- 您现在的位置：买卖IC网 > PDF目录365220 > M38748EDF-XXXFS (Mitsubishi Electric Corporation) SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER PDF资料下载
参数资料
| 型号： | M38748EDF-XXXFS |
| 厂商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| 中文描述： | 单芯片8位CMOS微机 |
| 文件页数： | 58/92页 |
| 文件大小： | 1292K |
| 代理商： | M38748EDF-XXXFS |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页当前第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页
58
3874 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
D-A CONVERTER
The 3874 group has an on-chip D-A converter with 8-bit resolution
and 1 channel. The D-A conversion is performed by setting the
value in the A-D/D-A conversion register. The result of D-A con-
verter is output from DA pin by setting the DA output enable bits to
“1”. When using the D-A converter, the corresponding port direc-
tion register bit (P8
0
/DA) should be set to “0” (input status).
The output analog voltage V is determined by the value n (base
10) in the A-D/D-A conversion register as follows:
V=V
REF
n/256 (n=0 to 255)
Where V
REF
is the reference voltage.
At reset, the D-A conversion registers are cleared to “00
16
”, the
DA output enable bits are cleared to “0”, and P8
0
/DA pin becomes
high impedance. The DA output is not buffered, so connect an ex-
ternal buffer when driving a low-impedance load. When using D-A
converter, set 4.0 V or more to V
CC
.
I
Note
When reading the A-D/D-A conversion register, the A-D conver-
sion result is read, and the set value for D-A conversion is not
read.
Fig. 61 Block diagram of D-A converter
Fig. 62 Equivalent connection circuit of D-A converter
P8
0
/DA
Data bus
D-A conversion register (8)
R-2R resistor ladder
DA
output enable bit
AV
SS
V
REF
“0”
“1”
MSB
“0”
“1”
R
2R
R
2R
R
2R
R
2R
R
2R
R
2R
R
2R
2R
LSB
2R
P8
0
/DA
D-A
conversion
register
DA
output enable bit
相关PDF资料 |
PDF描述 |
|---|---|
| M38748EDF-XXXGP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38748M7D-XXXFS | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38748M7D-XXXGP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38748M7F-XXXFS | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38748MBD-XXXFS | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M38748EDF-XXXGP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38748EDT-XXXFS | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38748EDT-XXXGP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38748EED-XXXFS | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38748EED-XXXGP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
发布紧急采购，3分钟左右您将得到回复。