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or suitability of its products for any particular purpose, nor does
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onsemi
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or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application
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CAT34TS02
Digital Output Temperature
Sensor with On-board SPD
EEPROM
Description
The CAT34TS02 combines a JC42.4 compliant Temperature Sensor
(TS) with 2−Kb of Serial Presence Detect (SPD) EEPROM.
The TS measures temperature at least 10 times every second.
Temperature readings can be retrieved by the host via the serial
interface, and are compared to high, low and critical trigger limits
stored into internal registers. Over or under limit conditions can be
signaled on the open−drain EVENT pin.
The integrated 2−Kb SPD EEPROM is internally organized as 16
pages of 16 bytes each, for a total of 256 bytes. It features a page write
buffer and supports both the Standard (100 kHz) as well as Fast
(400 kHz) I
2
C protocol.
Write operations to the lower half memory can be inhibited via
software commands. The CAT34TS02 features Permanent, as well as
Reversible Software Write Protection, as defined for DDR3 DIMMs.
Features
http://onsemi.com
TDFN−8
VP2 SUFFIX
CASE 511AK
UDFN−8
HU4 SUFFIX
CASE 517AZ
PIN CONFIGURATION
A
0
A
1
A
2
V
SS
(Top View)
For the location of Pin 1, please consult the
corresponding package drawing.
1
V
CC
EVENT
SCL
SDA
•
•
•
•
•
•
JEDEC JC42.4 Compliant Temperature Sensor
Temperature Range: −20°C to +125°C
DDR3 DIMM Compliant SPD EEPROM
Supply Range: 3.3 V
±
10%
I
2
C / SMBus Interface
Schmitt Triggers and Noise Suppression Filters on SCL and SDA
Inputs
•
Low Power CMOS Technology
•
2 x 3 x 0.75 mm TDFN Package and 2 x 3 x 0.5 mm UDFN Package
•
These Devices are Pb−Free and are RoHS Compliant
V
CC
MARKING DIAGRAM
GTX
ALL
YM
G
TSU
ALL
YM
G
TDFN−8
UDFN−8
GTX, TSU = Specific Device Code
A
= Assembly Location Code
LL
= Assembly Lot Number (Last Two Digits)
Y
= Production Year (Last Digit)
M
= Production Month (1 − 9, O, N, D)
G
= Pb−Free Package
SCL
Pin Name
A
2
, A
1
, A
0
SDA
CAT34TS02
EVENT
A
0
, A
1
, A
2
SDA
SCL
EVENT
V
SS
V
CC
V
SS
DAP
PIN FUNCTIONS
Function
Device Address Input
Serial Data Input/Output
Serial Clock Input
Open−drain Event Output
Power Supply
Ground
Backside Exposed DAP at V
SS
Figure 1. Functional Symbol
ORDERING INFORMATION
See detailed ordering and shipping information in the package
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Industrial Control Electronics
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