參數(shù)資料
型號： PIC16CR7X
廠商： Microchip Technology Inc.
英文描述： 28/40-Pin, 8-Bit CMOS ROM Microcontrollers
中文描述： 28/40-Pin，8位微控制器的CMOS光盤
文件頁數(shù)： 126/172頁
文件大小： 1506K
代理商： PIC16CR7X
PIC16CR7X
DS21993C-page 124
2007 Microchip Technology Inc.
FIGURE 15-3:
EXTERNAL CLOCK TIMING
OSC1
CLKOUT
Q4
Q1
Q2
Q3
Q4
Q1
1
2
3
3
4
4
TABLE 15-1:
EXTERNAL CLOCK TIMING REQUIREMENTS
Parameter
No.
Symbol
Characteristic
Min
Typ
Max
Units
Conditions
F
OSC
External CLKIN Frequency
(Note 1)
DC
DC
DC
DC
0.1
4
5
1000
50
5
250
250
50
5
200
—
—
—
—
—
—
—
—
—
—
—
—
—
—
T
CY
1
MHz
MHz
kHz
MHz
MHz
MHz
kHz
ns
ns
ms
ns
ns
ns
ms
ns
XT osc mode
HS osc mode
LP osc mode
RC osc mode
XT osc mode
HS osc mode
LP osc mode
XT osc mode
HS osc mode
LP osc mode
RC osc mode
XT osc mode
HS osc mode
LP osc mode
T
CY
= 4/F
OSC
20
32
4
4
20
200
—
—
—
—
10,000
250
—
DC
Oscillator Frequency
(Note 1)
1
T
OSC
External CLKIN Period
(Note 1)
Oscillator Period
(Note 1)
2
T
CY
Instruction Cycle Time
(Note 1)
External Clock in (OSC1)
High or Low Time
3
TosL,
TosH
500
2.5
15
—
—
—
—
—
—
—
—
—
—
—
—
25
50
15
ns
ms
ns
ns
ns
ns
XT oscillator
LP oscillator
HS oscillator
XT oscillator
LP oscillator
HS oscillator
4
TosR,
TosF
External Clock in (OSC1)
Rise or Fall Time
Data in “Typ” column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance
only and are not tested.
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 oper-
ation 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.
Note 1:
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