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PIC32MX1XX_12 Datasheet, PDF (259/328 Pages) Microchip Technology – 32-bit Microcontrollers (up to 128 KB Flash and 32 KB SRAM) with Audio and Graphics Interfaces, USB, and Advanced Analog | |||
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PIC32MX1XX/2XX
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 29-21: TIMER1 EXTERNAL CLOCK TIMING REQUIREMENTS
AC CHARACTERISTICS(1)
Standard Operating Conditions: 2.3V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ï£ TA ï£ +85°C for Industrial
-40°C ï£ TA ï£ +105°C for V-temp
Param.
No.
Symbol
Characteristics(2)
Min.
Typical Max. Units Conditions
TA10 TTXH
TA11 TTXL
TA15 TTXP
TxCK
Synchronous, [(12.5 ns or 1 TPB)/N] â
High Time with prescaler
+ 25 ns
Asynchronous,
10
â
with prescaler
TxCK
Synchronous, [(12.5 ns or 1 TPB)/N] â
Low Time with prescaler
+ 25 ns
Asynchronous,
10
â
with prescaler
TxCK
Synchronous, [(Greater of 25 ns or
â
Input Period with prescaler 2 TPB)/N] + 30 ns
[(Greater of 25 ns or
â
2 TPB)/N] + 50 ns
Asynchronous,
20
â
with prescaler
50
â
OS60 FT1
SOSC1/T1CK Oscillator
32
â
Input Frequency Range
(oscillator enabled by setting
TCS bit (T1CON<1>))
TA20 TCKEXTMRL Delay from External TxCK
â
Clock Edge to Timer
Increment
Note 1:
2:
3:
Timer1 is a Type A timer.
This parameter is characterized, but not tested in manufacturing.
N = Prescale Value (1, 8, 64, 256).
â ns Must also meet
parameter TA15
â ns
â
â ns Must also meet
parameter TA15
â ns
â
â ns VDD > 2.7V
â ns VDD < 2.7V
â ns VDD > 2.7V
(Note 3)
â ns VDD < 2.7V
(Note 3)
100 kHz
â
1 TPB
â
ï£ 2011-2012 Microchip Technology Inc.
Preliminary
DS61168E-page 259
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