CF745 datasheet(111/217 Pages) MICROCHIP

111 / 217 page

Preliminary

DS30453B-page 111

PIC16C54A

PIC16C5X

14.7

Timing Diagrams and Speciﬁcations

FIGURE 14-2: EXTERNAL CLOCK TIMING - PIC16C54A

TABLE 14-2:

EXTERNAL CLOCK TIMING REQUIREMENTS - PIC16C54A

AC Characteristics

Standard Operating Conditions (unless otherwise speciﬁed)

Operating Temperature

°C ≤ TA ≤ +70°C (commercial)

–40

°C ≤ TA ≤ +85°C (industrial)

–20

°C ≤ TA ≤ +85°C (industrial - PIC16LV54A-02I)

–40

°C ≤ TA ≤ +125°C (extended)

Operating Voltage VDD range is described in Section 14.1, Section 14.2 and Section 14.3.

Parameter

No.

Sym

Characteristic

Min

Typ

(1)

Max

Units

Conditions

FOSC

External CLKIN Frequency

(2)

—

4.0

MHz

XT osc mode

—

2.0

MHz

XT osc mode (PIC16LV54A)

—

4.0

MHz

HS osc mode (04)

—

MHz

HS osc mode (10)

—

MHz

HS osc mode (20)

—

200

kHz

LP osc mode

Oscillator Frequency

(2)

—

4.0

MHz

RC osc mode

—

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

MHz

HS osc mode (04)

—

MHz

HS osc mode (10)

—

MHz

HS osc mode (20)

—

200

kHz

LP osc mode

These parameters are characterized but not tested.

Note 1:

Data in the Typical (“Typ”) column is at 5V, 25

°C unless otherwise stated. These parameters are for design guidance only

and are not tested.

All speciﬁed values are based on characterization data for that particular oscillator type under standard operating condi-

tions 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.

Instruction cycle period (TCY) equals four times the input oscillator time base period.

OSC1

CLKOUT

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