MAX3140EEI-T Maxim Integrated, MAX3140EEI-T Datasheet - Page 29
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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
Figure 24. Typical Half-Duplex Operating Circuit
Figure 25. Typical Half-Duplex RS-485 Network
SPI/MICROWIRE-Compatible UART with Integrated
DE
RO
RE
DI
*NOTE: TO SHUT DOWN THE RS-485 TRANSCEIVER, DRIVE RE SEPARATELY.
D
MAX3140
______________________________________________________________________________________
R
True Fail-Safe RS-485/RS-422 Transceivers
+5V
Y
Z
120Ω
V
CC
100k
B
V
H/F
SHDN
CTS
RTS
TX
RX
RO
DI
DE
RE*
SRL
DI
CC
D
D
R
MAX3140
A
DE
UART
RO
R
RE
DOUT
SCLK
RXP
TXP
DIN
IRQ
CS
X1
X2
Z
Y
V
CC
HALF-DUPLEX
RS-485 I/O
B
DI
10k
D
A
DE
RO
120Ω
R
RE
μP
A
B
R
D
DE
RO
DI
RE
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