MCP98243 Microchip Technology Inc., MCP98243 Datasheet - Page 33

• Manufacturer Part Number: MCP98243
• Description: Memory Module Temperature Sensor W/ Eeprom For Spd
• Manufacturer: Microchip Technology Inc.

5.2.3.2
In the Interrupt mode, the Event output is asserted as
active-high or active-low (depending on the polarity con-
figuration) when T
T
(Interrupt Clear) of CONFIG. Shutting down the device
will not reset or deassert the Event output. This mode can
not be selected when the Event output is used as critical
temperature output only, using bit 2 of CONFIG.
This mode is designed for interrupt driven microcontroller
based systems. The microcontroller receiving the inter-
rupt will have to acknowledge the interrupt by setting bit
5 of CONFIG register from the MCP98243.
© 2009 Microchip Technology Inc.
LOWER
limits. The output is deasserted by setting bit 5
Interrupt Mode
A
drifts above or below T
UPPER
and
5.2.4
The MCP98243 is capable of providing a temperature
data with 0.5°C to 0.0625°C resolution. The Resolution
can selected using the Resolution register
8) which is located in address ‘00001000’b. This
address location is not specified in JEDEC Standard
JC42.4. However, it provides additional flexibility while
being functionally compatible with JC42.4 and provide
a 0.25°C resolution at 125 ms (max.). The selected res-
olution can be read by user using bit 4 and bit 3 of the
Capability register
is set as POR default by factory.
TABLE 5-2:
(Power-up default)
Resolution
0.0625°C
0.125°C
0.25°C
0.5°C
TEMPERATURE RESOLUTION
TEMPERATURE
CONVERSION TIME
(Register
t
MCP98243
(ms)
CONV
130
260
30
65
5-2). A 0.25°C resolution
DS22153A-page 33
Samples/sec
(typical)
(Register 5-
33
15
8
4