Datasheet

dsPIC30F4011/4012
DS70135G-page 196 © 2010 Microchip Technology Inc.
FIGURE 24-8: QEI MODULE EXTERNAL CLOCK TIMING CHARACTERISTICS
TQ11
TQ15
TQ10
TQ20
QEB
POSCNT
TABLE 24-25: QEI MODULE EXTERNAL CLOCK TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 2.5V to 5.5V
(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 TxCK High Time Synchronous,
with prescaler
TCY + 20 — — ns Must also meet
parameter TQ15
TQ11 TtQL TxCK Low Time Synchronous,
with prescaler
TCY + 20 — — ns Must also meet
parameter TQ15
TQ15 TtQP TxCK Input Period Synchronous,
with prescaler
2 * T
CY + 40 — — ns
TQ20 TCKEXTMRL Delay from External TxCK Clock
Edge to Timer Increment
0.5 TCY — 1.5 TCY ns
Note 1: These parameters are characterized but not tested in manufacturing.