DSPIC30F6010A_07 Datasheet, PDF (194/236 Pages) Microchip Technology – High-Performance, 16-Bit Digital Signal Controllers

dsPIC30F6010A/6015
FIGURE 24-7:
TIMER1, 2, 3, 4 AND 5 EXTERNAL CLOCK TIMING CHARACTERISTICS
TxCK
TMRX
Tx10
Tx11
Tx15
OS60
Tx20
Note: Refer to Figure 24-2 for load conditions.
TABLE 24-23: TIMER1 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 ≤ TA ≤ +125°C for Extended
Param
No.
Symbol
Characteristic
Min
Typ Max Units Conditions
TA10 TTXH
TxCK High Time Synchronous, 0.5 TCY + 20 —
no prescaler
Synchronous,
10
—
with prescaler
Asynchronous
10
—
TA11 TTXL
TxCK Low Time Synchronous, 0.5 TCY + 20 —
no prescaler
Synchronous,
10
—
with prescaler
Asynchronous
10
—
TA15 TTXP
TxCK Input Period Synchronous, TCY + 10 —
no prescaler
Synchronous, Greater of: —
with prescaler 20 ns or
(TCY + 40)/N
Asynchronous
20
—
OS60 Ft1
SOSC1/T1CK oscillator input
DC
—
frequency range (oscillator enabled
by setting bit TCS (T1CON, bit 1))
TA20
TCKEXTMRL Delay from External TxCK Clock
Edge to Timer Increment
0.5 TCY
Note: Timer1 is a Type A.
—
ns Must also meet
parameter TA15
—
ns
—
ns
—
ns Must also meet
parameter TA15
—
ns
—
ns
—
ns
—
— N = prescale
value
(1, 8, 64, 256)
—
ns
50 kHz
1.5 —
TCY
DS70150C-page 192
© 2007 Microchip Technology Inc.