PIC16C5X
PIC16CR54A
TABLE 13-2: EXTERNAL CLOCK TIMING REQUIREMENTS - PIC16CR54A (CON’T)
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
(1)
No.
Sym
Characteristic
Min Typ
Max Units
Conditions
XT osc mode
(2)
1
TOSC
External CLKIN Period
250
250
100
50
—
—
—
—
ns
ns
ns
ns
µs
ns
ns
ns
ns
ns
µs
—
ns
ns
µs
ns
ns
ns
HS osc mode (04)
HS osc mode (10)
HS osc mode (20)
LP osc mode
—
—
—
—
5.0
250
250
250
100
50
—
—
(2)
Oscillator Period
—
—
RC osc mode
—
10,000
250
250
250
200
—
XT osc mode
—
HS osc mode (04)
HS osc mode (10)
HS osc mode (20)
LP osc mode
—
—
5.0
—
—
(3)
2
3
TCY
Instruction Cycle Time
4/FOSC
—
TosL, TosH Clock in (OSC1) Low or High Time
50*
20*
2.0*
—
—
XT oscillator
HS oscillator
LP oscillator
XT oscillator
HS oscillator
LP oscillator
—
—
—
—
4
TosR, TosF Clock in (OSC1) Rise or Fall Time
—
25*
25*
50*
—
—
—
—
*
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.
DS30453B-page 98
Preliminary
1998 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
