MAX236C-D View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX236C-D Datasheet PDF : 36 Pages
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+5V-Powered, Multichannel RS-232
Drivers/Receivers
TOP VIEW
1µF
6 5 4 3 2 1 44 43 42 41 40
1µF
RA2IN 7
RA1IN 8
ENRA 9
RA1OUT 10
RA2OUT 11
RA3OUT 12
RA4OUT 13
TA1IN 14
TA2IN 15
TA3IN 16
TA4IN 17
MAX248
39 RB3IN
38 RB2IN
37 RB1IN
36 ENRB
35 RB1OUT
34 RB2OUT
33 RB3OUT
32 RB4OUT
31 TB1IN
30 TB2IN
29 TB3IN
18 19 20 21 22 23 24 25 26 27 28
PLCC
MAX248 FUNCTIONAL DESCRIPTION
8 RECEIVERS
4 A-SIDE RECEIVERS
4 B-SIDE RECEIVERS
8 TRANSMITTERS
4 A-SIDE TRANSMITTERS
4 B-SIDE TRANSMITTERS
4 CONTROL PINS
ENABLE RECEIVER A-SIDE (ENRA)
ENABLE RECEIVER B-SIDE (ENRB)
ENABLE RECEIVER A-SIDE (ENTA)
ENABLE RECEIVER B-SIDE (ENTB)
21
C1+
23 C1-
24 C2+
25 C2-
18 ENTA
1 TA1OUT
14 TA1IN
2 TA2OUT
15 TA2IN
3 TA3OUT
16 TA3IN
4 TA4OUT
17 TA4IN
+5V
1µF
20
VCC
+5V TO +10V VOLTAGE DOUBLER
+10V TO -10V VOLTAGE INVERTER
+5V +5V
400kΩ
+5V +5V
400kΩ
+5V +5V
400kΩ
+5V +5V
400kΩ
1µF
V+ 22
26
V-
1µF
ENTB 27
TB1OUT 44
TB1IN 31
TB2OUT 43
TB2IN 30
TB3OUT 42
TB3IN 29
TB4OUT 41
TB4IN 28
8 RA1IN
RB1IN 37
5kΩ
10 RA1OUT
7 RA2IN
5kΩ
11 RA2OUT
6 RA3IN
5kΩ
RB1OUT 35
RB2IN 38
5kΩ
RB2OUT 34
RB3IN 39
5kΩ
12 RA3OUT
5 RA4IN
5kΩ
RB3OUT 33
RB4IN 40
5kΩ
13 RA4OUT
9 ENRA
GND
19
5kΩ
RB4OUT 32
ENRB 36
Figure 24. MAX248 Pin Configuration and Typical Operating Circuit
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