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ATMEGA88-20AU 参数 Datasheet PDF下载

ATMEGA88-20AU图片预览
型号: ATMEGA88-20AU
PDF下载: 下载PDF文件 查看货源
内容描述: [IC MCU 8BIT 8KB FLASH 32TQFP]
分类和应用: 时钟ATM异步传输模式PC微控制器外围集成电路闪存
文件页数/大小: 359 页 / 2546 K
品牌: MICROCHIP [ MICROCHIP TECHNOLOGY ]
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ATmega48/88/168
1.1
Disclaimer
Typical values contained in this datasheet are based on simulations and characterization of
other AVR microcontrollers manufactured on the same process technology. Min and Max values
will be available after the device is characterized.
2. Overview
The ATmega48/88/168 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced
RISC architecture. By executing powerful instructions in a single clock cycle, the
ATmega48/88/168 achieves throughputs approaching 1 MIPS per MHz allowing the system
designer to optimize power consumption versus processing speed.
2.1
Block Diagram
Figure 2-1.
Block Diagram
GND
VCC
Watchdog
Timer
Watchdog
Oscillator
Power
Supervision
POR / BOD &
RESET
debugWIRE
PROGRAM
LOGIC
Oscillator
Circuits /
Clock
Generation
Flash
SRAM
CPU
EEPROM
AVCC
AREF
GND
8bit T/C 0
16bit T/C 1
A/D Conv.
2
DATABUS
8bit T/C 2
Analog
Comp.
Internal
Bandgap
6
USART 0
SPI
TWI
PORT D (8)
PORT B (8)
PORT C (7)
RESET
XTAL[1..2]
PD[0..7]
PB[0..7]
PC[0..6]
ADC[6..7]
3
2545E–AVR–02/05