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| 型號(hào)： | ATTINY28L |
| 廠(chǎng)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(yè)數(shù)： | 34/81頁(yè) |
| 文件大?。?/td> | 663K |
| 代理商： | ATTINY28L |
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4
ATtiny28L/V
1062F–AVR–07/06
Architectural
Overview
The fast-access register file concept contains 32 x 8-bit general-purpose working regis-
ters with a single clock cycle access time. This means that during one single clock cycle,
one ALU (Arithmetic Logic Unit) operation is executed. Two operands are output from
the register file, the operation is executed, and the result is stored back in the register
file – in one clock cycle.
Two of the 32 registers can be used as a 16-bit pointer for indirect memory access. This
pointer is called the Z-pointer and can address the register file and the Flash program
memory.
Figure 3. The ATtiny28 AVR RISC Architecture
The ALU supports arithmetic and logic functions between registers or between a con-
stant and a register. Single register operations are also executed in the ALU. Figure 3
shows the ATtiny28 AVR RISC microcontroller architecture. The AVR uses a Harvard
architecture concept – with separate memories and buses for program and data memo-
ries. The program memory is accessed with a two-stage pipeline. While one instruction
is being executed, the next instruction is pre-fetched from the program memory. This
concept enables instructions to be executed every clock cycle. The program memory is
reprogrammable Flash memory.
With the relative jump and relative call instructions, the whole 1K address space is
directly accessed. All AVR instructions have a single 16-bit word format, meaning that
every program memory address contains a single 16-bit instruction.
During interrupts and subroutine calls, the return address program counter (PC) is
stored on the stack. The stack is a 3-level-deep hardware stack dedicated for subrou-
tines and interrupts.
The I/O memory space contains 64 addresses for CPU peripheral functions such as
Control Registers, Timer/Counters and other I/O functions. The memory spaces in the
AVR architecture are all linear and regular memory maps.
A flexible interrupt module has its control registers in the I/O space with an additional
global interrupt enable bit in the status register. All the different interrupts have a sepa-
Control Lines
ALU
Data Bus 8-bit
1K x 16
Program
Flash
Instruction
Register
Instruction
Decoder
Program
Counter
Status
and Test
32 x 8
General
Purpose
Registrers
Z
Control
Registrers
Interrupts
Unit
8-bit
Timer/Counter
Watchdog
Timer
Analog
Comparator
20
I/O Lines
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(chēng):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(xiàn)寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(xiàn)寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(xiàn)寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(xiàn)寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)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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