PIC16CR54AT-RC/SO 查看數據表（PDF） - Microchip Technology

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PIC16CR54AT-RC/SO

EPROM/ROM-Based 8-bit CMOS Microcontroller Series

Microchip Technology 

PIC16C5X

15.6 Timing Diagrams and Specifications

FIGURE 15-2: EXTERNAL CLOCK TIMING - PIC16C54A

Q4

OSC1

CLKOUT

Q1

Q2

Q3

1

3

3

2

Q4

Q1

4

4

TABLE 15-1: EXTERNAL CLOCK TIMING REQUIREMENTS - PIC16C54A

AC Characteristics

Param

No.

Symbol

Standard Operating Conditions (unless otherwise specified)

Operating Temperature

0C  TA  +70C for commercial

–40C  TA  +85C for industrial

–20C  TA  +85C for industrial - PIC16LV54A-02I

–40C  TA  +125C for extended

Characteristic

Min Typ† Max Units

Conditions

FOSC

External CLKIN Fre-

quency(1)

DC

—

DC

—

4.0 MHz XT OSC mode

2.0 MHz XT OSC mode (PIC16LV54A)

DC

—

4.0 MHz HS OSC mode (04)

DC

—

10 MHz HS OSC mode (10)

DC

—

20 MHz HS OSC mode (20)

DC

—

Oscillator Frequency(1) DC

—

200 kHz LP OSC mode

4.0 MHz RC OSC mode

DC

—

2.0 MHz RC OSC mode (PIC16LV54A)

0.1

—

4.0 MHz XT OSC mode

0.1

—

2.0 MHz XT OSC mode (PIC16LV54A)

4.0

—

4.0 MHz HS OSC mode (04)

4.0

—

10 MHz HS OSC mode (10)

4.0

—

20 MHz HS OSC mode (20)

5.0

—

200 kHz LP OSC mode

* These parameters are characterized but not tested.

† Data in the Typical (“Typ”) column is based on characterization results at 25C. This data is for design guid-

ance only and is 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.

 1997-2013 Microchip Technology Inc.

Preliminary

DS30453E-page 111

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