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Microchip Technology MA330024 Data Sheet

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dsPIC33FJ32GS406/606/608/610 and dsPIC33FJ64GS406/606/608/610
DS70000591F-page 390
 2009-2014 Microchip Technology Inc.
      
  
TABLE 27-24: TIMER2/4 EXTERNAL CLOCK TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
  Operating temperature -40°C
 T
A
 
 +85°C for Industrial
-40°C
 T
A
 
 +125°C for Extended 
Param
No.
Symbol
Characteristic
Min
Typ
Max
Units
Conditions
TB10
TtxH
TxCK High 
Time
Synchronous 
mode
Greater of:
20 or
(T
CY
 + 20)/N
—
—
ns
Must also meet 
Parameter TB15, 
N = Prescale value
(1, 8, 64, 256)
TB11
TtxL
TxCK Low 
Time
Synchronous 
mode
Greater of:
20 or
(T
CY
 + 20)/N
—
—
ns
Must also meet 
Parameter TB15, 
N = Prescale value
(1, 8, 64, 256)
TB15
TtxP
TxCK Input 
Period
Synchronous 
mode
Greater of:
40 or
(2 T
CY
 + 40)/N
—
—
ns
N = Prescale value
(1, 8, 64, 256)
TB20
T
CKEXTMRL
Delay from External TxCK 
Clock Edge to Timer 
Increment
0.75 T
CY
 + 40
—
1.75 T
CY
 + 40
ns
Note 1:
These parameters are characterized, but are not tested in manufacturing.
TABLE 27-25: TIMER3/5 EXTERNAL CLOCK TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
  Operating temperature -40°C
 T
A
 
 +85°C for Industrial
-40°C
 T
A
 
 +125°C for Extended
Param
No.
Symbol
Characteristic
)
Min
Typ
Max
Units
Conditions
TC10
TtxH
TxCK High 
Time
Synchronous
T
CY
 + 20
—
—
ns
Must also meet 
Parameter TC15
TC11
TtxL
TxCK Low 
Time
Synchronous
T
CY
 + 20
—
—
ns
Must also meet 
Parameter TC15
TC15
TtxP
TxCK Input 
Period
Synchronous,
with Prescaler
2 T
CY
 + 40
—
—
ns
TC20
T
CKEXTMRL
Delay from External TxCK 
Clock Edge to Timer 
Increment
0.75 T
CY
 + 40
—
1.75 T
CY
 + 40
ns
Note 1:
These parameters are characterized, but are not tested in manufacturing.