PIC14000-04 Microchip Technology, PIC14000-04 Datasheet - Page 111

• Manufacturer Part Number: PIC14000-04
• Description: 28-Pin Programmable Mixed Signal Controller
• Manufacturer: Microchip Technology

13.4
FIGURE 13-1: EXTERNAL CLOCK TIMING
TABLE 13-1:
Note 1: Instruction cycle period (T
1996 Microchip Technology Inc.
Parameter
†
CLKOUT
OSC1
No.
1
2
3
4
Timing Diagrams and Specifications
Data in “Typ” column is at 5V, 25 C unless otherwise stated. These parameters are for design guidance only
and are not tested.
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 pin.
When an external clock input is used, the “Max.” cycle time limit is “DC” (no clock) for all devices.
T
T
T
F
T
T
Sym
T
OS
OS
OS
OS
OSC
OSC
CY
EXTERNAL CLOCK TIMING REQUIREMENTS
R,
L,
H
F
Characteristic
External CLKIN Frequency (Note 1)
Oscillator Frequency (Note 1)
External CLKIN Period (Note 1)
Oscillator Period (Note 1)
Instruction Cycle Time (Note 1)
Clock in (OSC1) High or Low Time
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
Q2
Min
250
250
200
DC
DC
50
50
10
—
4
4
2
Typ†
—
—
—
—
—
—
—
—
—
—
—
3
Q3
Max
3
250
250
DC
20
20
15
—
—
—
4
4
4
Units
MHz
MHz
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
Q4
HS osc mode (PIC14000-04)
HS osc mode (PIC14000-20)
HS osc mode (PIC14000-04)
HS osc mode (PIC14000-20)
HS osc mode (PIC14000-04)
HS osc mode (PIC14000-20)
HS osc mode (PIC14000-04)
HS osc mode (PIC14000-20)
T
HS oscillator
HS oscillator
CY
= 4/F
PIC14000
OSC
4
Conditions
DS40122B-page 111
Q1