PIC32MX3XX_1 Datasheet, PDF (168/208 Pages) Microchip Technology – High-Performance, General Purpose and USB 32-bit Flash Microcontrollers

PIC32MX3XX/4XX
FIGURE 29-6:
TIMER1, 2, 3, 4, 5 EXTERNAL CLOCK TIMING CHARACTERISTICS
TxCK
Tx10
TMRx
Note: Refer to Figure 29-1 for load conditions.
Tx11
Tx15
OS60
Tx20
TABLE 29-23: TIMER1 EXTERNAL CLOCK TIMING REQUIREMENTS⁽¹⁾
AC CHARACTERISTICS
Standard Operating Conditions: 2.3V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
Param.
No.
Symbol
Characteristics⁽²⁾
Min.
Typical Max. Units Conditions
TA10 TTXH
TA11 TTXL
TA15 TTXP
TxCK
Synchronous, ^{[(12.5 nsec or 1TPB)/N]} —
High Time with prescaler
+ 25 nsec
Asynchronous,
10
—
with prescaler
TxCK
Synchronous, [(12.5 nsec or 1TPB)/N] —
Low Time with prescaler
+ 25 nsec
Asynchronous,
10
—
with prescaler
TxCK
Synchronous, [(Greater of 25 nsec or —
Input Period with prescaler
2TPB)/N]
+ 30 nsec
[(Greater of 25 nsec or —
2TPB)/N]
+ 50 nsec
Asynchronous,
20
—
with prescaler
50
—
OS60 FT1
SOSC1/T1CK Oscillator
Input Frequency Range
(oscillator enabled by
setting TCS bit
(T1CON<1>))
32
—
TA20 TCKEXT- Delay from External TxCK
—
MRL
Clock Edge to Timer
Increment
Note 1: Timer1 is a Type A.
2: This parameter is characterized, but not tested in manufacturing.
3: N = prescale value (1, 8, 64, 256)
— nsec Must also meet
parameter TA15.
— nsec
— nsec Must also meet
parameter TA15.
— nsec
—
— nsec _{VDD > 2.7V}
— nsec _{VDD < 2.7V}
— nsec
— nsec
100 kHz
VDD > 2.7V
(Note 3)
VDD < 2.7V
(Note 3)
—
1 TPB
—
DS61143G-page 168
© 2010 Microchip Technology Inc.