Datasheet

 2011-2013 Microchip Technology Inc. DS70657G-page 421
dsPIC33EPXXXGP50X, dsPIC33EPXXXMC20X/50X AND PIC24EPXXXGP/MC20X
FIGURE 30-11: TIMERQ (QEI MODULE) EXTERNAL CLOCK TIMING CHARACTERISTICS
(dsPIC33EPXXXMC20X/50X AND PIC24EPXXXMC20X DEVICES ONLY)
TQ11
TQ15
TQ10
TQ20
QEB
POSCNT
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 -40°C  TA  +85°C for Industrial
-40°C  T
A  +125°C for Extended
Param
No.
Symbol Characteristic
(1)
Min. Typ. Max. Units Conditions
TQ10 TtQH TQCK High
Time
Synchronous,
with prescaler
Greater of 12.5 + 25
or
(0.5 T
CY/N) + 25
— — ns Must also meet
Parameter TQ15
TQ11 TtQL TQCK Low
Time
Synchronous,
with prescaler
Greater of 12.5 + 25
or
(0.5 T
CY/N) + 25
— — ns Must also meet
Parameter TQ15
TQ15 TtQP TQCP Input
Period
Synchronous,
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
—1T
CY —
Note 1: These parameters are characterized but not tested in manufacturing.