Microchip Technology AC244045 데이터 시트
2010-2012 Microchip Technology Inc.
DS41440C-page 363
PIC16(L)F1825/1829
TABLE 30-4:
CLKOUT AND I/O TIMING PARAMETERS
FIGURE 30-8:
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 F
OSC
to CLKOUT
(1)
—
—
70
ns
V
DD
= 3.3-5.0V
OS12
TosH2ckH F
OSC
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
—
—
—
40
15
15
72
32
32
ns
V
DD
= 1.8V
V
DD
= 3.3-5.0V
OS19* TioF
Port output fall time
—
—
—
28
15
15
55
30
30
ns
V
DD
= 1.8V
V
DD
= 3.3-5.0V
OS20* Tinp
INT pin input high or low time
25
—
—
ns
OS21* Tioc
Interrupt-on-change new input level
time
time
25
—
—
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
.
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)