MAX3311 Maxim, MAX3311 Datasheet - Page 4

• Manufacturer Part Number: MAX3311
• Description: 460kbps / 1A Supply Current / RS-232-Compatible Transceivers in MAX
• Manufacturer: Maxim

460kbps, 1µA Supply Current,
RS-232-Compatible Transceivers in µMAX
(V
4
CC
MAX3311
_______________________________________________________________________________________
14
12
10
= +5V, 0.1µF capacitors, transmitter loaded with 3kΩ and C
8
6
4
2
0
10
0
—
1
2
3
4
5
6
7
8
9
500
vs. LOAD CAPACITANCE
250 kbps DATA RATE
PIN
LOAD CAPACITANCE (pF)
1000
-SLEW
SLEW RATE
MAX3313
1500
10
—
+SLEW
1
2
3
4
5
6
7
8
9
2000
2500
INVALID
3000
NAME
SHDN
ROUT
TOUT
GND
C1+
V
RIN
C1-
TIN
V-
CC
-1
-2
-3
-4
-5
6
5
4
3
2
1
0
0
+5V External Power Supply. Decouple with a 0.1µF capacitor to ground.
Negative Terminal of the Voltage Inverter Charge-Pump Capacitor
Shutdown Active-Low (0 = off, 1 = on)
Valid Signal Detector Output, Active-Low. A logic high indicates that a valid
RS-232 level is present on the receiver input.
TTL/CMOS Transmitter Input
TTL/CMOS Receiver Output
RS-232 Receiver Input
RS-232-Compatible Transmitter Output
-4.3V generated by the charge pump. Connect a 0.1µF capacitor to ground.
Positive Terminal of the Voltage Inverter Charge-Pump Capacitor
Ground
TRANSMITTER OUTPUT VOLTAGE
460kbps/250kbps/120kbps
500
460kbps/250kbps/120kbps
vs. LOAD CAPACITANCE
LOAD CAPACITANCE (pF)
1000
L
, T
1500
A
= +25°C, unless otherwise noted.)
Typical Operating Characteristics
2000
2500
3000
FUNCTION
14
12
10
8
6
4
2
0
0
20kbps
500
vs. LOAD CAPACITANCE
Pin Description
LOAD CAPACITANCE (pF)
SUPPLY CURRENT
1000
120kbps
1500
250kbps
2000
460kbps
2500
3000