Figure 5.
STEVAL-PLC001V1 bottom components
1.
Morpho connector
2.
Morpho connector
3.
(U27) - high-performance and DSP with FPU Arm Cortex-M7 MCU
4.
RAM
5.
Flash memory
6.
Isolation boundary
7.
MCU reset switch (S2)
1
3 4
5
2
6
7
1.5
Main components
1.5.1
CLT01-38SQ7
The
is the 8-channel current limiter termination with high-speed SPI interface. The
features daisy chain connection via SPI for this IC, the
on the output side and the morpho
connectors. The three peripherals exploit daisy chain connection allowing less wiring on the PCB.
The
provides an 8-line protected digital input termination with serialized state transfer. It enhances
the I/O module density by cutting the dissipation (78 mW per input) and reducing the count of opto-transistors. Its
6.25 MHz SPI peripheral output serializes the input state transfer to the I/O module controller.
Available in a 7x7 QFN package with 48 leads, the device complies with the following standards: IEC61000-4-2
(±8 kV contact discharge and ±15 kV air discharge), IEC61000-4-4 (±4 kV) and IEC61000-4-5 (input = ±1 kV,
power supply = ±2.5 kV).
1.5.2
CLT03-2Q3
The
is a digital input current limiter which drastically reduces the power dissipation of digital inputs. It
does not require external power supply as the device is activated with the input signal and consumes no power in
off state.
The
features two independent channels and is high-side, low-side and reverse plug-in compatible. It
can drive opto-couplers or 3.3 V LVTTL circuits.
UM2933
Main components
UM2933
-
Rev 1
page 7/42
