Maxim Integrated MAXQ Family - Manual (Page 141)

13-12
MAXQ Family User’s Guide
V DD
GND
OWOUT
INITIALIZATION SEQUENCE
OWOUT
V DD
GND
OWIN
V DD
GND
t RSTL t RSTH
t PDH t PDL
t PDS
t WRITE 0 SLOT t WRITE 1 SLOT
t LOW1 >1 µs t LOW0
15 µs 15 µs
SLAVE SAMPLING
15 µs 15 µs
SLAVE SAMPLING
30 µs
30 µs
t READ 0 SLOT t READ 1 SLOT
t RDV
BUS MASTER
SAMPLING
BUS MASTER
SAMPLING
1 µs 1 µs
t RDV
WRITE TIME SLOT
READ TIME SLOT
MASTER ACTIVE LOW
SLAVE ACTIVE LOW
MASTER AND SLAVE ACTIVE LOW
RESISTOR PULLUP
Figure 13-2. 1-Wire Bus Signaling in Standard Mode
Maxim Integrated