MAX220C View Datasheet(PDF) - Maxim Integrated
Part Name
Description
MFG CO.
'MAX220C' PDF : 36 Pages View PDF
+5V-Powered, Multichannel RS-232
Drivers/Receivers
TOP VIEW
1µF
1µF
6 5 4 3 2 1 44 43 42 41 40
RA3IN 7
RA2IN 8
RA1IN 9
RA1OUT 10
RA2OUT 11
RA3OUT 12
RA4OUT 13
RA5OUT 14
TA1IN 15
TA2IN 16
TA3IN 17
MAX244
39 RB4IN
38 RB3IN
37 RB2IN
36 RB1IN
35 RB1OUT
34 RB2OUT
33 RB3OUT
32 RB4OUT
31 RB5OUT
30 TB1IN
29 TB2IN
18 19 20 21 22 23 24 25 26 27 28
PLCC
MAX249 FUNCTIONAL DESCRIPTION
10 RECEIVERS
5 A-SIDE RECEIVER
5 B-SIDE RECEIVER
8 TRANSMITTERS
4 A-SIDE TRANSMITTERS
4 B-SIDE TRANSMITTERS
NO CONTROL PINS
21
C1+
23 C1-
24 C2+
25 C2-
2 TA1OUT
15 TA1IN
2 TA2OUT
16 TA2IN
3 TA3OUT
17 TA3IN
4 TA4OUT
18 TA4IN
9 RA1IN
+5V
1µF
1µF
20
VCC
+5V TO +10V VOLTAGE DOUBLER
+10V TO -10V VOLTAGE INVERTER
22
V+
26
V- 1µF
+5V
+5V
400kΩ
TB1OUT 44
TB1IN 30
+5V
+5V
400kΩ
TB2OUT 43
TB2IN 29
+5V
+5V
400kΩ
+5V
+5V
400kΩ
TB3OUT 42
TB3IN 28
TB4OUT 41
TB4IN 27
RB1IN 36
5kΩ
10 RA1OUT
8 RA2IN
5kΩ
RB1OUT 35
RB2IN 37
5kΩ
11 RA2OUT
7 RA3IN
5kΩ
RB2OUT 34
RB3IN 38
5kΩ
12 RA3OUT
6 RA4IN
5kΩ
RB3OUT 33
RB4IN 39
5kΩ
13 RA4OUT
5 RA5IN
5kΩ
RB4OUT 32
RB5IN 40
5kΩ
14 RA5OUT
GND
19
5kΩ
RB5OUT 31
Figure 20. MAX244 Pin Configuration and Typical Operating Circuit
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