CY7C63001C-SXCT Cypress Semiconductor Corp, CY7C63001C-SXCT Datasheet - Page 17

• Manufacturer Part Number: CY7C63001C-SXCT
• Description: IC MCU 4K USB MCU LS 20SOIC
• Manufacturer: Cypress Semiconductor Corp
• Series: M8™r

Specifications of CY7C63001C-SXCT

• Applications: USB Microcontroller
• Core Processor: M8A
• Program Memory Type: OTP (4 kB)
• Controller Series: CY7C630xx
• Ram Size: 128 x 8
• Interface: USB
• Number Of I /o: 12
• Voltage - Supply: 4 V ~ 5.25 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 20-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Document #: 38-08026 Rev. *B
6.10
The
compliance to the Chapter 7 Electrical section of the USB
Specification, Revision 1.1. The section contains all signaling,
power distribution, and physical layer specifications necessary
to describe a low- speed USB function.
6.10.1
The CY7C630/101C devices use a differential output driver to
drive the Low-speed USB data signal onto the USB cable, as
shown in Figure 6-22. The output swings between the differ-
ential HIGH and LOW state are well balanced to minimize
signal skew. Slew rate control on the driver minimizes the
radiated noise and cross talk on the USB cable. The driver’s
outputs support three-state operation to achieve bidirectional
half duplex operation. The CY7C630/101C driver tolerates a
voltage on the signal pins of –0.5V to 3.8V with respect to local
ground reference without damage. The driver tolerates this
voltage for 10.0 µs while the driver is active and driving, and
tolerates this condition indefinitely when the driver is in its
high-impedance state.
A low-speed USB connection is made through an unshielded,
untwisted wire cable a maximum of 3 meters in length. The rise
following
USB Physical Layer Characteristics
Low-Speed Driver Characteristics
section
Signal Pins
Driver
V
V
Figure 6-23. Differential Input Sensitivity Over Entire Common Mode Range
SE
SE
VSS
(max)
(min)
describes
1.0
0.8
0.6
0.4
0.2
0.0
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2
Figure 6-22. Low-speed Driver Signal Waveforms
(1.5Mb/s)
the
One Bit
Time
CY7C630/101C
C om m on M ode Input Voltage (volts)
and fall time of the signals on this cable are well controlled to
reduce RFI emissions while limiting delays, signaling skews
and distortions. The CY7C630/101C driver reaches the
specified static signal levels with smooth rise and fall times,
resulting in minimal reflections and ringing when driving the
USB cable. This cable and driver are intended to be used only
on network segments between low-speed devices and the
ports to which they are connected.
6.10.2
The CY7C630/101C has a differential input receiver which is
able to accept the USB data signal. The receiver features an
input sensitivity of at least 200 mV when both differential data
inputs are in the range of at least 0.8V to 2.5V with respect to
its local ground reference. This is the common mode input
voltage range. Proper data reception is also guaranteed when
the differential data lines are outside the common mode range,
as shown in Figure 6-23. The receiver tolerates static input
voltages between –0.5V and 3.8V with respect to its local
ground reference without damage. In addition to the differ-
ential receiver, there is a single-ended receiver for each of the
two data lines. The single-ended receivers have a switching
threshold between 0.8V and 2.0V (TTL inputs).
reflections and
with minimal
pass output
Signal pins
spec levels
ringing
Receiver Characteristics
CY7C63001C
CY7C63101C
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