DS2433X データシートの表示（PDF） - Dallas Semiconductor -> Maxim Integrated

部品番号

コンポーネント説明

メーカー

DS2433X

4 kbit 1-Wire EEPROM

Dallas Semiconductor -> Maxim Integrated 

MEMORY FUNCTION EXAMPLE

Example: Write two data bytes to memory location 0026 and 0027. Read entire memory.

DS2433

MASTER MODE

TX

RX

TX

TX

TX

TX

TX

TX

RX

TX

TX

RX

RX

RX

RX

TX

RX

TX

TX

TX

TX

TX

TX

TX

RX

TX

TX

TX

TX

RX

TX

RX

DATA (LSB FIRST)

Reset

Presence

CCH

0FH

26H

00H

<2 data bytes>

Reset

Presence

CCH

AAH

26H

00H

07H

<2 data bytes>

Reset

Presence

CCH

55H

26H

00H

07H

<idle or strong pullup>

Reset

Presence

CCH

F0H

00H

00H

<512 bytes>

Reset

Presence

COMMENTS

Reset Pulse (480 - 960 µs)

Presence Pulse

Issue Skip ROM Command

Issue Write Scratchpad command

TA1, beginning offset = 26H

TA2, address = 0026H

Write 2 bytes of data to scratchpad

Reset Pulse

Presence Pulse

Issue Skip ROM Command

Issue Read Scratchpad command

Read TA1, beginning offset = 26H

Read TA2, address = 0026H

Read E/S, ending offset = 7H, flags = 0H

Read scratchpad data and verify

Reset Pulse

Presence Pulse

Issue Skip ROM Command

Issue Copy Scratchpad command

TA1

TA2

AUTHORIZATION CODE

E/S

Wait 5 ms

Reset Pulse

Presence Pulse

Issue Skip ROM Command

Issue Read Memory command

TA1, beginning offset = 0

TA2, address = 0000H

Read entire memory

Reset Pulse

Presence Pulse, done

9 of 19

Share Link: