PEF2091 Siemens Semiconductor Group, PEF2091 Datasheet - Page 21

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PEF2091

Manufacturer Part Number

PEF2091

Description

ICs for Communications(ISDN Echocancellation Circuit)

Manufacturer

Siemens Semiconductor Group

Datasheet

1.PEF2091.pdf (298 pages)

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1.3

Figure 1

Semiconductor Group

Interface

IOM

*) FSC and DCL are

**) Crystal or external clock on XIN

inputs in the IOM

and

outputs from the IOM

®

Clock

-2

Logic Symbol for µP Mode

Logic Symbol for µP Mode

®

-2 Slave mode

CLS

DCL*

FSC*

DOUT

DIN

®

AD0-AD7

PMODE

-2 Master mode

+5V

RES

Reset

ALE

RD

PEB 2091

parallel / serial

Siemens or Motorola

µP interface

WR

µP Mode

IEC-Q

GND VDD

0V

21

CS

+5V

INT

MCLK

XIN

SMODE

15.36 MHz **)

XOUT

AOUT

BOUT

PS1

PS2

RST

AIN

BIN

Data Sheet 01.99

PEB 2091

PEF 2091

Overview

Interface

Control

Supply

Power

U

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