
MB90420G/425G Series
68
DS07-13711-5E
Range of warranted operation
The MB90F428GA, MB90F423GA, MB90428GA, MB90427GA, and MB90423GA
enter reset mode at supply voltage below 4 V
± 0.3 V.
Sample oscillator circuit
Oscillator element
manufacturer
Oscillator
Frequency
C1
C2
Murata Manufacturing Co., Ltd. CSTCR4M00G15 ( ) A-R0
4 MHz
39 [pF] (Typ)
16
12
8
2
5.5
3.7
3.3
3.0
Relation between internal operating clock frequency and supply voltage
MB90F428GA, MB90F423GA, MB90428GA,
MB90427GA, MB90423GA
range of warranted operation
Supply
v
oltage
V
CC
(V)
PLL range of
warranted operation
MB90F428GC, MB90F423GC, MB90428GC,
MB90427GC, MB90423GC
range of warranted operation
Internal clock frequency fCP (MHz)
4.5
MB90V420G
range of warranted
operation
Relation between oscillator clock frequency and internal operating clock frequency
Internal operating clock frequency
Main clock
PLL clock
Multiplier
× 1
Multiplier
× 2
Multiplier
× 3
Multiplier
× 4
Oscillation clock
frequency
4 MHz
2 MHz
8 MHz
12 MHz
16 MHz
X0
X1
C2
C1
CERALOCK
MB90F428A