isp1504a1 NXP Semiconductors, isp1504a1 Datasheet - Page 12

• Manufacturer Part Number: isp1504a1
• Description: Isp1504a1; Isp1504c1 Ulpi Hi-speed Universal Serial Bus On-the-go Transceiver
• Manufacturer: NXP Semiconductors

NXP Semiconductors
ISP1504A1_ISP1504C1_1
Product data sheet
7.9.10 REG3V3 and REG1V8
7.9.11 XTAL1 and XTAL2
7.9.12 RESET_N
Table 3.
Regulator output voltage. These supplies are used to power the ISP1504x1 internal digital
and analog circuits, and must not be used to power external circuits.
For correct operation of the regulator, it is recommended that you connect REG3V3 and
REG1V8 to a 0.1 F capacitor in parallel with a 4.7 F capacitor. For examples, see
Section
XTAL1 is the crystal input, and XTAL2 is the crystal output. The allowed frequency on the
XTAL1 pin is 19.2 MHz or 26 MHz.
Either a crystal must be attached, or a clock of the same frequency must be driven into
XTAL1, with XTAL2 left floating.
If a crystal is attached, it requires capacitors to GND on each terminal of the crystal. For
details, see
An active LOW asynchronous reset pin that resets all circuits in the ISP1504x1. The
RESET_N pin must be connected to V
internal power-on reset circuit, and therefore using the RESET_N pin is optional.
For details on using RESET_N, see
Application
OTG
Standard host
Standard peripheral
Fig 3. Application circuit components
15.
Recommended V
Section
15.
Rev. 01 — 6 August 2007
V
comparators
BUS
BUS
capacitor value
R UP(VBUS)
R DN(VBUS)
DISCHRG_
VBUS
CHRG_VBUS
Section
V
1 F to 6.5 F, 10 V
120 F
1 F to 10 F, 10 V
CC(I/O)
BUS
ISP1504A1; ISP1504C1
capacitor (C
, if not used. The ISP1504x1 contains an
9.3.2.
20 %, 10 V
R I(idle)(VBUS)
004aaa871
VBUS
ULPI HS USB OTG transceiver
)
REG3V3
V
BUS
© NXP B.V. 2007. All rights reserved.
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