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MC68HLC908LJ12 Datasheet(PDF) 5 Page - Motorola, Inc |
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MC68HLC908LJ12 Datasheet(HTML) 5 Page - Motorola, Inc |
5 / 16 page HC908LJ12AD/D MC68HLC908LJ12 MOTOROLA Addendum to MC68HC908LJ12 Technical Data 5 Oscillator Characteristics Table 4. Oscillator Specifications (2.4 to 2.7V) Characteristic Symbol Min Typ Max Unit Internal oscillator clock frequency fICLK —See Figure 1.— Hz External reference clock to OSC1(1) fOSC dc — 8M Hz Crystal reference frequency(2) fXCLK 32.768k 4.9152M Hz Crystal load capacitance(3) CL ——— Crystal fixed capacitance C1 — 2 × C L (25p) —F Crystal tuning capacitance C2 — 2 × C L (25p) —F Feedback bias resistor RB —10M — Ω Series resistor(4) RS —100k — Ω 1. No more than 10% duty cycle deviation from 50%. 2. Fundamental mode crystals only. 3. Consult crystal manufacturer’s data. 4. Not Required for high frequency crystals. Table 5. Oscillator Specifications (2.7 to 3.3V) Characteristic Symbol Min Typ Max Unit Internal oscillator clock frequency fICLK —See Figure 1.— Hz External reference clock to OSC1(1) fOSC dc — 16M Hz Crystal reference frequency(2) fXCLK 32.768k 4.9152M Hz Crystal load capacitance(3) CL ——— Crystal fixed capacitance C1 — 2 × C L (25p) —F Crystal tuning capacitance C2 — 2 × C L (25p) —F Feedback bias resistor RB —10M — Ω Series resistor(4) RS —100k — Ω 1. No more than 10% duty cycle deviation from 50%. 2. Fundamental mode crystals only. 3. Consult crystal manufacturer’s data. 4. Not Required for high frequency crystals. Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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