ISP1183 Просмотр технического описания (PDF) - Philips Electronics

Номер в каталоге

Компоненты Описание

производитель

ISP1183

Low-power Universal Serial Bus interface device with DMA

Philips Electronics 

Philips Semiconductors

ISP1183

Low-power USB interface device with DMA

Table 2: Pin description…continued

Symbol[1]

Pin

Type Description

VBUS

8

I

VBUS sensing input and power supply input; see

Section 8.11

DM

9

AI/O USB D− line connection (analog)

DP

10

AI/O USB D+ line connection (analog)

AGND

11

-

analog ground supply

VREG(3V3)

12

-

regulated supply voltage (3.3 V ± 10 %) from internal

regulator; used to connect a 0.1 µF decoupling capacitor

and pull-up resistor on pin DP

Remark: Cannot be used to supply external devices.

VBUSDET_N 13

DREQ

14

O VBUS indicator output (active LOW); see Table 3

O DMA request output (4 mA; programmable polarity, see

Table 21); signals to the DMA controller that the ISP1183

wants to start a DMA transfer

3.3 V tolerant I/O pad

DACK

15

I

DMA acknowledge input (programmable polarity, see

Table 21); used by the DMA controller to signal the start of a

DMA transfer requested by the ISP1183; when not in use,

connect this pin to ground through a 10 kΩ resistor

3.3 V tolerant I/O pad

RESET_N 16

I

reset input (Schmitt trigger); a LOW level produces an

asynchronous reset

3.3 V tolerant I/O pad

A0

17

I

address input; selects command (A0 = HIGH) or data

(A0 = LOW)

3.3 V tolerant I/O pad

VDD(I/O)

18

-

I/O power supply; add a decoupling capacitor of 0.1 µF

(1.65 V to 3.6 V); see Section 8.11

DATA0

19

I/O data bit 0 input and output

bidirectional (4 mA), 3.3 V tolerant I/O pad

DATA1

20

I/O data bit 1 input and output

bidirectional (4 mA), 3.3 V tolerant I/O pad

VDD

21

-

3.3 V output voltage; internally connected to the regulator

output; connect to a decoupling capacitor of 0.1 µF

DGND

22

digital ground supply

DATA2

23

I/O data bit 2 input and output

bidirectional (4 mA), 3.3 V tolerant I/O pad

DATA3

24

I/O data bit 3 input and output

bidirectional (4 mA), 3.3 V tolerant I/O pad

DGND

25

-

digital ground supply

DATA4

26

I/O data bit 4 input and output

bidirectional (4 mA), 3.3 V tolerant I/O pad

DATA5

27

I/O data bit 5 input and output

bidirectional (4 mA), 3.3 V tolerant I/O pad

9397 750 11804

Product data

Rev. 01 — 24 February 2004

© Koninklijke Philips Electronics N.V. 2004. All rights reserved.

6 of 62

Share Link: