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PIC16C64A Datasheet(PDF) 165 Page - Microchip Technology |
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PIC16C64A Datasheet(HTML) 165 Page - Microchip Technology |
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165 / 334 page  1997-2013 Microchip Technology Inc. DS30234E-page 165 PIC16C6X Applicable Devices 61 62 62A R62 63 R63 64 64A R64 65 65A R65 66 67 15.5 Timing Diagrams and Specifications FIGURE 15-2: EXTERNAL CLOCK TIMING TABLE 15-2: EXTERNAL CLOCK TIMING REQUIREMENTS Parameter No. Sym Characteristic Min Typ† Max Units Conditions Fosc External CLKIN Frequency (Note 1) DC — 4 MHz XT and RC osc mode DC — 4 MHz HS osc mode (-04) DC — 20 MHz HS osc mode (-20) DC — 200 kHz LP osc mode Oscillator Frequency (Note 1) DC — 4 MHz RC osc mode 0.1 — 4 MHz XT osc mode 1 — 4 MHz HS osc mode (-04) 1 — 20 MHz HS osc mode (-20) 1Tosc External CLKIN Period (Note 1) 250 — — ns XT and RC osc mode 250 — — ns HS osc mode (-04) 50 — — ns HS osc mode (-20) 5— — s LP osc mode Oscillator Period (Note 1) 250 — — ns RC osc mode 250 — 10,000 ns XT osc mode 250 — 1,000 ns HS osc mode (-04) 50 — 1,000 ns HS osc mode (-20) 5— — s LP osc mode 2TCY Instruction Cycle Time (Note 1) 1.0 TCY DC sTCY = 4/Fosc 3TosL, TosH External Clock in (OSC1) High or Low Time 50 — — ns XT oscillator 2.5 — — s LP oscillator 10 — — ns HS oscillator 4TosR, TosF External Clock in (OSC1) Rise or Fall Time 25 — — ns XT oscillator 50 — — ns LP oscillator 15 — — ns HS oscillator † Data in "Typ" column is at 5V, 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 con- sumption. All devices are tested to operate at "min." values with an external clock applied to the OSC1/CLKIN pin. When an external clock input is used, the "Max." cycle time limit is "DC" (no clock) for all devices. 3 3 4 4 1 2 Q4 Q1 Q2 Q3 Q4 Q1 OSC1 CLKOUT |
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