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参数资料
| 型号： | R5F2L3AACDFA |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP100 |
| 封装： | 14 X 20 MM, 0.65 MM PITCH, PLASTIC, QFP-100 |
| 文件页数： | 16/74页 |
| 文件大小： | 959K |
| 代理商： | R5F2L3AACDFA |
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24
2588F–AVR–06/2013
ATtiny261/461/861
6.
Clock System
Figure 6-1 presents the principal clock systems and their distribution in ATtiny261/461/861. All of
the clocks need not be active at a given time. In order to reduce power consumption, the clocks
to modules not being used can be halted by using different sleep modes, as described in “Power
Figure 6-1.
Clock Distribution
6.1
Clock Subsystems
The clock subsystems are detailed in the sections below.
6.1.1
CPU Clock – clk
CPU
The CPU clock is routed to parts of the system concerned with operation of the AVR core.
Examples of such modules are the General Purpose Register File, the Status Register and the
Data memory holding the Stack Pointer. Halting the CPU clock inhibits the core from performing
general operations and calculations.
6.1.2
I/O Clock – clk
I/O
The I/O clock is used by the majority of the I/O modules, like Timer/Counter. The I/O clock is
also used by the External Interrupt module, but note that some external interrupts are detected
by asynchronous logic, allowing such interrupts to be detected even if the I/O clock is halted.
General I/O
Modules
CPU Core
RAM
clk
I/O
AVR Clock
Control Unit
clk
CPU
Flash and
EEPROM
clk
FLASH
Source clock
Watchdog Timer
Watchdog
Oscillator
Reset Logic
Clock
Multiplexer
Watchdog clock
Calibrated RC
Oscillator
Calibrated RC
Oscillator
ADC
clk
ADC
Crystal
Oscillator
Low-Frequency
Crystal Oscillator
System Clock
Prescaler
PLL
Oscillator
clk
PCK
General I/O
Modules
External Clock
clk
PLL
相关PDF资料 |
PDF描述 |
|---|---|
| R5F2L3ACCDFA | 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP100 |
| R5F2L38CCNFA | 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP80 |
| R5F2L388CNFP | 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP80 |
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| R5F2L36CCNFP | 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP64 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| R5F2L3AACDFA#U0 | 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 96KB FLASH |
| R5F2L3AACDFP#U1 | 制造商:Renesas Electronics Corporation 功能描述: |
| R5F2L3AACDFP#V0 | 制造商:Renesas Electronics Corporation 功能描述:R8C/L3AC 96K+4K/10K 100LQFP14X14 -40-+85 - Trays |
| R5F2L3AACNFA#U0 | 制造商:Renesas Electronics Corporation 功能描述:R8CL3AC 96+4KB 1.8/5.5V -20 TO 85C 100QFP - Trays 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 96KB FLASH 100LQFP |
| R5F2L3AACNFP#30 | 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 96KB FLASH 100LQFP 制造商:Renesas Electronics Corporation 功能描述:R8C Series 16 bit 10 kB RAM 96 kB Flash Single Chip Microcontroller SMT-LQFP-100 |
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