MAX6955ATL+T Maxim Integrated Products, MAX6955ATL+T Datasheet - Page 13
![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 7. Register Address Map
* Do NOT write to register.
No-Op
Decode Mode
Global Intensity
Scan Limit
Configuration
GPIO Data
Port Configuration
Display Test
Write KEY_A Mask
Read KEY_A Debounce
Write KEY_B Mask
Read KEY_B Debounce
Write KEY_C Mask
Read KEY_C Debounce
Write KEY_D Mask
Read KEY_D Debounce
Write Digit Type
Read KEY_A Pressed
Read KEY_B Pressed*
Read KEY_C Pressed*
Read KEY_D Pressed*
Intensity 10
Intensity 32
Intensity 54
Intensity 76
Intensity 10a (7 Segment Only)
Intensity 32a (7 Segment Only)
Intensity 54a (7 Segment Only)
Intensity 76a (7 Segment Only)
Digit 0 Plane P0
Digit 1 Plane P0
Digit 2 Plane P0
Digit 3 Plane P0
Digit 4 Plane P0
Digit 5 Plane P0
Digit 6 Plane P0
Digit 7 Plane P0
Digit 0a Plane P0 (7 Segment Only)
Digit 1a Plane P0 (7 Segment Only)
Digit 2a Plane P0 (7 Segment Only)
Digit 3a Plane P0 (7 Segment Only)
2-Wire Interfaced, 2.7V to 5.5V LED Display
REGISTER
______________________________________________________________________________________
Driver with I/O Expander and Key Scan
D15
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
D14
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
ADDRESS (COMMAND BYTE)
D13
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
D12
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
D11
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
D10
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
D9
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D8
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
HEX CODE
0x0C
0x0D
0x0A
0x0B
0x0E
0x2A
0x2B
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x0F
0x10
0x11
0x12
0x13
0x14
0x15
0x16
0x17
0x20
0x21
0x22
0x23
0x24
0x25
0x26
0x27
0x28
0x29
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