參數(shù)資料
型號: MAX3480EACPI+
廠商: Maxim Integrated Products
文件頁數(shù): 6/16頁
文件大小: 0K
描述: IC RS485/RS422 DATA INTRFC 28DIP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 14
類型: 收發(fā)器
驅(qū)動器/接收器數(shù): 1/1
規(guī)程: RS422,RS485
電源電壓: 3 V ~ 3.6 V
安裝類型: 通孔
封裝/外殼: 28-DIP(0.600",15.24mm)
供應(yīng)商設(shè)備封裝: 28-PDIP
包裝: 管件
產(chǎn)品目錄頁面: 1407 (CN2011-ZH PDF)
MAX3480A/MAX3480B
Complete, Isolated, 3.3V
RS-485/RS-422 Data Interface
14
______________________________________________________________________________________
Figure 9. Typical RS-485/RS-422 Network
DI
DE
RO
B
A
R
D
RE
RO
DE
DI
R
120
D
A
B
RE
DI
DE
RO
B
A
R
D
AC1 (MAKE NO CONNECTION)
AC2 (MAKE NO CONNECTION)
SHIELD
(OPTIONAL)
ISO VCC1
B
D2
D1
VCC2
VCC1
ISO RO DRV
A
B
A
SH
ISO DI IN
ISO DE IN
VCC3
SD
FS
GND1
ISO COM1
ISO DI DRV
ISO VCC2
ISO DE DRV
DE
GND2
VCC4
DI
ISO COM2
ISO RO LED
VCC5
RO
R4
R7
R5
R8
100
120
R6, 200
MAX3480A/B
LOGIC GROUND
ISOLATION BARRIER
ISOLATED COMMON
TERMINATING RESISTOR
(ONE RESISTOR ON EACH END)
MAX485
MAX487
MAX845
1
2
28
27
3
4
5
6
7
8
9
10
11
12
13
14
26
25
24
23
22
21
20
19
18
17
16
15
TERMINATING RESISTOR
(ONE RESISTOR ON EACH END)
D1, D2
1N914
R1
130
R2
R3
BOOSTED V+
DRIVER INPUT
DRIVER ENABLE
VIN
3.0V to 3.6V
C1
22F
6V
C2
0.1F
C3
0.01
F
16
14
12
5
7
13
15
8
2
DI
DE
RO
17
20
18
3
9
10
11
RECEIVER OUTPUT
6
4
74HC240
NOTE: RESISTOR R8
PROTECTS THE MAX3480
FROM TRANSIENT
CURRENTS BETWEEN
SHIELD AND “A” & “B”.
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