MEC1322 Datasheet, PDF (389/456 Pages) Microchip Technology – Keyboard and Embedded Controller for Notebook PC

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.
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.
37.1.1 ABSOLUTE MAXIMUM THERMAL RATINGS
TABLE 37-1: ABSOLUTE MAXIMUM THERMAL RATINGS
Parameter
Operating Temperature Range
Storage Temperature Range
Lead Temperature Range
Maximum Limits
0^oC to +70^oC Commercial
-40^oC to +85^oC Industrial
-55^o to +150^oC
Refer to JEDEC Spec J-STD-020B
37.1.2 ABSOLUTE MAXIMUM SUPPLY VOLTAGE RATINGS
TABLE 37-2: ABSOLUTE POWER SUPPLY RATINGS
Symbol
Parameter
VBAT
VCC1
VCC2
3.0V Battery Backup Power Supply with respect to ground
3.3V Suspend Power Supply with respect to ground
3.3V Main Power Supply with respect to ground
Maximum Limits
-0.3V to +3.63V
-0.3V to +3.63V
-0.3V to +3.63V
37.1.3 ABSOLUTE MAXIMUM I/O VOLTAGE RATINGS
Parameter
Maximum Limits
Voltage with respect to ground on any pin without back- -0.3V to (Power Supply used to power the buffer) + 0.3V
drive protection
(Note 37-1)
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
TABLE 37-3: POWER SUPPLY OPERATING CONDITIONS
Symbol
Parameter
MIN
TYP
VBAT
VCC1
Battery Backup Power Supply
2.0
3.0
Suspend Power Supply
3.135
3.3
Note: The specification for the VCC1 supply is +/- 5%.
MAX
3.6
3.465
Units
V
V
 2014 - 2015 Microchip Technology Inc.
DS00001719D-page 389