DS2431GA+U Maxim Integrated, DS2431GA+U Datasheet - Page 11

• Manufacturer Part Number: DS2431GA+U
• Description: EEPROM 1024-BIT 1-W EEPROM 6.5X3.5
• Manufacturer: Maxim Integrated

Specifications of DS2431GA+U

• Rohs: yes
• Memory Size: 1024 bit
• Organization: 4 pages x 256 K
• Data Retention: 40 yr
• Maximum Operating Current: 0.8 mA
• Operating Supply Voltage: 2.8 V to 5.25 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SFN-2
• Part # Aliases: 90-2431G+A00

Figure 7b. Memory Function Flowchart (continued)
Maxim Integrated
FROM FIGURE 7a
TO FIGURE 7a
TA1 (T[7:0]), TA2 (T[15:8])
COPY SCRATCHPAD?
MASTER Tx RESET?
BUS MASTER Tx
AND E/S BYTE
BUS MASTER
AUTH. CODE
MATCH?
Rx "1"s
N
55h
Y
Y
N
Y
N
DURATION: t
APPLICABLE TO ALL R/W
MEMORY LOCATIONS.
T[15:0] < 0090h?
N
PROG
N
Y
Y
* 1-Wire IDLE HIGH FOR POWER.
COPY PROTECTED?
DATA TO ADDRESS
MASTER Tx RESET?
MASTER Tx RESET?
DS2431 COPIES
SCRATCHPAD
DS2431 Tx "0"
DS2431 Tx "1"
PF = 0?
Y
AA = 1
Y
N
N
Y
TA1 (T[7:0]), TA2 (T[15:8])
1024-Bit, 1-Wire EEPROM
READ MEMORY?
ADDRESS < 90h?
BUS MASTER Tx
*
N
N
F0h
Y
INCREMENTS
BUS MASTER
COUNTER
ADDRESS
DS2431
Rx "1"s
N
Y
N
Y
DS2431 SETS MEMORY
ADDRESS = (T[15:0])
MEMORY ADDRESS
MASTER Tx RESET?
MASTER Tx RESET?
DATA BYTE FROM
ADDRESS < 8Fh?
BUS MASTER Rx
N
N
Y
Y
N
DS2431
MASTER Tx RESET?
BUS MASTER
Rx "1"s
Y
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