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參數(shù)資料
| 型號(hào)： | CY7C63001C |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | Universal Serial Bus Microcontroller(通用串行總線微控制器) |
| 中文描述： | 通用串行總線控制器（通用串行總線微控制器） |
| 文件頁數(shù)： | 17/28頁 |
| 文件大?。?/td> | 1076K |
| 代理商： | CY7C63001C |
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CY7C63001C
CY7C63101C
Document #: 38-08026 Rev. *B
Page 17 of 28
6.10
The following section describes the CY7C630/101C
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.
USB Physical Layer Characteristics
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
μ
s 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
Low-Speed Driver Characteristics
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).
Receiver Characteristics
Figure 6-22. Low-speed Driver Signal Waveforms
VSS
Signal pins
pass output
spec levels
with minimal
reflections and
ringing
One Bit
Time
(1.5Mb/s)
Driver
Signal Pins
V
SE
(max)
V
SE
(min)
Figure 6-23. Differential Input Sensitivity Over Entire Common Mode Range
0.0
0.2
0.4
0.6
0.8
1.0
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
Common Mode Input Voltage (volts)
M
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CY7C63231-PC | enCoRe USB Low-speed USB Peripheral Controller |
| CY7C63231A-SC | enCoRe USB Low-speed USB Peripheral Controller |
| CY7C63221A | enCoRe USB Low-speed USB Peripheral Controller |
| CY7C63221A-PC | enCoRe USB Low-speed USB Peripheral Controller |
| CY7C63221A-XC | TV 32C 32#20 SKT RECP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CY7C63001C-PXC | 功能描述:8位微控制器 -MCU Universal Serial Bus Microcontroller RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| CY7C63001C-SC | 制造商:Cypress Semiconductor 功能描述: |
| CY7C63001C-SXC | 功能描述:8位微控制器 -MCU Universal Serial Bus Microcontroller RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| CY7C63001C-SXCT | 功能描述:8位微控制器 -MCU USB Microcontroller RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| CY7C63001C-XC DIE | 制造商:Cypress Semiconductor 功能描述: |
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