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參數(shù)資料
| 型號(hào)： | MB91F669PMC |
| 廠商： | FUJITSU LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, FLASH, 33 MHz, RISC MICROCONTROLLER, PQFP64 |
| 封裝： | 10 X 10 MM, 0.50 MM, PLASTIC, LQFP-64 |
| 文件頁(yè)數(shù)： | 23/104頁(yè) |
| 文件大小： | 3106K |
| 代理商： | MB91F669PMC |
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MB91665 Series
DS07-16916-2E
25
■ HANDLING DEVICES
Power supply pins
In products with multiple VCC and VSS pins, respective pins at the same potential are interconnected within the
device in order to prevent malfunctions such as latch-up. However, all of these pins should be connected externally
to the power supply or ground lines in order to reduce electromagnetic emission levels, to prevent abnormal
operation of strobe signals caused by the rise in the ground level, and to conform to the total output current rating.
Moreover, connect the current supply source with the VCC and VSS pins of this device at low impedance.
It is also advisable that a ceramic capacitor of approximately 0.1
F be connected as a bypass capacitor between
VCC and VSS near this device.
Crystal oscillator circuit
Noise near the X0 and X1 pins may cause the device to malfunction. Design the printed circuit board so that X0,
X1, the crystal oscillator (or ceramic oscillator), and the bypass capacitor to ground are located as close to the
device as possible.
It is strongly recommended that the PC board artwork be designed such that the X0 and X1 pins are surrounded
by ground plane as this is expected to produce stable operation.
Using an external clock
When using an external clock, the clock signal should be input to the X0 pin only and the X1 pin should be kept
open.
C Pin
As MB91660 series includes an internal regulator, always connect a bypass capacitor of approximately 4.7
F
to the C pin for use by the regulator.
Example of Using an External Clock
X0
X1
Open
MB91665
series
C
4.7 F
GND
VSS
MB91665
series
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| MB91F669PMC-G-JNE1 | 制造商:FUJITSU 功能描述: 制造商:FUJITSU 功能描述:MCU 32BIT FR80 128K FLASH 64LQFP 制造商:FUJITSU 功能描述:MCU, 32BIT, FR80, 128K FLASH, 64LQFP |
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| MB91FV310A | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:Proprietary 32-bit Microcontroller CMOS |
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