DSPIC33EP256GP506-I Datasheet, PDF (420/510 Pages) Microchip Technology – 16-bit Microcontrollers and Digital Signal Controllers

dsPIC33EPXXXGP50X, dsPIC33EPXXXMC20X/50X, AND PIC24EPXXXGP/MC20X
FIGURE 30-11:
TIMERQ (QEI MODULE) EXTERNAL CLOCK TIMING CHARACTERISTICS
(dsPIC33EPXXXMC20X/50X AND PIC24EPXXXMC20X DEVICES ONLY)
QEB
POSCNT
TQ10
TQ11
TQ15
TQ20
TABLE 30-29: 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 ≤ TA ≤ +125°C for Extended
Param
No.
Symbol
Characteristic⁽¹⁾
Min.
Typ. Max. Units Conditions
TQ10 TtQH
TQCK High Synchronous, Greater of 12.5 + 25
Time
with prescaler
or
—
(0.5 TCY/N) + 25
—
ns
Must also meet
parameter TQ15.
TQ11 TtQL
TQCK Low Synchronous, Greater of 12.5 + 25
Time
with prescaler
or
—
(0.5 TCY/N) + 25
—
ns
Must also meet
parameter TQ15.
TQ15 TtQP
TQCP Input Synchronous, Greater of 25 + 50
Period
with prescaler
or
—
—
ns
—
(1 TCY/N) + 50
TQ20 TCKEXTMRL Delay from External TxCK
Clock Edge to Timer Incre-
—
1
TCY
—
—
ment
Note 1: These parameters are characterized but not tested in manufacturing.
DS70657E-page 420
Preliminary
© 2011-2012 Microchip Technology Inc.