CAT34TS02 Datasheet, PDF (13/22 Pages) ON Semiconductor – Digital Output Temperature Sensor with On-board SPD EEPROM

CAT34TS02
Table 2. SWP Commands
Action
Control Pin
Levels⁽¹⁾
A2
A1
A0
Flag State⁽²⁾
PSWP RSWP
A2
A1
A0
1
X
Set
PSWP
A2
A1
A0
0
X
A2
A1
A0
0
X
GND GND VHV
1
X
Set
GND GND VHV
0
1
RSWP _{GND GND VHV}
0
0
GND GND VHV
0
0
GND VCC VHV
1
X
Clear
RSWP
GND
VCC
VHV
0
X
GND VCC VHV
0
X
Slave Address
ACK Address ACK Data ACK Write
b7 to
b4
b3 b2 b1 b0
?
Byte
? Byte ? Cycle
A2 A1 A0 X No
A2 A1 A0 0 Yes
X
Yes X Yes Yes
A2 A1 A0 1 Yes
0 0 1 X No
0 0 1 X No
0110
0 0 1 0 Yes
X
Yes X Yes Yes
0 0 1 1 Yes
0 1 1 X No
0 1 1 0 Yes
X
Yes X Yes Yes
0 1 1 1 Yes
Figure 12. Software Write Protect (Write)
S
T
BUS ACTIVITY: ^A
MASTER ^R
T
SDA LINE S
SLAVE
SLAVE
ADDRESS
BYTE
ADDRESS
S
T
DATA
O
P
XXXXXXXX XXXXXXXX P
A
A
C
C
K
K
X = Don't Care
AN
C or O
KA
C
K
Figure 13. Software Write Protect (Read)
BUS ACTIVITY: ^S
T
A
MASTER R
T
SDA LINE S
SLAVE
S
SLAVE
T
ADDRESS ^O
P
P
AN
C or O
KA
C
K
Notes:
(1) Here A2, A1 and A0 are either at VCC or GND.
(2) 1 stands for ‘Set’, 0 stands for ‘Not Set’, X stands for ‘don’t care’.
© 2010 SCILLC. All rights reserved.
13
Characteristics subject to change without notice
Doc. No. MD-1129 Rev. G