Datasheet AT90S8515 (Atmel) - 6
| Fabricante | Atmel |
| Descripción | 8-bit AVR Microcontroller with 8K Bytes In-System Programmable Flash |
| Páginas / Página | 112 / 6 — Crystal Oscillator XTAL1 and XTAL2 are input and output, respectively, of … |
| Formato / tamaño de archivo | PDF / 2.7 Mb |
| Idioma del documento | Inglés |
Crystal Oscillator XTAL1 and XTAL2 are input and output, respectively, of an inverting amplifier that can
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Versión de texto del documento
Crystal Oscillator XTAL1 and XTAL2 are input and output, respectively, of an inverting amplifier that can
be configured for use as an on-chip oscillator, as shown in Figure 2. Either a quartz
crystal or a ceramic resonator may be used. To drive the device from an external clock
source, XTAL2 should be left unconnected while XTAL1 is driven as shown in Figure 3.
Figure 2. Oscillator Connections
MAX 1 HC BUFFER
HC C2
C1 XTAL2
XTAL1
GND Note: When using the MCU oscillator as a clock for an external device, an HC buffer should be
connected as indicated in the figure. Figure 3. External Clock Drive Configuration 6 AT90S8515
0841G–09/01
be configured for use as an on-chip oscillator, as shown in Figure 2. Either a quartz
crystal or a ceramic resonator may be used. To drive the device from an external clock
source, XTAL2 should be left unconnected while XTAL1 is driven as shown in Figure 3.
Figure 2. Oscillator Connections
MAX 1 HC BUFFER
HC C2
C1 XTAL2
XTAL1
GND Note: When using the MCU oscillator as a clock for an external device, an HC buffer should be
connected as indicated in the figure. Figure 3. External Clock Drive Configuration 6 AT90S8515
0841G–09/01