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參數(shù)資料
| 型號： | MB91F155APFV-G |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, FLASH, 33 MHz, RISC MICROCONTROLLER, PQFP144 |
| 封裝： | PLASTIC, LQFP-144 |
| 文件頁數(shù)： | 16/108頁 |
| 文件大?。?/td> | 2523K |
| 代理商： | MB91F155APFV-G |
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MB91150 Series
DS07-16306-5E
15
■ HANDLING DEVICES
1.
Preventing Latchup
In CMOS ICs, applying voltage higher than VCC or lower than VSS to input/output pin or applying voltage over
rating across VCC and VSS may cause latchup.
This phenomenon rapidly increases the power supply current, which may result in thermal breakdown of the
device. Make sure to prevent the voltage from exceeding the maximum rating.
2.
Treatment of Pins
Treatment of unused pins
Unused pins left open may cause malfunctions. Make sure to connect them to pull-up or pull-down resistors.
Treatment of open pins
Be sure to use open pins in open state.
Treatment of output pins
Shortcircuiting an output pin with the power supply or with another output pin or connecting a large-capacity
load may causes a flow of large current. If this conditions continues for a lengthy period of time, the device
deteriorates. Take great care not to exceed the absolute maximum ratings.
Mode pins (MD0-MD2)
These pins should be used directly connected to either VCC or VSS. In order to prevent noise from causing
accidental entry into test mode, keep the pattern length as short as possible between each mode pin and VCC
or VSS on the board and connect them with low impedance.
Power supply pins
When there are several VCC and VSS pins, each of them is equipotentially connected to its counterpart inside
of the device, minimizing the risk of malfunctions such as latch up. To further reduce the risk of malfunctions,
to prevent EMI radiation, to prevent strobe signal malfunction resulting from creeping-up of ground level and
to observe the total output current standard, connect all VCC and VSS pins to the power supply or GND.
It is preferred to connect VCC and VSS of MB91F155A/MB91154 to power supply with minimal impedance possible.
It is also recommended to connect a ceramic capacitor as a bypass capacitor of about 0.1
F between VCC and
VSS at a position as close as possible to MB91F155AMB91154.
Crystal oscillator circuit
Noises around X0, X1, X0A, and X1A pins may cause malfunctions of MB91F155A/MB91154. In designing
the PC board, layout X0, X1 (X0A, X1A) and crystal oscillator (or ceramic oscillator) and bypass capacitor for
grounding as close as possible.
It is strongly recommended to design PC board so that X0, X1, X0A, and X1A pins are surrounded by grounding
area for stable operation.
The MB91150 series devices do not contain a feedback resistor. To use the clock function, you need to connect
an external resistor.
3.
Precautions
External Reset Input
It takes at least 5 machine cycle to input “L” level to the RST pin and to ensure inner reset operation properly.
External Clocks
When using an external clock, normally, a clock of which the phase is opposite to that of X0 must be supplied
to the X0 and X1 pins simultaneously. However, when using the clock along with STOP (oscillation stopped)
X0A
X1A
MB91150 series
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| MB91233LLGA-G-xxx-BNDE1 | 32-BIT, FLASH, 33.6 MHz, RISC MICROCONTROLLER, PQFP120 |
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| MB91F233APMC1-GE1 | 32-BIT, FLASH, 33.6 MHz, RISC MICROCONTROLLER, PQFP120 |
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| MB91264BPF-G-XXXE1 | 32-BIT, MROM, 33 MHz, RISC MICROCONTROLLER, PQFP100 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MB91F155PFV-G | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit Proprietary Microcontrollers |
| MB91F158 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit Proprietary Microcontrollers |
| MB91F158PFF-G | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit Proprietary Microcontrollers |
| MB91F191A | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit Proprietary Microcontroller |
| MB91F191APFF | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit Proprietary Microcontroller |
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