参数资料
型号: ATTINY43U-SUR
厂商: Atmel
文件页数: 24/158页
文件大小: 0K
描述: MCU AVR 4KB FLASH 8MHZ 20SOIC
产品培训模块: tinyAVR Introduction
标准包装: 1,000
系列: AVR® ATtiny
核心处理器: AVR
芯体尺寸: 8-位
速度: 8MHz
连通性: USI
外围设备: 欠压检测/复位,POR,PWM,温度传感器,WDT
输入/输出数: 16
程序存储器容量: 4KB(2K x 16)
程序存储器类型: 闪存
EEPROM 大小: 64 x 8
RAM 容量: 256 x 8
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 5.5 V
数据转换器: A/D 4x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 20-SOIC(0.295",7.50mm 宽)
包装: 带卷 (TR)
其它名称: ATTINY43U-SUR-ND
12
8048C–AVR–02/12
ATtiny43U
4.6.1
SPH and SPL — Stack Pointer Register
4.7
Instruction Execution Timing
This section describes the general access timing concepts for instruction execution. The AVR
CPU is driven by the CPU clock clk
CPU, directly generated from the selected clock source for the
chip. No internal clock division is used.
Figure 4-4 on page 12 shows the parallel instruction fetches and instruction executions enabled
by the Harvard architecture and the fast access Register File concept. This is the basic pipelin-
ing 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 4-4.
The Parallel Instruction Fetches and Instruction Executions
Figure 4-5 on page 12 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 4-5.
Single Cycle ALU Operation
Bit
151413121110
9
8
SP15
SP14
SP13
SP12
SP11
SP10
SP9
SP8
SPH
SP7
SP6
SP5
SP4
SP3
SP2
SP1
SP0
SPL
765
43210
Read/Write
R/W
Read/Write
R/W
Initial Value
RAMEND
Initial Value
RAMEND
clk
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
CPU
Total Execution Time
Register Operands Fetch
ALU Operation Execute
Result Write Back
T1
T2
T3
T4
clk
CPU
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ATTINY44-15SSZ 功能描述:8位微控制器 -MCU 4KB Flash 15MHz Auto 125-degrees C RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
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