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Description
MAX3221 View Datasheet(PDF) - Maxim Integrated
Part Name
Description
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MAX3221
1µA Supply-Current, True +3V to +5.5V RS-232 Transceivers with AutoShutdown
Maxim Integrated
MAX3221 Datasheet PDF : 16 Pages
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1µA Supply-Current, True +3V to +5.5V
RS-232 Transceivers with AutoShutdown
+3.3V
C1
0.1
µ
F
C2
0.1
µ
F
0.1
µ
F
28
C1+
24
C1-
1
C2+
2
C2-
14
T1IN
LOGIC
INPUTS
13
T2IN
12
T3IN
26
V
CC
MAX3243
27
V+
3
V-
T1OUT 9
T2OUT 10
T3OUT 11
C3
0.1
µ
F
C4
0.1
µ
F
COMPUTER SERIAL PORT
+V
+V
-V
20
R2OUTB
GND
19
R1OUT
LOGIC
OUTPUTS
18
R2OUT
17
R3OUT
16
R4OUT
R1IN 4
Tx
5k
Ω
R2IN 5
5k
Ω
R3IN 6
5k
Ω
R4IN 7
RS-232
INPUTS
15
R5OUT
5k
Ω
R5IN 8
V
CC
TO POWER
MANAGEMENT
UNIT
23
FORCEON
22
FORCEOFF
21
INVALID
5k
Ω
GND
25
SERIAL
MOUSE
Figure 7b. Mouse Driver Test Circuit
10 ______________________________________________________________________________________
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