PIC24HJ12GP201_11 Datasheet, PDF (204/262 Pages) Microchip Technology – High-Performance, 16-bit Microcontrollers 5-cycle latency

PIC24HJ12GP201/202
FIGURE 22-5:
TIMER1, 2, 3 AND 4 EXTERNAL CLOCK TIMING CHARACTERISTICS
TxCK
TMRx
Tx10
Tx11
Tx15
OS60
Tx20
Note: Refer to Figure 22-1 for load conditions.
TABLE 22-22: 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
TxCK High Time Synchronous, TCY + 20 —
—
ns Must also meet
no prescaler
parameter TA15.
Synchronous, (TCY + 20)/N —
—
ns ^{N = prescale}
with prescaler
value
Asynchronous
20
—
—
ns ^{(1, 8, 64, 256)}
TA11 TTXL
TxCK Low Time Synchronous, (TCY + 20) —
—
ns Must also meet
no prescaler
parameter TA15.
Synchronous, (TCY + 20)/N —
—
ns ^{N = prescale}
with prescaler
value
Asynchronous
20
—
—
ns ^{(1, 8, 64, 256)}
TA15 TTXP
TxCK Input
Synchronous, 2 TCY + 40 —
—
ns
—
Period
no prescaler
Synchronous, Greater of: —
—
— N = prescale
with prescaler 40 ns or
value
(2 TCY + 40)/
(1, 8, 64, 256)
N
Asynchronous
40
—
—
ns
—
OS60 Ft1
SOSCI/T1CK Oscillator Input
frequency Range (oscillator
enabled by setting bit TCS
(T1CON<1>))
DC
—
50
kHz
—
TA20 TCKEXTMRL Delay from External TxCK Clock 0.75 TCY +
1.75 TCY + —
—
Edge to Timer Increment
40
40
Note 1: Timer1 is a Type A.
DS70282E-page 204
© 2007-2011 Microchip Technology Inc.