Microchip Technology MCP1630DM-DDBS1 Data Sheet

Page of 176
©
 2007 Microchip Technology Inc.
DS41211D-page 125
PIC12F683
15.8
AC Characteristics: PIC12F683 (Industrial, Extended)
FIGURE 15-4:
CLOCK TIMING
TABLE 15-1:
CLOCK OSCILLATOR TIMING REQUIREMENTS
Standard Operating Conditions (unless otherwise stated)
Operating temperature
-40°C 
 T
A
 
 +125°C
Param
No.
Sym
Characteristic
Min
Typ†
Max
Units
Conditions
OS01
F
OSC
External CLKIN Frequency
(1)
 
DC
37
kHz
LP Oscillator mode 
DC
4
MHz
XT Oscillator mode
DC
20
MHz
HS Oscillator mode
DC
20
MHz
EC Oscillator mode
Oscillator Frequency
(1)
 
32.768
kHz
LP Oscillator mode
0.1
4
MHz
XT Oscillator mode
1
20
MHz
HS Oscillator mode
DC
4
MHz
RC Oscillator mode 
OS02
T
OSC
External CLKIN Period
(1)
27
μ
s
LP Oscillator mode
250
ns
XT Oscillator mode
50
ns
HS Oscillator mode
50
ns
EC Oscillator mode
Oscillator Period
(1)
30.5
μ
s
LP Oscillator mode
250
10,000
ns
XT Oscillator mode
50
1,000
ns
HS Oscillator mode
250
ns
RC Oscillator mode
OS03
T
CY
Instruction Cycle Time
(1)
 200
T
CY
DC
ns
T
CY
 = 4/F
OSC
OS04*
TosH,
TosL
External CLKIN High,
External CLKIN Low
2
μ
s
LP oscillator
100
ns
XT oscillator
20
ns
HS oscillator
OS05*
TosR,
TosF
External CLKIN Rise,
External CLKIN Fall
0
ns
LP oscillator
0
ns
XT oscillator
0
ns
HS oscillator
*
These parameters are characterized but not tested.
Data in “Typ” column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance only and 
are not tested.
Note 1:
Instruction cycle period (T
CY
) equals four times the input oscillator time base period. 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. All devices are tested to operate at “min” values with an external 
clock applied to OSC1 pin. When an external clock input is used, the “max” cycle time limit is “DC” (no clock) for 
all devices.
OSC1/CLKIN
OSC2/CLKOUT
Q4
Q1
Q2
Q3
Q4
Q1
OS02
OS03
OS04
OS04
OSC2/CLKOUT
(LP,XT,HS Modes)
(CLKOUT Mode)