PIC12C67X Datasheet, PDF (102/129 Pages) Microchip Technology – 8-Pin, 8-Bit CMOS Microcontroller with A/D Converter and EEPROM Data Memory

PIC12C67X
FIGURE 12-6: CLKOUT AND I/O TIMING
OSC1
Q4
Q1
10
Q2
Q3
11
CLKOUT
I/O Pin
(input)
13
14
17
19 ¹⁸
15
12
16
I/O Pin
(output)
old value
new value
20, 21
Note: Refer to Figure 12-4 for load conditions.
TABLE 12-3: CLKOUT AND I/O TIMING REQUIREMENTS
Param Sym
No.
Characteristic
Min Typ† Max Units Conditions
10* TosH2ckL OSC1↑ to CLKOUT↓
—
75
200
ns Note 1
11* TosH2ckH OSC1↑ to CLKOUT↑
—
75
200
ns Note 1
12* TckR
CLKOUT rise time
—
35
100
ns Note 1
13* TckF
CLKOUT fall time
—
35
100
ns Note 1
14* TckL2ioV CLKOUT ↓ to Port out valid
—
— 0.5TCY + 20 ns Note 1
15* TioV2ckH Port in valid before CLKOUT ↑
TOSC + 200 —
—
ns Note 1
16* TckH2ioI Port in hold after CLKOUT ↑
0
—
—
ns Note 1
17* TosH2ioV OSC1↑ (Q1 cycle) to Port out valid
—
50
150
ns
18* TosH2ioI OSC1↑ (Q2 cycle) to Port PIC12C67X
100
—
—
ns
18A*
input invalid (I/O in hold _PIC12LC67X
200
—
—
ns
time)
19* TioV2osH Port input valid to OSC1↑ (I/O in setup
time)
0
—
—
ns
20* TioR
Port output rise time
PIC12C67X
—
10
40
ns
20A*
PIC12LC67X
—
—
80
ns
21* TioF
Port output fall time
PIC12C67X
—
10
40
ns
21A*
PIC12LC67X
—
—
80
ns
22††* Tinp
GP2/INT pin high or low time
TCY
—
—
ns
23††* Trbp
GP0/GP1/GP3 change INT high or low
time
TCY
—
—
ns
*
†
††
Note 1:
These parameters are characterized but not tested.
Data in "Typ" column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance only and are not
tested.
These parameters are asynchronous events not related to any internal clock edge.
Measurements are taken in EXTRC and INTRC modes where CLKOUT output is 4 x TOSC.
DS30561B-page 102
© 1999 Microchip Technology Inc.