PIC16F57T-I/SO(2004) View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F57T-I/SO
(Rev.:2004)

Flash-Based, 8-Bit CMOS Microcontroller Series

Microchip Technology 

PIC16F5X

TABLE 11-1: EXTERNAL CLOCK TIMING REQUIREMENTS

Standard Operating Conditions (unless otherwise specified)

AC CHARACTERISTICS Operating Temperature -40°C ≤ TA ≤ +85°C for industrial

-40°C ≤ TA ≤ +125°C for extended

Parameter

No.

Sym

Characteristic

Min Typ† Max Units

Conditions

FOSC

External CLKIN Frequency(1) DC —

4.0 MHz XT Osc mode

DC —

20 MHz HS Osc mode

Oscillator Frequency(1)

DC —

DC —

200 kHz LP Osc mode

4.0 MHz RC Osc mode

0.1 —

4.0 MHz XT Osc mode

4.0 —

20 MHz HS Osc mode

5.0 —

200 kHz LP Osc mode

1

TOSC

External CLKIN Period(1)

250 —

—

ns XT Osc mode

50 —

—

ns HS Osc mode

Oscillator Period(1)

5.0 —

250 —

—

µs LP Osc mode

—

ns RC Osc mode

250 — 10,000 ns XT Osc mode

50 —

250 ns HS Osc mode

5.0 —

—

µs LP Osc mode

2

TCY

Instruction Cycle Time(2)

— 4/FOSC —

—

3

TosL, TosH Clock in (OSC1) Low or High 50* —

—

ns XT oscillator

Time

20* —

—

ns HS oscillator

2.0* —

—

µs LP oscillator

4

TosR, TosF Clock in (OSC1) Rise or Fall

——

25* ns XT oscillator

Time

——

5*

ns HS oscillator

——

50* ns LP oscillator

* These parameters are characterized but not tested.

† 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.

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.

DS41213C-page 66

 2004 Microchip Technology Inc.

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