Datasheet

PIC12(L)F1571/2
DS40001723D-page 274  2013-2015 Microchip Technology Inc.
FIGURE 26-7: CLKOUT AND I/O TIMING
TABLE 26-10: CLKOUT AND I/O TIMING PARAMETERS
Standard Operating Conditions (unless otherwise stated)
Param.
No.
Sym. Characteristic Min. Typ† Max. Units Conditions
OS11 TosH2ckL FOSC to CLKOUT
(1)
— — 70 ns 3.3V  VDD 5.0V
OS12 TosH2ckH F
OSC to CLKOUT
(1)
— — 72 ns 3.3V  VDD 5.0V
OS13 TckL2ioV CLKOUT
 to Port Out Valid
(1)
— — 20 ns
OS14 TioV2ckH Port Input Valid Before CLKOUT

(1)
TOSC + 200 ns — — ns
OS15 TosH2ioV Fosc
 (Q1 cycle) to Port Out Valid — 50 70* ns 3.3V  VDD 5.0V
OS16 TosH2ioI Fosc
 (Q2 cycle) to Port Input Invalid
(I/O in setup time)
50 — — ns 3.3V  VDD 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
72
32
ns V
DD = 1.8V,
3.3V
 VDD 5.0V
OS19* TioF Port Output Fall Time —
—
28
15
55
30
ns V
DD = 1.8V,
3.3V
 VDD 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 EXTRC mode where CLKOUT output is 4 x TOSC.
FOSC
CLKOUT
I/O pin
(Input)
I/O pin
(Output)
Q4
Q1
Q2 Q3
OS11
OS19
OS13
OS15
OS18, OS19
OS20
OS21
OS17
OS16
OS14
OS12
OS18
Old Value
New Value
Write Fetch Read ExecuteCycle