MB90540/540G/545/545G Series
■ ELECTRICAL CHARACTERISTICS
1. Absolute Maximum Ratings
(VSS = AVSS = 0.0 V)
Value
Parameter
Symbol
Units
Remarks
Min
Max
VCC
VSS − 0.3 VSS + 6.0
VSS − 0.3 VSS + 6.0
V
V
AVCC
VCC = AVCC
*1
Power supply voltage
AVRH,
AVRL
AVCC ≥ AVRH/AVRL,
AVRH ≥ AVRL
VSS − 0.3 VSS + 6.0
V
*1
*2
*2
*6
*6
*3
*4
Input voltage
VI
VO
VSS − 0.3 VSS + 6.0
VSS − 0.3 VSS + 6.0
V
Output voltage
V
Maximum clamp current
ICLAMP
∑| ICLAMP |
IOL
− 2.0
+ 2.0
20
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
Total maximum clamp current
“L” level max output current
“L” level avg. output current
“L” level max overall output current
“L” level avg. overall output current
“H” level max output current
“H” level avg. output current
“H” level max overall output current
“H” level avg. overall output current
15
IOLAV
4
∑IOL
100
50
∑IOLAV
IOH
*5
*3
*4
−15
−4
IOHAV
∑IOH
−100
−50
500
400
+85
+105
+150
∑IOHAV
*5
mW Flash device
mW Mask ROM
Power consumption
PD
−40
−40
−55
°C MB90F543/F549
Operating temperature
Storage temperature
TA
°C Other than MB90F543/F549
°C
TSTG
*1 : AVCC, AVRH, AVRL should not exceed VCC. Also, AVRH, AVRL should not exceed AVCC, and AVRL does not
exceed AVRH.
*2 : VI and VO should not exceed VCC + 0.3 V. VI should not exceed the specified ratings. However if the maximum
current to/from an input is limited by some means with external components, the ICLAMP rating supercedes the
VI rating.
*3 : The maximum output current is a peak value for a corresponding pin.
*4 : Average output current is an average current value observed for a 100 ms period for a corresponding pin.
*5 : Total average current is an average current value observed for a 100 ms period for all corresponding pins.
*6: • Applicabletopins:P00toP07,P10toP17,P20toP27,P30toP37,P40toP47,P50toP57,P60toP67,P70toP77,
P80 to P87, P90 to P97, PA0
• Use within recommended operating conditions.
• Use at DC voltage (current) .
• The +B signal should always be applied with a limiting resistance placed between the +B signal and the
microcontroller.
• The value of the limiting resistance should be set so that when the +B signal is applied the input current to
the microcontroller pin does not exceed rated values, either instantaneously or for prolonged periods.
• Note that when the microcontroller drive current is low, such as in the power saving modes, the +B input
potential may pass through the protective diode and increase the potential at the VCC pin, and this may affect
other devices.
• Note that if a +B signal is input when the microcontroller current is off (not fixed at 0 V) , the power supply is
provided from the pins, so that incomplete operation may result.
• Note that if the +B input is applied during power-on, the power supply is provided from the pins and the
resulting supply voltage may not be sufficient to operate the power-on result.
(Continued)
37
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