PIC16CR54A
PIC16C5X
13.7
Timing Diagrams and Specifications
FIGURE 13-2: EXTERNAL CLOCK TIMING - PIC16CR54A
Q4
Q3
Q4
4
Q1
Q1
Q2
OSC1
1
3
3
4
2
CLKOUT
TABLE 13-2: EXTERNAL CLOCK TIMING REQUIREMENTS - PIC16CR54A
AC Characteristics Standard Operating Conditions (unless otherwise specified)
Operating Temperature
0°C ≤ TA ≤ +70°C (commercial)
–40°C ≤ TA ≤ +85°C (industrial)
–40°C ≤ TA ≤ +125°C (extended)
Operating Voltage VDD range is described in Section 13.1, Section 13.2 and Section 13.3.
Parameter
No.
(1)
Sym
Characteristic
Min Typ
Max Units
Conditions
(2)
FOSC
External CLKIN Frequency
DC
DC
DC
DC
DC
DC
0.1
4.0
4.0
4.0
5.0
—
—
—
—
—
—
—
—
—
—
—
4.0
4.0
10
MHz XT osc mode
MHz HS osc mode (04)
MHz HS osc mode (10)
MHz HS osc mode (20)
kHz LP osc mode
20
200
4.0
4.0
4.0
10
(2)
Oscillator Frequency
MHz RC osc mode
MHz XT osc mode
MHz HS osc mode (04)
MHz HS osc mode (10)
MHz HS osc mode (20)
kHz LP osc mode
20
200
*
These parameters are characterized but not tested.
Note 1: Data in the Typical (“Typ”) column is at 5.0V, 25°C unless otherwise stated.These parameters are for design guidance only
and are not tested.
2: All specified values are 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.
When an external clock input is used, the “max” cycle time limit is “DC” (no clock) for all devices.
3: Instruction cycle period (TCY) equals four times the input oscillator time base period.
1998 Microchip Technology Inc.
Preliminary
DS30453B-page 97
MICROCHIP [ MICROCHIP ]
