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CAT34TS02_14 Datasheet, PDF (1/21 Pages) ON Semiconductor – Digital Output Temperature Sensor | |||
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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 2âKb 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 openâdrain EVENT pin.
The integrated 2âKb 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) I2C 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
⢠JEDEC JC42.4 Compliant Temperature Sensor
⢠Temperature Range: â20°C to +125°C
⢠DDR3 DIMM Compliant SPD EEPROM
⢠Supply Range: 3.3 V ± 10%
⢠I2C / 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 PbâFree and are RoHS Compliant
VCC
SCL
A2, A1, A0
SDA
CAT34TS02
EVENT
VSS
Figure 1. Functional Symbol
http://onsemi.com
TDFNâ8
VP2 SUFFIX
CASE 511AK
UDFNâ8
HU4 SUFFIX
CASE 517AZ
PIN CONFIGURATION
A0
1
A1
A2
VSS
VCC
EVENT
SCL
SDA
(Top View)
For the location of Pin 1, please consult the
corresponding package drawing.
MARKING DIAGRAM
TDFNâ8
GTX
ALL
YM
G
TSU
ALL
YM
G
UDFNâ8
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 â 9, O, N, D)
G
= PbâFree Package
PIN FUNCTIONS
Pin Name
A0, A1, A2
SDA
SCL
Function
Device Address Input
Serial Data Input/Output
Serial Clock Input
EVENT
Openâdrain Event Output
VCC
VSS
DAP
Power Supply
Ground
Backside Exposed DAP at VSS
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 21 of this data sheet.
© Semiconductor Components Industries, LLC, 2014
1
June, 2014 â Rev. 12
Publication Order Number:
CAT34TS02/D
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