Datasheet

© 2009-2011 Microchip Technology Inc. DS61156G-page 201
PIC32MX5XX/6XX/7XX
FIGURE 31-7: INPUT CAPTURE (CAPx) TIMING CHARACTERISTICS
TABLE 31-24: TIMER2, 3, 4, 5 EXTERNAL CLOCK TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 2.3V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C
≤ TA ≤ +105°C for V-Temp
Param.
No.
Symbol Characteristics
(1)
Min. Max. Units Conditions
TB10 TTXHTxCK
High Time
Synchronous, with
prescaler
[(12.5 ns or 1 TPB)/N]
+ 25 ns
— ns Must also meet
parameter
TB15
N = prescale
value
(1, 2, 4, 8,
16, 32, 64,
256)
TB11 T
TXLTxCK
Low Time
Synchronous, with
prescaler
[(12.5 ns or 1 TPB)/N]
+ 25 ns
— ns Must also meet
parameter
TB15
TB15 T
TXPTxCK
Input
Period
Synchronous, with
prescaler
[(Greater of [(25 ns or
2 T
PB)/N] + 30 ns
—nsV
DD > 2.7V
[(Greater of [(25 ns or
2 T
PB)/N] + 50 ns
—nsV
DD < 2.7V
TB20 T
CKEXTMRL Delay from External TxCK
Clock Edge to Timer Increment
—1TPB —
Note 1: These parameters are characterized, but not tested in manufacturing.
ICx
IC10 IC11
IC15
Note: Refer to Figure 31-1 for load conditions.
TABLE 31-25: INPUT CAPTURE MODULE TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 2.3V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C
≤ TA ≤ +105°C for V-Temp
Param.
No.
Symbol Characteristics
(1)
Min. Max. Units Conditions
IC10 TCCL ICx Input Low Time [(12.5 ns or 1 TPB)/N]
+ 25 ns
— ns Must also
meet
parameter
IC15.
N = prescale
value (1, 4, 16)
IC11 T
CCH ICx Input High Time [(12.5 ns or 1 TPB)/N]
+ 25 ns
— ns Must also
meet
parameter
IC15.
IC15 T
CCP ICx Input Period [(25 ns or 2 TPB)/N]
+ 50 ns
—ns —
Note 1: These parameters are characterized, but not tested in manufacturing.