19-1901; Rev 0; 2/01
460kbps, 1碌A Supply Current,
RS-232-Compatible Transceivers in 碌MAX
General Description
The MAX3311/MAX3313 are low-power, +5V EIA/TIA-
232-compatible transceivers. Both devices have one
transmitter and one receiver. The transceivers have a
proprietary low-dropout transmitter output stage
enabling RS-232-compatible operation from a +5V sup-
ply with a single inverting charge pump. These devices
require only three 0.1碌F capacitors and will run at data
rates up to 460kbps while maintaining RS-232-compati-
ble output levels.
The MAX3311 features a 1碌A shutdown mode. In shut-
down the device turns off the charge pump, pulls V- to
ground, and the transmitter output is disabled. The
MAX3313 features an
INVALID
output that asserts high
when an active RS-232 cable signal is connected, sig-
naling to the host that a peripheral is connected to the
communication port.
o
INVALID
Output (MAX3313)
o
Receiver Active in Shutdown (MAX3311)
o
Single Transceiver (1Tx/1Rx) in 10-Pin 碌MAX
o
RS-232-Compatible Operation
Features
o
1碌A Low-Power Shutdown (MAX3311)
MAX3311/MAX3313
Ordering Information
________________________Applications
Digital Cameras
PDAs
GPS
POS
Telecommunications
Handy Terminals
Set-Top Boxes
+5V
C
BYPASS
0.1碌F
9
C1
0.1碌F
C1+
1
V
CC
V-
8
C2
0.1碌F
C1-
PART
MAX3311CUB
MAX3311EUB
MAX3313CUB
MAX3313EUB
TEMP. RANGE
0掳C to +70掳C
-40掳C to +85掳C
0掳C to +70掳C
-40掳C to +85掳C
PIN-PACKAGE
10 碌MAX
10 碌MAX
10 碌MAX
10 碌MAX
Typical Operating Circuit
Pin Configurations
2
TOP VIEW
V
CC
1
C1-
SHDN
TIN
ROUT
2
3
4
5
10
GND
9
C1+
MAX3311
MAX3313
TOUT 7
4 TIN
MAX3311
5 ROUT
RIN 6
5k鈩?/div>
8
7
6
V-
TOUT
RIN
SHDN (MAX3311) 3
INVALID (MAX3313)
GND
10
CAPACITORS MAY BE POLARIZED OR NONPOLARIZED.
碌MAX
Pin Configurations continued at end of data sheet.
________________________________________________________________
Maxim Integrated Products
1
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim鈥檚 website at www.maxim-ic.com.
1
2
3
4
5
6
7
