DSPIC30F5011-30IPT Datasheet, PDF (192/229 Pages) Microchip Technology – High-Performance, 16-Bit Digital Signal Controllers

dsPIC30F6011/6012/6013/6014
TABLE 23-24: TYPE B TIMER (TIMER2 AND TIMER4) EXTERNAL CLOCK TIMING
REQUIREMENTS⁽¹⁾
AC CHARACTERISTICS
Standard Operating Conditions: 2.5V to 5.5V
(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 TtxH
TxCK High Time Synchronous, 0.5 TCY + 20 —
—
ns Must also meet
no prescaler
parameter TB15
Synchronous,
10
with prescaler
—
—
ns
TB11 TtxL
TxCK Low Time Synchronous, 0.5 TCY + 20 —
—
ns Must also meet
no prescaler
parameter TB15
Synchronous,
10
with prescaler
—
—
ns
TB15
TB20
TtxP
TCKEXT-
MRL
TxCK Input Period Synchronous, TCY + 10
—
—
no prescaler
Synchronous, Greater of:
with prescaler 20 ns or
(TCY + 40)/N
Delay from External TxCK Clock
Edge to Timer Increment
0.5 TCY
— 1.5 TCY
ns N = prescale
value
(1, 8, 64, 256)
—
Note 1: Timer2 and Timer4 are Type B.
TABLE 23-25: TYPE C TIMER (TIMER3 AND TIMER5) EXTERNAL CLOCK TIMING
REQUIREMENTS⁽¹⁾
AC CHARACTERISTICS
Standard Operating Conditions: 2.5V to 5.5V
(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 + 10
—
—
ns N = prescale
no prescaler
value
Synchronous, Greater of:
(1, 8, 64, 256)
with prescaler
20 ns or
(TCY + 40)/N
TC20
TCKEXT-
MRL
Delay from External TxCK Clock
Edge to Timer Increment
0.5 TCY
— 1.5 —
TCY
Note 1: Timer3 and Timer5 are Type C.
DS70117F-page 190
© 2006 Microchip Technology Inc.