Overview
The CAT34TS02VP2GT4C, produced by Onsemi, is a digital output temperature sensor that integrates a JEDEC JC42.4 compliant temperature sensor with 2-Kb of Serial Presence Detect (SPD) EEPROM. This device is designed to measure temperature at least 10 times every second and can retrieve temperature readings via a serial interface. It also features an open-drain EVENT pin to signal over or under temperature limit conditions. The device supports both Standard (100 kHz) and Fast (400 kHz) I2C protocols and is compliant with DDR3 DIMM specifications.
Key Specifications
| Parameter | Min | Max | Units |
|---|---|---|---|
| Operating Temperature | −45 | +130 | °C |
| Storage Temperature | −65 | +150 | °C |
| Voltage on any pin (except A0) | −0.5 | +6.5 | V |
| Voltage on pin A0 | −0.5 | +10.5 | V |
| Supply Voltage (VCC) | 3.3 V ± 10% | V | |
| Temperature Reading Error | ±3.0 (sensing range) | °C | |
| ADC Resolution | 12 Bits | ||
| Temperature Resolution | 0.0625 °C | ||
| Conversion Time | 100 ms | ||
| Thermal Resistance (JA) | 92 °C/W | ||
| Supply Current (ICC) | 500 | μA | |
| Standby Current (ISHDN) | 10 | μA | |
| Clock Frequency (FSCL) | 10 kHz | 400 kHz | |
| SDA and SCL Rise Time (tR) | 300 ns | ||
| SDA and SCL Fall Time (tF) | 300 ns |
Key Features
- JEDEC JC42.4 Compliant Temperature Sensor
- Temperature Range: −20°C to +125°C
- DDR3 DIMM Compliant SPD EEPROM
- 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
- Pb-Free and RoHS Compliant
- Permanent and Reversible Software Write Protection
- Open-drain EVENT pin for temperature limit signaling
Applications
The CAT34TS02VP2GT4C is suitable for various applications requiring precise temperature monitoring and data storage, such as:
- Server and storage systems
- Networking equipment
- Industrial control systems
- Aerospace and defense systems
- Automotive systems requiring temperature monitoring
Q & A
- What is the temperature range of the CAT34TS02VP2GT4C?
The temperature range is −20°C to +125°C. - What is the resolution of the temperature sensor?
The temperature resolution is 0.0625 °C. - What is the ADC resolution of the device?
The ADC resolution is 12 bits. - What are the supported communication protocols?
The device supports I2C and SMBus protocols. - What is the purpose of the EVENT pin?
The EVENT pin is used to signal over or under temperature limit conditions. - What is the maximum clock frequency for the I2C interface?
The maximum clock frequency is 400 kHz. - Is the device Pb-Free and RoHS compliant?
Yes, the device is Pb-Free and RoHS compliant. - What is the typical supply current of the device?
The typical supply current is 500 μA. - How many write cycles can the EEPROM endure?
The EEPROM can endure up to 1,000,000 write cycles. - What is the data retention period of the EEPROM?
The data retention period is 100 years.
