Q67100-H6412 datasheet(11/240 Pages) SIEMENS

Part #	Q67100-H6412

Description	ISDN Subscriber Access Controller for Terminals

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Manufacturer	SIEMENS [Siemens Semiconductor Group]

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Semiconductor Group

11

Features

1.1

Pin Definitions and Functions

Pin No.

P-DIP-40

Pin No.

P-MQFP-64

Pin No.

P-LCC-44

Symbol

Input (I)

Output (O)

Open

Drain (OD)

Function

37

38

39

40

1

2

3

4

37

38

39

40

41

42

43

44

41

42

43

44

1

2

3

4

AD0/D0

AD1/D1

AD2/D2

AD3/D3

AD4/D4

AD5/D5

AD6/D6

AD7/D7

I/O

Multiplexed Bus Mode:

Address/data bus transfers

addresses from the

µP system

to the ISAC-S TE and data

between the

µP system and

the ISAC-S TE.

Non-Multiplexed Bus Mode:

Data bus. Transfers data

between the

µP system and

the ISAC-S TE.

34

27

37

CS

I

Chip Select: A “Low“ on this

line selects the ISAC-S TE for

a read/write operation.

–

35

28

38

R/W

WR

I

Read/Write: When “High”

identifies a valid

µP access as

a read operation. When “Low”,

identifies a valid

µP access as

a write operation (Motorola

bus mode).

Write: This signal indicates a

write operation (Intel bus

mode).

–

36

29

39

DS

RD

I

Data Strobe: The rising edge

marks the end of a valid read

or write operation (Motorola

bus mode).

Read: This signal indicates a

read operation (Intel bus

mode).

20

8

23

INT

OD

Interrupt Request: The signal

is activated when the ISAC-S

TE requests an interrupt. It is

an open drain output.

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