PIC16C67-04/SO 查看數據表（PDF） - Microchip Technology

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PIC16C67-04/SO

8-Bit CMOS Microcontrollers

Microchip Technology 

PIC16C6X

Applicable Devices 61 62 62A R62 63 R63 64 64A R64 65 65A R65 66 67

FIGURE 16-3: CLKOUT AND I/O TIMING

OSC1

Q4

Q1

10

CLKOUT

13 14

I/O Pin

(input)

17

I/O Pin

(output)

old value

20, 21

Note: Refer to Figure 16-1 for load conditions.

Q2

19

18

15

Q3

11

12

16

new value

TABLE 16-3: CLKOUT AND I/O TIMING REQUIREMENTS

Parameter Sym

No.

Characteristic

Min

Typ† Max Units Conditions

10*

TosH2ckL OSC1↑ to CLKOUT↓

—

15

30

ns

Note 1

11*

TosH2ckH OSC1↑ to CLKOUT↑

—

15

30

ns

Note 1

12*

TckR

CLKOUT rise time

—

5

15

ns

Note 1

13*

TckF

CLKOUT fall time

—

5

15

ns

Note 1

14*

TckL2ioV CLKOUT ↓ to Port out valid

—

— 0.5TCY + 20 ns

Note 1

15*

TioV2ckH Port in valid before CLKOUT ↑

0.25TCY + 25 —

—

ns

Note 1

16*

TckH2ioI Port in hold after CLKOUT ↑

0

—

—

ns

Note 1

17*

TosH2ioV OSC1↑ (Q1 cycle) to Port out valid

—

— 80 - 100 ns

18*

TosH2ioI OSC1↑ (Q2 cycle) to Port input invalid

TBD

—

—

ns

(I/O in hold time)

19*

TioV2osH Port input valid to OSC1↑ (I/O in setup

TBD

—

—

ns

time)

20*

TioR

Port output rise time

PIC16C61

—

10

25

ns

PIC16LC61

—

—

60

ns

21*

TioF

Port output fall time

PIC16C61

—

10

25

ns

PIC16LC61

—

—

60

ns

22††*

Tinp

RB0/INT pin high or low time

20

—

—

ns

23††*

Trbp

RB7:RB4 change int high or low time

20

—

—

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 edges.

Measurements are taken in RC Mode where CLKOUT output is 4 x TOSC.

DS30234D-page 170

© 1997 Microchip Technology Inc.

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