Datasheet

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
8 ___________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 [phone]
© 1993 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.
MAX562
Complete 230kbps, 2.7V to 5.25V
Serial Interface for Notebook Computers
and X7R ceramic capacitors are recommended for
operation over the full temperature range.
Larger capacitors may be used for C2 and C4 (see
Typical Operating Circuit ) to reduce ripple on the trans-
mitter output voltages.
Power-Supply Decoupling
In applications that are sensitive to power-supply noise,
decouple V
CC
to ground with a capacitor similar in
value to that of the C1A and C1B charge-pump capaci-
tors. Connect the bypass capacitor as close as possi-
ble to the V
CC
and GND pins.
V+ and V- as Power Supplies
A small amount of power can be drawn from V+ and V-.
Excessive loads will cause V+ and V- to fall out of
regulation. When V+ or V- are loaded, check for good
regulation over the intended operating temperature
range.
___________________Chip Topography
321

28 27 26 25
4
6
7
8
9
10
5
11 12 13 14 15 16 17 18
24
23
22
21
20
19
C1B-
C1A-
R1
OUT
R2
OUT
R3
OUT
R4
OUT
R5
OUT
C1B+
C1A+
V
CC
V+
GND
V-
C2+
C2-
R1
IN
R2
IN
R3
IN
R4
IN
R5
IN
T1
IN
T2
IN
T3
IN
EN
SHDN
T3
OUT
T2
OUT
T1
OUT
0.164"
(4.166mm)
0.135"
(3.429mm)
Table 2. Summary of EIA/TIA-232E/V.28 and EIA/TIA-562 Specifications
PARAMETER CONDITION
EIA/TIA-232E/V.28
SPECIFICATION
EIA/TIA-562
SPECIFICATION
Driver Output Voltage
0 Level
3kΩ to 7kΩ load
5.0V to 15.0V 3.7V to 13.2V
1 Level -5.0V to -15.0V -3.7V to -13.2V
Maximum Output Level No load ±25V ±13.2V
Signal Rate (3kΩ ≤ R
L
≤ 7kΩ)
C
L
= 2500pF Up to 20kbps Up to 20kbps
C
L
= 1000pF Not defined Up to 64kbps
Substrate connected to V+
Transistor count: 1892