參數(shù)資料
型號(hào)： MB9AF115NPF
元件分類(lèi)： 微控制器/微處理器
英文描述： RISC MICROCONTROLLER, PQFP100
封裝： 0.65 MM PITCH, PLASTIC, LQFP-100
文件頁(yè)數(shù)： 59/112頁(yè)
文件大小： 1225K
代理商： MB9AF115NPF
50
FUJITSU SEMICONDUCTOR CONFIDENTIAL
r1.0
MB9A110 Series
DS706-00011-1v0-E
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/X1 and X0A/X1A pins may cause the device to malfunction. Design the printed circuit
board so that X0/X1, X0A/X1A pins, 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/X1 and X0A/X1A 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,X0A pin only and the X1,X1A pin
should be kept open.
Handling when using Multi function serial pin as I2C pin
If it is using multi function serial pin as I2C pins, P-ch transistor of digital output is always disable.
However, I2C pins need to keep the electrical characteristic like other pins and not to connect to external I2C
bus system with power OFF.
Example of Using an External Clock
Device
X0(X0A)
X1(X1A)
Open
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