PIC16F627-04 Microchip Technology, PIC16F627-04 Datasheet - Page 139

• Manufacturer Part Number: PIC16F627-04
• Description: FLASH-Based 8-Bit CMOS Microcontrollers
• Manufacturer: Microchip Technology

17.5
FIGURE 17-6: EXTERNAL CLOCK TIMING
TABLE 17-4:
Parameter
1999 Microchip Technology Inc.
No.
1
2
3
4
5
CLKOUT
OSC1
Timing Diagrams and Specifications
Fosc
Tosc
Tcy
TosL,
TosH
INTRC Internal Calibrated ER
ER
Sym
EXTERNAL CLOCK TIMING REQUIREMENTS
External CLKIN Frequency
(Note 1)
Oscillator Frequency
(Note 1)
External CLKIN Period
(Note 1)
Oscillator Period
(Note 1)
Instruction Cycle Time (Note 1) 1.0
External CLKIN (OSC1) High
External CLKIN Low
External Biased ER Frequency 10kHz
Q4
Characteristic
Q1
1
Preliminary
Q2
DC
DC
DC
0.1
1
250
50
5
250
250
50
5
100 *
3.65
Min
2
—
—
—
—
—
—
—
4
37
—
—
—
—
—
—
250
27
T
—
4.00
CY
Typ†
3
Q3
4
20
200
4
4
20
200
—
—
—
—
10,000 ns
1,000
DC
—
4.28
8MHz
3
Max
MHz
MHz
kHz
MHz
MHz
MHz
kHz
MHz
kHz
ns
ns
ns
ns
ns
ns
ns
MHz
Units
s
s
s
Q4
4
XT and ER osc mode,
V
HS osc mode
LP osc mode
ER osc mode, V
XT osc mode
HS osc mode
LP osc mode
INTRC mode (fast)
INTRC mode (slow)
XT and ER osc mode
HS osc mode
LP osc mode
ER osc mode
XT osc mode
HS osc mode
LP osc mode
INTRC mode (fast)
INTRC mode (slow)
T
XT oscillator, T
cycle
V
V
PIC16F62X
CY
DD
DD
DD
4
=5.0V
= 4/F
= 5.0V
= 5.0V
Conditions
OSC
DS40300B-page 139
Q1
OSC
DD
=5.0V
L/H duty