参数资料
型号: MB9AF311MPMC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 40 MHz, RISC MICROCONTROLLER, PQFP80
封装: 0.50 MM PITCH, PLASTIC, LQFP-80
文件页数: 54/114页
文件大小: 1357K
代理商: MB9AF311MPMC
ATmega48PA/88PA/168PA [DATASHEET]
9223F–AVR–04/14
44
11.6
Watchdog System Reset
When the watchdog times out, it will generate a short reset pulse of one CK cycle duration. On the falling edge of this pulse,
the delay timer starts counting the time-out period tTOUT. Refer to Section 11.8 “Watchdog Timer” on page 45 for details on
operation of the watchdog timer.
Figure 11-6. Watchdog System Reset During Operation
11.7
Internal Voltage Reference
The Atmel ATmega48PA/88PA/168PA features an internal bandgap reference. This reference is used for brown-out
detection, and it can be used as an input to the analog comparator or the ADC.
11.7.1 Voltage Reference Enable Signals and Start-up Time
The voltage reference has a start-up time that may influence the way it should be used. The start-up time is given in
Section 29.5 “System and Reset Characteristics” on page 272. To save power, the reference is not always turned on. The
reference is on during the following situations:
1.
When the BOD is enabled (by programming the BODLEVEL [2:0] fuses).
2.
When the bandgap reference is connected to the analog comparator (by setting the ACBG bit in ACSR).
3.
When the ADC is enabled.
Thus, when the BOD is not enabled, after setting the ACBG bit or enabling the ADC, the user must always allow the
reference to start up before the output from the analog comparator or ADC is used. To reduce power consumption in power-
down mode, the user can avoid the three conditions above to ensure that the reference is turned off before entering power-
down mode.
1 CK Cycle
V
CC
RESET
INTERNAL
RESET
Time-OUT
WDT
TIME-OUT
t
TOUT
相关PDF资料
PDF描述
MSP430G2152IRSA16 16-BIT, FLASH, 16 MHz, RISC MICROCONTROLLER, PQCC16
M37704E2EFP 16-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PQFP80
MSM65544-JS 8-BIT, MROM, 10 MHz, MICROCONTROLLER, PQCC68
MSM65516SS 8-BIT, MROM, 10 MHz, MICROCONTROLLER, PDIP64
MSM65P512JS 8-BIT, OTPROM, 10 MHz, MICROCONTROLLER, PQCC44
相关代理商/技术参数
参数描述
MB9AF312KPMC1-G-JNE2 功能描述:ARM? Cortex?-M3 FM3 MB9A310K Microcontroller IC 32-Bit 40MHz 160KB (160K x 8) FLASH 52-LQFP (10x10) 制造商:cypress semiconductor corp 系列:FM3 MB9A310K 包装:托盘 零件状态:有效 核心处理器:ARM? Cortex?-M3 核心尺寸:32-位 速度:40MHz 连接性:CSIO,I2C,LIN,UART/USART,USB 外设:DMA,LVD,POR,PWM,WDT I/O 数:36 程序存储容量:160KB(160K x 8) 程序存储器类型:闪存 EEPROM 容量:- RAM 容量:16K x 8 电压 - 电源(Vcc/Vdd):2.7 V ~ 5.5 V 数据转换器:A/D 8x12b 振荡器类型:内部 工作温度:-40°C ~ 105°C(TA) 封装/外壳:52-LQFP 供应商器件封装:52-LQFP(10x10) 标准包装:160
MB9AF312KPMC-ES-E1 制造商:FUJITSU 功能描述:
MB9AF312KPMC-G-JNE1 制造商:FUJITSU 功能描述:
MB9AF312KPMC-G-JNE2 功能描述:ARM? Cortex?-M3 FM3 MB9A310K Microcontroller IC 32-Bit 40MHz 160KB (160K x 8) FLASH 48-LQFP (7x7) 制造商:cypress semiconductor corp 系列:FM3 MB9A310K 包装:托盘 零件状态:有效 核心处理器:ARM? Cortex?-M3 核心尺寸:32-位 速度:40MHz 连接性:CSIO,I2C,LIN,UART/USART,USB 外设:DMA,LVD,POR,PWM,WDT I/O 数:36 程序存储容量:160KB(160K x 8) 程序存储器类型:闪存 EEPROM 容量:- RAM 容量:16K x 8 电压 - 电源(Vcc/Vdd):2.7 V ~ 5.5 V 数据转换器:A/D 8x12b 振荡器类型:内部 工作温度:-40°C ~ 105°C(TA) 封装/外壳:48-LQFP 供应商器件封装:48-LQFP(7x7) 标准包装:250
MB9AF312KQN-ES-AWE2 制造商:FUJITSU 功能描述: