V
參數(shù)資料
型號(hào): MAX244EQH+TD
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 27/38頁(yè)
文件大?。?/td> 0K
描述: IC RS-232 DRVR/RCVR 44-PLCC
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 500
類(lèi)型: 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù): 8/10
規(guī)程: RS232
電源電壓: 4.75 V ~ 5.25 V
安裝類(lèi)型: 表面貼裝
封裝/外殼: 44-LCC(J 形引線)
供應(yīng)商設(shè)備封裝: 44-PLCC(16.59x16.59)
包裝: 帶卷 (TR)
+5V-Powered, Multichannel RS-232
Drivers/Receivers
400k
Ω
+10V TO -10V VOLTAGE INVERTER
+5V TO +10V VOLTAGE DOUBLER
VCC
400k
Ω
GND
+5V
18
25
24
23
21
20
1
μF
1
μF
1
μF
1
μF
1
μF
14
3
16
5k
Ω
5k
Ω
5k
Ω
5k
Ω
5k
Ω
5k
Ω
5k
Ω
5k
Ω
ENTA
C2-
C2+
C1-
C1+
TA1OUT
TA1IN
TA3OUT
TA3IN
8 RA1IN
10 RA1OUT
7 RA2IN
11 RA2OUT
6 RA3IN
12 RA3OUT
5 RA4IN
13
19
RA4OUT
9
27
26
22
44
31
42
29
37
35
38
34
39
33
40
32
36
ENRA
ENTB
V-
V+
TB1OUT
TB1IN
TB3OUT
TB3IN
RB1IN
RB1OUT
RB2IN
RB2OUT
RB3IN
RB3OUT
RB4IN
RB4OUT
ENRB
400k
Ω
+5V
2
15
TA2OUT
TA2IN
+5V
43
30
TB2OUT
TB2IN
400k
Ω
+5V
4
17
TA4OUT
TA4IN
+5V
41
28
TB4OUT
TB4IN
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
TA4IN
V
CC
RA4IN
MAX248
PLCC
TOP VIEW
TA4OUT
TA3OUT
TA2OUT
TA1OUT
TB1OUT
TB2OUT
TB3OUT
TA4OUT
RB4IN
GND
V+
C1+
C2+
C1-
V-
C2-
TB4IN
ENTB
RB2IN
RB1IN
RB1OUT
RB2OUT
RB3OUT
RB4OUT
TB1IN
TB2IN
TB3IN
TA3IN
TA2IN
TA1IN
RA4OUT
RA3OUT
RA2OUT
RA1OUT
ENRA
RA1IN
7
39
RB3IN
RA2IN
6
18
RA3IN
ENRB
ENTA
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
)
+
Figure 24. MAX248 Pin Configuration and Typical Operating Circuit
Maxim Integrated
33
MAX220–MAX249
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