PIC16C57C-HSI/SO 查看數據表（PDF） - Microchip Technology

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PIC16C57C-HSI/SO

EPROM/ROM-Based 8-bit CMOS Microcontroller Series

Microchip Technology 

PIC16C5X

TABLE 15-1: EXTERNAL CLOCK TIMING REQUIREMENTS - PIC16C54A

AC Characteristics

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

Param

No.

1

2

3

Symbol

Characteristic

Min Typ† Max Units

Conditions

TOSC External CLKIN Period(1) 250

500

250

100

50

5.0

Oscillator Period(1)

250

500

250

500

250

100

50

5.0

Tcy

Instruction Cycle Time(2) —

TosL, TosH Clock in (OSC1) Low or 85*

High Time

20*

2.0*

—

—

—

—

—

—

—

—

—

—

—

—

—

—

4/FOSC

—

—

—

—

—

—

—

—

—

—

—

10,000

—

250

250

250

200

—

—

—

—

ns XT OSC mode

ns XT OSC mode (PIC16LV54A)

ns HS OSC mode (04)

ns HS OSC mode (10)

ns HS OSC mode (20)

s LP OSC mode

ns RC OSC mode

ns RC OSC mode (PIC16LV54A)

ns XT OSC mode

ns XT OSC mode (PIC16LV54A)

ns HS OSC mode (04)

ns HS OSC mode (10)

ns HS OSC mode (20)

s LP OSC mode

—

ns XT oscillator

ns HS oscillator

s LP oscillator

4

TosR, TosF Clock in (OSC1) Rise or —

—

25* ns XT oscillator

Fall Time

—

—

25* ns HS oscillator

—

—

50* ns LP oscillator

* 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.

DS30453E-page 112

Preliminary

 1997-2013 Microchip Technology Inc.

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