参数资料
型号: RFPIC12F675F-I/SS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PDSO20
封装: 0.209 INCH, PLASTIC, MO-150, SSOP-20
文件页数: 4/123页
文件大小: 5438K
代理商: RFPIC12F675F-I/SS
2003 Microchip Technology Inc.
Preliminary
DS70091A-page 99
rfPIC12F675
13.12 AC CHARACTERISTICS: rfPIC12F675 (INDUSTRIAL, EXTENDED)
FIGURE 13-5:
EXTERNAL CLOCK TIMING
TABLE 13-1:
EXTERNAL CLOCK TIMING REQUIREMENTS
Param
No.
Sym
Characteristic
Min
Typ
Max
Units
Conditions
F
OSC
External CLKIN Frequency(1)
DC
37
kHz
LP Osc mode
DC
4
MHz
XT mode
DC
20
MHz
HS mode
DC
20
MHz
EC mode
Oscillator Frequency(1)
5
37
kHz
LP Osc mode
4
MHz
INTOSC mode
DC
4
MHz
RC Osc mode
0.1
4
MHz
XT Osc mode
1
20
MHz
HS Osc mode
1
T
OSC
External CLKIN Period(1)
27
s
LP Osc mode
50
ns
HS Osc mode
50
ns
EC Osc mode
250
ns
XT Osc mode
Oscillator Period(1)
27
200
s
LP Osc mode
250
ns
INTOSC mode
250
ns
RC Osc mode
250
10,000
ns
XT Osc mode
50
1,000
ns
HS Osc mode
2
T
CY
Instruction Cycle Time(1)
200
T
CY
DC
ns
T
CY = 4/FOSC
3
TosL,
TosH
External CLKIN (OSC1) High
External CLKIN Low
2*
s
LP oscillator, T
OSC L/H duty cycle
20*
ns
HS oscillator, T
OSC L/H duty
cycle
100 *
ns
XT oscillator, T
OSC L/H duty cycle
4
TosR,
TosF
External CLKIN Rise
External CLKIN Fall
50*
ns
LP oscillator
25*
ns
XT oscillator
15*
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
CLKOUT
Q4
Q1
Q2
Q3
Q4
Q1
1
2
3
4
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