参数资料
型号: T89C51CC01UA-SLSIM
厂商: Atmel
文件页数: 59/123页
文件大小: 0K
描述: IC 8051 MCU FLASH 32K 44PLCC
标准包装: 27
系列: AT89C CAN
核心处理器: 8051
芯体尺寸: 8-位
速度: 40MHz
连通性: CAN,UART/USART
外围设备: POR,PWM,WDT
输入/输出数: 32
程序存储器容量: 32KB(32K x 8)
程序存储器类型: 闪存
EEPROM 大小: 2K x 8
RAM 容量: 1.25K x 8
电压 - 电源 (Vcc/Vdd): 3 V ~ 5.5 V
数据转换器: A/D 8x10b
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 44-LCC(J 形引线)
包装: 管件
配用: AT89STK-06-ND - KIT DEMOBOARD 8051 MCU W/CAN
其它名称: T89C51CC01UASLSIM
2007 Microchip Technology Inc.
Preliminary
DS70165E-page 149
dsPIC33F
8.0
OSCILLATOR
CONFIGURATION
The dsPIC33F oscillator system provides:
Various external and internal oscillator options as
clock sources
An on-chip PLL to scale the internal operating
frequency to the required system clock frequency
The internal FRC oscillator can also be used with
the PLL, thereby allowing full-speed operation
without any external clock generation hardware
Clock switching between various clock sources
Programmable clock postscaler for system power
savings
A Fail-Safe Clock Monitor (FSCM) that detects
clock failure and takes fail-safe measures
A Clock Control register (OSCCON)
Nonvolatile Configuration bits for main oscillator
selection.
A simplified diagram of the oscillator system is shown
FIGURE 8-1:
dsPIC33F OSCILLATOR SYSTEM DIAGRAM
Note:
This data sheet summarizes the features
of this group of dsPIC33F devices. It is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to the “dsPIC30F
Family Reference Manual” (DS70046).
dsPIC33F
PLL
Secondary Oscillator
SOSCEN
Enable
Oscillator
SOSCO
SOSCI
Clock Source Option
for other Modules
OSC1
OSC2
Primary Oscillator
XTPLL, HSPLL,
XT, HS, EC
CPU
Peripherals
/F
R
CDIIV
FRCDIV<2:0>
WDT, PWRT
FRC, FRCDIVN
FRC
Oscillator
LPRC
Oscillator
SOSC
LPRC
/DO
Z
E
Clock Control Logic
Fail-Safe
Clock
Monitor
DOZE<2:0>
ECPLL, FRCPLL
Divide
By 16
FRCDIV16
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