DS2407 datasheet(6/31 Pages) DALLAS

6 / 31 page

DS2407

012099 6/31

DS2407 MEMORY MAP Figure 4

32–BYTE FINAL STORAGE EPROM

PAGE 0

PAGE 1

8–BIT

8 BYTES

STATUS

SCRATCHPAD

STARTING

ADDRESS

0000H

0020H

0040H

0060H

1K BIT

EPROM

PAGE 2

PAGE 3

MEMORY

VALID DEVICE

SETTINGS (SRAM)

POWER–ON

DEFAULT SETTINGS

FACTORY

BYTE

REDIRECITON

BYTES

BIT MAP OF

USED PAGES

WRITE–PROTECT BITS

DATA MEMORY

32–BYTE FINAL STORAGE EPROM

DS2407 STATUS MEMORY MAP Figure 5

ADDRESS

BIT 7

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT 0

0 (EPROM)

BM 3

BM 2

BM 1

BM 0

WP 3

WP 2

WP 1

WP 0

1 (EPROM)

Redir. 0

2 (EPROM)

Redir. 1

3 (EPROM)

Redir. 2

4 (EPROM)

Redir. 3

5 (EPROM)

EPROM factory byte

6 (EPROM

Pwr–On

Status

PIO–B

Pwr–On

Status

PIO–A

Pwr–On

Status

CSS4

Pwr–On

Status

CSS3

Pwr–On

Status

CSS2

Pwr–On

Status

CSS1

Pwr–On

Status

CSS0

7 (SRAM)

Supply

Indication

(read

only)

PIO–B

Channel

Flip–Flop

PIO–A

Channel

Flip–Flop

CSS4

Channel

Select

CSS3

Channel

Select

CSS2

Source

Select

CSS1

Source

Select

CSS0

Polarity

DS2407 Datasheet(PDF) 6 Page - Dallas Semiconductor

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