DS1904L-F5# Maxim Integrated Products, DS1904L-F5# Datasheet - Page 3

• Manufacturer Part Number: DS1904L-F5#
• Description: IBUTTON RTC F5 MICROCAN
• Manufacturer: Maxim Integrated Products
• Series: iButton®r

Specifications of DS1904L-F5#

• Rohs Information: IButton RoHS Compliance Plan
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Memory Type: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

HIERARCHICAL STRUCTURE FOR 1-WIRE PROTOCOL Figure 2
64-BIT LASERED ROM Figure 3
1-WIRE CRC GENERATOR Figure 4
X
0
STAGE
MSB
MSB
1ST
Master
Command
Level
8-Bit CRC Code
Bus
X
Commands (see Figure 7)
1
STAGE
1-Wire ROM Function
2ND
DS1904 specific
Function Commands
(see Figure 5)
X
2
STAGE
3RD
LSB
X
3
STAGE
MSB
4TH
Polynomial = X
1-Wire Bus
48-Bit Serial Number
Available
Commands
Read ROM
Match ROM
Search ROM
Skip ROM
Write Clock
Read Clock
DS1904
8
X
4
3 of 13
+ X
STAGE
5TH
5
+ X
4
+ 1
Data Fields
Affected
64-bit ROM
64-bit ROM
64-bit ROM
N/A
RTC Counter, Device Control
RTC Counter, Device Control
LSB
Other
Devices
X
5
STAGE
MSB
6TH
8-Bit Family Code (24h)
R
INPUT DATA
X
6
STAGE
S
7TH
X
7
STAGE
8TH
LSB
LSB
X
8