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CAT812RTBIT10 Datasheet(PDF) 7 Page - Catalyst Semiconductor |
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CAT812RTBIT10 Datasheet(HTML) 7 Page - Catalyst Semiconductor |
7 / 9 page CAT811, CAT812 7 Doc No. 3005, Rev. R © 2005 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice VALID RESET WITH VCC UNDER 1.0 V To ensure that the CAT811 RESET pin is in a known state when VCC is under 1.0 V, a 100 kΩ pull-down resistor between RESET pin and GND is recommended; the value is not critical. For the CAT812, a pull-up resistor from RESET pin to VCC is needed. Figure 3. RESET RESET RESET RESET RESET Valid with VCC Under 1.0 V Figure 4. RESET Valid with VCC Under 1.1 V Figure 5. Bi-directional Reset Pin Interfacing CAT811 GND VCC 100k Ω Power Supply RESET CAT812 GND VCC 100k Ω Power Supply RESET MR MR CAT811 GND VCC 4.7k Ω Power Supply RESET Buffered RESET BUF Bi-directional I/O Pin RESET INPUT GND µP (For example: 68HC11) MR BI-DIRECTIONAL RESET PIN INTERFACING The CAT811/812 can interface with µP/µC bi-directional reset pins by connecting a 4.7 k Ω resistor in series with the CAT811/812 reset output and the µP/µCbi-directional reset pin. |
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Descripción similar - CAT812RTBIT10 |
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