PIC16CR57B-04E/SS データシートの表示（PDF） - Microchip Technology

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PIC16CR57B-04E/SS

EPROM/ROM-Based 8-Bit CMOS Microcontroller Series

Microchip Technology 

PIC16C5X

PIC16CR57B

TABLE 15-2: EXTERNAL CLOCK TIMING REQUIREMENTS - PIC16CR57B (CON’T)

AC Characteristics

Standard Operating Conditions (unless otherwise specified)

Operating Temperature

0°C ≤ TA ≤ +70°C (commercial)

–40°C ≤ TA ≤ +85°C (industrial)

–40°C ≤ TA ≤ +125°C (extended)

Operating Voltage VDD range is described in Section 15.1, Section 15.2 and Section 15.3.

Parameter

No.

Sym

Characteristic

Min Typ(1) Max Units

Conditions

1

TOSC External CLKIN Period(2)

250 —

— ns XT osc mode

250 —

— ns HS osc mode (04)

100 —

— ns HS osc mode (10)

50 —

— ns HS osc mode (20)

Oscillator Period(2)

5.0 —

250 —

— µs LP osc mode

— ns RC osc mode

250 — 10,000 ns XT osc mode

250 — 250 ns HS osc mode (04)

100 — 250 ns HS osc mode (10)

50 — 250 ns HS osc mode (20)

2

TCY

Instruction Cycle Time(3)

5.0 — 200

— 4/FOSC —

µs LP osc mode

—

3

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

— ns XT oscillator

20* —

— ns HS oscillator

2.0* —

— µs LP oscillator

4

TosR, TosF Clock in (OSC1) Rise or Fall Time

—

—

25* ns XT oscillator

—

—

25* ns HS oscillator

—

—

50* ns LP oscillator

* These parameters are characterized but not tested.

Note 1: 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.

2: 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.

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

DS30453B-page 126

Preliminary

© 1998 Microchip Technology Inc.

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