PIC16C63A Microchip Technology, PIC16C63A Datasheet - Page 108

• Manufacturer Part Number: PIC16C63A
• Description: 28/40-Pin 8-Bit CMOS Microcontrollers
• Manufacturer: Microchip Technology

PIC16C63A/65B/73B/74B
14.4.3
FIGURE 14-2: EXTERNAL CLOCK TIMING
TABLE 14-2:
DS30605A-page 108
Note1:
Param
No.
1A
3*
4*
1
2
CLKOUT
OSC1
*
†
TIMING DIAGRAMS AND SPECIFICATIONS
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.
Instruction cycle period (T
based on characterization data for that particular oscillator type under standard operating conditions with the
device executing code. Exceeding these specified limits may result in an unstable oscillator operation and/or
higher than expected current consumption. All devices are tested to operate at "min." values with an external
clock applied to the OSC1/CLKIN pin.
When an external clock input is used, the "Max." cycle time limit is "DC" (no clock) for all devices.
Fosc
Tosc
T
TosL,
TosH
TosR,
TosF
CY
Sym
EXTERNAL CLOCK TIMING REQUIREMENTS
Characteristic
External CLKIN Frequency
(Note 1)
Oscillator Frequency
(Note 1)
External CLKIN Period
(Note 1)
Oscillator Period
(Note 1)
Instruction Cycle Time (Note 1)
External Clock in (OSC1) High or
Low Time
External Clock in (OSC1) Rise or
Fall Time
Q4
CY
) equals four times the input oscillator time-base period. All specified values are
Q1
1
Preliminary
Min
250
250
250
250
250
200
100
DC
DC
DC
DC
DC
0.1
2.5
50
50
15
—
—
—
4
5
5
5
Q2
Typ†
2
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
3
Q3
10,000
Max
200
200
250
250
DC
20
20
—
—
—
—
—
—
—
—
—
25
50
15
4
4
4
4
3
Units Conditions
MHz
MHz
MHz
MHz
MHz
MHz
kHz
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
s
s
s
Q4
4
RC and XT osc modes
HS osc mode (-04)
HS osc mode (-20)
LP osc mode
RC osc mode
XT osc mode
HS osc mode
LP osc mode
RC and XT osc modes
HS osc mode (-04)
HS osc mode (-20)
LP osc mode
RC osc mode
XT osc mode
HS osc mode (-04)
HS osc mode (-20)
LP osc mode
T
XT oscillator
LP oscillator
HS oscillator
XT oscillator
LP oscillator
HS oscillator
CY
= 4/F
1998 Microchip Technology Inc.
4
OSC
Q1