Microchip Technology MA330031-2 Data Sheet
2011-2013 Microchip Technology Inc.
DS70000657H-page 423
dsPIC33EPXXXGP50X, dsPIC33EPXXXMC20X/50X AND PIC24EPXXXGP/MC20X
FIGURE 30-11:
TIMERQ (QEI MODULE) EXTERNAL CLOCK TIMING CHARACTERISTICS
(dsPIC33EPXXXMC20X/50X AND PIC24EPXXXMC20X DEVICES ONLY)
(dsPIC33EPXXXMC20X/50X AND PIC24EPXXXMC20X DEVICES ONLY)
QEB
POSCNT
TQ10
TQ11
TQ15
TQ20
TABLE 30-30: QEI MODULE EXTERNAL CLOCK TIMING REQUIREMENTS
(dsPIC33EPXXXMC20X/50X AND PIC24EPXXXMC20X DEVICES ONLY)
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature
(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
TQ10
TtQH
TQCK High
Time
Time
Synchronous,
with prescaler
with prescaler
Greater of 12.5 + 25
or
(0.5 T
CY
/N) + 25
—
—
ns
Must also meet
Parameter TQ15
Parameter TQ15
TQ11
TtQL
TQCK Low
Time
Time
Synchronous,
with prescaler
with prescaler
Greater of 12.5 + 25
or
(0.5 T
CY
/N) + 25
—
—
ns
Must also meet
Parameter TQ15
Parameter TQ15
TQ15
TtQP
TQCP Input
Period
Period
Synchronous,
with prescaler
with prescaler
Greater of 25 + 50
or
(1 T
CY
/N) + 50
—
—
ns
TQ20
T
CKEXTMRL
Delay from External TQCK
Clock Edge to Timer
Increment
Clock Edge to Timer
Increment
—
1
T
CY
—
Note 1:
These parameters are characterized but not tested in manufacturing.