources
-24.5 mhz ±2% oscillator; supports crystal-less uart operation
-low power internal oscillator: 20 mhz
-external oscillator: crystal, rc, c, cmos clock
-can switch clock sources on-the-fly; useful for power saving modes
temperature range: -40 to +85 °c
package options
-24-pin qfn (4x4 mm), rohs compliant
-24-pin qsop (easy to hand solder) rohs compliant
-20-pin qfn (3x3 mm), rohs compliant
c8051f99x 应用：
instrumentation panels
touch panels
kiosks
gaming systems
industrial interface
security
residential hvac
home appliances
toys
keyboards
fax/printer/scanner front panels
图1。c8051f990方框图
图2。c8051f991方框图
图3。c8051f996方框图
图4。c8051f997方框图
图5。c8051f99x系列i/o端口功能方框图
c8051f996 开发套件
the c8051f996dk development kit contains everything needed to develop applications with the c8051f990, f991, f996 and f997 family ofultra low powercapacitive sensing mcus and the c8051f980, f981, f982, f983, f985, f986, f987, f988 and f989 family of ultra low power mcus.
the c8051f996 development kit contains the following items:
c8051f996 target board
c8051fxxx development kit quick-start guide
silicon laboratories ide and product information cd-rom. cd content includes the following:
silicon laboratories integrated development environment (ide)
evaluation version of 8051 development tools (macro assembler, linker, c compiler)
source code examples and register definition files
documentation
c8051f996 development kit user’s guide (this document)
third party tools cd
ac to dc power adapter
usb debug adapter (usb to debug interface)
2 usb cables
2 aaa batteries
图6。c8051f996 目标板外形图
图7。c8051f996 目标板电路图（1）
图8。c8051f996 目标板电路图（2）
图9。c8051f996 目标板电路图（3）
所托瑞安赋能商用车智能驾驶“低碳时代”
T333四线-十六线译码器的应用电路图
智加科技与满帮集团L4级无人驾驶技术成功落地
未来已来 万物互联的5G时代似乎触手可及
黄章宣布魅族超级快充量产时间 魅族Pro7恐错失该技术
基于C8051F99x设计的低功耗高灵敏容性触摸技术
仪表放大器屏蔽层驱动产生器(INA105)
压电晶体
超高压插件陶瓷电容的特点及作用
简述访问电源参考设计库的理由
高集成度32通道超声波发射器优化手持式扫描仪设计
重庆电信: 5GWIFI抢先体验,渝中区可实现 5G应用场景体验
视频监控系统发展有以下两大目标
崛起中的‘芯’力量：解析中国CPU芯片企业的发展现状
为什么所有家庭必装的安防设备都选择“红外探测器”？
百度文心一言发布，李彦宏和王海峰都说“不成熟”
专为强化谐振拓扑运作性能打造，英飞凌推出全新 650 V CoolMOS™ CFD7
AI外呼机器人都这么卷了吗？思必驰发音人音色自训练平台助力
一文解析液压系统溢流阀的作用是什么
深度解读嵌入式微控制器应用的OTA更新
the quicksense™ c8051f99x family of capacitive sensing mcus provides the lowest power and highest sensitivity touch sensing solution for capacitive buttons, sliders, wheels and capacitive proximity sensing. architected from the popular c8051f9xx platform the device features a 150 µa/mhz active mode and multiple sleep modes as low as 10 na. with up to 14 capacitive sensing inputs and a patent-pending charge timing hardware capacitance to digital converter, the c8051f99x achieves unparalleled touch sensitivity, speed and ultra-low power in packages as small as a 3 mm x 3 mm qfn20.
