參數(shù)資料
型號: MB91V301CR-ESE1
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 68 MHz, RISC MICROCONTROLLER, CPGA179
封裝: CERAMIC, PGA-179
文件頁數(shù): 59/139頁
文件大小: 1482K
代理商: MB91V301CR-ESE1
MB91301 Series
26
s
s HANDLING DEVICES
rMB91301 series
Operation at start-up
Always apply a settings initialization (INIT) to the INIT pin immediately after turning on the power.
Also, in order to provide a delay while the oscillator circuits stabilize immediately after start-up, maintain the “L”
level input to the INIT pin for the required stabilization delay time. (The initialization processing (INIT) triggered
by the INIT pin initializes the oscillation stabilization delay time to the minimum setting.)
External clock input at start-up
At power-on start-up, always input a clock signal until the oscillation stabilization delay time is ended.
Output indeterminate at power-on time
When the power is turned on, the output pin may remain indeterminate until the internal power supply becomes
stable.
Built-in DC/DC regulator
This device has a built-in regulator, requiring 3.3 V input to the Vcc pin and a bypass capacitor of approximately
4.7
F connected to the C pin for the regulator.
Note on use of the A/D converter
As the MB91301 series contains an A/D converter, be sure to supply power to AVcc at 3.3 V and insert a capacitor
of at least 0.05
F between the AVR pin and the AVss/AVRL pin.
3.3 V
VCC
C
VSS
AVCC
AVR
AVRH
AVSS/AVRL
VSS
GND
0.05
F
4.7
F
MB91301 series
Note of built-in DC/DC regulator
3.3 V
AVCC
AVR
AVRH
AVSS/AVRL
0.05
F
MB91301 series
Note on Use of A/D Converter
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