PIC16HV540-04 View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16HV540-04

Enhanced PIC16C54 EPROM-Based 8-Bit CMOS Microcontroller With On-Chip Voltage Regulator

Microchip Technology 

PIC16HV540

10.4 Timing Diagrams and Specifications

FIGURE 10-2: EXTERNAL CLOCK TIMING - PIC16HV540

Q4

Q1

Q2

Q3

OSC1

1

3

3

2

CLKOUT

Q4

Q1

4

4

TABLE 10-1: EXTERNAL CLOCK TIMING REQUIREMENTS - PIC16HV540

AC Characteristics

Standard Operating Conditions (unless otherwise specified)

Operating Temperature 0°C ≤ TA ≤ +70°C (commercial)

–40°C ≤ TA ≤ +85°C (industrial)

Parameter

No.

Sym.

Characteristic

Min. Typ.(1)

Max.

Unit

s

Conditions

FOSC External CLKIN Frequency(2)

DC —

4.0 MHz RC osc mode

DC —

2.0 MHz HS osc mode

DC —

4.0 MHz XT osc mode

Oscillator Frequency(2)

DC —

DC —

200 kHz LP osc mode

4.0 MHz RC osc mode

0.1 —

0.1 —

2.0 MHz HS osc mode

4.0 MHz XT osc mode

1

TOSC External CLKIN Period(2)

5

—

250 —

250 —

200 kHz LP osc mode

— ns RC osc mode

— ns HS osc mode

Oscillator Period(2)

250 —

5.0 —

250 —

— ns XT osc mode

— µs LP osc mode

— ns RC osc mode

250 — 10,000 ns HS osc mode

250 — 10,000 ns XT osc mode

2

TCY Instruction Cycle Time(3)

50 —

200

— 4/FOSC —

µs LP osc mode

—

3

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

— ns XT oscillator

TosH

20* —

— ns HS oscillator

2.0* —

— µs LP oscillator

4

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

25* ns XT oscillator

TosF

——

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 VREG = 5V, VDD = 9V, 25°C unless otherwise stated. These parame-

ters 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.

 2000 Microchip Technology Inc.

Preliminary

DS40197B-page 65

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