S P I/Mic ro w ire -Co m p a t ib le
UART in QS OP -1 6
__________________________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s
(T = +25°C, unless otherwise noted.)
A
SHUTDOWN CURRENT
vs. TEMPERATURE
SUPPLY CURRENT vs.
EXTERNAL CLOCK FREQUENCY
SUPPLY CURRENT vs. TEMPERATURE
1000
10
700
600
1.8432MHz CRYSTAL
1.8432MHz CRYSTAL
TRANSMITTING AT
115.2 kbps
900
800
700
600
9
8
7
6
MAX310
500
V
CC
= 5V
400
300
200
100
0
V
CC
= 3.3V
500
400
300
5
4
3
V
= 5V
CC
V
CC
= 3.3V
V = 5V
CC
200
100
0
2
1
0
V
CC
= 3.3V
-40 -20
0
20
40
60
80 100
-40 -20
0
20
40
60
80 100
0
1
2
3
4
5
TEMPERATURE (°C)
TEMPERATURE (°C)
EXTERNAL CLOCK FREQUENCY (MHz)
TX, RTS, DOUT OUTPUT CURRENT
TX, RTS, DOUT OUTPUT CURRENT
vs. OUTPUT LOW VOLTAGE (V = 5V)
CC
SUPPLY CURRENT vs. BAUD RATE
vs. OUTPUT LOW VOLTAGE (V = 3.3V)
CC
90
80
70
60
50
400
350
70
60
1.8432 MHz
5V
CRYSTAL
TRANSMITTING
RTS
TX
RTS
TX
50
300
250
200
150
100
50
5V
STANDBY
40
30
20
10
0
DOUT
40
30
20
10
0
3V
DOUT
TRANSMITTING
3V
STANDBY
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
VOLTAGE (V)
100
1000
10k
100k
1M
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
VOLTAGE (V)
BAUD RATE (bps)
4
_______________________________________________________________________________________
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
