MAX14840PMB1 Datasheet, PDF (2/7 Pages) Maxim Integrated Products – MAX14840PMB1 Peripheral Module

MAX14840PMB1 Peripheral Module
DESIGNATION
C1
C2
J1
J2
QTY
1
1
1
1
DESCRIPTION
1FF Q10%, 10V X7R ceramic
capacitor (0603)
TDK C1608X7R1A105K
0.1FF Q10%, 16V X7R ceramic
capacitor (0603)
Murata GRM188R71C104KA01D
6-pin right-angle male header
2-position terminal block
On-Shore Technology
ED500/2DS
Component List
DESIGNATION
JP1
R1–R4
R5
U1
—
—
QTY
1
4
1
1
1
1
DESCRIPTION
2-pin straight male header
150I Q5% resistors (0603)
120I Q5% resistor (1206)
40Mbps, +3.3V, RS-485 half-
duplex transceiver (8 SO)
Maxim MAX14840EASA+
Shorting jumper
PCB: EPCB14840EPM1
Component Suppliers
SUPPLIER
Murata Electronics North America, Inc.
On-Shore Technology, Inc.
TDK Corp.
PHONE
770-436-1300
480-921-3000
847-803-6100
WEBSITE
www.murata-northamerica.com
www.on-shore.com
www.component.tdk.com
Note: Indicate that you are using the MAX14840PMB1 when contacting these component suppliers.
Detailed Description
UART Interface
The MAX14840PMB1 peripheral module can interface
to the host by plugging directly into a Pmod-compatible
port (configured for UART ) through connector J1.
Connector J1 provides connection of the module to the
Pmod host through an interface similar to the Pmod
UART Type 4 standard recommended by Digilent. The
transmit driver and receive pin assignment are the same
as the standard. However, the CTS and RTS signals
are replaced by half-duplex driver- and receiver-enable
signals. See Table 1.
Connector J2 provides the RS-485 positive and negative
signal pair. See Table 2.
Table 1. Connector J1 (UART Communication)
PIN SIGNAL
DESCRIPTION
1
RE
Receiver-enable input. This active-low
pin enables the half-duplex receiver.
Driver input. This pin carries the transmit
2
DI
data from the Pmod system’s UART
transmitter to a connected receiver.
Receiver output. This pin carries the
3
RO
half-duplex receive data to the Pmod
system’s UART receiver.
Driver-output-enable input. This active-
4
DE
high pin enables the half-duplex
transmitter.
5
GND Ground
6
VCC Power supply
Table 2. Connector J2
PIN SIGNAL
DESCRIPTION
1 RS485-A Noninverting RS-485 signal
2 RS485-B Inverting RS-485 signal
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