Microchip Technology AC164112 Data Sheet
PIC16F72X/PIC16LF72X
DS41341E-page 226
© 2009 Microchip Technology Inc.
TABLE 23-3:
CLKOUT AND I/O TIMING PARAMETERS
FIGURE 23-8:
RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP
TIMER TIMING
TIMER TIMING
Standard Operating Conditions (unless otherwise stated)
Operating Temperature -40°C
Operating Temperature -40°C
≤ T
A
≤ +125°C
Param
No.
Sym.
Characteristic
Min.
Typ†
Max.
Units
Conditions
OS11
TosH2ckL
Fosc
↑ to CLKOUT↓
(1)
—
—
70
ns
V
DD
= 3.3-5.0V
OS12
TosH2ckH Fosc
↑ to CLKOUT↑
(1)
—
—
72
ns
V
DD
= 3.3-5.0V
OS13
TckL2ioV
CLKOUT
↓ to Port out valid
(1)
—
—
20
ns
OS14
TioV2ckH
Port input valid before CLKOUT
↑
(1)
T
OSC
+ 200
ns
—
—
ns
OS15
TosH2ioV
Fosc
↑ (Q1 cycle) to Port out valid
—
50
70*
ns
V
DD
= 3.3-5.0V
OS16
TosH2ioI
Fosc
↑ (Q2 cycle) to Port input invalid
(I/O in hold time)
50
—
—
ns
V
DD
= 3.3-5.0V
OS17
TioV2osH
Port input valid to Fosc
↑ (Q2 cycle)
(I/O in setup time)
20
—
—
ns
OS18
TioR
Port output rise time
(2)
—
—
—
40
15
15
72
32
32
ns
V
DD
= 2.0V
V
DD
= 3.3-5.0V
OS19
TioF
Port output fall time
(2)
—
—
—
28
15
15
55
30
30
ns
V
DD
= 2.0V
V
DD
= 3.3-5.0V
OS20* Tinp
INT pin input high or low time
25
—
—
ns
OS21* Trbp
PORTB interrupt-on-change new input
level time
level time
T
CY
—
—
ns
*
These parameters are characterized but not tested.
†
Data in “Typ” column is at 3.0V, 25
°C unless otherwise stated.
Note 1: Measurements are taken in RC mode where CLKOUT output is 4 x T
OSC
.
2: Includes OSC2 in CLKOUT mode.
V
DD
MCLR
Internal
POR
PWRT
Time-out
OSC
Start-Up Time
Internal Reset
(1)
Watchdog Timer
33
32
30
31
34
I/O pins
34
Note 1: Asserted low.
Reset
(1)