PIC16C57C-RC/JW 查看數據表（PDF） - Microchip Technology
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PIC16C57C-RC/JW Datasheet PDF : 192 Pages
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PIC16C5X
12.7 Timing Diagrams and Specifications
FIGURE 12-2:
EXTERNAL CLOCK TIMING - PIC16C54/55/56/57
Q4
OSC1
CLKOUT
Q1
Q2
Q3
Q4
Q1
1
3
3
4
4
2
TABLE 12-1: EXTERNAL CLOCK TIMING REQUIREMENTS - PIC16C54/55/56/57
AC Characteristics
Standard Operating Conditions (unless otherwise specified)
Operating Temperature
0°C TA +70°C for commercial
–40°C TA +85°C for industrial
–40°C TA +125°C for extended
Param
No.
Symbol
Characteristic
Min
1A
FOSC
External CLKIN Frequency(1) DC
DC
DC
DC
DC
Oscillator Frequency(1)
DC
0.1
4.0
4.0
4.0
DC
* These parameters are characterized but not tested.
Typ†
—
—
—
—
—
—
—
—
—
—
—
Max Units
Conditions
4.0 MHz XT OSC mode
10 MHz 10 MHz mode
20 MHz HS OSC mode (Comm/Ind)
16 MHz HS OSC mode (Ext)
40 kHz LP OSC mode
4.0 MHz RC OSC mode
4.0 MHz XT OSC mode
10 MHz 10 MHz mode
20 MHz HS OSC mode (Comm/Ind)
16 MHz HS OSC mode (Ext)
40 kHz LP OSC mode
† Data in the Typical (“Typ”) column is at 5.0V, 25°C unless otherwise stated. These parameters are for design
guidance only and are not tested.
Note 1: 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.
When an external clock input is used, the “max” cycle time limit is “DC” (no clock) for all devices.
2: Instruction cycle period (TCY) equals four times the input oscillator time base period.
DS30453E-page 74
Preliminary
1997-2013 Microchip Technology Inc.
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