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PIC32MX1XX Datasheet, PDF (260/320 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(1)
AC CHARACTERISTICS
Standard Operating Conditions: 2.3V to 3.6V
(unless otherwise stated)
Operating temperature -40°C â¤TA â¤+85°C for Industrial
-40°C â¤TA â¤+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: Timer1 is a Type A.
2: This parameter is characterized, but not tested in manufacturing.
3: 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
DS61168D-page 260
Preliminary
© 2011-2012 Microchip Technology Inc.
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