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參數(shù)資料
| 型號： | AT43301-AU |
| 廠商： | ATMEL CORP |
| 元件分類： | 總線控制器 |
| 英文描述： | Low-cost USB Hub Controller |
| 中文描述： | UNIVERSAL SERIAL BUS CONTROLLER, PQFP32 |
| 封裝： | 7 X 7 MM, 1.40 MM THICKNESS, 0.80 MM PITCH, GREEN, PLASTIC, MS-026BBA, LQFP-32 |
| 文件頁數(shù)： | 5/27頁 |
| 文件大小： | 206K |
| 代理商： | AT43301-AU |
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5
1137J–USB–01/06
AT43301
Table 1-3.
Signal Descriptions
CEXT1
O
External Capacitor. For proper operation of the on-chip regulator, a 0.27 μF capacitor must be connected to
CEXT1.
DP0
B
Upstream Plus USB I/O. This pin should be connected to the CEXT1 pin through an external 1.5 k
pull-up
resistor. DP0 and DM0 form the differential signal pin pairs connected to the USB host controller or an
upstream Hub.
DM0
B
Upstream Minus USB I/O.
DP[1:4]
B
Port Plus USB I/O. This pin should be connected to VSS through an external 15 k
resistor. DP[1:4] and DM[1:4]
are the differential signal pin pairs to connect downstream USB devices.
DM[1:4]
B
Port Minus USB I/O. This pin should be connected to VSS through an external 15 k
resistor.
LFT
I
PLL Filter. For proper operation of the PLL, this pin should be connected through a 2.2 nF capacitor in parallel
with a 100
resistor in series with a 10 nF capacitor to ground (VSS).
LPSTAT
I
Local Power Status. Schmitt Trigger input pin that is used in the self-powered mode to indicate the condition of the
local power supply. This pin should be connected to the local power supply through a 100 k
resistor.
48
I
48 MHz Select, 32-lead LQFP only. This pin sets the clock input to the AT43301-AC. If it is tied low, a 48 MHz
clock must be input to OSC1. If it is tied high (to CEXT1 or to 5V through a 47 k
resistor), a 6 MHz crystal must
be connected between OSC1 and OSC2, or a 6 MHz clock input to OSC1.
OSC1
I
Oscillator Input. Input to the inverting 6 MHz oscillator amplifier.
OSC2
O
Oscillator Output. Output of the inverting oscillator amplifier.
OVC
I
Port Overcurrent. This is the Schmitt Trigger input signal used to indicate to the AT43301 that there is a power
supply problem with the ports. If OVC is asserted, the AT43301 will de-assert PWR and report the status to the
USB Host.
PWR
O
Power Switch. This is an output signal to enable or disable the external port power switch for the port power
supply. PWR is de-asserted when an overcurrent is detected at OVC.
SELF/BUS
I
Power Mode. Schmitt Trigger input pin to set power mode of hub. If high, the AT43301 works in the self-powered
mode. If low, the bus-powered mode.
STAT
O
Status. Output pin which is asserted by the AT43301 whenever it is enumerated. STAT is de-asserted when the
hub enters the suspend state. An LED in series with a resistor can be connected to this pin to provide visual
feedback to the user.
TEST
I
Test. This pin has an internal pull up and should be left unconnected in the normal operating mode.
VCC
V
5V Power Supply from the USB.
VSS
V
Ground.
NC
-
No Connect. This pin should be left unconnected.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AT43301-SC | Low-cost USB Hub Controller |
| AT43301-SU | Low-cost USB Hub Controller |
| AT43301-AC | Low-cost USB Hub Controller |
| AT43301 | USB HUB CONTROLLER |
| AT43310 | USB Hub |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT43301-SC | 功能描述:USB 接口集成電路 COM TEMP RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| AT43301-SU | 功能描述:USB 接口集成電路 USB FOUR PORT HUB GANGED RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| AT43310 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:USB Hub |
| AT433104AA | 制造商:LINPAC STORAGE SYSTEMS 功能描述:BLUE CONTAINER 25L |
| AT43311 | 制造商:Atmel Corporation 功能描述: |
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