MAX3140EEI-T Maxim Integrated, MAX3140EEI-T Datasheet - Page 30
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MAX3140EEI-T
Manufacturer Part Number
MAX3140EEI-T
Description
UART Interface IC
Manufacturer
Maxim Integrated
Type
SPI/MICROWIRE-Compatible UART with Integrated ESD-Protected RS-485/RS-422 Transceiverr
Datasheet
1.MAX3140EEI-T.pdf
(36 pages)
Specifications of MAX3140EEI-T
Data Rate
115 Kbps, 500 Kbps, 10Mbps
Supply Voltage - Max
5.25 V
Supply Voltage - Min
4.75 V
Supply Current
0.7 mA
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Description/function
SPI/MICROWIRE-Compatible UART with integrated RS-485/RS-422 transceivers
Mounting Style
SMD/SMT
Operating Supply Voltage
5 V
SPI/MICROWIRE-Compatible UART with Integrated
True Fail-Safe RS-485/RS-422 Transceivers
Figure 26. Typical Full-Duplex Operating Circuit
Figure 27. Typical Full-Duplex RS-422 Network
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______________________________________________________________________________________
RO
RE
DE
DI
MAX3140
*NOTE: TO SHUT DOWN THE RS-485 TRANSCEIVER, DRIVE RE SEPARATELY WITH AN I/O OF A μP.
D
R
A
B
Z
Y
120Ω
120Ω
B
RE
R
RO
SHDN
V
H/F
CTS
RTS
TX
RX
RO
DI
DE
RE*
SRL
A
CC
D
R
MAX3140
UART
DOUT
SCLK
RXP
DIN
TXP
IRQ
CS
X1
X2
A
B
Y
Z
V
B
CC
RE
FULL-DUPLEX
RS-422 I/O
10k
R
RO
A
120Ω
120Ω
μP
Y
Z
B
A
R
D
RE
DI
DE
RO