MEC1404 Datasheet, PDF (501/572 Pages) Microchip Technology – Keyboard and Embedded Controller Products for Notebook PC

MEC140X/1X
42.2.7 COMPARATOR ELECTRICAL CHARACTERISTICS
TABLE 42-11: AC AND DC CHARACTERISTICS: COMPARATOR
CHARACTERISTICS
Standard Operating Conditions (unless otherwise noted)
Symbol
Characteristic
Min
Typ
Max
Units
Comments
V_IN
Input Voltage Range
0
V_HYST Input Hysteresis Voltage
15
CMRR Common mode rejection ratio
44
-
VTR
V
30
45
mV
-
-
dB
T_RESP Large signal response time
—
100
160
ns
VCM = VDD/2
100 mV step
TS_RESP Small signal response time
—
160
320
ns
VCM = VDD/2
100 mV step
T_ON
Comparator Enable to Valid
Output
—
—
0.1
µS
Note 42-6
Note 42-6 To prevent getting glitches on the comparator output, it is recommended to enable the comparator
and wait for the output to be valid and stable before configuring the pin for the CMP_VOUTx function.
42.2.8 THERMAL CHARACTERISTICS
TABLE 42-12: THERMAL OPERATING CONDITIONS
Rating
Consumer Temperature Devices
Operating Junction Temperature Range
Operating Ambient Temperature Range
Power Dissipation:
Internal Chip Power Dissipation:
PINT = VTR x IVTR from Table 42-14 and Table 42-15
(e.g., 3.45V x 12.50mA = 43mW)
I/O Pin Power Dissipation:
I/O = S (({VTR– VOH} x IOH) + S (VOL x IOL))
Maximum Allowed Power Dissipation
Note 1: TJ Max value is at ambient of 70°C
Symbol Min. Typical Max. Unit
TJ
—
—
+125
°C
(Note 1)
TA
0
—
+70
°C
PD
PINT + PI/O
W
PDMAX
(TJ – TA)/JA
W
TABLE 42-13: THERMAL PACKAGING CHARACTERISTICS
Characteristics
Symbol Typical Max. Unit Notes
Package Thermal Resistance, 128-pin VTQFP
JA
51.0
—
°C/W
1
JC
25.0
—
°C/W
1
Package Thermal Resistance, 144-pin WFBGA
JA
50.0
—
°C/W
1
JC
17.0
—
°C/W
1
Note 1: Junction to ambient thermal resistance, Theta-JA (JA) and Junction to case thermal resistance, Theta-JC
(JC) numbers are achieved by package simulations.
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DS00001956D-page 501