DS2431P+ Maxim Integrated Products, DS2431P+ Datasheet - Page 14

• Manufacturer Part Number: DS2431P+
• Description: IC EEPROM 1KBIT 6TSOC
• Manufacturer: Maxim Integrated Products

Specifications of DS2431P+

• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Memory Size: 1K (256 x 4)
• Interface: 1-Wire Serial
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 6-TSOC
• Organization: 1 K x 1
• Interface Type: 1-Wire
• Supply Voltage (max): 5.25 V
• Supply Voltage (min): 2.8 V
• Maximum Operating Current: 0.8 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -
• Speed: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

1024-Bit, 1-Wire EEPROM
Figure 9a. ROM Functions Flowchart
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FUNCTION COMMAND
BUS MASTER Tx ROM
SERIAL NUMBER
FAMILY CODE
COMMAND?
READ ROM
DS2431 Tx
DS2431 Tx
DS2431 Tx
CRC BYTE
(6 BYTES)
(1 BYTE)
RC = 0
33h
Y
FROM MEMORY FUNCTIONS
FLOWCHART (FIGURE 7)
N
MASTER Tx BIT 63
MASTER Tx BIT 0
MASTER Tx BIT 1
BIT 63 MATCH?
BIT 0 MATCH?
BIT 1 MATCH?
MATCH ROM
COMMAND?
RC = 0
RC = 1
55h
Y
Y
Y
Y
TO MEMORY FUNCTIONS
FLOWCHART (FIGURE 7)
PRESENCE PULSE
BUS MASTER Tx
RESET PULSE?
RESET PULSE
N
N
N
DS2431 Tx
N
Y
OD
N
N
N
MASTER Tx BIT 63
DS2431 Tx BIT 63
DS2431 Tx BIT 63
MASTER Tx BIT 0
MASTER Tx BIT 1
DS2431 Tx BIT 0
DS2431 Tx BIT 0
DS2431 Tx BIT 1
DS2431 Tx BIT 1
BIT 63 MATCH?
BIT 0 MATCH?
BIT 1 MATCH?
SEARCH ROM
COMMAND?
RC = 0
RC = 1
N
F0h
Y
Y
Y
Y
OD = 0
N
COMMAND?
SKIP ROM
RC = 0
CCh
Y
FROM FIGURE 9b
FROM FIGURE 9b
N
TO FIGURE 9b
TO FIGURE 9b