W6694CD 查看數據表（PDF） - Winbond

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W6694CD

PASSIVE USB-ISDN S/T-CONTROLLER

Winbond 

Preliminary W6694

4. Pin Description, continued

SYMBOL

PIN NO. I/O

FUNCTION

External Serial EEPROM Interface

EPCS

17

O Serial EEPROM chip select.

EPSK

18

O Serial EEPROM data clock.

EPDI

19

I Serial EEPROM data input

EPDO

20

O Serial EEPROM data output

Power and Ground

VDD1,VSS1

47, 44

I ISDN S/T analog power (5V), Ground

VDD21, VSS21

5, 4

I Digital power (5V), Ground

VDD22, VSS22

14, 13

VDD23, VSS23

24, 23

VDDU, VSSU

37, 36

I USB core power (5V), Ground

VDD3

40

O Regulator output (3.3V)

VDD3I

43

I Regulator input (3.3V)

IO Pins

IOP0

26

I/O IO pin capable of driving LED.

IOP1

27

I/O

IOP2

28

I/O

IOP3

29

I/O

IOP4

30

I/O

IOP5

31

I/O

IOP6

32

I/O

IOP7

33

I/O

Others

RESET

25

I External reset. Cause internal circuit reset. Internal 10k

ohm pull-up is provided.

TEST1, TEST2 21, 22

I Test mode enable. Connected to HIGH for normal

operation.

SUSP

34

O USB suspended. Active HIGH

NC

NC

35

No connection. Internal pull-up is provided.

Publication Release Date: October 2000

-7-

Revision A1

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