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PDF OXU140CM Data sheet ( Hoja de datos )
| Número de pieza | OXU140CM | |
| Descripción | USB On-The-Go Full Speed Host | |
| Fabricantes | Oxford Semiconductor | |
| Logotipo |  |
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Data Sheet
OXU140CM
USB On-The-Go Full Speed Host, High Speed Peripheral
with Multi-Storage Interface
Features
Single‐chip USB OTG full‐speed host and high‐speed peripheral
controller
Reduces system cost and board space
Minimizes system design complexity and power
Simultaneous USB host, peripheral, and
CE‐ATA/MMC/SD interface operation
USB peripheral to CE‐ATA/MMC/SD bridging
Compatible with the USB 2.0 and OTG specifications
CE‐ATA 1.1 command support with built‐in flow control
MMC 4.1 compatible
Configurable 1‐/4‐/8‐bit data bus at up to 48 MHz clock
frequency
Dual‐voltage (3.3 V and 1.8 V) I/O support
Integrated smart clock control for reduced power
consumption
3.3 V power supply, flexible I/O voltage of 1.65 V to 3.6 V
(LVCMOS/TTL) to interface to a wide range of MCUs
Low‐power sleep mode to minimize power consumption when
not in use
Integrated on‐chip charge pump, supports up to 100 mA of
current, enables support for broad range of USB devices
Packaging
8 × 8 mm BGA, 100 ball, RoHS compliant
14 × 14 mm LQFP, 128 pin, RoHS compliant
16‐bit memory mapped interface can gluelessly interface to most
popular microprocessors and DSPs
Fast microprocessor access cycle and double/multi buffering
support for all four types of USB transfers
Two DMA (slave) channel support for peripheral controller and
CE‐ATA/MMC/SD controller lowers CPU utilization
Integrated PLL supports external crystal or crystal oscillators of
12 MHz or 30 MHz, for system flexibility
DS-0038 Jul 06
External--Free Release
1
1 page  
Oxford Semiconductor, Inc.
OXU140CM Data Sheet
Electrical
Characteristics
Note:
Tables 1 to 11 detail the required operating conditions for the device and
the DC and AC electrical characteristics.
Table 1 Absolute Maximum Device Ratings
Symbol
VDD3.3
VDD1.8
VDDW
VI
TS
Parameter
3.3 V power supply
1.8 V power supply
1.8 V to 3.3 V
wide-range I/O power supply
DC input voltage
Storage temperature
Min Max Unit
-0.3 4.0 V
-0.3 2.16 V
-0.3 4.0 V
-0.3 4.0 V
-40 +150 °C
Permanent device damage may occur if absolute maximum ratings are exceeded. Functional opera‐
tion should be restricted to the normal operating conditions specified in the following section. Expo‐
sure to absolute maximum rating conditions for extended periods may affect device reliability.
Table 2 Recommended Operating Conditions
Symbol
VDD3.3
VDD1.8
VDDW
VI3.3
VIW
TO
Parameter
3.3 V power supply
1.8 V power supply
1.8 to 3.3 V
wide-range I/O power supply
DC input voltage of 3.3 V pins
DC input voltage of wide-range pins
Operating temperature
Min Max Unit
2.97 3.63
V
1.62 1.98
V
1.62 3.63
V
0 3.6 V
0
1.1*VDDW
V
-40 +85 °C
Table 3 DC Characteristics, Full-Speed USB I/O Signals: DPN, DMN
Symbol
Parameter
Condition
VDI
VCM
VOL
VOH
VCRS
CIN
Differential input sensitivity
Differential comm. mode range
Static output low
Static output high
Output signal crossover
Input capacitance
|VI(DPN) -- VI(DMN)| (where N = 1 or 2)
Min
0.2
0.8
0.0
2.8
1.3
Max Unit
V
2.5 V
0.3 V
3.6 V
2.0 V
20 pF
DS-0038 Jul 06
External--Free Release
5
5 Page 
Oxford Semiconductor, Inc.
OXU140CM Data Sheet
Table 13 OXU140CM 128-Pin LQFP Pin Allocations (Sheet 2 of 3)
Pin No. Type(1)
Pins
Name
Description
101, 98
2B
DM2, DP2
Data lines for Host Port 2, a dedicated USB host
port. If not used, these two pins should be left floating
60
1B
RREF
93
1 5I
VBUS
Connect external reference resistor (12 KΩ +/- 1%)
to VSSA
VBUS input used by the voltage comparators of the
OTG port for connection. This pin should be left
floating in a host-only application
79
1O
VBP
VBUS pulsing control. This pin is used only when Port
1 is an OTG port for a B-DEVICE.
78
1O
/EXVBO
Turn on/off the external VBUS (5 V) for OTG
operation (1:VBUS off, 0: VBUS on) when using the
external charge pump
77
1 IU
/OC
Over current condition indicator for powered host
ports
81
1 IU
ID
Connected to the ID pin of the mini-AB connector for
OTG applications. With the help of an internal pull-up
resistor, this pin determines the chip’s responsibility
in an OTG application (0: A-device, 1:B-device)
80
1O
/PO
Turn on/off gang power for all host ports
Clock Interface (3 pins)
82
1I
CLKCFG
The state of this pin is used to indicate whether a 12
MHz or a 30 MHz crystal/oscillator is being used.
CLKCFG -- Frequency
0--12-MHz crystal; 12-MHz 3.3 V oscillator input on
OSC1
1--30-MHz crystal; 30-MHz 3.3 V oscillator input on
OSC1
64
1I
OSC1
63
1O
OSC2
A 12-MHz or 30-MHz passive crystal should be
connected across the two pins. Optionally, a 12 MHz
or 30-MHz oscillator can be connected to OSC1
while keeping OSC2 unconnected
MMC/CE-ATA (13 pins)
25
1 MO
CECLK
SD/MMC/CE-ATA CLK output (0-48 MHz)
26 1 MBUS CECMD
SD/MMC/CE-ATA CMD
37, 36, 35, 32, 31, 8
30, 29, 27
MBUS
CEDAT[7:0]
SD/MMC/CE-ATA 1,4 or 8-bit data bus
67
1O
/CE3P3V_EN
On/off control for MMC 3.3 V interface power
103
1O
/CE1P8V_EN
On/off control for MMC 1.8 V interface power
74
1O
/CEMOT_EN
On/off control for HDD motor power
Internal VBUS Charge Pump (3 pins)
87
1O
PD_PMOS
Internal charge pump output for P-MOSFET (optional
switch on the VOUT)
92
1O
EXT
Internal charge pump output for N-MOSFET
86
1I
VOUT
Internal charge pump output voltage feedback pin
DS-0038 Jul 06
External--Free Release
11
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet OXU140CM.PDF ] | |
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