MAX241E Maxim Integrated Products, MAX241E Datasheet - Page 8

• Manufacturer Part Number: MAX241E
• Description: +5V RS-232 Transceivers
• Manufacturer: Maxim Integrated Products

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±15kV ESD-Protected, +5V RS-232 Transceivers
________________________________________________Pin Descriptions (continued)
Figure 1. Shutdown-Current Test Circuit (MAX206E,
MAX211E/MAX213E/MAX241E)
8
MAX211E/MAX213E/MAX241E
4, 9, 18, 23, 27
5, 8, 19, 22, 26
( ) ARE FOR MAX213E
*
_______________________________________________________________________________________
0V OR +5.5V
6, 7, 20, 21
1µF FOR MAX241E
1, 2, 3, 28
+5.5V
DRIVE
12, 14
15, 16
0.1µF
0.1µF
0.1µF
PIN
+5.5V (0V)
10
11
13
17
24
25
+5.5V
*
*
*
I
SHDN
C1+
C1-
C2+
C2-
T_IN
R_OUT
EN (EN)
SHDN (SHDN)
C1+, C1-
C2+, C2-
R_OUT
V
T_OUT
NAME
SHDN
SHDN
CC
GND
R1 TO R5
R_IN
T_IN
V
V+
EN
EN
V-
400kΩ
CC
MAX206E
MAX211E
MAX213E
MAX241E
GND
V
CC
T1 TO T5
RS-232 Driver Outputs
RS-232 Receiver Inputs
TTL/CMOS Receiver Outputs. For the MAX213E, receivers R4 and R5 are active in shutdown
mode when EN = 1. For the MAX211E and MAX241E, all receivers are inactive in shutdown.
TTL/CMOS Driver Inputs. Only the MAX211E, MAX213E, and MAX241E have internal pullups to V
Ground
+4.5V to +5.5V Supply Voltage
Terminals for Positive Charge-Pump Capacitor
+2V
Terminals for Negative Charge-Pump Capacitor
-2V
Receiver Enable—Active Low (MAX211E, MAX241E)
Receiver Enable—Active High (MAX213E)
Shutdown Control—Active High (MAX211E, MAX241E)
Shutdown Control—Active Low (MAX213E)
T_OUT
POLARIZED OR UNPOLARIZED
R_IN
5kΩ
V+
CC
V-
CC
0.1µF
0.1µF
CAPACITORS MAY BE
Voltage Generated by the Charge Pump
Voltage Generated by the Charge Pump
+5.5V
*
*
3kΩ
Figure 2. Receiver Output Enable and Disable Timing
(MAX205E/MAX206E/MAX211E/MAX213E/MAX241E)
NOTE:
POLARITY OF EN
IS REVERSED
FOR THE
MAX213E
FUNCTION
INPUT
EN
C
RECEIVER
INPUT
RECEIVER
OUTPUTS
OUTPUT
L
+3V
EN
= 150pF
0V
V
V
0V
OH
OL
+3.5V
+0.8V
+3V
V
OL
OUTPUT ENABLE TIME
V
OH
+ 0.1V
- 0.1V
R
OUTPUT DISABLE TIME
L
= 1kΩ
+2.5V
CC.