Datasheet

 2009-2012 Microchip Technology Inc. DS70591E-page 419
dsPIC33FJ32GS406/606/608/610 and dsPIC33FJ64GS406/606/608/610
TABLE 28-7: TIMER2/4 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
Param
No.
Symbol Characteristic
(1)
Min Typ Max Units Conditions
MTB10 TtxH TxCK High
Time
Synchronous
mode
Greater of:
15 or
(T
CY + 15)/N
— — ns Must also meet
Parameter TB15,
N = prescale
value (1, 8, 64, 256)
MTB11 TtxL TxCK Low
Time
Synchronous
mode
Greater of:
15 or
(TCY + 15)/N
— — ns Must also meet
Parameter TB15,
N = prescale
value (1, 8, 64, 256)
MTB15 TtxP TxCK Input
Period
Synchronous
mode
Greater of:
40 or
(2 T
CY + 30)/N
— — ns N = prescale
value(1, 8, 64, 256)
MTB20 T
CKEXTMRL Delay from External TxCK
Clock Edge to Timer
Increment
0.75 TCY + 30 — 1.75 TCY + 30 ns
Note 1: These parameters are characterized, but are not tested in manufacturing.
TABLE 28-8: TIMER3/5 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
Param
No.
Symbol Characteristic
(1)
Min Typ Max Units Conditions
MTC10 TtxH TxCK High
Time
Synchronous TCY + 10 — — ns Must also meet
Parameter TC15
MTC11 TtxL TxCK Low
Time
Synchronous TCY + 10 — — ns Must also meet
Parameter TC15
MTC15 TtxP TxCK Input
Period
Synchronous,
with prescaler
2 T
CY + 20 — — ns
MTC20 T
CKEXTMRL Delay from External TxCK
Clock Edge to Timer
Increment
0.75 TCY + 20 — 1.75 TCY + 20 ns
Note 1: These parameters are characterized, but are not tested in manufacturing.