CAT34TS04: Digital Output Temperature Sensor with On-board SPD EEPROM
Description: The CAT34TS04 is a combination Temperature Sensor ...
The CAT34TS04 is a combination Temperature Sensor (TS) and 4-Kb of Serial Presence Detect (SPD) EEPROM, which implements the JEDEC TSE2004av DDR4 specification. 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 4-Kb memory is partitioned into two individually addressable 2-Kb banks (referred to as SPD pages in the TSE2004av specification). Each bank contains two 1-Kb blocks, which can be Write Protected via Reversible Software Write Protect (RSWP) commands. The SPD EEPROM features a 16-byte wide write buffer and supports the Standard (100 kHz), Fast (400 kHz) and Fast Plus (1 MHz) I2C protocols.
JEDEC TSE2004av Compliant Temperature Sensor
Temperature Range: -20°C to 125°C
DDR4 DIMM Compliant SPD EEPROM
Supply Range: 1.7 V - 5.5 V (SPD EEPROM) and 2.2 V - 5.5 V (TS)
I2C / SMBus Interface
Schmitt Triggers and Noise Suppression Filters on SCL and SDA Inputs
16-Byte Page Write Buffer
Low Power CMOS Technology
Thermal Management and SPD for DDR4 Memory Modules
High-speed PCs, laptops, DDR4
Telecom equipment & base stations
Environmental control systems
Process control equipment
Technical Documentation & Design Resources