PIC12F510/16F506
TABLE 13-5: EXTERNAL CLOCK TIMING REQUIREMENTS
Standard Operating Conditions (unless otherwise specified)
AC CHARACTERISTICS
Operating Temperature -40°C ≤ TA ≤ +85°C (industrial),
-40°C ≤ TA ≤ +125°C (extended)
Para
Sym
No.
Characteristic
Min Typ(1)
Max Units
Conditions
1A
FOSC
TOSC
TCY
External CLKIN Frequency(2) DC
DC
—
—
4
MHz XT Oscillator mode
20
MHz HS/EC Oscillator mode
(PIC16F506 only)
DC
—
—
—
—
200
4
kHz LP Oscillator mode
MHz EXTRC Oscillator mode
MHz XT Oscillator mode
Oscillator Frequency(2)
—
0.1
4
4
20
MHz HS/EC Oscillator mode
(PIC16F506 only)
—
250
50
—
—
—
200
—
kHz LP Oscillator mode
ns XT Oscillator mode
1
External CLKIN Period(2)
Oscillator Period(2)
—
ns HS/EC Oscillator mode
(PIC16F506 only)
5
—
—
—
—
—
—
μs LP Oscillator mode
250
250
50
ns EXTRC Oscillator mode
10,000 ns XT Oscillator mode
250
ns HS/EC Oscillator mode
(PIC16F506 only)
5
—
—
—
—
—
—
μs LP Oscillator mode
ns
2
3
Instruction Cycle Time
200 4/FOSC
TosL,
TosH
Clock in (OSC1) Low or High 50*
—
—
—
ns XT Oscillator
μs LP Oscillator
ns HS/EC Oscillator
(PIC16F506 only)
Time
2*
10
4
TosR,
TosF
Clock in (OSC1) Rise or Fall
Time
—
—
—
—
—
—
25*
50*
15
ns XT Oscillator
ns LP Oscillator
ns HS/EC Oscillator
(PIC16F506 only)
*
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 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.
DS41268B-page 92
Preliminary
© 2006 Microchip Technology Inc.
ETC [ ETC ]
