MAX7314ATG+ Maxim Integrated Products, MAX7314ATG+ Datasheet - Page 18

• Manufacturer Part Number: MAX7314ATG+
• Description: IC I/O EXPANDER I2C 16B 24TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX7314ATG+

• Interface: I²C
• Number Of I /o: 18
• Interrupt Output: Yes
• Frequency - Clock: 400kHz
• Voltage - Supply: 2 V ~ 3.6 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 24-TQFN Exposed Pad
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

18-Port GPIO with LED Intensity Control,
Interrupt, and Hot-Insertion Protection
Figure 16. Individual (or Global) Set to 1/16
Figure 17. Individual (or Global) Set to 15/16
Figure 18. Individual (or Global) Set to 16/16
Table 11. PWM Intensity Settings (Blink Disabled)
18
INTENSITY
GLOBAL)
SETTING
OUTPUT
(OR
0xA
0xB
0xC
0xD
0x0
0x1
0x2
0x3
0x4
0x5
0x6
0x7
0x8
0x9
0xE
0xF
______________________________________________________________________________________
OUTPUT BLINK PHASE 0
1
LOW TIME
1
1
Static low
PWM DUTY CYCLE
10/16
11/16
12/16
13/16
14/16
15/16
2
REGISTER BIT = 0
1/16
2/16
3/16
4/16
5/16
6/16
7/16
8/16
9/16
2
2
3
3
3
4
4
4
MASTER INTENSITY TIMESLOT
MASTER INTENSITY TIMESLOT
5
5
5
HIGH TIME
Static low
6
6
6
15/16
14/16
13/16
12/16
11/16
10/16
9/16
8/16
7/16
6/16
5/16
4/16
3/16
2/16
1/16
7
7
7
8
8
8
9 10 11 12 13 14 15 16
9 10 11 12 13 14 15 16
9 10 11 12 13 14 15 16
OUTPUT BLINK PHASE 0
LED BEHAVIOR WHEN
Highest PWM intensity
(LED on continuously)
Lowest PWM intensity
Full intensity, no PWM
MASTER INTENSITY TIMESLOT CONTROL IS IGNORED
REGISTER BIT = 0
(LED IS ON WHEN
OUTPUT IS LOW)
1
1
1
2
2
2
3
3
3
OUTPUT BLINK PHASE 0
LOW TIME
impedance
Static high
4
4
4
PWM DUTY CYCLE
15/16
14/16
13/16
12/16
11/16
10/16
9/16
8/16
7/16
6/16
5/16
4/16
3/16
2/16
1/16
5
REGISTER = 1
5
5
NEXT MASTER INTENSITY TIMESLOT
NEXT MASTER INTENSITY TIMESLOT
6
6
6
7
7
7
HIGH TIME
impedance
8
Static high
8
8
10/16
11/16
12/16
13/16
14/16
15/16
1/16
2/16
3/16
4/16
5/16
6/16
7/16
8/16
9/16
9 10 11 12 13 14 15 16
9 10 11 12 13 14 15 16
9 10 11 12 13 14 15 16
OUTPUT BLINK PHASE 0
LED BEHAVIOR WHEN
Highest PWM intensity
Lowest PWM intensity
LED off continuously
REGISTER BIT = 1
(LED IS ON WHEN
OUTPUT IS LOW)