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PIC16C55A-04 Datasheet, PDF (64/218 Pages) Microchip Technology – EPROM/ROM-Based 8-Bit CMOS Microcontroller Series | |||
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PIC16C5X
PIC16C52
FIGURE 10-3: CLKOUT AND I/O TIMING - PIC16C52
OSC1
Q4
Q1
10
Q2
Q3
11
CLKOUT
I/O Pin
(input)
I/O Pin
(output)
Old Value
13
14
17
19 18
15
12
16
New Value
20, 21
Note: All tests must be done with speciï¬ed capacitive loads (see data sheet) 50 pF on I/O pins and CLKOUT.
TABLE 10-2: CLKOUT AND I/O TIMING REQUIREMENTS - PIC16C52
AC Characteristics
Standard Operating Conditions (unless otherwise speciï¬ed)
Operating Temperature
0°C ⤠TA ⤠+70°C (commercial)
â40°C ⤠TA ⤠+85°C (industrial)
Operating Voltage VDD range is described in Section 10.1.
Parameter
No.
Sym
Characteristic
Min
Typ(1)
Max
Units
10
TosH2ckL
OSC1â to CLKOUTâ(2)
11
TosH2ckH
OSC1â to CLKOUTâ(2)
12
TckR
CLKOUT rise time(2)
13
TckF
CLKOUT fall time(2)
14
TckL2ioV
CLKOUTâ to Port out valid(2)
15
TioV2ckH
Port in valid before CLKOUTâ(2)
16
TckH2ioI
Port in hold after CLKOUTâ(2)
17
TosH2ioV
OSC1â (Q1 cycle) to Port out valid(3)
â
15
30**
ns
â
15
30**
ns
â
5
15**
ns
â
5
15**
ns
â
â
40**
ns
0.25 TCY+30* â
â
ns
0*
â
â
ns
â
â
100*
ns
18
TosH2ioI
OSC1â (Q2 cycle) to Port input invalid
(I/O in hold time)
TBD
â
â
ns
19
TioV2osH
Port input valid to OSC1â
(I/O in setup time)
20
TioR
Port output rise time(3)
21
TioF
Port output fall time(3)
TBD
â
â
ns
â
10
25**
ns
â
10
25**
ns
* These parameters are characterized but not tested.
** These parameters are design targets and are not tested. No characterization data available at this time.
Note 1: Data in the Typical (âTypâ) column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance only
and are not tested.
2: Measurements are taken in RC Mode where CLKOUT output is 4 x TOSC.
3: See Figure 10-1 for loading conditions.
DS30453B-page 64
Preliminary
© 1998 Microchip Technology Inc.
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