Datasheet

1-Wire 4Kb EEPROM
DS24B33 Tx "1"
Y
N
AUTHORIZATION
CODE MATCH?
BUS MASTER Rx
TA1 (T[7:0]), TA2 (T[15:8]),
AND E/S BYTE
BUS MASTER Tx
TA1 (T[7:0]), TA2 (T[15:8])
55h
COPY SCRATCHPAD?
N
Y
F0h
READ MEMORY?
N
Y
DS24B33 COPIES
SCRATCHPAD DATA
TO ADDRESS
*
*1-Wire IDLE HIGH FOR t
PROG
FOR POWER.
TO FIGURE 7a
FROM FIGURE 7a
BUS MASTER
Rx "1"s
MASTER Tx RESET?
N
Y
MASTER Tx RESET?
MASTER Tx RESET?
N
DS24B33 Tx "0"
Y
N
N
Y
AA = 1
BUS MASTER
Rx "1"s
MASTER Tx RESET?
N
Y
BUS MASTER
Rx "1"s
DS24B33 SETS MEMORY
ADDRESS = (T[15:0])
BUS MASTER Rx
DATA BYTE FROM
MEMORY ADDRESS
Y
N
N
MASTER Tx RESET?
ADDRESS < 1FFh?
N
Y
MASTER Tx RESET?
DS24B33
INCREMENTS
ADDRESS
COUNTER
Y
Figure 7b. Memory Function Flowchart (continued)
Maxim Integrated
11
DS24B33