MAX6957 MAXIM [Maxim Integrated Products], MAX6957 Datasheet - Page 8

• Manufacturer Part Number: MAX6957
• Description: 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port LED Display Driver and I/O Expander
• Manufacturer: MAXIM [Maxim Integrated Products]

4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and
28-Port LED Display Driver and I/O Expander
8
Figure 2. Two MAX6957s Controlling Seven 7-Segment Displays
Figure 3. 4-Wire Interface Timing
VIRTUAL SEGMENTS
VIRTUAL SEGMENTS
DOUT
SCLK
P0
P0
_______________________________________________________________________________________
DIN
CS
P1
P1
P2
P2
P3
P3
t
CSH
7-SEGMENT DIGIT 1
P4
P4
P5
P5
t
DV
P6
P6
t
CSS
t
DS
P7
P7
t
7-SEGMENT DIGIT 5
DH
P8
P8
P9 P10 P11 P12 P13 P14 P15 P16 P17 P18 P19 P20 P21 P22 P23 P24 P25 P26 P27 P28 P29 P30 P31
P9 P10 P11 P12 P13 P14 P15 P16 P17 P18 P19 P20 P21 P22 P23 P24 P25 P26 P27 P28 P29 P30 P31
t
CL
7-SEGMENT DIGIT 2
t
CH
7-SEGMENT DIGIT 6
7-SEGMENT DIGIT 3
7-SEGMENT DIGIT 7
t
DO
7-SEGMENT DIGIT 4
t
CSH
V+
V+