CAT34TS02_13 Datasheet, PDF (1/20 Pages) ON Semiconductor – Digital Output Temperature Sensor with On-board SPD EEPROM

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 16−byte
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: −20°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
• These Devices are Pb−Free and are RoHS Compliant
V_CC
SCL
A₂, A₁, A₀
SDA
CAT34TS02
EVENT
V_SS
Figure 1. Functional Symbol
http://onsemi.com
TDFN−8
VP2 SUFFIX
CASE 511AK
PIN CONFIGURATION
A₀
1
A₁
A₂
V_SS
V_CC
EVENT
SCL
SDA
(Top View)
For the location of Pin 1, please consult the
corresponding package drawing.
MARKING DIAGRAM
GTX
ALL
YM
G
GTX
A
LL
Y
M
G
= Specific Device Code
= Assembly Location Code
= Assembly Lot Number (Last Two Digits)
= Production Year (Last Digit)
= Production Month (1 − 9, O, N, D)
= Pb−Free Package
PIN FUNCTIONS
Pin Name
Function
A₀, A₁, A₂
SDA
SCL
EVENT
Device Address Input
Serial Data Input/Output
Serial Clock Input
Open−drain Event Output
V_CC
V_SS
DAP
Power Supply
Ground
Backside Exposed DAP at V_SS
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 20 of this data sheet.
© Semiconductor Components Industries, LLC, 2013
1
February, 2013 − Rev. 10
Publication Order Number:
CAT34TS02/D