MEC1322 Datasheet, PDF (394/456 Pages) Microchip Technology – Keyboard and Embedded Controller for Notebook PC

MEC1322
TABLE 37-4: DC ELECTRICAL CHARACTERISTICS (CONTINUED)
Parameter
Symbol
MIN TYP MAX Units
Comments
Crystal oscillator
XTAL1 (OCLK)
XTAL2 (ICLK)
The MEC1322 crystal oscillator design requires a 32.768 KHz parallel resonant crystal with
load caps in the range 4-18pF. Refer to “Application Note PCB Layout Guide for MEC1322”
for more information.
Low Input Level
V_ILI
High Input Level
V_ILH
2.0
0.4
V
V VIN = 0 to VCC1
37.2.4.1 Pin Leakage
Leakage characteristics for all pins is shown in the following table:
TABLE 37-5: PIN LEAKAGE
(TA = 0^oC to +85^oC)
Parameter
Leakage Current
Symbol
I_IL
MIN
TYP
MAX
+/-2
Units
µA
Comments
VIN=0V to VCC1
37.2.4.2 Backdrive Protection
All signal pins are Backdrive Protected except those listed in the Pin Configuration chapter as non-backdrive protected.
TABLE 37-6: BACKDRIVE PROTECTION
(TA = 0^oC to +85^oC)
Parameter
Input Leakage
Symbol
I_IL
MIN
TYP
MAX
-2
+2
Units
µA
Comments
VIN=3.47V@VCC1=0V
37.2.5 ADC ELECTRICAL CHARACTERISTICS
TABLE 37-7: ADC CHARACTERISTICS
Parameter
MIN
TYP
Analog Supply Voltage, AVCC
Resolution
Accuracy
Differential Non Linearity, DNL
Integral Non Linearity, INL
Gain Error, EGAIN
Offset Error, EOFFSET
Conversion Time
Input Impedance
3.135
3.3
–
–
–
1
-1
–
-1.5
–
-2
–
-2
–
–
–
3
–
MAX
3.465
10
–
+1
+1.5
2
2
12
–
Units
V
Bits
LSB
LSB
LSB
LSB
LSB
μs/channel
MΩ
Note: The AVCC power supply accuracy is shown as 3.3V +/- 5%.
DS00001719D-page 394
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