DS1086L Datasheet, PDF (16/16 Pages) Maxim Integrated Products – 3.3V Spread-Spectrum EconOscillator

3.3V Spread-Spectrum EconOscillator
TYPICAL 2-WIRE WRITE TRANSACTION
MSB
LSB
MSB
LSB
MSB
LSB
START
1
0
1
1
A2*
A1*
A0* R/W
SLAVE
ACK
b7
b6
b5
b4 b3
b2
b1
b0
SLAVE
ACK
b7
b6
b5
b4 b3
b2
b1 b0
SLAVE
ACK
STOP
DEVICE IDENTIFIER
DEVICE READ/
COMMAND/REGISTER ADDRESS
DATA
ADDRESS WRITE
EXAMPLE 2-WIRE TRANSACTIONS (WHEN A0, A1, AND A2 ARE ZERO)
B0h
0Eh
A) SINGLE BYTE WRITE
-WRITE OFFSET REGISTER
START 1 0 1 1 0 0 0 0
SLAVE
ACK
00001110
SLAVE
ACK
DATA
OFFSET
SLAVE
ACK
STOP
B) SINGLE BYTE READ
-READ OFFSET REGISTER
B0h
0Eh
B1h
START 1 0 1 1 0 0 0 0
SLAVE
ACK
00001110
SLAVE
ACK
REPEATED
START
10110001
SLAVE
ACK
DATA
OFFSET
MASTER
NACK
STOP
C) TWO BYTE WRITE
-WRITE DAC REGISTER
B0h
08h
START
10110000
SLAVE
ACK
00001000
SLAVE
ACK
DATA
DAC MSB
SLAVE
ACK
DATA
DAC LSB
SLAVE
ACK
STOP
D) TWO BYTE READ
-READ DAC REGISTER
B0h
08h
B1h
START
10110000
SLAVE
ACK
00001000
SLAVE
ACK
REPEATED
START
10110001
SLAVE
ACK
DATA
DAC MSB
MASTER
ACK
DATA
DAC LSB
MASTER
NACK
STOP
*THE ADDRESS DETERMINED BY A0, A1, AND A2 MUST
MATCH THE ADDRESS SET IN THE ADDR REGISTER.
Figure 7. 2-Wire Transactions
Chip Topology
TRANSISTOR COUNT: 9052
SUBSTRATE CONNECTED TO GROUND
Package Information
For the latest package outline information, go to
www.maxim-ic.com/DallasPackInfo.
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2002 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.