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MEC1322 Datasheet(PDF) 389 Page - Microchip Technology

Part # MEC1322
Description  Keyboard and Embedded Controller for Notebook PC
PDF  456 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MEC1322 Datasheet(HTML) 389 Page - Microchip Technology

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 2014 - 2015 Microchip Technology Inc.
DS00001719D-page 389
MEC1322
37.0 ELECTRICAL SPECIFICATIONS
37.1
Maximum Ratings*
*Stresses exceeding those listed could cause permanent damage to the device. This is a stress rating only and func-
tional operation of the device at any other condition above those indicated in the operation sections of this specification
is not implied.
37.1.1
ABSOLUTE MAXIMUM THERMAL RATINGS
37.1.2
ABSOLUTE MAXIMUM SUPPLY VOLTAGE RATINGS
37.1.3
ABSOLUTE MAXIMUM I/O VOLTAGE RATINGS
Note 37-1
The Power Supply used to power the buffer is shown in the Signal Power Well column of the Pin
Multiplexing Tables in Section 1.0 “Pin Configuration”.
37.2
Operational Specifications
37.2.1
POWER SUPPLY OPERATIONAL CHARACTERISTICS
Note:
When powering this device from laboratory or system power supplies, it is important that the Absolute Max-
imum Ratings not be exceeded or device failure can result. Some power supplies exhibit voltage spikes on
their outputs when the AC power is switched on or off. In addition, voltage transients on the AC power line
may appear on the DC output. If this possibility exists, it is suggested that a clamp circuit be used.
TABLE 37-1:
ABSOLUTE MAXIMUM THERMAL RATINGS
Parameter
Maximum Limits
Operating Temperature Range
0oC to +70oC Commercial
-40oC to +85oC Industrial
Storage Temperature Range
-55o to +150oC
Lead Temperature Range
Refer to JEDEC Spec J-STD-020B
TABLE 37-2:
ABSOLUTE POWER SUPPLY RATINGS
Symbol
Parameter
Maximum Limits
VBAT
3.0V Battery Backup Power Supply with respect to ground
-0.3V to +3.63V
VCC1
3.3V Suspend Power Supply with respect to ground
-0.3V to +3.63V
VCC2
3.3V Main Power Supply with respect to ground
-0.3V to +3.63V
Parameter
Maximum Limits
Voltage with respect to ground on any pin without back-
drive protection
-0.3V to (Power Supply used to power the buffer) + 0.3V
(Note 37-1)
TABLE 37-3:
POWER SUPPLY OPERATING CONDITIONS
Symbol
Parameter
MIN
TYP
MAX
Units
VBAT
Battery Backup Power Supply
2.0
3.0
3.6
V
VCC1
Suspend Power Supply
3.135
3.3
3.465
V
Note:
The specification for the VCC1 supply is +/- 5%.



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