参数资料
型号: PIC16LC716-04/SS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 4 MHz, RISC MICROCONTROLLER, PDSO20
封装: 0.209 INCH, PLASTIC, MO-150, SSOP-20
文件页数: 89/106页
文件大小: 1718K
代理商: PIC16LC716-04/SS
2005 Microchip Technology Inc.
DS41106B-page 81
PIC16C712/716
12.4.3
TIMING DIAGRAMS AND SPECIFICATIONS
FIGURE 12-4:
EXTERNAL CLOCK TIMING
TABLE 12-2:
EXTERNAL CLOCK TIMING REQUIREMENTS
Param
No.
Sym.
Characteristic
Min.
Typ
Max.
Units
Conditions
1A
FOSC
External CLKIN Frequency
(Note 1)
DC
4
MHz
RC and XT osc modes
DC
4
MHz
HS osc mode (-04)
DC
20
MHz
HS osc mode (-20)
DC
200
kHz
LP osc mode
Oscillator Frequency
(Note 1)
DC
4
MHz
RC osc mode
0.1
4
MHz
XT osc mode
4
20
MHz
HS osc mode
5
200
kHz
LP osc mode
1TOSC
External CLKIN Period
(Note 1)
250
ns
RC and XT osc modes
250
ns
HS osc mode (-04)
50
ns
HS osc mode (-20)
5—
μs
LP osc mode
Oscillator Period
(Note 1)
250
ns
RC osc mode
250
10,000
ns
XT osc mode
250
250
ns
HS osc mode (-04)
50
250
ns
HS osc mode (-20)
5—
μs
LP osc mode
2TCY
Instruction Cycle Time (Note 1)
200
DC
ns
TCY = 4/FOSC
3*
TosL,
TosH
External Clock in (OSC1) High or
Low Time
100
ns
XT oscillator
2.5
μs
LP oscillator
15
ns
HS oscillator
4*
TosR,
TosF
External Clock in (OSC1) Rise or
Fall Time
25
ns
XT oscillator
50
ns
LP 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.
Note1: Instruction cycle period (TCY) 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 the OSC1/CLKIN pin.
When an external clock input is used, the “Max.” cycle time limit is “DC” (no clock) for all devices.
3
4
1
2
Q4
Q1
Q2
Q3
Q4
Q1
OSC1
CLKOUT
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