c8051f99x系列主要特性：
capacitance to digital converter
-supports buttons, sliders, wheels, and capacitive proximity sensing
-fast 40 μs per channel conversion time
-16-bit resolution
-up to 14 input channels
-auto-accumulate up to 64x samples
ultra-low power
-150 μa/mhz active current from 1.8–3.6 v @ 25 mhz
-10 na sleep current with data retention; bod disabled
-50 na sleep current with data retention; bod enabled
-300 na sleep current with smartclock (internal oscillator)
-600 na sleep current with smartclock (external crystal)
-2 μs wake up from sleep
supply voltage 1.8 to 3.6 v
-built-in brown-out detector
-on-chip ldo regulator for core supply
analog to digital converter
-75 ksps with 12-bit resolution (f990/6)
-330 ksps with 8-bit resolution
-up to 10-channels
-autonomous burst mode with 16-bit averaging accumulator
-vref from external pin, vdd, or internal regulator
-built-in temperature sensor
internal 6-bit current reference
-2 ranges: source or sink capability
-up to 14-bit resolution via pwm interpolation
comparator
-programmable hysteresis and response time
-configurable as interrupt or reset source
-low current (< 0.4 μa)
development kit: c8051f996dk
high-speed 8051 μc 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
memory
-512 bytes internal data ram (256 + 256)
-8 kb flash; in-system programmable in 512 byte sectors; full read/write/erase functionality over the entire supply range
on-chip debug
-on-chip debug circuitry facilitates full speed, non-intrusive in-system debug
digital peripherals
-17 port i/o; programmable drive strength
-hardware enhanced uart, spi and smbus™ serial ports
-crc block provides 16-bit ccitt polynomial calculation
-four general purpose 16-bit counter/timers
-16-bit programmable counter array (pca) with three capture/compare modules and enhanced pwm functionality
clock sources
-24.5 mhz ±2% oscillator; supports crystal-less uart operation
-low power internal oscillator: 20 mhz
-external oscillator: crystal, rc, c, cmos clock
-can switch clock sources on-the-fly; useful for power saving modes
temperature range: -40 to +85 °c
package options
-24-pin qfn (4x4 mm), rohs compliant
-24-pin qsop (easy to hand solder) rohs compliant
-20-pin qfn (3x3 mm), rohs compliant
c8051f99x 应用：
instrumentation panels
touch panels
kiosks
gaming systems
industrial interface
security
residential hvac
home appliances
toys
keyboards
fax/printer/scanner front panels
图1。c8051f990方框图
图2。c8051f991方框图
图3。c8051f996方框图
图4。c8051f997方框图
图5。c8051f99x系列i/o端口功能方框图
c8051f996 开发套件
the c8051f996dk development kit contains everything needed to develop applications with the c8051f990, f991, f996 and f997 family ofultra low powercapacitive sensing mcus and the c8051f980, f981, f982, f983, f985, f986, f987, f988 and f989 family of ultra low power mcus.
the c8051f996 development kit contains the following items:
c8051f996 target board
c8051fxxx development kit quick-start guide
silicon laboratories ide and product information cd-rom. cd content includes the following:
silicon laboratories integrated development environment (ide)
evaluation version of 8051 development tools (macro assembler, linker, c compiler)
source code examples and register definition files
documentation
c8051f996 development kit user’s guide (this document)
third party tools cd
ac to dc power adapter
usb debug adapter (usb to debug interface)
2 usb cables
2 aaa batteries
图6。c8051f996 目标板外形图
图7。c8051f996 目标板电路图（1）
图8。c8051f996 目标板电路图（2）
图9。c8051f996 目标板电路图（3）
所托瑞安赋能商用车智能驾驶“低碳时代”
T333四线-十六线译码器的应用电路图
智加科技与满帮集团L4级无人驾驶技术成功落地
未来已来 万物互联的5G时代似乎触手可及
黄章宣布魅族超级快充量产时间 魅族Pro7恐错失该技术
基于C8051F99x设计的低功耗高灵敏容性触摸技术
仪表放大器屏蔽层驱动产生器(INA105)
压电晶体
超高压插件陶瓷电容的特点及作用
简述访问电源参考设计库的理由
高集成度32通道超声波发射器优化手持式扫描仪设计
重庆电信: 5GWIFI抢先体验,渝中区可实现 5G应用场景体验
视频监控系统发展有以下两大目标
崛起中的‘芯’力量：解析中国CPU芯片企业的发展现状
为什么所有家庭必装的安防设备都选择“红外探测器”？
百度文心一言发布，李彦宏和王海峰都说“不成熟”
专为强化谐振拓扑运作性能打造，英飞凌推出全新 650 V CoolMOS™ CFD7
AI外呼机器人都这么卷了吗？思必驰发音人音色自训练平台助力
一文解析液压系统溢流阀的作用是什么
深度解读嵌入式微控制器应用的OTA更新