mb95r203a Fujitsu Microelectronics, Inc., mb95r203a Datasheet - Page 28

• Manufacturer Part Number: mb95r203a
• Description: 8-bit Proprietary Microcontrollers
• Manufacturer: Fujitsu Microelectronics, Inc.

MB95R203A
28
*1 : Clock before setting division due to machine clock division ratio selection bit (SYCC : DIV1 and DIV0) .
*2 : Operation clock of the microcontroller. Machine clock can be selected as follows.
(2) Source Clock/Machine Clock
execution time)
Machine clock
Machine clock
Source clock
(Clock before
Source clock
cycle time
cycle time
Parameter
instruction
frequency
frequency
(Minimum
division)
This source clock is divided by the machine clock division ratio selection bit (SYCC : DIV1 and DIV0) ,
and it becomes the machine clock. Further, the source clock can be selected as follows.
• Main clock divided by 2
• Main CR clock
• Sub clock divided by 2
• Sub CR clock divided by 2
• Source clock (no division)
• Source clock divided by 4
• Source clock divided by 8
• Source clock divided by 16
*1
*2
Symbol
t
t
F
F
F
F
MCLK
SCLK
MPL
MP
SP
SPL
name
Pin
⎯
⎯
⎯
⎯
0.0625
0.031
1.024
3.125
Min
100
125
100
100
0.5
61
20
⎯
⎯
⎯
⎯
1
16.384
Value
Typ
61
20
50
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
16.384
32000
16000
976.5
2000
1000
Max
320
10
10
50
⎯
⎯
⎯
⎯
8
8
(Vcc = 3.3 V, Vss = 0.0 V, T
MHz When using main oscillation clock
MHz When using main CR oscillation clock
MHz When using main oscillation clock
MHz When using main CR clock
Unit
kHz When using sub oscillation clock
kHz When using sub CR clock
kHz When using sub oscillation clock
kHz When using sub CR clock
ns
ns
μs
μs
ns
ns
μs
μs
When using main external clock
Min : F
Max : F
When using main CR oscillation clock
Min : F
Max : F
When using sub oscillation clock
F
When using sub oscillation clock
F
When using main oscillation clock
Min : F
Max : F
When using main CR clock
Min : F
Max : F
When using sub oscillation clock
Min : F
Max : F
When using sub CR clock
Min : F
Max : F
CL
CRL
= 32.768 kHz, divided by 2
= 100 kHz, divided by 2
CH
CRH
SP
SP
SPL
SPL
CH
CRH
SP
SP
SPL
SPL
= 10 MHz, no division
= 10 MHz, no division
= 20 MHz, divided by 2
= 0.5 MHz, divided by 16
= 1 MHz, divided by 16
= 1 MHz, divided by 2
= 16.384 kHz, no division
= 50 kHz, no division
= 8 MHz
= 16.384 kHz, divided by 16
= 50 kHz, divided by 16
= 1 MHz
Remarks
A
= −40 °C to +85 °C)
DS07-12630-1E