Table 15. global intensity register format – Rainbow Electronics MAX6959 User Manual
Page 13
MAX6958/MAX6959
2-Wire Interfaced, 3V to 5.5V, 4-Digit,
9-Segment LED Display Drivers with Keyscan
______________________________________________________________________________________
13
DUTY CYCLE
TYPICAL SEGMENT
CURRENT (mA)
ADDRESS
CODE (HEX)
D7
D6
D5
D4
D3
D2
D1
D0
HEX CODE
1/64 (min on)
0.36
0x02
X
X
0
0
0
0
0
0
0x00
2/64
0.72
0x02
X
X
0
0
0
0
0
1
0x01
3/64
1.08
0x02
X
X
0
0
0
0
1
0
0x02
4/64
1.44
0x02
X
X
0
0
0
0
1
1
0x03
5/64
1.80
0x02
X
X
0
0
0
1
0
0
0x04
6/64
2.16
0x02
X
X
0
0
0
1
0
1
0x05
—
—
0x02
X
X
—
—
—
—
—
—
—
60/64
21.56
0x02
X
X
1
1
1
0
1
1
0x3B
61/64
21.92
0x02
X
X
1
1
1
1
0
0
0x3C
62/64
22.28
0x02
X
X
1
1
1
1
0
1
0x3D
63/64
22.64
0x02
X
X
1
1
1
1
1
0
0x3E
63/64 (max on)
22.64
0x02
X
X
1
1
1
1
1
1
0x3F
Table 15. Global Intensity Register Format
1/64th
(MIN ON)
2/64th
3/64th
63/64th
61/64th
62/16th
63/64th
DIGIT 0 CATHODE
DRIVER INTENSITY
SETTINGS
HIGH-Z
HIGH-Z
HIGH-Z
HIGH-Z
HIGH-Z
HIGH-Z
HIGH-Z
LOW
LOW
LOW
LOW
LOW
LOW
LOW
MINIMUM 5
µs INTERDIGIT BLANKING INTERVAL
(MAX ON)
ANODE (LIT)
CURRENT SOURCE ENABLED
HIGH-Z
ANODE (UNLIT)
HIGH-Z
HIGH-Z
HIGH-Z
DIGIT 1
DIGIT 2
DIGIT 3
DIGIT 0
DIGIT 0
START OF
NEXT CYCLE
ONE COMPLETE 1.28ms MULTIPLEX CYCLE AROUND 4 DIGITS
DIGIT 0's 320
µs MULTIPLEX TIMESLOT
Figure 11. Multiplex Timing Diagram