參數(shù)資料
型號： TMP86PM46NG
廠商： Toshiba Corporation
英文描述： Zener Diode; Application: General; Pd (mW): 500; Vz (V): 5.4 to 5.7; Condition Iz at Vz (mA): 5; C (pF) max: -; Condition VR at C (V):   ESD (kV) min: -; Package: DO-35
中文描述： 8位微控制器
文件頁數(shù)： 147/170頁
文件大?。?/td> 1430K
代理商： TMP86PM46NG
Page 137
TMP86PM46NG
12.6 Precautions about AD Converter
12.6.1 Analog input pin voltage range
Make sure the analog input pins (AIN0 to AIN7) are used at voltages within VAREF to AVSS. If any volt-
age outside this range is applied to one of the analog input pins, the converted value on that pin becomes uncer-
tain. The other analog input pins also are affected by that.
12.6.2 Analog input shared pins
The analog input pins (AIN0 to AIN7) are shared with input/output ports. When using any of the analog
inputs to execute AD conversion, do not execute input/output instructions for all other ports. This is necessary
to prevent the accuracy of AD conversion from degrading. Not only these analog input shared pins, some other
pins may also be affected by noise arising from input/output to and from adjacent pins.
12.6.3 Noise Countermeasure
The internal equivalent circuit of the analog input pins is shown in Figure 12-5. The higher the output
impedance of the analog input source, more easily they are susceptible to noise. Therefore, make sure the out-
put impedance of the signal source in your design is 5 k
or less. Toshiba also recommends attaching a capac-
itor external to the chip.
Figure 12-5 Analog Input Equivalent Circuit and Example of Input Pin Processing
DA converter
AINi
Analog comparator
Internal resistance
5 k
(typ)
Permissible signal
source impedance
5 k
(max)
Internal capacitance
C = 12 pF (typ.)
Note) i = 7 to 0
相關(guān)PDF資料
PDF描述
TMP86PM47AUG_07 Zener Diode; Application: General; Pd (mW): 500; Vz (V): 5.6 to 5.9; Condition Iz at Vz (mA): 5; C (pF) max: -; Condition VR at C (V):   ESD (kV) min: -; Package: DO-35
TMP86PM47AUG CMOS 8-Bit Microcontroller
TMP86PM47U CMOS 8-Bit Microcontroller
TMP86PM49FG Zener Diode; Application: General; Pd (mW): 500; Vz (V): 5.7 to 6.0; Condition Iz at Vz (mA): 5; C (pF) max: -; Condition VR at C (V):   ESD (kV) min: -; Package: DO-35
TMP86PM49NG Zener Diode; Application: General; Pd (mW): 500; Vz (V): 5.8 to 6.1; Condition Iz at Vz (mA): 5; C (pF) max: -; Condition VR at C (V):   ESD (kV) min: -; Package: DO-35
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TMP86PM46NG(OA) 制造商:Toshiba America Electronic Components 功能描述:
TMP86PM47AUG 功能描述:8位微控制器 -MCU 32kB OTP RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
TMP86PM47AUG_07 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:8 Bit Microcontroller
TMP86PM47U 制造商:Toshiba America Electronic Components 功能描述:MCU 8BIT TLCS-870 CISC 16KB EPROM 5V 44PQFP - Bulk
TMP86PM49FG 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:8 Bit Microcontroller
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