參數(shù)資料
型號： MB89F538-101P
廠商： FUJITSU LTD
元件分類： 微控制器/微處理器
英文描述： MICROCONTROLLER, PDIP64
封裝： 17 X 58 MM, 5.65 MM HEIGHT, 1.778 MM PITCH, SHRINK, PLASTIC, DIP-64
文件頁數(shù)： 49/72頁
文件大?。?/td> 2290K
代理商： MB89F538-101P
MB89530A Series
DS07-12547-7E
53
(5) Precautionary Information
Input Impedance of Analog Input Pins
The A/D converter of MB89530A has a sample & hold circuit as shown below, which uses a sample-and-hold
capacitor to obtain the voltage at the analog input pin for 8 instruction cycles following the start of A/D conversion.
For this reason if the external circuits providing the analog input signal have high output impedance, the analog
input voltage may not stabilize within the analog input sampling time. It is therefore recommended that the output
impedance of external circuits be reduced to 10 k
or less.
About error
The smaller the absolute value |AVR - AVss| is, the greater the relative error becomes.
Analog Input Equivalent Circuit
C
R
Comparator
If analog input impedance is
10 k
or more, the use of a
capacitor of approximately
0.1
F is recommended.
Analog input pin
Sample-and-hold circuit
Closes 8 instruction cycles
after the start of A/D conversion
Analog channel selector
MB89535A/537A/537AC/538A/538AC
C := 45 pF
R := 2.2 k
MB89F538
C := 30 pF
R := 3.2 k
MB89F538L
C := 49 pF
R := 7.1 k
MB89P538, MB89P530
C := 64 pF
R := 3.0 k
相關(guān)PDF資料
PDF描述
MB89538HCPF 8-BIT, MROM, 12.5 MHz, MICROCONTROLLER, PQFP64
MB89537HPFM 8-BIT, MROM, 12.5 MHz, MICROCONTROLLER, PQFP64
MB89537HC-SH 8-BIT, MROM, 12.5 MHz, MICROCONTROLLER, PDIP64
MB89537HCPVF 8-BIT, MROM, 12.5 MHz, MICROCONTROLLER, PQFP64
MB89538HPF 8-BIT, MROM, 12.5 MHz, MICROCONTROLLER, PQFP64
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MB89F538-101PF 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Original Microcontroller CMOS, F-2MC-8L MB89530A Series
MB89F538-101PFM 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Original Microcontroller CMOS, F-2MC-8L MB89530A Series
MB89F538-101PMCR-GE1 制造商:FUJITSU 功能描述:
MB89F538-101P-SH 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Original Microcontroller CMOS, F-2MC-8L MB89530A Series
MB89F538-101PV 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Original Microcontroller
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