MAX6955AAX+ Maxim Integrated Products, MAX6955AAX+ Datasheet - Page 29

• Manufacturer Part Number: MAX6955AAX+
• Description: IC DRIVER LED SEG 14/16 36-SSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX6955AAX+

• Display Type: LED
• Configuration: 7, 14, 16 Segment
• Interface: I²C
• Current - Supply: 22mA
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 36-SSOP
• Number Of Digits: 16, 8, 8
• Number Of Segments: 7, 14, 16
• Low Level Output Current: 935000 uA
• High Level Output Current: 55000 uA
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Supply Current: 36 mA
• Maximum Power Dissipation: 941 mW
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Digits Or Characters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Table 30. Odd Individual Segment Intensity Format
Table 31. GPIO Data Register
Table 32. Port Scanning Function Allocation
Write GPIO Data
Read GPIO Data
15/16 (max on)
1/16 (min on)
SCANNED
17 to 24
25 to 36
9 to 16
KEYS
CYCLE
None
1 to 8
MODE
DUTY
10/16
11/16
12/16
13/16
14/16
15/16
2/16
3/16
4/16
5/16
6/16
7/16
8/16
9/16
2-Wire Interfaced, 2.7V to 5.5V LED Display
______________________________________________________________________________________
C U R R EN T ( m A )
CODE (HEX)
AVAILABLE
Driver with I/O Expander and Key Scan
ADDRESS
SEGMENT
TYPICAL
PORTS
5 pins
3 pins
2 pins
None
1 pin
0x05
0x05
12.5
17.5
22.5
27.5
32.5
37.5
37.5
2.5
7.5
10
15
20
25
30
35
5
D7
X
0
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
ADDRESS
Key_A
Key_A
Key_A
Key_A
CODE
GPIO
(HEX)
P0
D6
X
0
D5
X
0
D7
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Key_B
Key_B
Key_B
GPIO
GPIO
P1
P4 or IRQ status
D6
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
D4
P4
REGISTER DATA
D5
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
REGISTER DATA
Key_C
Key_C
GPIO
GPIO
GPIO
P2
D4
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
D3
P3
P3
D3
See Table 29
Key_D
D2
GPIO
GPIO
GPIO
GPIO
P3
D2
P2
P2
D1
D1
P1
P1
D0
GPIO
IRQ
IRQ
IRQ
IRQ
P4
CODE
0xCX
0xDX
0xAX
0xBX
0xEX
0x0X
0x1X
0x2X
0x3X
0x4X
0x5X
0x6X
0x7X
0x8X
0x9X
0xFX
HEX
D0
P0
P0
29