PIC16C641 Datasheet

IC型号：
PIC16C641
PDF描述：
8-Bit EPROM Microcontrollers with Analog Comparators
文件大小：
661.21KB
PDF页数：
137页
芯片厂家：
MICROCHIP

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PIC16C64X & PIC16C66X

12.5

Timing Diagrams and Speci铿乧ations

FIGURE 12-2: EXTERNAL CLOCK TIMING

OSC1

CLKOUT

TABLE 12-4:

Param

No.

EXTERNAL CLOCK TIMING REQUIREMENTS

Characteristic

External CLKIN Frequency

(1)

Min

Typ鈥?/div>

鈥?/div>

Max

Units

MHz

Conditions

XT and RC osc mode,

= 5.0V

HS osc mode

LP osc mode

RC osc mode, V

= 5.0V

XT osc mode

HS osc mode

LP osc mode

XT and RC osc mode

HS osc mode

LP osc mode

RC osc mode

XT osc mode

HS osc mode

LP osc mode

= F

OSC

XT osc mode

LP osc mode

HS osc mode

XT osc mode

LP osc mode

HS osc mode

Sym

Fosc

鈥?/div>

MHz

鈥?/div>

200 kHz

Oscillator Frequency

(1)

鈥?/div>

MHz

0.1

鈥?/div>

MHz

鈥?/div>

MHz

鈥?/div>

200 kHz

(1)

Tosc

External CLKIN Period

250

鈥?/div>

碌s

(1)

Oscillator Period

250

鈥?/div>

250

鈥?/div>

10,000 ns

鈥?/div>

250 ns

鈥?/div>

碌s

(1)

Instruction Cycle Time

200

鈥?/div>

TosL,

External Clock in (OSC1)

100

鈥?/div>

TosH

High or Low Time

2.5

鈥?/div>

碌s

鈥?/div>

TosR,

External Clock in (OSC1)

鈥?/div>

TosF

Rise or Fall Time

鈥?/div>

* These parameters are characterized but not tested.

鈥?Data in 鈥淭yp鈥?column is at 5.0V, 25掳C unless otherwise stated. These parameters are for design guidance only

and are not tested.

Note 1: Instruction cycle period (T

) equals four times the input oscillator time-base period. All speci铿乪d values are

based on characterization data for that particular oscillator type under standard operating conditions with

the device executing code. Exceeding these speci铿乪d limits may result in an unstable oscillator operation

and/or higher than expected current consumption. All devices are tested to operate at 鈥渕in.鈥?values with an

external clock applied to the OSC1 pin.

When an external clock input is used, the 鈥淢ax.鈥?cycle time limit is 鈥淒C鈥?(no clock) for all devices.

DS30559A-page 98

Preliminary

漏

1996 Microchip Technology Inc.

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