PSB21911 데이터 시트보기 (PDF) - Infineon Technologies

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PSB21911

ICs for Communications ISDN Echocancellation Circuit for Terminal Applications IEC-Q TE

Infineon Technologies 

PSB 21911

PSF 21911

Pin Definitions and Functions

Pin No.

Symbol

I/O

P-LCC-44 T-QFP64 Stand- µP

alone mode

24

43

GNDd

I

A0

I

SMODE I

25

44

GNDd

I

D7

I/O

AD7

I/O

not used I

33

55

MS0

I

not used I

A3

I

not used

35

58

MS1

I

not used I

A2

I

CDOUT O

Function

GNDd

Must be connected to GNDd in stand-

alone mode.

Address Bus Pin

(Demultiplexed mode)

Serial Mode Pin: SMODE = 1 selects

serial mode, SMODE = 0 enables the

multiplexed mode.

GNDd

Must be connected to GNDd in stand-

alone mode.

Data Bus Pin

(Demultiplexed modes)

Address Data Bus Pin

(Multiplexed mode)

(Serial mode) tie to GND.

Mode Selection 0

refer to table 2 on page 26.

(Multiplexed mode) tie to GND.

Address Bus Pin

(Demultiplexed modes).

(Serial mode) tie to GND.

Mode Selection 1

refer to table 2 on page 26.

(Multiplexed mode) tie to GND.

Address Bus Pin

(Demultiplexed modes).

Controller Data Out

CCLK determines the data rate.

CDOUT is "high Z" if no data is

transmitted.

Semiconductor Group

14

11.97

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