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参数资料
型号： ATTINY24A-SSN
厂商： Atmel
文件页数： 56/135页
文件大小： 0K
描述： IC MCU AVR 2KB FLASH 20MHZ 14SOI
产品培训模块： MCU Product Line Introduction
tinyAVR Introduction
标准包装： 57
系列： AVR® ATtiny
核心处理器： AVR
芯体尺寸： 8-位
速度： 20MHz
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： 12
程序存储器容量： 2KB（1K x 16）
程序存储器类型： 闪存
EEPROM 大小： 128 x 8
RAM 容量： 128 x 8
电压 - 电源 (Vcc/Vdd)： 1.8 V ~ 5.5 V
数据转换器： A/D 8x10b
振荡器型： 内部
工作温度： -40°C ~ 105°C
封装/外壳： 14-SOIC（0.154"，3.90mm 宽）
包装： 管件
26
8183F–AVR–06/12
ATtiny24A/44A/84A
6.2.1
External Clock
To drive the device from an external clock source, CLKI should be driven as shown in Figure 6-2
on page 26. To run the device on an external clock, the CKSEL Fuses must be programmed to
“0000”.
Figure 6-2.
External Clock Drive Configuration
When this clock source is selected, start-up times are determined by the SUT Fuses as shown in
Table 6-3.
When applying an external clock, it is required to avoid sudden changes in the applied clock fre-
quency to ensure stable operation of the MCU. A variation in frequency of more than 2% from
one clock cycle to the next can lead to unpredictable behavior. It is required to ensure that the
MCU is kept in Reset during such changes in the clock frequency.
Note that the System Clock Prescaler can be used to implement run-time changes of the internal
clock frequency while still ensuring stable operation. See “System Clock Prescaler” on page 30
for details.
6.2.2
Calibrated Internal 8 MHz Oscillator
By default, the Internal Oscillator provides an approximate 8 MHz clock. Though voltage and
temperature dependent, this clock can be very accurately calibrated by the user. See Table 20-2
on page 175 and “Internal Oscillator Speed” on page 236 for more details. The device is shipped
with the CKDIV8 Fuse programmed. See “System Clock Prescaler” on page 30 for more details.
This clock may be selected as the system clock by programming the CKSEL Fuses as shown in
Table 6-4. If selected, it will operate with no external components. During reset, hardware loads
the pre-programmed calibration value into the OSCCAL Register and thereby automatically cal-
ibrates the RC Oscillator. The accuracy of this calibration is shown as Factory calibration in
Table 20-2 on page 175.
Table 6-3.
Start-up Times for the External Clock Selection
SUT[1:0]
Start-up Time
from Power-down
Additional Delay
from Reset
Recommended
Usage
00
6 CK
14CK
BOD enabled
01
6 CK
14CK + 4 ms
Fast rising power
10
6 CK
14CK + 64 ms
Slowly rising power
11
Reserved
EXTERNAL
CLOCK
SIGNAL
CLKI
GND
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相关代理商/技术参数
参数描述
ATTINY24A-SSNR 功能描述:8位微控制器 -MCU AVR 2KB FL 128B EE USI ADC 20MHz 105C 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
ATTINY24A-SSU 功能描述:8位微控制器 -MCU 20MHz, Ind Temp 1.8-5.5V, Green 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
ATTINY24A-SSUR 功能描述:8位微控制器 -MCU AVR 2KB FLSH 128B EE USI ADC 20MHz 1.8V 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
ATTINY24V 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
ATTINY24V_09 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
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