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PDF M62339FP Data sheet ( Hoja de datos )

Número de pieza M62339FP
Descripción 8-BIT 4CH I2C BUS D-A CONVERTER WITH BUFFER AMPLIFIERS
Fabricantes Mitsubishi 
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MITSUBISHI <STD. LINEAR ICs>
M62334P/FP
M62339P/FP
8-BIT 4CH I2C BUS D-A CONVERTER WITH BUFFER AMPLIFIERS
DESCRIPT ION
The M62334/M62339 is an integrated circuit
semiconductor of CMOS structure with 4 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
Vcc to ground.
The M62333 and the M62338 differ only in their slave
address.
FEATUR ES
Digital data transfer format
I2C BUS serial data method
Output buffer operational amplifier
it operates in the whole voltage range from Vcc to
ground.
High output current drive capacity
±1.0mA over
APPLIC ATION
Conversion from digital data to analog control data for
home-use and industrial equipment.
Signal gain control or automatic adjustment of DISPLAY-
MONITOR or CTV.
PIN CONFIGURATION(TOP VIEW)
Ao1 1
Ao2 2
Ao3 3
Ao4 4
8 Vcc
7 SCL
6 SDA
5 GND
Outline 8P4 (P)
8P2S-A (FP)
BLOCK DIAGRAM
Vcc
8
POWER ON
RESET
SCL
7
SDA
6
I2C BUS TRANSCEIVER
CHANNEL
DECODER
8
8bit Latch
8bit upper
segment R-2R
8bit Latch
8bit upper
segment R-2R
8bit Latch
8bit upper
segment R-2R
GND
5
8bit Latch
8bit upper
segment R-2R
12
Ao1 Ao2
3
Ao3
MITSUBISHI ELECTRIC
4
Ao4
980714 rev.E ( 1/ 6 )

1 page




M62339FP pdf
MITSUBISHI <STD. LINEAR ICs>
M62334P/FP
M62339P/FP
8-BIT 4CH I2C BUS D-A CONVERTER WITH BUFFER AMPLIFIERS
TIMING CHART (MODEL)
•start condition to slave address bite
SDA
1 2 3 4 5 6 7W A
SCL
D/A
output
start condition
•sub address bite
SDA
1 2 34 5 6 7 8 A
SCL
D/A
output
•DAC data bite to stop condition
SDA
1 23 4 5 6 7 8 A
SCL
D/A
output
stop condition
•Start condition
With SCL at HIGH,SDA line goes from HIGH to LOW
•Stop condition
With SCL at HIGH,SDA line goes from LOW to HIGH
(Under normal circumstances,SDA is changed when SCL is LOW)
•Acknowledge bit
The receiving IC has to pull down SDA line whenever receive slave data.
(The transmitting IC releases the SDA line just then transmit 8bit data.)
Digital Data Formats
STA SLAVE ADDRESS
W A SUB ADDRESS 1 A DAC DATA 1 A
SUB ADDRESS 2 A DAC DATA 2 A
SUB ADDRESS n A DAC DATA n A STP
MITSUBISHI ELECTRIC
980714 rev.E ( 5/ 6 )

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