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PIC16F946
DS41265A-page 246
Preliminary
2005 Microchip Technology Inc.
TABLE 19-8:
CAPTURE/COMPARE/PWM REQUIREMENTS
TABLE 19-9:
COMPARATOR SPECIFICATIONS
TABLE 19-10: COMPARATOR VOLTAGE REFERENCE SPECIFICATIONS
Param.
No.
Sym
Characteristic
Min
Typ Max Units Conditions
50*
TCCL
CCP1
input low time
No Prescaler
0.5TCY + 5
—
ns
With Prescaler
3.0-5.5V
10
—
ns
2.0-5.5V
20
—
ns
51*
TCCH
CCP1
input high time
No Prescaler
0.5TCY + 5
—
ns
With Prescaler
3.0-5.5V
10
—
ns
2.0-5.5V
20
—
ns
52*
TCCP
CCP1 input period
3TCY + 40
N
—
ns
N = prescale
value (1,4 or 16)
53*
TCCR
CCP1 output fall time
3.0-5.5V
—
10
25
ns
2.0-5.5V
—
25
50
ns
54*
TCCF
CCP1 output fall time
3.0-5.5V
—
10
25
ns
2.0-5.5V
—
25
45
ns
*
These parameters are characterized but not tested.
Data in “Typ” column is at 5V, 25°C unless otherwise stated. Parameters are for design guidance only and
are not tested.
Comparator Specifications
Standard Operating Conditions (unless otherwise stated)
Operating temperature
-40°C
≤ TA ≤ +125°C
Sym
Characteristics
Min
Typ
Max
Units
Comments
VOS
Input Offset Voltage
—
±5.0
±10
mV
VCM
Input Common Mode Voltage
0
—
VDD – 1.5
V
CMRR
Common Mode Rejection Ratio
+55*
—
db
TRT
Response Time(1)
—
150
400*
ns
TMC2COV
Comparator Mode Change to
Output Valid
——
10*
μs
*
These parameters are characterized but not tested.
Note 1:
Response time measured with one comparator input at (VDD – 1.5)/2 while the other input transitions from
VSS to VDD – 1.5V.
Voltage Reference Specifications
Standard Operating Conditions (unless otherwise stated)
Operating temperature
-40°C
≤ TA ≤ +125°C
Sym.
Characteristics
Min
Typ
Max
Units
Comments
Resolution
—
VDD/24*
VDD/32
—
LSb
Low Range (VRR = 1)
High Range (VRR = 0)
Absolute Accuracy
—
±1/4*
±1/2*
LSb
Low Range (VRR = 1)
High Range (VRR = 0)
Unit Resistor Value (R)
—
2K*
—
Ω
Settling Time(1)
——
10*
μs
*
These parameters are characterized but not tested.
Note 1:
Settling time measured while VRR = 1 and VR<3:0> transitions from ‘0000’ to ‘1111’.
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