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: 86/163页
文件大小: 2844K
代理商: UPSD3212AV-24U6T
uPSD3212A, uPSD3212C, uPSD3212CV
86/163
External USB Pull-Up Resistor
The USB system specifies a pull-up resistor on the
D- pin for low-speed peripherals. The USB
Spec 1.1 describes a 1.5k
pull-up resistor to a
3.3V supply. An approved alternative method is a
7.5k
pull-up to the USB V
CC
supply. This alterna-
tive is defined for low-speed devices with an inte-
grated cable. The chip is specified for the 7.5k
pull-up. This eliminates the need for an external
3.3V regulator, or for a pin dedicated to providing
a 3.3V output from the chip.
Figure 42. USB Data Signal Timing and Voltage Levels
Figure 43. Receiver Jitter Tolerance
AI06631
VCR
D-
D+
t
R
t
F
10%
90%
90%
10%
V
OH
V
OL
AI06632
T
JR
T
JR1
T
JR2
Consecutive
Transitions
N*T
PERIOD
+T
JR1
T
PERIOD
Paired
Transitions
N*T
PERIOD
+T
JR2
Differential
Data Lines
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