MB90480B_10 Datasheet, PDF (93/124 Pages) Fujitsu Component Limited. – 16-bit Microcontroller

MB90480B/485B Series
(3) Reset Input Standards
Parameter
Symbol
Pin
name
Reset input time tRSTL RST
Condi-
tions
⎯
(VCC = 2.7 V to 3.6 V, VSS = 0.0 V, TA = − 40 °C to + 85 °C)
Value
Min
Unit
Max
Remarks
16 tCP*¹
⎯
ns Normal operation
Oscillator oscillation time*²
+ 4 tCP*¹
⎯
ms Stop mode
*1 : tCP is internal operating clock cycle time. Refer to “ (1) Clock Timing”.
*2 : Oscillator oscillation time is the time to 90 % of amplitude. For a crystal oscillator this is on the order of several
milliseconds to tens of milliseconds. For a ceramic oscillator, this is several hundred microseconds to
several milliseconds. For an external clock signal the value is 0 ms.
• In stop mode
RST
90 % of
amplitude
X0
tRSTL
0.2 Vcc
0.2 Vcc
Internal
operating
clock
Internal reset
Oscillator
oscillation time
4 tCP
Oscillator stabilization wait time
Instruction execution
• Condition for measurement of AC standards
CL : Load capacitance applied to pins during testing
Pin
CLK, ALE : CL = 30 pF
AD15 to AD00 (address data bus) , RD, WR,
A23 to A00/D15 to D00 : CL = 30 pF
CL
DS07-13722-11E
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