Renesas RTKA788152DE0000BU Manual

RTKA788152DE0000BU
RTKA788152DE0000BU, the RS-485 evaluation
board, allows you to evaluate the half-duplex
transceivers of the RAA78815x family of RS-485
transceivers.
Specifications
▪ 4.5V to 5.5V Supply Voltage
▪ 115kbps Half-Duplex Transceiver RAA788152
RO
LK1
V
CC
/RE
V
CC
DE
DI
R15UZ0002EU0100 Rev.1.00
Oct 6, 2021
RO
1
A
/RE
2
B
3
C
4
D
LK2
A
DE
B
C
DI
Figure 1. Block Diagram
Features
▪ Single 115kbps Half-Duplex Transceiver
▪ RAA788152 (115kbps version currently installed)
can be unsoldered and replaced by RAA788155
(1Mbps version) or RAA788158 (20Mbps version)
▪ Place holders for fail-safe biasing resistors
▪ Configuration jumpers to operate the transceiver as
transmitter or receiver, or as a transmitter with
loopback
VCC
V
CC
C 10u
3
C
0.1u
U1 2
C
0.01u
8 1
VCC
RO
7
RE B/Z
6
DE A/Y
5
DI GND
Evaluation Board Manual
GND
GND
B/Z
A/Y
V
CC
C
4
DNP
© 2021 Renesas Electronics
R
2
DNP
B/Z
LK3
R
T
120Ω
A/Y
R
1
DNP
SHIELD
R
3 GND
0Ω
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