W6694 Просмотр технического описания (PDF) - Winbond

Номер в каталоге

Компоненты Описание

Список матч

W6694

PASSIVE USB-ISDN S/T-CONTROLLER

Winbond 

Preliminary W6694

4. PIN DESCRIPTION

Table 4.1 W6694 Pin Descriptions

SYMBOL

D+

D-

PIN NO. I/O

USB Bus

38

I/O USB D+ data line.

39

I/O USB D- data line.

FUNCTION

UCLK1

UCLK2

SR1

SR2

SX1

SX2

XTAL1

XTAL2

GCIDCL

GCIFSC

GCIDD

GCIDU

PFCK1

PFCK2

PBCK

PTXD

PRXD

41

I 24 MHz crystal/oscillator clock input.

42

O 24 MHz crystal clock output. Left unconnected if use

oscillator.

ISDN Signals and External Crystal

45

I S/T bus receiver input (-). This is normal polarity. Reverse

polarity is also OK.

46

I S/T bus receiver input (+).

48

O S/T bus transmitter output(+).

1

O S/T bus transmitter output(-).

2

I Crystal or Oscillator clock input. The clock frequency: 7.68

MHz ±100 PPM.

3

O Crystal clock output. Left unconnected when using

oscillator.

GCI Bus

6

I GCI bus data clock 1.536 MHz.

7

I GCI bus frame synchronization clock.

8

I GCI bus data downstream. (input)

9

O GCI bus data upstream. (output)

PCM Bus

10

O PCM port 1 frame synchronization signal with 8 KHz

repetition rate and 8 bit pulse width

11

O PCM port 2 frame synchronization signal with 8 KHz

repetition rate and 8 bit pulse width

12

O PCM bit clock of 1.536 MHz.

15

O PCM data output.

16

I PCM data input.

-6-

Share Link: