MB90540/540G/545/545G Series
(2) Clock Output Timing
(MB90F543/F549 : VCC = 5.0 V ± 10%, VSS = AVSS = 0.0 V, TA = −40 °C to +85 °C)
(MB90543G(S)/547G(S)/548G(S)/F548GL(S): VCC = 3.5 V to 5.5 V, VSS = AVSS = 0.0 V, TA = −40 °C to +105 °C)
(Other than MB90F543/F549/543G(S)/547G(S)/548G(S)/F548GL(S):
VCC = 5.0 V ± 10%, VSS = AVSS = 0.0 V, TA = −40 °C to +105 °C)
Value
Parameter
Symbol Pin name
Condition
Units
Remarks
Min
62.5
20
Max
Cycle time
CLK↑ →CLK↓
tCYC
CLK
tCHCL
ns
ns
VCC = 5 V ± 10%
tCYC
tCHCL
2.4 V
2.4 V
CLK
0.8 V
(3) Reset and Hardware Standby Input Timing
(MB90F543/F549 : VCC = 5.0 V ± 10%, VSS = AVSS = 0.0 V, TA = −40 °C to +85 °C)
(MB90543G(S)/547G(S)/548G(S)/F548GL(S): VCC = 3.5 V to 5.5 V, VSS = AVSS = 0.0 V, TA = −40 °C to +105 °C)
(Other than MB90F543/F549/543G(S)/547G(S)/548G(S)/F548GL(S):
VCC = 5.0 V ± 10%, VSS = AVSS = 0.0 V, TA = −40 °C to +105 °C)
Value
Min
Pin
name
Parameter
Symbol
Units
Remarks
Max
4 tCP
ns
Under normal operation
Oscillation time of
oscillator + 4 tCP
ms In stop mode
In pseudo timer mode
100
µs
(MB90543G (S) /547G (S) /
548G (S) )
Reset input time
tRSTL
RST
HST
In pseudo timer mode
(Other than MB90543G (S) /
547G (S) /548G (S) )
4 tCP
ns
In sub-clock mode,
sub-sleep mode,
timer mode
2 tCP
µs
Hardware standby input time
tHSTL
4 tCP
ns
Under normal operation
Note : “tcp” represents one cycle time of the machine clock.
Oscillation time of oscillator is time that amplitude reached the 90%. In the crystal oscillator, the oscillation
time is between several ms to tens of ms. In FAR/ceramic oscillator, the oscillation time is between handreds
of µs to several ms. In the external clock, the oscillation time is 0 ns.
Any reset can not fully initialize the Flash Memory if it is performing the automatic algorithm.
45
FUJITSU [ FUJITSU ]
