PIC24FJ16MC101_12 Datasheet, PDF (273/350 Pages) Microchip Technology – 16-bit Microcontrollers (up to 32 KB Flash and 2 KB SRAM)

PIC24FJ16MC101/102 AND PIC24FJ32MC101/102/104
FIGURE 26-5:
TIMER1, 2 AND 3 EXTERNAL CLOCK TIMING CHARACTERISTICS
TxCK
TMRx
Tx10
Tx11
Tx15
OS60
Tx20
Note: Refer to Figure 26-1 for load conditions.
TABLE 26-22: 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⁽²⁾
Min
Typ
Max
Units Conditions
TA10 TTXH
TxCK High ^{Synchronous Greater of:}
—
—
ns
Time
mode
20 or
(TCY + 20)/N
Asynchronous
35
—
—
ns
TA11 TTXL
TxCK Low Synchronous Greater of:
—
—
ns
Time
mode
20 ns or
(TCY + 20)/N
Asynchronous
10
—
—
ns
TA15 TTXP
TxCK Input Synchronous Greater of:
—
—
ns
Period
mode
40 or
(2 TCY + 40)/N
OS60 Ft1
SOSC1/T1CK Oscillator
Input frequency Range
(oscillator enabled by
setting bit TCS
(T1CON<1>))
DC
—
50
kHz
TA20
TCKEXTMRL Delay from External TxCK
Clock Edge to Timer
Increment
0.75 TCY + 40
— 1.75 TCY + 40 ns
Note 1: Timer1 is a Type A.
2: These parameters are characterized by similarity, but are not tested in manufacturing.
Must also meet
parameter TA15
N = prescaler
value (1, 8, 64,
256)
Must also meet
parameter TA15
N = prescaler
value (1, 8, 64,
256)
N = prescale
value
(1, 8, 64, 256)
—
—
© 2011-2012 Microchip Technology Inc.
Preliminary
DS39997C-page 273