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USB3343-CP 数据手册 - Microchip（微芯）
制造商:
Microchip（微芯）
分类:
接口芯片
封装:
QFN-24
描述:
USB334x 系列 USB 2.0 收发器Microchip 的 USB334x 系列设备是高速 USB2.0 ULPI 收发器，支持 USB-IF 电池充电 1.2 (BC 1.2) 规格。### 特点符合 USB-IF 电池充电 1.2 规格 符合链路电源管理 (LPM) 规格 集成 ESD 保护电路 - 高达 ±25KV IEC 空气放电，无需外部设备 过压保护电路 (OVP) - 防止 VBUS 引脚受到电压高达 30V 的连续直流的损坏 集成 USB 开关 - 仅限 USB3341、USB3346 和 USB3347 型号 Microchip 的 RapidCharge Anywhere™： \- 通过 USB 端口的充电电流是传统解决方案的 3 倍 \- 符合 USB-IF 电池充电 1.2 规格，适用于任何便携式设备 \- 通过兼容 USB 主机或专用充电器的充电电流高达 1.5A \- 专用充电端口 (DCP)、充电 (CDP) 和标准 (SDP) 下游端口支持 flexPWR® 技术 - 极低电流设计，特别适用于电池供电应用 单电源操作 - 集成 1.8V 和 3.3V 调节器 PHYBoost - 可编程 USB 收发器驱动强度，用于还原信号完整性 VariSense™ - 可编程 USB 接收器灵敏度 免包装设计，用于优化定时性能和简化设计 提供外部参考时钟操作 智能检测电路允许识别 USB 充电器、耳机或数据电缆插入 包括对 On-The-Go 补充修订版 2.0 规格中详述的可选 On-The-Go (OTG) 协议的全面支持 支持 OTG 主机协商协议 (HNP) 和会话请求协议 (SRP) UART 模式，用于非 USB 串行数据传输 ID、DP 和 DM 线路至 VBUS 或接地连接内部 5V 电缆短路保护 ### USB (通用串行总线)- Microchip展开
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引脚图在P11P12P13P14P15P16P65P66P67P69Hot
典型应用电路图在P2P42
原理图在P9P10P45P48
封装尺寸在P88
标记信息在P91
封装信息在P89P90
功能描述在P8
技术参数、封装参数在P17P20P27
应用领域在P1
电气规格在P19P24P25
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USB3343-CP数据手册
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Enhanced Single Supply Hi-Speed USB ULPI Transceiver
Datasheet
Revision 1.2 (02-08-13) 66 SMSC USB334x
DATASHEET
6.6.0.2 6-Pin FS/LS Serial Mode
Six pin serial mode utilizes the data bus pins for the serial functions shown in Table 6.9.
6.7 Carkit Mode
The USB334x includes Carkit Mode to support a USB UART and USB Audio Mode.
By entering Carkit Mode, the USB334x current drain is minimized. The internal PLL is disabled and
the 60MHz ULPI CLKOUT will be stopped to conserve power by default. The Link may configure the
60MHz clock to continue by setting the ClockSuspendM bit of the Interface Control register before
entering Carkit Mode. If set, the 60 MHz clock will continue during the Carkit Mode of operation.
In Carkit Mode, interrupts are possible if they have been enabled in the Carkit Interrupt Enable register.
The state of each interrupt source is sampled prior to the assertion of DIR and this is compared against
the asynchronous level from interrupt source. In Carkit Mode, the Linestate signals are not available
per the ULPI specification.
The ULPI interface is redefined to the following when Carkit Mode is entered.
interrupt DATA[3] OUT Asserted when any unmasked interrupt occurs. Active high.
Reserved DATA[7:4] OUT Driven Low.
Table 6.9 Pin Definitions in 6 pin Serial Mode
SIGNAL
CONNECTED
TO DIRECTION DESCRIPTION
tx_enable DATA[0] IN Active High transmit enable.
tx_data DATA[1] IN Tx differential data on DP/DM when tx_enable is high.
tx_se0 DATA[2] IN Tx SE0 on DP/DM when tx_enable is high.
interrupt DATA[3] OUT Asserted when any unmasked interrupt occurs. Active high.
rx_dp DATA[4] OUT Single ended receive data on DP.
rx_dm DATA[5] OUT Single ended receive data on DM.
rx_rcv DATA[6] OUT Differential receive data from DP and DM.
Reserved DATA[7] OUT Driven Low.
Table 6.10 Pin Definitions in Carkit Mode
SIGNAL
CONNECTED
TO DIRECTION DESCRIPTION
txd DATA[0] IN UART TXD signal that is routed to the DM pin if the TxdEn
is set in the Carkit Control register.
rxd DATA[1] OUT UART RXD signal that is routed to the DP pin if the RxdEn
bit is set in the Carkit Control register.
Table 6.8 Pin Definitions in 3 pin Serial Mode (continued)
SIGNAL
CONNECTED
TO DIRECTION DESCRIPTION
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