70592C Datasheet, PDF (257/314 Pages) Microchip Technology – High-Performance, 16-bit Microcontrollers

PIC24HJXXXGPX06A/X08A/X10A
FIGURE 24-5:
TIMER1, 2, 3, 4, 5, 6, 7, 8 AND 9 EXTERNAL CLOCK TIMING CHARACTERISTICS
TxCK
TMRx
Tx10
Tx11
Tx15
OS60
Tx20
Note: Refer to Figure 24-1 for load conditions.
TABLE 24-22: TIMER1 EXTERNAL CLOCK TIMING REQUIREMENTS⁽¹⁾
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
TA10 TTXH
TA11 TTXL
TxCK High Time Synchronous, TCY + 20 —
—
ns Must also meet
no prescaler
parameter TA15
Synchronous, (TCY + 20)/N —
—
ns
with prescaler
Asynchronous
20
—
—
ns
TxCK Low Time Synchronous, (TCY + 20)/N —
—
ns Must also meet
no prescaler
parameter TA15
Synchronous,
20
with prescaler
Asynchronous
20
—
—
ns N = prescale
value
—
—
ns
(1,8,64,256)
TA15 TTXP
TxCK Input Period Synchronous, 2TCY + 40 —
—
ns
—
no prescaler
Synchronous, Greater of: —
—
— N = prescale
with prescaler 40 ns or
value
(2TCY + 40)/
(1, 8, 64, 256)
N
Asynchronous
40
—
—
ns
—
OS60 Ft1
SOSC1/T1CK Oscillator Input
frequency Range (oscillator
enabled by setting TCS bit
(T1CON<1>))
DC
—
50 kHz
—
TA20 TCKEXTMRL Delay from External TxCK Clock 0.75TCY+40 — 1.75TCY ns
—
Edge to Timer Increment
+40
Note 1: Timer1 is a Type A.
© 2011 Microchip Technology Inc.
DS70592C-page 257