參數(shù)資料
型號(hào): AT43301-SC
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, PDSO24
封裝: 0.300 INCH, PLASTIC, SOIC-24
文件頁(yè)數(shù): 1/27頁(yè)
文件大小: 206K
代理商: AT43301-SC
Features
Full Compliance with USB Spec Rev 1.1
Four Downstream Ports
Full-speed and Low-speed Data Transfers
Bus-powered Controller
Bus-powered or Self-powered Hub Operation
Port Overcurrent Monitoring
Port Power Switching
5V Operation with On-chip 3.3V Regulator
24-lead SOIC and 32-lead LQFP
1.
The AT43301 is a 5-port USB hub chip supporting one upstream and four down-
stream ports. The AT43301 connects to an upstream hub or host/root hub via Port0,
while the other ports connect to external downstream USB devices. The hub re-trans-
mits the USB differential signal between Port0 and Ports[1:4] in both directions. The
AT43301 is designed for very low-cost bus-powered or self-powered hub applications
and is available in a 24-lead SOIC and a 32-lead LQFP packages. The 32-lead ver-
sion of the AT43301, the AT43301-AC, has a 48 MHz clock input.
Description
The AT43301 supports the 12 Mb/s full speed as well as 1.5 Mb/s slow speed USB
transactions. To reduce EMI, the AT43301’s oscillator frequency is 6 MHz even
though some internal circuitry operates at 48 MHz.
Figure 1-1.
Pin Configurations
24-lead SOIC Top View
32-lead LQFP Top View
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
VCC
VSS
CEXT1
OSC1
OSC2
LFT
STAT
PWR
OVC
LPSTAT
TEST
SELF/BUS
NC
DP4
DM4
DP3
DM3
DP2
DM2
DP1
DM1
DP0
DM0
VSS
AT43301-SC
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
NC
DM4
DP4
48
VCC
VSS
CEXT1
NC
NC
DP0
DM0
VSS
NC
SELF/BUS
TEST
LPSTAT
3
3
3
2
2
2
2
2
9
1
1
1
1
1
1
1
V
O
O
L
S
P
N
O
N
D
D
D
D
D
D
N
AT43301-AC
Low-cost USB
Hub Controller
AT43301
1137J–USB–01/06
相關(guān)PDF資料
PDF描述
AT43301-SU Low-cost USB Hub Controller
AT43301-AC Low-cost USB Hub Controller
AT43301 USB HUB CONTROLLER
AT43310 USB Hub
AT43311 USB Hub
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