DS1921K# Maxim Integrated Products, DS1921K# Datasheet - Page 30

• Manufacturer Part Number: DS1921K#
• Description: KIT IBUTTON THERMOCHRON
• Manufacturer: Maxim Integrated Products
• Series: iButton®r

Specifications of DS1921K#

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Memory Type: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Thermochron iButton
Figure 13b. ROM Functions Flowchart
30
______________________________________________________________________________________
TO FIGURE 13a
FROM FIGURE 13a
FROM FIGURE 13a
TO FIGURE 13a
***ALWAYS TO BE TRANSMITTED AT OVERDRIVE SPEED.
COMMAND?
SKIP ROM
CCh
Y
N
OVERDRIVE-
SKIP ROM?
Tx RESET
MASTER
PULSE?
OD = 1
3Ch
Y
N
Y
N
MASTER Tx BIT 63
MASTER Tx BIT 0
MASTER Tx BIT 1
BIT 63 MATCH?
MATCH ROM?
BIT 0 MATCH?
BIT 1 MATCH?
OVERDRIVE-
OD = 1
69h
Y
Y
Y
Y
N
N
N
***
***
***
N