MAX3140EEI+T Maxim Integrated Products, MAX3140EEI+T Datasheet - Page 30
![IC UART W/RS485 28-QSOP](/photos/6/61/66154/28-qsop_21-0055_sml.jpg)
MAX3140EEI+T
Manufacturer Part Number
MAX3140EEI+T
Description
IC UART W/RS485 28-QSOP
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX3140CEIT.pdf
(36 pages)
Specifications of MAX3140EEI+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
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
30
______________________________________________________________________________________
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