MB90480/485 Series
(Continued)
Part number
MB90487B MB90488B MB90F488B MB90V485B MB90F489B MB90483C
Item
Reset generation interval: 3.58 ms, 14.33 ms, 57.23 ms, 458.75 ms
(minimum value, at 4 MHz base oscillator)
Watchdog timer
Low-power
consumption (standby)
modes
Stop mode, sleep mode, CPU intermittent operation mode, watch timer mode, timebase
timer mode
Process
Type
CMOS
3V/5Vpower
supply*1
3V/5Vpower
supply*1
3 V/5 V
power
3 V/5 V
power
3 V/5 V
power
3 V/5 V
power
Included
security
Included
security
supply*1
supply*1
supply*1
supply*1
function
function
Emulator power
supply*3
⎯
⎯
⎯
Included
⎯
⎯
*1 : 3 V/5 V I/F pin : All pins should be for 3 V power supply without P20 to P27, P30 to P37, P40 to P47, and
P70 to P77.
*2 : P76/P77 pins are N-ch open drain pins (without P-ch) at built-in I2C. However, MB90V485B uses the N-ch open
drain pin (with P-ch) .
*3 : It is setting of Jumper switch (TOOL VCC) when emulator (MB2147-01) is used.
Please refer to the MB2147-01 or MB2147-20 hardware manual (3.3 Emulator-dedicated Power Supply
Switching) about details.
Notes : • As for MB90V485B, input pins (PWC0, PWC1, PWC2/EXTC/SCL and SDA pins) for PWC/µPG/I2C
become CMOS input.
• Ensure that you must write to Flash at VCC = 3.13 V to 3.60 V (3.3 V + 10%, − 5%) .
5
FUJITSU [ FUJITSU ]
