參數(shù)資料
型號(hào)： MAX232E
廠商： Maxim Integrated Products, Inc.
英文描述： ±5kV ESD-Protected, %2B5V RS-232 Transceivers
中文描述： ±15kV ESD保護(hù)、%2B5V RS-232收發(fā)器
文件頁(yè)數(shù)： 8/24頁(yè)
文件大?。?/td> 265K
代理商： MAX232E
M
±15kV ESD-Protected, +5V RS-232 Transceivers
8
_______________________________________________________________________________________
V+
GND
MAX206E
MAX211E
MAX213E
MAX241E
400k
0.1μF
*
V
CC
0.1μF
*
R1 TOR5
T1 TOT5
0.1μF
*
C1+
C1-
C2+
C2-
V
CC
+5.5V
T_OUT
R_OUT
5k
I
SHDN
0V OR +5.5V
DRIVE
0.1μF
*
0.1μF
*
3k
+5.5V
R_IN
T_IN
CAPACITORS MAY BE
POLARIZED OR UNPOLARIZED
( ) ARE FOR MAX213E
*
μF FOR MAX241E
EN (EN)
SHDN (SHDN)
+5.5V (0V)
V-
+5.5V
Figure 1. Shutdown-Current Test Circuit (MAX206E,
MAX211E/MAX213E/MAX241E)
+3.5V
EN
INPUT
OUTPUT ENABLE TIME
+2.5V
RECEIVER
OUTPUT
C
L
= 150pF
RECEIVER
OUTPUTS
OUTPUT DISABLE TIME
V
OH
- 0.1V
V
OH
V
OL
V
OL
+ 0.1V
R
L
= 1k
NOTE:
POLARITY OF EN
IS REVERSED
FOR THE
MAX213E
+0.8V
0V
+3V
+3V
EN
INPUT
0V
Figure 2. Receiver Output Enable and Disable Timing
(MAX205E/MAX206E/MAX211E/MAX213E/MAX241E)
17
NAME
T_OUT
R_IN
FUNCTION
V-
EN
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 pull-ups to V
CC.
Ground
+4.5V to +5.5V Supply Voltage
Terminals for positive charge-pump capacitor
+2V
CC
voltage generated by the charge pump
Terminals for negative charge-pump capacitor
-2V
CC
voltage generated by the charge pump
Receiver Enable—active low (MAX211E, MAX241E)
24
R_OUT
PIN
1, 2, 3, 28
4, 9, 18, 23, 27
EN
T_IN
GND
V
CC
C1+, C1-
V+
C2+, C2-
Receiver Enable—active high (MAX213E)
25
SHDN
5, 8, 19, 22, 26
6, 7, 20, 21
10
11
12, 14
13
15, 16
Shutdown Control—active low (MAX213E)
SHDN
Shutdown Control—active high (MAX211E, MAX241E)
________________________________________________Pin Desc riptions (c ontinued)
MAX211E/MAX213E/MAX241E
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