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PIC17C44-08/P Datasheet(PDF) 156 Page - Microchip Technology

Part # PIC17C44-08/P
Description  High-Performance 8-Bit CMOS EPROM/ROM Microcontroller
PDF  240 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC17C44-08/P Datasheet(HTML) 156 Page - Microchip Technology

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PIC17C4X
DS30412C-page 156
© 1996 Microchip Technology Inc.
Applicable Devices 42 R42 42A 43 R43 44
FIGURE 17-3: CLKOUT AND I/O TIMING
TABLE 17-3:
CLKOUT AND I/O TIMING REQUIREMENTS
Parameter
No.
Sym
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
TckH2ioV
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
—
—
100 ‡
ns
20
TioR
Port output rise time
—
10 ‡
35 ‡
ns
21
TioF
Port output fall time
—
10 ‡
35 ‡
ns
22
TinHL
INT pin high or low time
25 *
—
—
ns
23
TrbHL
RB7:RB0 change INT high or low time
25 *
—
—
ns
*
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 for design guidance only and are not tested, nor characterized.
Note 1:
Measurements are taken in EC Mode where OSC2 output = 4 x TOSC = TCY.
OSC1
OSC2 †
I/O Pin
(input)
I/O Pin
(output)
Q4
Q1
Q2
Q3
10
13
14
17
20, 21
22
23
15
11
12
16
old value
new value
† In EC and RC modes only.



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