PIC16F1847_13 Datasheet, PDF (361/440 Pages) Microchip Technology – 18/20/28-Pin Flash Microcontrollers with XLP Technology

PIC16(L)F1847
FIGURE 30-7:
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 30-4: 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† Max. Units Conditions
OS11 TosH2ckL FOSC to CLKOUT (Note 1)
—
— 70 ns VDD = 3.3-5.0V
OS12 TosH2ckH FOSC to CLKOUT (Note 1)
—
— 72 ns VDD = 3.3-5.0V
OS13 TckL2ioV CLKOUT to Port out valid (Note 1)
—
— 20 ns
OS14 TioV2ckH Port input valid before CLKOUT
(Note 1)
TOSC + 200 ns — — ns
OS15 TosH2ioV Fosc (Q1 cycle) to Port out valid
—
50 70* ns VDD = 3.3-5.0V
OS16 TosH2ioI Fosc (Q2 cycle) to Port input invalid
(I/O in hold time)
50
— — ns VDD = 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 72 ns VDD = 1.8V
—
15 32
VDD = 3.3-5.0V
OS19* TioF
Port output fall time
—
28 55 ns VDD = 1.8V
—
15 30
VDD = 3.3-5.0V
OS20* Tinp
INT pin input high or low time
25
— — ns
OS21* Tioc
Interrupt-on-change new input level
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 TOSC.
 2011-2013 Microchip Technology Inc.
Preliminary
DS40001453D-page 361