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ISP1581

Universal serial bus 2.0 high-speed interface device

Philips Electronics 

Philips Semiconductors

ISP1581

USB 2.0 HS interface device

Table 2: Pin description for LQFP64 …continued

Symbol[1]

Pin Type[2] Description

WAKEUP

62 I

wake-up input (edge triggered); a LOW-to-HIGH transition

generates a remote wake-up from ‘suspend’ state.

input pad; TTL with hysteresis; with internal pull-down

resistor; 5 V tolerant.

TEST

63 O

test output; this pin is used for test purposes only

VCC(3.3)[3]

64 -

supply voltage (3.3 V ± 0.3 V); supplies internal digital

circuits or it is the tapped out voltage from the internal

regulator; this regulated voltage cannot be used to drive

external devices; see Section 10

[1] Symbol names with an overscore (e.g. NAME) represent active LOW signals.

[2] All outputs and I/O pins can source 4 mA of current.

[3] Add a decoupling capacitor (0.1 µF) to all the supply pins. For better EMI results, add a 0.01 µF

capacitor in parallel to the 0.1 µF.

[4] The DMA bus is in three-state until a DMA command (see Section 9.4.1) is executed.

[5] The control signals are not three-state.

9397 750 09665

Product data

Rev. 04 — 18 July 2002

© Koninklijke Philips Electronics N.V. 2002. All rights reserved.

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