MAX6953 Maxim Integrated Products, MAX6953 Datasheet - Page 16

• Manufacturer Part Number: MAX6953
• Description: 2-Wire Interfaced/ 2.7V to 5.5V/ 4-Digit 5 x 7 Matrix LED Display Driver
• Manufacturer: Maxim Integrated Products

2-Wire Interfaced, 2.7V to 5.5V, 4-Digit 5
Matrix LED Display Driver
Figure 10. Multiplex Timing Diagram (OSC = 4MHz)
16
DIGITS 0 AND 1
ROW OUTPUTS
DIGITS 2 AND 3
ROW OUTPUTS
PINS O7–O13
PINS O0–06
______________________________________________________________________________________
DRIVER OUTPUTS
COLUMN DRIVER
DIGIT 1 COLUMN
COLUMN DRIVER
PINS O19-O23
PINS O14-O18
PINS O19-O23
14/16TH
15/16TH
1/16TH
(MIN ON)
2/16TH
5/16TH
6/16TH
7/16TH
8/16TH
10/16TH
11/16TH
13/16TH
16/16TH
(MAX ON)
3/16TH
4/16TH
9/16TH
12/16TH
HIGH-Z
HIGH-Z
CURRENT SOURCE
CURRENT SOURCE
CURRENT SOURCE
CURRENT SOURCE
CURRENT SOURCE
CURRENT SOURCE
CURRENT SOURCE
CURRENT SOURCE
CURRENT SOURCE
CURRENT SOURCE
CURRENT SOURCE
CURRENT SOURCE
CURRENT SOURCE
DIGIT 0
DIGIT 1
CURRENT SOURCE
CURRENT SOURCE
CURRENT SOURCE
100µs
ROW 1
ROW 1
LOW
HIGH-Z
DIGIT 0
DIGIT 1
ROW 2
ROW 2
HIGH-Z
HIGH-Z
DIGIT 0
DIGIT 1
ROW 3
ROW 3
HIGH-Z
DIGIT 0
DIGIT 1
ROW 4
ROW 4
HIGH-Z
HIGH-Z
DIGIT 0
DIGIT 1
ONE COMPLETE 1.4ms MULTIPLEX CYCLE AROUND 14 ROWS
ROW 5
ROW 5
DIGIT 1 ROW 1's 100µs MULTIPLEX TIMESLOT
HIGH-Z
DIGIT 0
DIGIT 1
ROW 6
ROW 6
HIGH-Z
DIGIT 0
DIGIT 1
HIGH-Z
ROW 7
ROW 7
MINIMUM 6.25µs INTERDIGIT BLANKING INTERVAL
HIGH-Z
DIGIT 2
DIGIT 3
ROW 1
ROW 1
HIGH-Z
DIGIT 2
DIGIT 3
ROW 2
ROW 2
HIGH-Z
DIGIT 2
DIGIT 3
ROW 3
ROW 3
HIGH-Z
HIGH-Z
DIGIT 2
DIGIT 3
ROW 4
ROW 4
HIGH-Z
DIGIT 2
DIGIT 3
ROW 5
ROW 5
HIGH-Z
HIGH-Z
HIGH-Z
DIGIT 2
DIGIT 3
ROW 6
ROW 6
DIGIT 3
DIGIT 2
ROW 7
ROW 7
✕
7
DIGIT 0
DIGIT 1
ROW 1
ROW 1
START OF
NEXT CYCLE