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參數資料
型號: MC68HCP11A1CP3
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: HCMOS Single-Chip Microcontroller
中文描述: 8-BIT, EEPROM, 3 MHz, MICROCONTROLLER, PDIP48
封裝: DIP-48
文件頁數: 82/158頁
文件大小: 776K
代理商: MC68HCP11A1CP3
MOTOROLA
9-2
RESETS, INTERRUPTS, AND LOW POWER MODES
MC68HC11A8
TECHNICAL DATA
9
Figure 9-1 Reset Timing
supply voltage. The power-on circuitry provides a 4064 cycle time delay from the time
of the first oscillator operation. In a system where E = 2 MHz, power on reset lasts
about 2 milliseconds. If the external RESET pin is low at the end of the power-on delay
time, the MCU remains in the reset condition until the RESET pin goes high.
9.1.2.1 CPU
After reset the CPU fetches the restart vector from locations $FFFE and $FFFF
($BFFE and $BFFF if in special bootstrap or special test operating mode) during the
first three cycles, and begins executing instructions. The stack pointer and other CPU
registers are indeterminate immediately after reset; however, the X and I interrupt
mask bits in the condition code register are set to mask any interrupt requests. Also,
the S bit in the condition code register is set to disable the STOP mode.
FFFE
FFFE
FFFE
FFFE
FFFE
FFFE
FFFE
FFFE
FFFE
FFFE
FFFF
VECTOR
FETCH
1
E
RPIN
ENABLE RESET PIN
PULL-DOWN
(INTERNAL SIGNAL)
EXTERNAL RESET CASE
FFFE
FFFE
FFFE
FFFE
FFFE
FFFE
FFFE
FFFA
FFFB
VECTOR
FETCH
1
E
RPIN
COP WATCHDOG RESET CASE
FFFE
FFFE
FFFE
FFFE
FFFE
FFFE
FFFE
FFFE
FFFC
FFFD
VECTOR
FETCH
1
E
RPIN
CLOCK MONITOR RESET CASE
FFFE
RESET PIN SAMPLED AT THIS TIME. LOW LEVEL INDICATES EXTERNAL RESET. HIGH LEVEL INDICATES CLOCK MONITOR OR COP SYSTEM RESET.
1
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相關代理商/技術參數
參數描述
MC68HCP11A1FN 制造商:MOTORALA 功能描述:
MC68HCP11E0CP2 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC68HCP11E0FN 功能描述:MICROCONTROLLER MCU 8ADC 3MHC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:HC11 標準包裝:250 系列:56F8xxx 核心處理器:56800E 芯體尺寸:16-位 速度:60MHz 連通性:CAN,SCI,SPI 外圍設備:POR,PWM,溫度傳感器,WDT 輸入/輸出數:21 程序存儲器容量:40KB(20K x 16) 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:6K x 16 電壓 - 電源 (Vcc/Vdd):2.25 V ~ 3.6 V 數據轉換器:A/D 6x12b 振蕩器型:內部 工作溫度:-40°C ~ 125°C 封裝/外殼:48-LQFP 包裝:托盤 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323
MC68HCP11E0FNE 功能描述:8位微控制器 -MCU 8B MCU 512RAM COP A/D RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 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 安裝風格:SMD/SMT
MC68HCP11E1CFNE2 功能描述:8位微控制器 -MCU 8B MCU 512 BYTES RAM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 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 安裝風格:SMD/SMT
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