Datasheet

DS1086
Spread-Spectrum EconOscillator
14 ______________________________________________________________________________________
Chip Information
SUBSTRATE CONNECTED TO GROUND
SLAVE
ACK
10 1
1
R/WA0*A1*
SLAVE
ACK
A2*
MSB
LSB
DEVICE IDENTIFIER
DEVICE
ADDRESS
READ/
WRITE
MSB LSB
COMMAND/REGISTER ADDRESS
SLAVE
ACK
MSB LSB
b7 b6 b5 b4 b3 b2 b1 b0
SLAVE
ACK
STOP
*THE ADDRESS DETERMINED BY A0, A1, AND A2 MUST
MATCH THE ADDRESS SET IN THE ADDR REGISTER.
DATA
TYPICAL 2-WIRE WRITE TRANSACTION
EXAMPLE 2-WIRE TRANSACTIONS (WHEN A0, A1, AND A2 ARE ZERO)
A) SINGLE BYTE WRITE
-WRITE OFFSET REGISTER
B) SINGLE BYTE READ
-READ OFFSET REGISTER
C) TWO BYTE WRITE
-WRITE DAC REGISTER
D) TWO BYTE READ
-READ DAC REGISTER
START
START
START
START
START
B0h
B0h
B0h
B0h
SLAVE
ACK
SLAVE
ACK
SLAVE
ACK
SLAVE
ACK
0Eh
0Eh
08h
08h
SLAVE
ACK
SLAVE
ACK
SLAVE
ACK
SLAVE
ACK
DATA
SLAVE
ACK
STOP
OFFSET10110000
10110000
10110000
10110000 10110001
REPEATED
START
SLAVE
ACK
DAC MSB
MASTER
ACK
DAC LSB
DATA
MASTER
NACK
STOP
DATA
B1h
b7 b6 b5 b4 b3 b2 b1 b0
00001110
00001110
00001000
00001000
REPEATED
START
DATA
OFFSET
MASTER
NACK
STOP
SLAVE
ACK
10110001
B1h
STOP
SLAVE
ACK
DAC LSB
DATA
SLAVE
ACK
DAC MSB
DATA
Figure 7. 2-Wire Transactions
Package Information
For the latest package outline information and land patterns
(footprints), go to www.maxim-ic.com/packages
. Note that a
“+”, “#”, or “-” in the package code indicates RoHS status only.
Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE NO.
LAND
PATTERN NO.
8 µSOP U8-1
21-0036
90-0092
8 SO S8-4
21-0041
90-0096