MAX3140CEI+T Maxim Integrated Products, MAX3140CEI+T Datasheet - Page 29

• Manufacturer Part Number: MAX3140CEI+T
• Description: IC UART W/RS485 28-QSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX3140CEI+T

• Features: Transceiver
• Fifo's: 8 Byte
• Protocol: RS232, RS485
• Voltage - Supply: 4.75 V ~ 5.25 V
• With Irda Encoder/decoder: Yes
• With False Start Bit Detection: Yes
• With Cmos: Yes
• Mounting Type: Surface Mount
• Package / Case: 28-QSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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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