DS2431+ Maxim Integrated Products, DS2431+ Datasheet - Page 14
![IC EEPROM 1KBIT TO92-3](/photos/6/93/69353/406-to-92_sml.jpg)
DS2431+
Manufacturer Part Number
DS2431+
Description
IC EEPROM 1KBIT TO92-3
Manufacturer
Maxim Integrated Products
Datasheet
1.DS2431X-S.pdf
(26 pages)
Specifications of DS2431+
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
TO-92-3 (Standard Body), TO-226
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
Through Hole
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
14
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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