STEVAL-PCC004V1 STMicroelectronics, STEVAL-PCC004V1 Datasheet - Page 9

• Manufacturer Part Number: STEVAL-PCC004V1
• Description: BOARD EVAL USB STUSB02E/ST72F63B
• Manufacturer: STMicroelectronics

Specifications of STEVAL-PCC004V1

• Main Purpose: Interface, USB 2.0 Slave
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: STUSB02E, ST72F63B
• Primary Attributes: Low Speed (1.5Mbps)
• Secondary Attributes: GUI of HID, ESD Protection
• Processor To Be Evaluated: ST72F63BE2
• Data Bus Width: 8 bit
• Interface Type: USB
• Silicon Manufacturer: ST Micro
• Silicon Core Number: STUSB02E, ST7263BE2
• Kit Contents: Board CD Docs
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-8209; STEVAL-PCC004V1

UM0529
3
3.1
3.1.1
3.2
3.3
Note:
Evaluation board components
Microcontroller U1
The microcontroller used for the STUSB02E/STUSB03E transceiver evaluation board is
ST72F63B. It is programmed with firmware to support the USB HID functionality for
demonstration purposes.
Table 1.
Oscillator
A 12 MHz crystal is used for providing the necessary clock to the microcontroller. C3 and C4
capacitors are used along with a quartz crystal.
STUSB02E/STUSB03E transceiver U5
The STUSB02E and STUSB03 are single chip USB transceivers that support both USB full-
speed and USB low-speed operations. Both have an integrated 5 V to 3.3 V regulator which
allows direct powering from the VBUS. The transceivers also support sharing mode when
VBUS is not present which allows the D+/D- lines to be shared with other serial protocols.
They are also designed to operate down to 1.6 V so that they are compatible with lower
system voltages of most portable systems, which include PDAs, MP3 players and cell
phones.
74LCX139MTR low voltage dual 2-to-4 decoder/demultiplexer
U2,U3
The 74LCX139MTR is a low-voltage CMOS dual 2-to-4 line decoder/ demultiplexer. It is
ideal for low-power and high-speed 3.3 V applications. It can be interfaced to 5 V signal
environment for inputs. The active low enable input can be used for gating or as a data input
for demultiplexing applications. While the enable input is held high, all four outputs are high
independently of the other inputs.
It has the same speed performance at 3.3 V as well as the 5 V, combined with lower power
consumption. All inputs and outputs are equipped with protection circuits against static
discharge, giving them 2 KV ESD immunity and transient excess voltage.
As explained above this device is used for interfacing between the microcontroller and
STUSB02/STUSB03E for 5 V to 3.3 V signals. The 74LVX139MTR device can also be used
as it also has 5 V tolerant inputs.
The 74LCX139MTR is used for interfacing the ST72F63B microcontroller with an operating
voltage ranging from 4 V to 5.5 V in the evaluation board to transceiver. In the final
Microcontroller details
Operating voltage
Sales type
Package
Feature
Evaluation board components
ST72F63BK4B1
4.0 V to 5.5 V
Description
PSDIP32
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