參數(shù)資料
型號(hào): PIC16LC715
廠商: Microchip Technology Inc.
英文描述: 8-Bit CMOS Microcontrollers with A/D Converter
中文描述: 8位CMOS微控制器與A / D轉(zhuǎn)換器
文件頁數(shù): 141/176頁
文件大?。?/td> 803K
代理商: PIC16LC715
1997 Microchip Technology Inc.
DS30272A-page 141
PIC16C71X
Applicable Devices
710 71 711 715
15.5
Timing Diagrams and Specifications
FIGURE 15-2: EXTERNAL CLOCK TIMING
TABLE 15-2:
EXTERNAL CLOCK TIMING REQUIREMENTS
Parameter
No.
Sym
Characteristic
Min
Typ
Max
Units
Conditions
Fosc
External CLKIN Frequency
(Note 1)
DC
DC
DC
DC
DC
0.1
1
1
250
250
50
5
250
250
250
50
5
1.0
50
2.5
10
25
50
15
T
CY
4
4
20
200
4
4
4
20
10,000
1,000
1,000
DC
MHz
MHz
MHz
kHz
MHz
MHz
MHz
MHz
ns
ns
ns
μ
s
ns
ns
ns
ns
μ
s
μ
s
ns
μ
s
ns
ns
ns
ns
XT osc mode
HS osc mode (-04)
HS osc mode (-20)
LP osc mode
RC osc mode
XT osc mode
HS osc mode
HS osc mode
XT osc mode
HS osc mode (-04)
HS osc mode (-20)
LP osc mode
RC osc mode
XT osc mode
HS osc mode (-04)
HS osc mode (-20)
LP osc mode
T
CY
= 4/Fosc
XT oscillator
LP oscillator
HS oscillator
XT oscillator
LP oscillator
HS oscillator
Oscillator Frequency
(Note 1)
1
Tosc
External CLKIN Period
(Note 1)
Oscillator Period
(Note 1)
2
3
T
CY
TosL,
TosH
Instruction Cycle Time (Note 1)
External Clock in (OSC1) High or
Low Time
4
TosR,
TosF
External Clock in (OSC1) Rise or
Fall Time
Data in "Typ" column is at 5V, 25C 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 operation and/or higher than expected current con-
sumption. 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. OSC2 is disconnected
(has no loading) for the PIC16C71.
Note 1:
3
3
4
4
1
2
Q4
Q1
Q2
Q3
Q4
Q1
OSC1
CLKOUT
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