DS2431 데이터 시트보기 (PDF) - Maxim Integrated

부품명

상세내역

제조사

DS2431

1024-Bit, 1-Wire EEPROM

Maxim Integrated 

1024-Bit, 1-Wire EEPROM

FROM FIGURE 7a

55h

N

COPY SCRATCHPAD?

Y

BUS MASTER Tx

TA1 (T[7:0]), TA2 (T[15:8])

AND E/S BYTE

APPLICABLE TO ALL R/W

MEMORY LOCATIONS.

F0h

N

READ MEMORY?

Y

BUS MASTER Tx

TA1 (T[7:0]), TA2 (T[15:8])

AUTH. CODE

MATCH?

N

BUS MASTER

Rx "1"s

Y

Y

T[15:0] < 0090h?

ADDRESS < 90h?

Y

N

DS2431 SETS MEMORY

N

ADDRESS = (T[15:0])

N

PF = 0?

Y

DS2431

INCREMENTS

ADDRESS

COUNTER

BUS MASTER Rx

DATA BYTE FROM

MEMORY ADDRESS

Y

COPY PROTECTED?

N

Y

MASTER Tx RESET?

BUS MASTER

Rx "1"s

AA = 1

N

DS2431 COPIES

DURATION: tPROG

SCRATCHPAD

*

DATA TO ADDRESS

Y

ADDRESS < 8Fh?

N

N

MASTER Tx RESET?

Y

DS2431 Tx "0"

BUS MASTER

N

Rx "1"s

MASTER Tx RESET?

Y

N

MASTER Tx RESET?

Y

MASTER Tx RESET?

Y

N

DS2431 Tx "1"

TO FIGURE 7a

N

MASTER Tx RESET?

Y

* 1-Wire IDLE HIGH FOR POWER.

Figure 7b. Memory Function Flowchart (continued)

______________________________________________________________________________________ 11

Share Link: