PIC16CR54C
TABLE 10-1: EXTERNAL CLOCK TIMING REQUIREMENTS - PIC16CR54C (CONTINUED)
AC Characteristics
Standard Operating Conditions (unless otherwise specified)
Operating Temperature
0°C ≤ TA ≤ +70°C (commercial)
–40°C ≤ TA ≤ +85°C (industrial)
Operating Voltage VDD range is described in Section 10.1
Parameter
(1)
No.
Sym
Characteristic
Min Typ
Max Units
Conditions
(3)
2
3
TCY
Instruction Cycle Time
—
50*
20*
2.0*
—
4/FOSC
—
—
—
ns
ns
µs
ns
ns
ns
TosL, TosH Clock in (OSC1) Low or High Time
—
—
—
—
—
—
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 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.
DS40191A-page 58
Preliminary
1998 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
