MAX3311 Datasheet, PDF (1/7 Pages) Maxim Integrated Products – 460kbps, 1μA Supply Current, RS-232-Compatible Transceivers in μMAX

19-1901; Rev 0; 2/01
460kbps, 1µA Supply Current,
RS-232-Compatible Transceivers in µMAX
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 0.1µF capacitors and will run at data
rates up to 460kbps while maintaining RS-232-compati-
ble output levels.
The MAX3311 features a 1µA 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.
________________________Applications
Digital Cameras
PDAs
GPS
POS
Telecommunications
Handy Terminals
Set-Top Boxes
Pin Configurations
TOP VIEW
V_CC 1
C1- 2
SHDN 3
TIN 4
ROUT 5
MAX3311
µMAX
10 GND
9 C1+
8 V-
7 TOUT
6 RIN
Pin Configurations continued at end of data sheet.
Features
o 1µA Low-Power Shutdown (MAX3311)
o INVALID Output (MAX3313)
o Receiver Active in Shutdown (MAX3311)
o Single Transceiver (1Tx/1Rx) in 10-Pin µMAX
o RS-232-Compatible Operation
PART
MAX3311CUB
MAX3311EUB
MAX3313CUB
MAX3313EUB
Ordering Information
TEMP. RANGE
0°C to +70°C
-40°C to +85°C
0°C to +70°C
-40°C to +85°C
PIN-PACKAGE
10 µMAX
10 µMAX
10 µMAX
10 µMAX
Typical Operating Circuit
+5V
C_BYPASS
0.1µF
C1
0.1µF
9 _C1+
2 _C1-
4 TIN
1
V_CC
V- ⁸
MAX3311
MAX3313
TOUT 7
C2
0.1µF
5 ROUT
RIN 6
5kΩ
SHDN (MAX3311) 3
INVALID (MAX3313)
GND
10
CAPACITORS MAY BE POLARIZED OR NONPOLARIZED.
________________________________________________________________ Maxim Integrated Products 1
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