MAX6955ATL+T Maxim Integrated Products, MAX6955ATL+T Datasheet - Page 29
![IC DRVR DSPL LED 40-TQFN](/photos/6/65/66502/40-qfn_pkg_sml.jpg)
MAX6955ATL+T
Manufacturer Part Number
MAX6955ATL+T
Description
IC DRVR DSPL LED 40-TQFN
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX6955AAX.pdf
(43 pages)
Specifications of MAX6955ATL+T
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
40-TQFN Exposed Pad
Number Of Digits
16
Number Of Segments
128
Low Level Output Current
935 mA
High Level Output Current
55 mA
Operating Supply Voltage
2.7 V to 5.5 V
Maximum Supply Current
30 mA
Maximum Power Dissipation
2051.3 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
Details
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