PEB2047 Просмотр технического описания (PDF) - Siemens AG

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Компоненты Описание

производитель

PEB2047

Memory Time Switch Large

Siemens AG 

PEB 2047

PEB 2047-16

Pin Definitions and Functions (cont’d)

Pin No. Symbol

26

AD0

27

AD1

29

AD2

30

AD3

31

AD4

32

AD5

33

AD6

34

AD7

38

OUT0

37

OUT1

43

OUT2

42

OUT3

36

OUT4

35

OUT5

41

OUT6

40

OUT7

44

CLK

2

ALE

6

INT

Input (I)

Output (O)

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

O

O

O

O

O

O

O

O

I

I

(OD)

Function

Address Data Bus: If the multiplexed address/data µP-

interface bus mode is selected these pins transfer data

and addresses between the µP and the MTSL.

If a demultiplexed mode is used, these bits interface with

the system data bus.

PCM-Output Port: Serial data is sent by these lines at

standard CMOS- or TTL levels. These pins can be

tristated.

Clock: 4096-kHz, 8192-kHz or 16 384-kHz device clock.

Address Latch Enable: In the Intel type multiplexed µP-

interface mode a logical high on this line indicates an

address of an MTSL internal register on the external

address/data bus. In the Intel type demultiplexed µP-

interface mode this line is hardwired to VSS, in the

demultiplexed Motorola type µP-interface mode it should

be connected to VDD.

Interrupt Line: Active low open drain output.

Semiconductor Group

8

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