參數(shù)資料
型號： ATTINY28L
廠商： Atmel Corp.
英文描述： 8-bit AVR Microcontroller with 2K Bytes of Flash
中文描述： 8位AVR微控制器與2K字節(jié)的閃存
文件頁數(shù)： 5/81頁
文件大?。?/td> 663K
代理商： ATTINY28L
13
ATtiny28L/V
1062F–AVR–07/06
Constant byte address is specified by the Z-register contents. The 15 MSBs select word
address (0 - 1K), and LSB selects low byte if cleared (LSB = 0) or high byte if set (LSB =
1).
Memory Access and
Instruction Execution
Timing
This section describes the general access timing concepts for instruction execution and
internal memory access.
The AVR CPU is driven by the System Clock, directly generated from the external clock
crystal for the chip. No internal clock division is used.
Figure 14 shows the parallel instruction fetches and instruction executions enabled by
the Harvard architecture and the fast-access register file concept. This is the basic pipe-
lining concept to obtain up to 1 MIPS per MHz with the corresponding unique results for
functions per cost, functions per clocks and functions per power unit.
Figure 14. The Parallel Instruction Fetches and Instruction Executions
Figure 15 shows the internal timing concept for the register file. In a single clock cycle
an ALU operation using two register operands is executed, and the result is stored back
to the destination register.
Figure 15. Single Cycle ALU Operation
Flash Program Memory
The ATtiny28 contains 2K bytes of on-chip Flash memory for program storage. Since all
instructions are single 16-bit words, the Flash is organized as 1K x 16 words. The Flash
memory has an endurance of at least 1,000 write/erase cycles.
The ATtiny28 program counter is 10 bits wide, thus addressing the 1K word Flash pro-
gram memory. See “Programming the Flash” on page 47 for a detailed description of
Flash data downloading.
System Clock
1st Instruction Fetch
1st Instruction Execute
2nd Instruction Fetch
2nd Instruction Execute
3rd Instruction Fetch
3rd Instruction Execute
4th Instruction Fetch
T1
T2
T3
T4
System Clock
Total Execution Time
Register Operands Fetch
ALU Operation Execute
Result Write Back
T1
T2
T3
T4
相關(guān)PDF資料
PDF描述
AT17LV256 High Speed CMOS Logic 4-Bit Parallel Access Register 16-TSSOP -55 to 125
AT17LV512-10NI High Speed CMOS Logic Dual Monostable Multivibrators with Reset 16-PDIP -55 to 125
AT17LV512-10PC High Speed CMOS Logic Dual Monostable Multivibrators with Reset 16-SOIC -55 to 125
AT17LV512-10PI High Speed CMOS Logic Dual Monostable Multivibrators with Reset 16-SOIC -55 to 125
AT17LV512-10SC High Speed CMOS Logic Dual Monostable Multivibrators with Reset 16-SOIC -55 to 125
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ATTINY28L_06 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 2K Bytes of Flash
ATTINY28L-4AC 功能描述:8位微控制器 -MCU AVR 2K FLASH 28 PIN PACKAGE - 3V 4MHZ RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
ATTINY28L-4AI 功能描述:8位微控制器 -MCU AVR 2K FLASH 28 PIN PACKAGE - 3V 4MHZ RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
ATTINY28L-4AU 功能描述:8位微控制器 -MCU AVR 2K FLASH 28 PIN PACKAGE - 3V 4MHZ RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
ATTINY28L-4AUR 功能描述:8位微控制器 -MCU AVR 2K FL 4MHZ IND TEMP 3V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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