TSE2004GB2C0 Datasheet, PDF (1/38 Pages) Integrated Device Technology – DDR4 Temperature Sensor with Integrated 4Kbit EEPROM for Memory Module

DDR4 Temperature Sensor with
Integrated 4Kbit EEPROM for Memory Module
TSE2004GB2C0
Datasheet
Description
The TSE2004GB2C0 digital temperature sensor comes with
several user-programmable registers to provide maximum
flexibility for temperature-sensing applications. The user-
programmable registers specify critical, upper and lower
temperature limits, as well as hysteresis settings. Both the limits
and hysteresis values are used for communicating temperature
events from the chip to the system. This communication is done
using the EVENT_n pin, which has an open-drain configuration.
The user has the option of setting the EVENT_n pin polarity as
either an active-low or active-high comparator output for
thermostat operation, or as a temperature event interrupt output
for microprocessor-based systems.
The sensor uses an industry standard 2-wire, I²C/SMBus serial
interface, and allows up to eight devices to be controlled on the
bus.
The 4Kbit (512 bytes) Serial EEPROM memory in the part is
organized as two pages of 256 bytes each, or 512 bytes of total
memory. Each page is comprised of two 128 byte blocks. The device
is able to selectively lock the data in any or all of the four 128 byte
blocks.
Typical Applications
▪ DIMM modules (DDR3, DDR4)
▪ Servers, laptops, ultra-portables, PCs, etc.
▪ Industrial temperature monitors
▪ Hard disk drives and other PC peripherals
Figure 1. Memory Module Temperature Sensor
Application
Memory
Module
CPU
Chipset
(for memory
throttling)
EVVEENNTT_#n
SMBus
DRAMs
Temperature
sensor and
EEPROM
Features
▪ Temperature Sensor plus a 512 byte Serial EEPROM
▪ A 512 byte Serial EEPROM for SPD
▪ Single supply: 2.2V to 3.6V
▪ Accurate timeout support:
— Meets strict SMBus specifications for: 25ms (minimum),
35ms (maximum)
▪ Timeout supported for Temperature Sensor and EEPROM
▪ Timeout supported in all modes:
— Active mode for Temperature Sensor and EEPROM
— EEPROM in standby, or Temperature Sensor in shutdown
— EEPROM in standby, and Temperature Sensor in shutdown
▪ Schmitt trigger and noise filtering on bus inputs
▪ A 2-wire serial interface: 10kHz to 1MHz (maximum)
I²C™/ SMBus™
▪ Available package: TDFN-8
Temperature Sensor Features
▪ Temperature converted to digital data
▪ Sampling rate of 125ms (maximum)
▪ Selectable 0, 1.5°C, 3°C, 6°C hysteresis
▪ Programmable resolution from 0.0625°C to 0.5°C
▪ Accuracy:
— 0.5°C/ ±1.0°C (typ./ max.) from +75°C to +95°C
— ±1.0°C/ ±2.0°C (typ./ max.) from +40°C to +125°C
— ±2.0°C/ ±3.0°C (typ./max.) from -40°C to +125°C
Serial EEPROM Features
▪ Individual Reversible Software Data Protection for all
128 byte blocks
▪ Byte and page (up to 16 bytes) Write operation
▪ Self-time Write cycle
▪ Automatic address incrementing
▪ Random and sequential Read modes
▪ Industrial temperature monitors
▪ Hard disk drives and other PC peripherals
MCH
Memory Bus
DRAMs
©2017 Integrated Device Technology, Inc.
1
May 15, 2017