MAX3311E Datasheet, PDF (1/8 Pages) Maxim Integrated Products – ±15kV ESD-Protected, 460kbps, 1μA, RS-232-Compatible Transceivers in μMAX

19-1910; Rev 0; 1/01
±15kV ESD-Protected, 460kbps, 1µA,
RS-232-Compatible Transceivers in µMAX
General Description
The MAX3311E/MAX3313E are low-power, 5V EIA/TIA-
232-compatible transceivers. All transmitter outputs
and receiver inputs are protected to ±15kV using the
Human Body Model, making these devices ideal for
applications where more robust transceivers are
required.
Both devices have one transmitter and one receiver.
The transmitters have a proprietary low-dropout trans-
mitter output stage enabling RS-232-compatible opera-
tion from a +5V supply with a single inverting charge
pump. These transceivers require only three 0.1µF
capacitors and will run at data rates up to 460kbps
while maintaining RS-232-compatible output levels.
The MAX3311E features a 1µA shutdown mode. In
shutdown the device turns off the charge pump, pulls
V- to ground, and the transmitter output is disabled.
The MAX3313E features an INVALID output that asserts
high when an active RS-232 cable signal is connected,
signaling 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
MAX3311E
10 GND
9 C1+
8 V-
7 TOUT
6 RIN
µMAX
Pin Configurations continued at end of data sheet.
Features
o ESD Protection for RS-232-Compatible I/O Pins
±15kV—Human Body Model
o 1µA Low-Power Shutdown (MAX3311E)
o INVALID Output (MAX3313E)
o Receiver Active in Shutdown (MAX3311E)
o Single Transceiver (1Tx/1Rx) in 10-Pin µMAX
Package
PART
MAX3311ECUB
MAX3311EEUB
MAX3313ECUB
MAX3313EEUB
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
1
9 _C1+
V_CC
V- ⁸
2 _C1-
4 TIN
MAX3311E
MAX3313E
TOUT 7
C2
0.1µF
5 ROUT
RIN ₆
5k
SHDN (MAX3311E) 3
INVALID (MAX3313E)
GND
10
CAPACITORS MAY BE POLARIZED OR NONPOLARIZED.
________________________________________________________________ Maxim Integrated Products 1
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