PIC16C54A
PIC16C5X
14.7
Timing Diagrams and Specifications
FIGURE 14-2: EXTERNAL CLOCK TIMING - PIC16C54A
Q4
Q3
Q4
4
Q1
Q1
Q2
OSC1
1
3
3
4
2
CLKOUT
TABLE 14-2: EXTERNAL CLOCK TIMING REQUIREMENTS - PIC16C54A
AC Characteristics Standard Operating Conditions (unless otherwise specified)
Operating Temperature
0°C ≤ TA ≤ +70°C (commercial)
–40°C ≤ TA ≤ +85°C (industrial)
–20°C ≤ TA ≤ +85°C (industrial - PIC16LV54A-02I)
–40°C ≤ TA ≤ +125°C (extended)
Operating Voltage VDD range is described in Section 14.1, Section 14.2 and Section 14.3.
Parameter
No.
(1)
Sym
Characteristic
Min Typ
Max Units
Conditions
(2)
FOSC
External CLKIN Frequency
DC
DC
DC
DC
DC
DC
DC
DC
0.1
0.1
4
—
—
—
—
—
—
—
—
—
—
—
—
—
—
4.0
2.0
4.0
10
MHz XT osc mode
MHz XT osc mode (PIC16LV54A)
MHz HS osc mode (04)
MHz HS osc mode (10)
MHz HS osc mode (20)
kHz LP osc mode
20
200
4.0
2.0
4.0
2.0
4.0
10
(2)
Oscillator Frequency
MHz RC osc mode
MHz RC osc mode (PIC16LV54A)
MHz XT osc mode
MHz XT osc mode (PIC16LV54A)
MHz HS osc mode (04)
MHz HS osc mode (10)
MHz HS osc mode (20)
kHz LP osc mode
4
4
20
5
200
*
These parameters are characterized but not tested.
Note 1: Data in the Typical (“Typ”) column is at 5V, 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 condi-
tions 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 111
MICROCHIP [ MICROCHIP ]
