MAX6954AAX+ Maxim Integrated Products, MAX6954AAX+ Datasheet - Page 25
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MAX6954AAX+
Manufacturer Part Number
MAX6954AAX+
Description
IC DRIVER LED SEG 14/16 36-SSOP
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX6954AAX.pdf
(39 pages)
Specifications of MAX6954AAX+
Display Type
LED
Configuration
7, 14, 16 Segment
Interface
4-Wire Serial
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 16. Configuration Register Format
Table 18. Blink Rate Selection (B Data Bit D2) Format
Table 19. Global Blink Enable/Disable (E Data Bit D3) Format
Table 20. Digit Register Mapping with Blink Globally Enabled
Table 21. Global Blink Timing Synchronization (T Data Bit D4) Format
Table 22. Global Clear Digit Data (R Data Bit D5) Format
Configuration
Register
Digit data for both planes P0 and P1 are unaffected.
Digit data for both planes P0 and P1 are cleared on the rising edge of CS.
Blink function is disabled.
Blink function is enabled.
Blink timing counters are unaffected.
Blink timing counters are reset on the rising edge of CS.
Slow blinking. Segments blink on for 1s, off for 1s with f
Fast blinking. Segments blink on for 0.5s, off for 0.5s with f
MODE
SEGMENT’S BIT SETTING
4-Wire Interfaced, 2.7V to 5.5V LED Display
IN PLANE P1
D7
P
MODE
______________________________________________________________________________________
0
0
1
1
D6
I
Driver with I/O Expander and Key Scan
D5
R
REGISTER DATA
MODE
MODE
D4
MODE
T
D3
E
D2
B
D7
SEGMENT’S BIT SETTING
P
P
D1
X
OSC
IN PLANE P0
D0
OSC
S
= 4MHz.
D6
I
I
0
1
0
1
= 4MHz.
Table 17. Shutdown Control (S Data Bit DO)
Format
Shutdown
Normal
Operation
D5
D7
R
R
P
P
MODE
D7
D6
P
P
REGISTER DATA
I
I
D7
D4
P
P
T
T
Segment off.
Segment on only during the 1st half of each
blink period.
Segment on only during the 2nd half of each
blink period.
Segment on.
D6
D7
P
P
I
I
D5
R
R
D6
I
I
REGISTER DATA
D6
D5
I
I
D3
0
1
0
1
D5
R
R
D4
REGISTER DATA
0
1
REGISTER DATA
D5
R
R
REGISTER DATA
D4
T
T
D4
T
T
BEHAVIOR
SEGMENT
D3
D2
D4
E
E
B
B
T
T
D3
E
E
D3
E
E
D3
E
E
D2
B
B
D2
D2
B
B
D1
0
1
X
X
D2
B
B
D1
X
X
D1
D1
X
X
X
X
D1
X
X
D0
S
S
D0
D0
D0
S
S
D0
S
S
S
S
0
1
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