Microchip Technology MA330013 数据表
dsPIC33F
DS70165E-page 324
Preliminary
©
2007 Microchip Technology Inc.
FIGURE 26-6:
TIMERQ (QEI MODULE) EXTERNAL CLOCK TIMING CHARACTERISTICS
TABLE 26-24: QEI MODULE EXTERNAL CLOCK TIMING REQUIREMENTS
TQ11
TQ15
TQ10
TQ20
QEB
POSCNT
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
Param
No.
Symbol
Characteristic
(1)
Min
Typ
Max
Units
Conditions
TQ10
TtQH
TQCK High Time
Synchronous,
with prescaler
with prescaler
T
CY
+ 20
—
ns
Must also meet
parameter TQ15
parameter TQ15
TQ11
TtQL
TQCK Low Time
Synchronous,
with prescaler
with prescaler
T
CY
+ 20
—
ns
Must also meet
parameter TQ15
parameter TQ15
TQ15
TtQP
TQCP Input Period Synchronous,
with prescaler
2 * T
CY
+ 40
—
ns
—
TQ20
T
CKEXTMRL
Delay from External TxCK Clock
Edge to Timer Increment
Edge to Timer Increment
0.5 T
CY
1.5 T
CY
—
—
Note 1:
These parameters are characterized but not tested in manufacturing.