dsPIC33FJ06GS101/X02 and dsPIC33FJ16GSX02/X04
TABLE 24-24: TIMER2 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
No.
Symbol
Characteristic
Min
Typ Max Units Conditions
TB10
TB11
TB15
TB20
TTXH
TxCK High Time Synchronous, 0.5 TCY + 20 —
no prescaler
Synchronous,
10
—
with prescaler
TTXL
TxCK Low Time Synchronous, 0.5 TCY + 20 —
no prescaler
Synchronous,
10
—
with prescaler
TTXP
TxCK Input
Period
Synchronous, TCY + 40
—
no prescaler
Synchronous, Greater of:
with prescaler 20 ns or
(TCY + 40)/N
TCKEXTMRL Delay from External TxCK Clock
0.5 TCY
—
Edge to Timer Increment
—
—
—
—
—
1.5 TCY
ns Must also meet
parameter TB15
ns
ns Must also meet
parameter TB15
ns
ns N = prescale
value
(1, 8, 64, 256)
—
TABLE 24-25: TIMER3 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
No.
Symbol
Characteristic
Min
Typ Max Units Conditions
TC10 TTXH
TxCK High Time Synchronous 0.5 TCY + 20 —
—
ns Must also meet
parameter TC15
TC11 TTXL
TxCK Low Time Synchronous 0.5 TCY + 20 —
—
ns Must also meet
parameter TC15
TC15 TTXP
TxCK Input Period Synchronous,
TCY + 40
—
—
ns N = prescale
no prescaler
value
Synchronous, Greater of:
(1, 8, 64, 256)
with prescaler
20 ns or
(TCY + 40)/N
TC20 TCKEXTMRL Delay from External TxCK Clock
Edge to Timer Increment
0.5 TCY
— 1.5 —
TCY
© 2009 Microchip Technology Inc.
Preliminary
DS70318D-page 299