ISP1507BBS ST-Ericsson Inc, ISP1507BBS Datasheet - Page 23

• Manufacturer Part Number: ISP1507BBS
• Description: IC, TRANSCEIVER, USB OTG, 32HVQFN
• Manufacturer: ST-Ericsson Inc

Specifications of ISP1507BBS

• Usb Type: USB Transceiver
• Usb Version: 2.0
• Data Rate: 12Mbps
• No. Of Ports: 1
• Supply Voltage Range: 3V To 3.6V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: QFN
• No. Of Pins: 32
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

CD00222689
Product data sheet
Fig 6.
DATA[7:0]
REG1V8
REG1V8
V
detector
internal
CLOCK
internal
CC(I/O)
XTAL1
POR
V
NXT
STP
DIR
CC
t1 = V
t2 = ULPI pads detect REG1V8 rising above the REG1V8 regulator threshold and are not in 3-state. These pads may drive
either LOW or HIGH. It is recommended that the link ignores the ULPI pins status during t
t3 = The POR threshold is reached and a POR pulse is generated. After the POR pulse, ULPI pins are driven to a defined level.
DIR is driven to HIGH and the other pins are driven to LOW.
t4 = The ISP1507 regulator is powered up and is stable.
t5 = The internal PLL is stabilized after t
be stabilized after t
The DIR pin will remain LOW before the link issues a RESET command to the ISP1507.
t6 = The power-up sequence is completed and the ULPI bus interface is ready for use.
Power-up and reset sequence required before the ULPI bus is ready for use
CC
9.3.1 Interface protection
and V
CC(I/O)
t1
By default, the ISP1507 enables a weak pull-up resistor on STP. If the STP pin is
unexpectedly HIGH at any time, the ISP1507 will protect the ULPI interface by enabling
weak pull-down resistors on DATA[7:0].
startup(PLL)
are applied to the ISP1507. The ISP1507 regulator starts to turn on.
t2
t
REGUP
from POR. The CLOCK pin starts to output 60 MHz. The DIR pin will transition from HIGH to LOW.
t3
startup(PLL)
t4
t
startup(PLL)
Rev. 04 — 20 May 2010
. If the 19.2 MHz or 26 MHz clock is started before POR, the internal PLL will
t5
internal clocks stable
RESET command
TXCMD
D
ISP1507A; ISP1507B
internal reset
ULPI HS USB OTG transceiver
REGUP
.
© ST-ERICSSON 2010. All rights reserved.
RXCMD
update
004aaa885
bus idle
t6
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