Datasheet

MAX5813/MAX5814/MAX5815
Ultra-Small, Quad-Channel, 8-/10-/12-Bit Buffered
Output DACs with Internal Reference and I
2
C Interface
20Maxim Integrated
Figure 7. Interface Verification I
2
C Register Read Sequences
SCL
AW 20 19 18 17 A16 15 14 13 12 11 10 9 A8
SDA
0 0 1 A3 A2 A1 A0 2223
7 6
5
4 3 2 1 A0
R
~A
POINTER UPDATED
(QUALIFIES FOR COMBINED READ BACK)
COMMAND EXECUTED
(QUALIFIES FOR INTERFACE READ BACK)
SCL
SDA
COMMAND EXECUTED
(QUALIFIES FOR INTERFACE READ BACK)
POINTER UPDATED
(QUALIFIES FOR COMBINED READ BACK)
21
AW20191817A16 15 14 13 12 11 10 9A8001A3A2A1A02223 7654321A021
START STOP
WRITE ADDRESS
BYTE #1: I
2
C SLAVE ADDRESS*
WRITE COMMAND
BYTE #2: COMMAND BYTE
(B[23:16])
WRITE DATA
BYTE #3: DATA HIGH BYTE
(B[15:8])
WRITE DATA
BYTE #4: DATA LOW BYTE
(B[7:0])
START STOP
WRITE ADDRESS
BYTE #1: I
2
C SLAVE ADDRESS*
READ COMMAND
BYTE #2: COMMAND BYTE
(B[23:16])
READ DATA
BYTE #3: DATA HIGH BYTE
(B[15:8])
READ DATA
BYTE #4: DATA LOW BYTE
(B[7:0])
START
REPEATED
START
WRITE ADDRESS
BYTE #1: I
2
C SLAVE ADDRESS*
WRITE COMMAND
BYTE #2: COMMAND BYTE
(B[23:16])
WRITE DATA
BYTE #3: DATA HIGH BYTE
(B[15:8])
WRITE DATA
BYTE #4: DATA LOW BYTE
(B[7:0])
STOP
WRITE ADDRESS
BYTE #1: I
2
C SLAVE ADDRESS*
READ COMMAND
BYTE #2: COMMAND BYTE
(B[23:16])
READ DATA
BYTE #3: DATA HIGH BYTE
(B[15:8])
READ DATA
BYTE #4: DATA LOW BYTE
(B[7:0])
*I
2
C SLAVE ADDRESS FOR THE TSSOP PACKAGE IS USED
ACK. GENERATED BY MAX5813/MAX5814/MAX5815 ACK. GENERATED BY I
2
C MASTER
A20191817A16 15 14 13 12 11 10 9A8001A3A2A1A02223 7654321021
AR20191817A16 15 14 13 12 11 10 9A8001A3A2A1A02223 7654321~A021
AA