PIC16C745/P Microchip Technology, PIC16C745/P Datasheet - Page 132

• Manufacturer Part Number: PIC16C745/P
• Description: 8-Bit CMOS Microcontrollers with USB
• Manufacturer: Microchip Technology

PIC16C745/765
FIGURE 16-5: CLKOUT AND I/O TIMING
TABLE 16-3:
DS41124A-page 132
Param
No.
Note 1: Measurements are taken in EC Mode where CLKOUT output is 4 x T
22††*
23††*
18A*
20A*
21A*
10*
11*
12*
13*
14*
15*
16*
17*
18*
19*
20*
21*
CLKOUT
I/O Pin
(output)
I/O Pin
(input)
* 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.
2: F
F
INT
Sym
T
T
T
T
T
T
T
T
T
T
T
T
T
T
OS
OS
OS
OS
RBP
Note: Refer to Figure 16-2 for load conditions.
CK
CK
CK
IO
CK
IO
IO
IO
INP
INT
V2
V2
R
F
H2
H2
R
F
L2
H2
H2
H2
= OSC1 when PLL
CK
OS
IO
CK
CK
IO
IO
IO
V
H
V
I
I
H
L
H
CLKOUT AND I/O TIMING REQUIREMENTS
Characteristic
OSC1 to CLKOUT
OSC1 to CLKOUT
CLKOUT rise time
CLKOUT fall time
CLKOUT
Port in valid before CLKOUT
Port in hold after CLKOUT
OSC1 (Q1 cycle) to Port out valid
OSC1 (Q2 cycle) to Port input invalid (I/O in hold
time)
Port input valid to OSC1 (I/O in setup time)
Port output rise time
Port output fall time
INT pin high or low time
RB<7:4> change INT high or low time
old value
Q4
to Port out valid
10
Advanced Information
13
17
14
20, 21
Q1
19
Min
T
OSC
18
100
200
T
T
—
—
—
—
—
—
—
—
—
—
OSC
0
0
CY
CY
+ 200
.
Q2
15
Typ† Max
75
75
35
35
50
10
10
—
—
—
—
—
—
—
—
—
—
0.5 T
200
200
100
100
150
1999 Microchip Technology Inc.
40
80
40
80
CY
—
—
—
—
—
—
—
11
+ 20
12
Units Conditions
new value
16
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Q3
Note 1
Note 1
Note 1
Note 1
Note 1
Note 1
Note 1