PIC18F-LF1XK50 Datasheet, PDF (383/420 Pages) Microchip Technology – 20-Pin USB Flash Microcontrollers

PIC18F/LF1XK50
FIGURE 27-7:
CLKOUT AND I/O TIMING
Cycle
FOSC
CLKOUT
Write
Q4
I/O pin
(Input)
I/O pin
(Output)
Old Value
Fetch
Q1
OS11
OS19
OS13
Read
Q2
OS20
OS21
OS16
OS17
OS15
OS14
OS18, OS19
Execute
Q3
OS12
OS18
New Value
TABLE 27-4: CLKOUT AND I/O TIMING PARAMETERS
Standard Operating Conditions (unless otherwise stated)
Operating Temperature -40°C TA +125°C
Param
No.
Sym
Characteristic
Min
Typ†
OS11
OS12
OS13
OS14
OS15
OS16
OS17
OS18
TosH2ckL
TosH2ckH
TckL2ioV
TioV2ckH
TosH2ioV
TosH2ioI
TioV2osH
TioR
Fosc to CLKOUT ⁽¹⁾
Fosc to CLKOUT ⁽¹⁾
CLKOUT to Port out valid⁽¹⁾
Port input valid before CLKOUT⁽¹⁾
Fosc (Q1 cycle) to Port out valid
Fosc (Q2 cycle) to Port input invalid
(I/O in hold time)
Port input valid to Fosc(Q2 cycle)
(I/O in setup time)
Port output rise time
—
—
—
—
—
—
TOSC + 200 ns —
—
50
50
—
20
—
—
90
—
55
OS19 TioF
OS20* Tinp
Port output fall time
INT pin input high or low time
—
60
—
44
25
—
OS21* Trbp
PORTB interrupt-on-change new input
TCY
—
level time
* 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 TOSC.
Max
70
72
20
—
70*
—
—
140
80
80
60
—
—
Units Conditions
ns VDD = 3.0-5.0V
ns VDD = 3.0-5.0V
ns
ns
ns VDD = 3.0-5.0V
ns VDD = 3.0-5.0V
ns
ns VDD = 2.0V
VDD = 3.3-5.0V
ns VDD = 2.0V
VDD = 3.3-5.0V
ns
ns
 2010 Microchip Technology Inc.
Preliminary
DS41350E-page 383