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MB91245 Datasheet(PDF) 55 Page - Fujitsu Component Limited. |
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MB91245 Datasheet(HTML) 55 Page - Fujitsu Component Limited. |
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55 / 84 page  MB91245/S Series 55 2. Recommended Operating Conditions (VSS = DVSS = AVSS = 0.0 V) *1 : Exclusive of A/D operation *2 : Internal voltage held in RAM : 1.8 V (Min) /3.6 V (Max) *3 : For how to connect the smoothing capacitor CS, refer to the figure below. < + B input (12 V to 16 V) conditions> • Do not connect +B potential directly to a microcontroller pin. • Always connect a resistor between the microcontroller pin and +B signal to limit the current. lIHH = 2 mA per pin (Max.) [In the steady state and transient state between power-on and power-off, etc.] It can be connected to any general-purpose input port except the output pin for LCDC. • The protection diode in the microcontroller turns the potential upon +B input between the limiting resistor and microcontroller pin into “VCC + protection diode ON voltage”. Configure the circuit so that these are not interfered and the potential is not exceeded. Parameter Symbol Rating Unit Remarks Min Max Power supply voltage VCC, AVCC, DVCC 4.5 5.5 V Recommended guaranteed operating range (MB91248, MB91F248, MB91F249, MB91F249S) 3.5 5.5 V Guaranteed operating range*1 (MB91248, MB91F248, MB91F249, MB91F249S) 2.0 5.5 V Guaranteed operating range for holding stop operation status*2 (MB91248, MB91F248, MB91F249, MB91F249S) Smoothing capacitor*3 CS 1 μF Use a ceramic capacitor or a capacitor with similar frequency characteristics. Operating temperature TA −40 +105 °C MASK ROM product (in single chip operation) −40 +105 °C Flash memory product (in single chip operation) −40 +85 °C MASK ROM/Flash memory product (in external bus operation) VSS CS DVSS AVSS VCC3C • C Pin Connection Diagram |
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Similar Description - MB91245 |
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