NXP Semiconductors
UM11826
FRDMDUALK3664EVB evaluation board
Figure 2. Evaluation board featured component locations
Name
Description
MCU interface (K2, K1, K6)
interface pin for microcontroller development platform (recommended
S32K3x4EVB-Q172)
UART (J6)
universal asynchronous receiver transmitter (UART) connection (for example,
for FTDI cable)
MC33664
isolated network high-speed transceiver
Transformer
bus isolator transformer (T1, T2)
TPL1 bus
TPL1 bus interface
TPL2 bus
TPL2 bus interface
MCU interface (K3, K4, K5)
interface pin for microcontroller development platform (recommended
S32K3x4EVB-Q172)
Table 2. Evaluation board component descriptions
6.2.1 MC33664: Isolated network high-speed transceiver
6.2.1.1 General description
The MC33664 is a SMARTMOS transceiver physical layer transformer driver designed to
interface a microcontroller conveniently to a high speed isolated communication network.
MCU SPI data bits are directly converted to pulse bit information and transferred to the
bus network.
Slave response messages use the same structure to send pulse bit information to the
MC33664, which is converted and sent back to the MCU as an SPI bit stream.
UM11826
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User manual
Rev. 1 — 6 September 2022
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