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PIC16F84A Datasheet(PDF) 92 Page - Microchip Technology |
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PIC16F84A Datasheet(HTML) 92 Page - Microchip Technology |
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92 / 124 page  PIC16F8X PIC16CR83/84 DS30430C-page 92 © 1998 Microchip Technology Inc. 11.5 Timing Diagrams and Specifications FIGURE 11-3: EXTERNAL CLOCK TIMING OSC1 CLKOUT Q4 Q1 Q2 Q3 Q4 Q1 1 3 3 4 4 2 TABLE 11-3 EXTERNAL CLOCK TIMING REQUIREMENTS Parameter No. Sym Characteristic Min Typ† Max Units Conditions FOSC External CLKIN Frequency (1) DC — 2 MHz XT, RC osc PIC16LCR8X-04 DC — 4 MHz XT, RC osc PIC16CR8X-04 DC — 10 MHz HS osc PIC16CR8X-10 DC — 200 kHz LP osc PIC16LCR8X-04 Oscillator Frequency (1) DC — 2 MHz RC osc PIC16LCR8X-04 DC — 4 MHz RC osc PIC16CR8X-04 0.1 — 2 MHz XT osc PIC16LCR8X-04 0.1 — 4 MHz XT osc PIC16CR8X-04 1.0 — 10 MHz HS osc PIC16CR8X-10 DC — 200 kHz LP osc PIC16LCR8X-04 1 Tosc External CLKIN Period (1) 500 — — ns XT, RC osc PIC16LCR8X-04 250 — — ns XT, RC osc PIC16CR8X-04 100 — — ns HS osc PIC16CR8X-10 5.0 — — µs LP osc PIC16LCR8X-04 Oscillator Period (1) 500 — — ns RC osc PIC16LCR8X-04 250 — — ns RC osc PIC16CR8X-04 500 — 10,000 ns XT osc PIC16LCR8X-04 250 — 10,000 ns XT osc PIC16CR8X-04 100 — 1,000 ns HS osc PIC16CR8X-10 5.0 — — µs LP osc PIC16LCR8X-04 2 TCY Instruction Cycle Time (1) 0.4 4/Fosc DC µs 3 TosL, TosH Clock in (OSC1) High or Low Time 60 * — — ns XT osc PIC16LCR8X-04 50 * — — ns XT osc PIC16CR8X-04 2.0 * — — µs LP osc PIC16LCR8X-04 35 * — — ns HS osc PIC16CR8X-10 4 TosR, TosF Clock in (OSC1) Rise or Fall Time 25 * — — ns XT osc PIC16CR8X-04 50 * — — ns LP osc PIC16LCR8X-04 15 * — — ns HS osc PIC16CR8X-10 * These parameters are characterized but not tested. † Data in "Typ" column is at 5.0V, 25 °C unless otherwise stated. These parameters are for design guidance only and are not tested. Note 1: Instruction cycle period (TCY) equals four times the input oscillator time base period. 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. All devices are tested to operate at "min." values with an external clock applied to the OSC1 pin. When an external clock input is used, the "Max." cycle time limit is "DC" (no clock) for all devices. |
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