参数资料
型号: MAX249EQH+TD
厂商: Maxim Integrated Products
文件页数: 22/38页
文件大小: 0K
描述: IC RS-232 DRVR/RCVR 44-PLCC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 500
类型: 收发器
驱动器/接收器数: 6/10
规程: RS232
电源电压: 4.75 V ~ 5.25 V
安装类型: 表面贴装
封装/外壳: 44-LCC(J 形引线)
供应商设备封装: 44-PLCC(16.59x16.59)
包装: 带卷 (TR)
+5V-Powered, Multichannel RS-232
Drivers/Receivers
400k
Ω
+10V TO -10V VOLTAGE INVERTER
+5V TO +10V VOLTAGE DOUBLER
VCC
400k
Ω
400k
Ω
GND
+5V
25
24
23
21
20
2
1
μF
1
μF
1
μF
1
μF
1
μF
16
3
17
4
18
5k
Ω
5k
Ω
5k
Ω
5k
Ω
5k
Ω
5k
Ω
5k
Ω
5k
Ω
5k
Ω
5k
Ω
C2-
C2+
C1-
C1+
TA2OUT
TA2IN
TA3OUT
TA3IN
TA4OUT
TA4IN
9 RA1IN
10 RA1OUT
8 RA2IN
11 RA2OUT
7 RA3IN
12 RA3OUT
6 RA4IN
13 RA4OUT
5 RA5IN
14
19
RA5OUT
26
22
43
29
42
28
41
27
36
35
37
34
38
33
39
32
40
31
V-
V+
TB2OUT
TB2IN
400k
Ω
2
15
TA1OUT
TA1IN
44
30
TB1OUT
TB1IN
TB3OUT
TB3IN
TB4OUT
TB4IN
RB1IN
RB1OUT
RB2IN
RB2OUT
RB3IN
RB3OUT
RB4IN
RB4OUT
RB5IN
RB5OUT
MAX249 FUNCTIONAL DESCRIPTION
10 RECEIVERS
5 A-SIDE RECEIVERS
5 B-SIDE RECEIVERS
8 TRANSMITTERS
4 A-SIDE TRANSMITTERS
4 B-SIDE TRANSMITTERS
NO CONTROL PINS
44
1
2
3
440
41
42
43
5
21
24
26
25
27 28
22 23
19 20
8
9
10
11
12
13
14
15
16
17
29
30
31
32
33
34
35
36
37
38
TA3IN
V
CC
RA5IN
MAX244
PLCC
TOP VIEW
TA4OUT
TA3OUT
TA2OUT
TA1OUT
TB1OUT
TB2OUT
TB3OUT
TB4OUT
RB5IN
GND
V+
C1+
C2+
C1-
V-
C2-
TB3IN
TB4IN
RB3IN
RB2IN
RB1IN
RB1OUT
RB2OUT
RB3OUT
RB4OUT
RB5OUT
TB1IN
TB2IN
TA2IN
TA1IN
RA5OUT
RA4OUT
RA3OUT
RA2OUT
RA1OUT
RA1IN
RA2IN
7
39
RB4IN
RA3IN
6
18
RA4IN
TA4IN
+5V
+
Figure 20. MAX244 Pin Configuration and Typical Operating Circuit
Maxim Integrated
29
MAX220–MAX249
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