Datasheet

14 Maxim Integrated
Quad Serial UART with 128-Word FIFOs
MAX14830
Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
TRANSMITTER SYNCHRONIZATION
MAX14830 toc03
200µs/div
TX0
2V/div
138.46kbaud
TX1
2V/div
19.23kbaud
TX2
2V/div
9.615kbaud
TX3
2V/div
6.41kbaud
GPIO_ OUTPUT LOW VOLTAGE
vs. SINK CURRENT (PUSH-PULL)
MAX14830 toc02
V
OL
(V)
I
SINK
(mA)
321
20
40
60
80
100
120
140
160
0
04
V
EXT
= 3.3V
V
EXT
= 2.5V
V
EXT
= 1.8V
GPIO_ OUTPUT HIGH VOLTAGE
vs. SOURCE CURRENT (PUSH-PULL)
MAX14830 toc01
V
OH
(V)
I
SOURCE
(mA)
321
10
20
30
40
50
60
70
0
04
V
EXT
= 3.3V
V
EXT
= 2.5V
V
EXT
= 1.8V