MAX3140EEI-T Maxim Integrated, MAX3140EEI-T Datasheet - Page 30

• 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

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