DS1922T-F5# Maxim Integrated Products, DS1922T-F5# Datasheet - Page 40
DS1922T-F5#
Manufacturer Part Number
DS1922T-F5#
Description
IBUTTON TEMP LOGGER
Manufacturer
Maxim Integrated Products
Series
iButton®r
Datasheet
1.DS1922L-F5.pdf
(52 pages)
Specifications of DS1922T-F5#
Rohs Information
IButton RoHS Compliance Plan
Memory Size
512B
Memory Type
NVSRAM (Non-Volatile SRAM)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Temperature Logger iButton with 8KB
Data-Log Memory
Figure 11b. ROM Functions Flowchart (continued)
40
______________________________________________________________________________________
TO FIGURE 11a
FROM FIGURE 11a
FROM FIGURE 11a
TO FIGURE 11a
NOTE: THE OD FLAG REMAINS AT 1 IF THE DEVICE WAS ALREADY AT OVERDRIVE SPEED BEFORE THE OVERDRIVE-MATCH ROM COMMAND WAS ISSUED.
COMMAND?
SKIP ROM
RC = 0
CCh
Y
N
COMMAND?
RESUME
RC = 1?
A5h
Y
Y
MASTER Tx
RESET?
N
N
N
Y
RC = 0; OD = 1
OVERDRIVE-
SKIP ROM?
MASTER Tx
RESET?
3Ch
Y
N
Y
N
MASTER Tx BIT 63
MASTER Tx BIT 0
MASTER Tx BIT 1
BIT 63 MATCH?
RC = 0; OD = 1
MATCH ROM?
BIT 0 MATCH?
BIT 1 MATCH?
OVERDRIVE-
RC = 1
69h
Y
Y
Y
Y
N
N
N
N
(SEE NOTE)
(SEE NOTE)
(SEE NOTE)
OD = 0
OD = 0
OD = 0
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