MAX3140EEI-T Maxim Integrated, MAX3140EEI-T Datasheet - Page 29

• 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

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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