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参数资料
型号： UPSD3212AV-24U6T
厂商： 意法半导体
英文描述： Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic
中文描述： 闪存可编程系统设备与8032具有USB和可编程逻辑控制器
文件页数： 83/163页
文件大小： 2844K
代理商： UPSD3212AV-24U6T
83/163
uPSD3212A, uPSD3212C, uPSD3212CV
Transceiver
USB Physical Layer Characteristics.
The
lowing section describes the uPSD321x Devices
compliance to the Chapter 7 Electrical section of
the USB Specification, Revision 1.1. The section
contains all signaling, and physical layer specifica-
tions necessary to describe a low speed USB
function.
Low Speed Driver Characteristics.
The
uPSD321x Devices use a differential output driver
to drive the Low Speed USB data signal onto the
USB cable. The output swings between the differ-
ential high and low state are well balanced to min-
imize signal skew. The 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 bi-directional half
duplex operation. The uPSD321x Devices driver
fol-
tolerates a voltage on the signal pins of -0.5V to
3.6V with respect to local ground reference without
damage. The driver tolerates this voltage for
10.0μs 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 and fall time of the sig-
nals on this cable are well controlled to reduce RFI
emissions while limiting delays, signaling skews
and distortions. The uPSD321x Devices driver
reaches the specified static signal levels with
smooth rise and fall times, resulting in segments
between low speed devices and the ports to which
they are connected.
Figure 40. Low Speed Driver Signal Waveforms
AI06629
Signal pins
pass output
spec levels
with minimal
reflections and
ringing
One Bit
Time
1.5 Mb/s
V
SS
Driver
Signal Pins
V
SE
(min)
V
SE
(max)
相关PDF资料
PDF描述
UPSD3212AV-40T6T Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic
UPSD3212AV-40U6T Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic
UPSD3212CV-24T6 Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic
UPSD3212CV-24U6 Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic
uPSD3212C Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM(带8032微控制器内核和16Kbit SRAM的FLASH可编程系统器件)
相关代理商/技术参数
参数描述
UPSD3212AV-40T6T 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic
UPSD3212AV-40U6T 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic
UPSD3212C 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic
UPSD3212C-24T1T 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM
UPSD3212C-24T6T 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic
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