PIC16F737-I Datasheet, PDF (226/276 Pages) Microchip Technology – 28/40/44-Pin, 8-Bit CMOS Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

PIC16F7X7
FIGURE 18-6:
OSC1
CLKO AND I/O TIMING
Q4
Q1
10
CLKO
I/O pin
(Input)
13
14
17
I/O pin
(Output)
Old Value
20, 21
Note: Refer to Figure 18-4 for load conditions.
Q2
19 ¹⁸
15
Q3
11
12
16
New Value
TABLE 18-5: CLKO AND I/O TIMING REQUIREMENTS
Param
No.
Symbol
Characteristic
Min
Typ†
Max
Units Conditions
10*
TOSH2CKL OSC1 ↑ to CLKO ↓
—
75
200
ns (Note 1)
11*
TOSH2CKH OSC1 ↑ to CLKO ↑
—
75
200
ns (Note 1)
12*
TCKR
CLKO Rise Time
—
35
100
ns (Note 1)
13*
TCKF
CLKO Fall Time
—
35
100
ns (Note 1)
14* TCKL2IOV CLKO ↓ to Port Out Valid
—
— 0.5 TCY + 20 ns (Note 1)
15* TIOV2CKH Port In Valid before CLKO ↑
TOSC + 200 —
—
ns (Note 1)
16* TCKH2IOI Port In Hold after CLKO ↑
0
—
—
ns (Note 1)
17* TOSH2IOV OSC1 ↑ (Q1 cycle) to Port Out Valid
—
100
255
ns
18* TOSH2IOI OSC1 ↑ (Q2 cycle) to PIC16F7X7
Port Input Invalid (I/O in _PIC16LF7X7
hold time)
100
—
—
ns
200
—
—
ns
19* TIOV2OSH Port Input Valid to OSC1 ↑ (I/O in setup time)
0
—
—
ns
20*
TIOR
Port Output Rise Time PIC16F7X7
—
10
40
ns
PIC16LF7X7
—
—
145
ns
21*
TIOF
Port Output Fall Time PIC16F7X7
—
10
40
ns
PIC16LF7X7
—
—
145
ns
22††* TINP
INT pin High or Low Time
TCY
—
—
ns
23††* TRBP
RB7:RB4 Change INT High or Low Time
TCY
—
—
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 asynchronous events not related to any internal clock edges.
Note 1: Measurements are taken in RC mode, where CLKO output is 4 x TOSC.
DS30498C-page 224
 2004 Microchip Technology Inc.