2

Atmel AT30TSE002B [Preliminary]

8711D

−SEEPR−8/10

Table 0-1.

Pin Configuration

Pin Name

Description

8-WDFN

Bottom View

EVENT

SCL

SDA

A0

A1

A2

GND

8

7

6

5

1

2

3

4

A0, A1, A2

Address Inputs

SDA

Serial Data

SCL

Serial Clock Input

Temperature Alert

EVENT

GND

Ground

V

CC

Power Supply

Description

Atmel

serially electrically-erasable and programmable read only memory (EEPROM) organized as 256-bytes of 8-bits

each and could be used to store memory module and vendor information. The EEPROM operation is tailored

specifically for DRAM Memory Modules Serial Presence Detect (SPD). The first 128-bytes of the memory

incorporate a permanent and a reversible software write protection (WP) feature. Once the permanent software

WP is enabled, by sending a special command, it cannot be reversed. However, once the reversible software WP

is enabled, it can be reversed by sending a special command.

The integrated temperature sensor converts temperatures from -20°C to +125°C to a digital word and provides an

accuracy of ±1°C (max.) in the temperature range +75°C to +95°C. The temperature sensor continuously

monitors temperature and updates data in the temperature register at least eight times per second. Temperature

data is latched internally by the device and may be read by software via a microcontroller at anytime. The

AT30TSE002B has flexible user programmable internal registers to configure the temperature sensor

performance and response to over temperature conditions. The device contains programmable high, low, and

an interrupt or as a comparator output. Manufacturer and Device ID registers provide the ability to confirm the

identity of the device. The AT30TSE002B supports the industry standard 2-wire I

include time out feature to help prevent system lock-ups.