参数资料
型号: SAB-C515-L24N
厂商: INFINEON TECHNOLOGIES AG
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 24 MHz, MICROCONTROLLER, PQCC68
封装: PLASTIC, LCC-68
文件页数: 98/162页
文件大小: 771K
代理商: SAB-C515-L24N
Semiconductor Group
5-4
Reset / System Clock
C515
5.3
Oscillator and Clock Circuit
XTAL1 and XTAL2 are the output and input of a single-stage on-chip inverter which can be
configured with off-chip components as a Pierce oscillator. The oscillator, in any case, drives the
internal clock generator. The clock generator provides the internal clock signals to the chip. These
signals define the internal phases, states and machine cycles.
Figure 5-3 shows the recommended oscillator circuit.
Figure 5-3
Recommended Oscillator Circuitry
In this application the on-chip oscillator is used as a crystal-controlled, positive-reactance oscillator
(a more detailed schematic is given in figure 5-4). lt is operated in its fundamental response mode
as an inductive reactor in parallel resonance with a capacitor external to the chip. The crystal
specifications and capacitances are non-critical. In this circuit 20 pF can be used as single
capacitance at any frequency together with a good quality crystal. A ceramic resonator can be used
in place of the crystal in cost-critical applications. If a ceramic resonator is used, the two capacitors
normally have different values depending on the oscillator frequency. We recommend consulting
the manufacturer of the ceramic resonator for value specifications of these capacitors.
MCS03225
C
C = 20 pF ± 10 pF for Crystal Operation
XTAL2
XTAL1
C515
- 24 MHz
1
相关PDF资料
PDF描述
SAF-C515-RM 8-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PQFP80
SAF-C515-LN 8-BIT, 16 MHz, MICROCONTROLLER, PQCC68
SAH-C515-LN 8-BIT, 16 MHz, MICROCONTROLLER, PQCC68
SAB-C515-LM 8-BIT, 16 MHz, MICROCONTROLLER, PQFP80
SAB-C515C-LM 8-BIT, 10 MHz, MICROCONTROLLER, PQFP80
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