参数资料
| 型号： | MIC2555-0BML TR |
| 厂商： | Micrel Inc |
| 文件页数： | 2/29页 |
| 文件大小： | 0K |
| 描述： | IC TXRX UTG USB BUS UNIV 24MLF |
| 标准包装： | 1,000 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 1/0 |
| 规程： | USB 2.0 |
| 电源电压： | 3 V ~ 4.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-VFQFN 裸露焊盘，24-MLF? |
| 供应商设备封装： | 24-MLF?（4x4） |
| 包装： | 带卷 (TR) |
| 其它名称： | MIC2555-0BMLTR |
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Micrel, Inc.
MIC2555
December 2006
10
M9999-121406
Functional Description
The MIC2555 is designed to provide full USB On-The-
Go (OTG) connectivity in mobile systems where low
power and small size are key considerations. Intended
for use in self-powered systems, the MIC2555 draws no
current from VBUS for its operation, but will supply a
minimum of 10mA at 5V to VBUS, from an on-chip
charge pump, when operating as an A-device. The
MIC2555 meets USB physical layer specifications while
operating with logic supply voltages as low as 1.6V and
battery voltages down to 3.0V.
MIC2555 operation is controlled through an I2C bus by
reading and/or writing to registers within the MIC2555.
Control registers are used to set the operational mode to
USB, Audio or UART (‘RS232’ format). Other features
include VBUS comparators for SRP detection and ID pin
recognition of USB and non-USB peripherals.
The
MIC2555
minimizes
collateral
components,
requiring only 4 external capacitors and two resistors. All
USB required pull-up/pull-down resistors are on-chip.
15KV ESD protection on all pins exposed to user contact
(VBUS, D+, D-, ID and GND) eliminates the need for
external ESD transient protection devices.
Definitions and Conventions
Car Kit
=
A non-USB target device
I
2C
=
Inter IC Bus (I
2C)
NUT
=
non-USB target device
OTG
(1)
=
On-The-Go
SIE
=
Serial Interface Engine
SE0
=
Single Ended Zero
SRP
=
Session Request Protocol
USB
=
Universal Serial Bus
USB-IF
=
USB Implementers Forum
Serial
Controller
=
Means the I
2C control function within
MIC2555.
UPPER CASE
=
IC pins
Lower case
=
Control Register Bits
Note
:
1. An ‘OTG Controller’ is understood to be any integrated circuit, or
system, possessing a built-in USB OTG Host/Device control
function but lacking the USB physical layer interface.
System Description
Overview:
The MIC2555 OTG Transceiver provides the physical
interface for ASICs, uPs and SOCs having an On-The-
Go Serial Interface Engine (SIE) but lacking a physical
interface capable of driving cables, or generating and
detecting the necessary voltages to operate as a USB
host.
MIC2555 goes beyond the confines of the USB OTG
standard and provides flexible communication between
many kinds of digital devices. Point-to-point UART and
Audio communications can also be accomplished using
the MIC2555 and any and all of these formats can be
utilized by a single system.
All communications are accomplished via the D+ and D-
I/O pins. The information passed through D+ and D-,
such as USB, UART, or audio, depends upon the mode
of communication. The system controls the mode of
communication through the MIC2555’s control registers.
Modes of Operation
The MIC2555 OTG Transceiver has five distinct
operating modes:
USB mode
: Operates as a USB OTG transceiver.
UART mode
: Operates as a UART transceiver
Audio mode
: Operates as a passive device within
the audio path, but actively monitoring for digital
control signals.
USB mode
The two modes of USB operation involve the way data is
transferred between the SIE and the transceiver. These
modes are:
DAT-SE0 mode
:
-
DAT_VP_RX
.DAT: single ended data I/O
-
SE0_VM_TX
SEO: detects or sends the SE0
condition.
-
RCV is not used
VP-VM mode:
-
DAT_VP_RX
VP: D+ data to transceiver output.
-
SE0_VM_TX
VM: D- data to transceiver output.
-
RCV
Output of the differential receiver.
Data flow direction:
Transmit
OE_INT/ = 0
Receive
OE_INT/ = 1
Conditions for USB mode:
uart_en = 0
Speed = Low speed =0
Full speed = 1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC2555-0YML TR | 功能描述:USB 接口集成电路 USB Transceiver - Lead Free RoHS:否 制造商:Cypress Semiconductor 产品:USB 2.0 数据速率: 接口类型:SPI 工作电源电压:3.15 V to 3.45 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:WLCSP-20 |
| MIC2555-0YML-TR | 功能描述:1/1 Transceiver Half USB 2.0 24-MLF? (4x4) 制造商:microchip technology 系列:- 包装:剪切带（CT） 零件状态:停产 类型:收发器 协议:USB 2.0 驱动器/接收器数:1/1 双工:半 接收器滞后:200mV 数据速率:400kbps 电压 - 电源:3 V ~ 4.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘，24-MLF? 供应商器件封装:24-MLF?（4x4） 标准包装:1 |
| MIC2555-1BML TR | 功能描述:IC TXRX UTG USB BUS UNIV 24MLF RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:1,140 系列:AU 类型:收发器 驱动器/接收器数:1/1 规程:CAN 电源电压:5.3 V ~ 27 V 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SO 包装:管件 其它名称:935267940512AU5790D14AU5790D14-ND |
| MIC2555-1YML | 制造商:Rochester Electronics LLC 功能描述: 制造商:RF Micro Devices Inc 功能描述: |
| MIC2555-1YML TR | 功能描述:USB 接口集成电路 USB Transceiver - Lead Free RoHS:否 制造商:Cypress Semiconductor 产品:USB 2.0 数据速率: 接口类型:SPI 工作电源电压:3.15 V to 3.45 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:WLCSP-20 |
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