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PDF M62393P Data sheet ( Hoja de datos )

Número de pieza M62393P
Descripción 8-BIT 8CH I2C-BUS D-A CONVERTER WITH BUFFER AMPLIFIERS
Fabricantes Mitsubishi 
Logotipo Mitsubishi Logotipo



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MITSUBISHI<Dig.Ana.INTERFACE>
M62393P/FP
8-BIT 8CH I 2C-BUS D-A CONVERTER WITH BUFFER AMPLIFIERS
DESCRIPTION
The M62393 is an integrated circuit semiconductor of
CMOS structure with 8 channels of built-in D-A converters
with output buffer operational amplifiers.
The input is 2-wires serial method is used for the transfer
format of digital data to allow connection with a microcomputer
with minimum wiring.
The output buffer operational amplifier employs AB class
output circuit with sync and source drive capacity of 1.0mA or
more,and it operates in the whole voltage range from VrefU to
ground.
And because of connects maximum 8 pieces to 64 channels
control.
FEATURES
•Digital data transfer format
I 2C-bus serial data method
•Output buffer operational amplifier
it operates in the whole voltage range from VrefU(0 to
5V)to ground.
•High output current drive capacity
±1.0mA over
•Preparation two high level reference voltage terminal
because there are two high level reference voltage
terminal,it can set up two kinds differ voltage range.
PIN CONFIGURATION (TOP VIEW)
R
SCL
SDA
Ao5
Ao6
Ao7
Ao8
VrefL
VrefU1
GND
1
2
3
4
5
6
7
8
9
10
20 CS0
19 CS1
18 CS2
17 VDD
16 Vcc
15 Ao4
14 Ao3
13 Ao2
12 Ao1
11 VrefU2
Outline 20P4(P)
20P2N-A(FP)
APPLICATION
Conversion from digital control data to analog control data
for home-use and industrial equipment.
Signal gain control or automatic adjustment of DISPLAY-
MONITOR or CTV.
BLOCK DIAGRAM
CS0 CS1 CS2 VDD
20 19 18
17
Ao4
15
Ao3
14
CHIP SELECT
8bit upper
segment R-2R
8bit Latch
8
8bit upper
segment R-2R
8bit Latch
8bit Latch
8bit upper
segment R-2R
8bit Latch
8bit upper
segment R-2R
Ao2
13
8bit upper
segment R-2R
8bit Latch
8bit Latch
8bit upper
segment R-2R
Ao1
12
Vcc VrefU2
16 11
8bit upper
segment R-2R
8bit Latch
8bit Latch
8bit upper
segment R-2R
1 23
8
R SCL SDA VrefL
4
Ao5
56
Ao6 Ao7
MITSUBISHI
ELECTRIC
7
Ao8
10 9
GND VrefU1
( 1 /5)

1 page




M62393P pdf
I2C BUS FORMAT
STA SLAVE ADDRESS
MITSUBISHI<Dig.Ana.INTERFACE>
M62393P/FP
8-BIT 8CH I 2C-BUS D-A CONVERTER WITH BUFFER AMPLIFIERS
WA
SUB ADDRESS
A DAC DATA
A STP
DIGITAL DATA FORMAT
•SLAVE ADDRESS
FIRST
1 001
(SLAVE ADDRESS)
LAST
A2 A1 A0
CHIP SELECT DATA
•DAC DATA
FIRST
MSB
D7 D6 D5
D4
LAST
LSB
D3 D2 D1 D0
•SUB ADDRESS
FIRST
XX
X
LAST
X S3 S2 S1 S0
DON'T CARE
CHANNEL SELECT DATA
(1)CHIP SELECT DATA
MSB
LSB
A2 A1 A0 CS2 CS1 CS0
0 0 0 0 00
0 0 1 0 01
0 1 0 0 10
1 1 1 1 11
(2)CHANNEL SELECT DATA
MSB
LSB
S3 S2 S1 S0
0000
00 01
0 0 10
Channel selection
Don't care.
ch1 selection
ch2 selection
0111
10 00
1001
ch11 selection
ch12 selection
Don't care.
1 1 11
(3)DAC DATA
FIRST
MSB
D7 D6 D5
000
000
000
000
D4
0
0
0
0
LAST
LSB
D3 D2 D1 D0
DAC output
0 0 0 0 (VrefU-VrefL)/256 x 1+VrefL
0 0 0 1 (VrefU-VrefL)/256 x 2+VrefL
0 0 1 0 (VrefU-VrefL)/256 x 3+VrefL
0 0 1 1 (VrefU-VrefL)/256 x 4+VrefL
Don't care.
1 1 11
1111
11
11
1 0 (VrefU-VrefL)/256 x 255+VrefL
11
VrefU
MITSUBISHI
ELECTRIC
( 5 /5)

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