MAX5816 MAXIM [Maxim Integrated Products], MAX5816 Datasheet - Page 18

• Manufacturer Part Number: MAX5816
• Description: Ultra-Small, Quad-Channel, 12-Bit Buffered Output DAC with Internal Reference and I2C Interface
• Manufacturer: MAXIM [Maxim Integrated Products]

Figure 5. Multiple Register Write Sequence (Standard I
Figure 6. I
Figure 7. Standard I
Ultra-Small, Quad-Channel, 12-Bit Buffered Output DAC
SDA
SCL
START
SDA
SCL
SDA
SCL
2
C Multibyte Register Write Sequence (Multibyte Protocol)
START
START
0 0 0 1
BYTE #1: I
WRITE ADDRESS
ADDRESS
 Maxim Integrated Products 18
2
BYTE #1: I
C Register Read Sequence
BYTE #1: DEVICE ADDRESS
0 0 0 1 1 A1 A0
2
0 0 0 1 1 A1 A0
C SLAVE
1 A1 A0 W A
WRITE ADDRESS
WRITE ADDRESS
2
C SLAVE ADDRESS
A
ACK. GENERATED BY MAX5816
with Internal Reference and I
0 0 N
BYTE #2: COMMAND 1
WRITE COMMAND 1
A
ACK. GENERATED BY MAX5816
W
W
BYTE
N N N N N
A
A
A
23
23
0
BYTE #2: COMMAND1 BYTE
BYTE #5: COMMANDn BYTE
BYTE #2: FIRST REG# = N
ACK. GENERATED BY MAX5816
WRITE REGISTER NO.
22
22
1
WRITE COMMAND1
N
21
21
(B[23:16])
(B[23:16])
N N N N
20 19 18 17
20 19 18 17
A
REPEATED
2
START
C Protocol)
0 0 0 1 1 A1 A0 R A D D D D D D D D
N
16
16
BYTE #3: I
READ ADDRESS
A
A
A
BYTE #X-1: REG(N)[15:8] DATA
ADDRESS
ADDITIONAL DATA BYTE PAIRS
BYTE #3: REG(N)[15:8] DATA
D D D D D D D
D D D D D D D
15 14 13 12 11 10 9
15 14 13 12 11 10 9
BYTE #3: DATA1 HIGH BYTE
BYTE #6: DATAn HIGH BYTE
ADDITIONAL COMMAND AND
DATA PAIRS (3 BYTE BLOCKS)
2
C SLAVE
(2 BYTE BLOCKS)
WRITE DATA
WRITE DATA
WRITE DATA1
(B[15:8])
(B[15:8])
A
ACK. GENERATED BY I
A
BYTE #4: DATA 1 HIGH
ACK. GENERATED BY I
D
D
BYTE (B[15:8])
READ DATA
8
8
A
A
A
A
BYTE #X: REG(N)[7:0] DATA
BYTE #4: REG(N)[7:0] DATA
D D D D D D D
D D D D D D D
BYTE #4: DATA1 LOW BYTE
7 6 5 4 3 2 1
7 6 5 4 3 2 1
BYTE #7: DATAn LOW BYTE
WRITE DATA
WRITE DATA
WRITE DATA1
2
C MASTER
(B[7:0])
(B[7:0])
A
2
C MASTER
D D D D D D D D ~A
BYTE #5: DATA 1 LOW
2
C Interface
BYTE (B[7:0])
READ DATA
D
D
MAX5816
0
0
A
A
REG N UPDATED
A
A
REG N UPDATED
COMMAND1
COMMANDn
EXECUTED
EXECUTED
STOP
STOP
STOP