M62392P Datasheet, PDF (5/7 Pages) Mitsubishi Electric Semiconductor – 8-BIT 12CH I2C BUS D-A CONVERTER WITH BUFFER AMPLIFIERS

I2C BUS FORMAT
MITSUBISHI <Dig./Ana. INTERFACE>
M62392P,FP
8-BIT 12CH I2C BUS D-A CONVERTER WITH BUFFER AMPLIFIERS
STA SLAVE ADDRESS W A SUB ADDRESS A DAC DATA A STP
DIGITAL DATA FORMAT
•SLAVE ADDRESS
First
Last
1 0 0 1 A2 A1 A0
(SLAVE ADDRESS)
CHIP SELECT DATA
•DAC DATA
First
MSB
D7 D6 D5 D4
Last
LSB
D3 D2 D1 D0
•SUB ADDRESS
First
Last
X X X X S3 S2 S1 S0
Don't care
CHANNEL SELECT DATA
(1)CHIP SELECT DATA
MSB
LSB
A2 A1 A0 CS2 CS1 CS0
000 000
001 001
010 010
111 111
Lower 3bits(A0,A1,A2) are a programmable address. This
IC is accessed only when the lower 3 bits data of slave
address coincide with the data of CS0 to CS2.(refer to the
upper table)
(2)CHANNEL SELECT DATA
MSB
LSB
S3 S2 S1 S0
Channel selection
00 00
Don't care.
00 01
00 10
ch1 selection
ch2 selection
10 ₁₁
11 00
11 01
ch11 selection
ch12 selection
Don't care.
11 11
Don't care.
(3)DAC DATA
First
MSB
D7 D6 D5 D4
0000
0000
0000
0000
Last
LSB
D3 D2 D1 D0
0000
0001
0010
0 011
DAC output
(VrefU-VrefL)/256 x 1+VrefL
(VrefU-VrefL)/256 x 2+VrefL
(VrefU-VrefL)/256 x 3+VrefL
(VrefU-VrefL)/256 x 4+VrefL
1 1 1 1 1 1 1 0 (VrefU-VrefL)/256 x 255+VrefL
1 1 1 1 1 1 1 1 VrefU
MITSUBISHI ELECTRIC
1997-5-27C.rev ( 5 / 7 )