MAX563CWN-T Maxim Integrated, MAX563CWN-T Datasheet - Page 6

• Manufacturer Part Number: MAX563CWN-T
• Description: RS-232 Interface IC
• Manufacturer: Maxim Integrated
• Series: MAX563r

Specifications of MAX563CWN-T

• Data Rate: 116 Kbps
• Operating Supply Voltage: 3.3 V
• Supply Current: 8 mA
• Operating Temperature Range: 0 C to + 70 C
• Mounting Style: SMD/SMT
• Function: Transceiver
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Number Of Drivers: 2
• Number Of I/os: 8
• Number Of Receivers: 2
• Propagation Delay Time Ns: 1 us, 3.5 us
• Shutdown: Yes

+3.3V-Powered, EIA/TIA-562 Dual Transceiver
with Receivers Active in Shutdown
Normally, 0.1µF capacitors can be used for all loca-
tions. To reduce output ripple, increase the values of
the V+ and V- capacitors. If your capacitors have a
very wide tolerance, consider using a nominal value a
little larger than 0.1µF to ensure that the actual capaci-
tance does not fall below about 80nF. For circuits
designed to operate over a wide range of tempera-
tures, consider using slightly larger capacitors to com-
pensate for any loss of capacitance at temperature
extremes. No advantage is gained by using values
larger than 10µF.
Use a capacitor with the same value as the charge-
pump capacitors.
Figure 4. Receiver Output Enable and Disable Timing
6
__________Applications Information
_______________________________________________________________________________________
INPUT
EN
Charge-Pump Capacitor Selection
C
RECEIVER
INPUT
RECEIVER
OUTPUTS
OUTPUT
L
V
EN
= 150pF
CC
0V
Power-Supply Decoupling
0V
V
CC
+0.4V
V
CC
V
- 0.6V
t
V
OL
ER
OH
+ 0.1V
- 0.1V
R
t
DR
L
= 1k
0.5V
CC
Figure 5. Transmitter Output Disable Timing
A. TIMING DIAGRAM
B. TEST CIRCUIT
1 OR 0
SHDN
V+
V-
+3V
T
X
3k
t
DT
0V
+3.7V
-3.7V
50pF
0V