MAX6954AAX+ Maxim Integrated Products, MAX6954AAX+ Datasheet - Page 16

• Manufacturer Part Number: MAX6954AAX+
• Description: IC DRIVER LED SEG 14/16 36-SSOP
• Manufacturer: Maxim Integrated Products

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

4-Wire Interfaced, 2.7V to 5.5V LED Display
Driver with I/O Expander and Key Scan
Figure 6. Multiplex Timing Diagram (OSC = 4MHz)
16
______________________________________________________________________________________
DIGIT 0 CATHODE
DRIVER INTENSITY
SETTINGS
ANODE (LIT)
ANODE (UNLIT)
(MAX ON)
1/16TH
(MIN ON)
2/16TH
3/16TH
4/16TH
5/16TH
6/16TH
7/16TH
8/16TH
9/16TH
10/16TH
11/16TH
12/16TH
13/16TH
14/16TH
15/16TH
15/16TH
HIGH-Z
HIGH-Z
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
CURRENT SOURCE ENABLED
DIGIT 0
200μs
HIGH-Z
HIGH-Z
DIGIT 1
HIGH-Z
HIGH-Z
DIGIT 2
ONE COMPLETE 1.6ms MULTIPLEX CYCLE AROUND 8 DIGITS
HIGH-Z
DIGIT 0's 200μs MULTIPLEX TIMESLOT
HIGH-Z
DIGIT 3
HIGH-Z
HIGH-Z
MINIMUM 12.5μs INTERDIGIT BLANKING INTERVAL
DIGIT 4
HIGH-Z
HIGH-Z
HIGH-Z
DIGIT 5
HIGH-Z
HIGH-Z
DIGIT 6
HIGH-Z
HIGH-Z
HIGH-Z
HIGH-Z
DIGIT 7
START OF
NEXT CYCLE