Datasheet

dsPIC33EPXXX(GP/MC/MU)806/810/814 and PIC24EPXXX(GP/GU)810/814
DS70616F-page 516 Preliminary © 2009-2012 Microchip Technology Inc.
FIGURE 32-7: TIMERQ (QEI MODULE) EXTERNAL CLOCK TIMING CHARACTERISTICS
TQ11
TQ15
TQ10
TQ20
QEB
POSCNT
TABLE 32-26: QEI MODULE EXTERNAL CLOCK TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤ TA ≤ +125°C for Extended
Param. Symbol Characteristic
(1)
Min. Typ. Max. Units Conditions
TQ10 TtQH TQCK High Time Synchronous,
with prescaler
[Greater of
(12.5 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 or
0.5 TCY)/N]
+ 25
— — ns Must also meet
parameter TQ15.
TQ15 TtQP TQCP Input
Period
Synchronous,
with prescaler
[Greater of
(25 or TCY)
/N] + 50
——ns —
TQ20 TCKEXTMRL Delay from External TxCK Clock
Edge to Timer Increment
—1TCY ——
Note 1: These parameters are characterized but not tested in manufacturing.