mc9s08se4 Freescale Semiconductor, Inc, mc9s08se4 Datasheet - Page 20

• Manufacturer Part Number: mc9s08se4
• Description: 8-bit Hcs08 Central Processor Unit
• Manufacturer: Freescale Semiconductor, Inc

Electrical Characteristics
3.8
20
1
2
3
Num
10
11
Data in Typical column is characterized at 3.0 V, 25 °C or is typical recommended value.
The resulting bus clock frequency should not exceed the maximum specified bus clock frequency of the device.
This specification applies to any time the FLL reference source or reference divider is changed, trim value changed or
changing from FLL disabled (FBELP, FBILP) to FLL enabled (FEI, FEE, FBE, FBI). If a crystal/resonator is being used as
the reference, this specification assumes it is already running.
1
2
3
4
5
6
7
8
9
C
C Average internal reference frequency — untrimmed
C
C
C
C
C
C FLL acquisition time
C
P Average internal reference frequency — trimmed
T Internal reference start-up time
P
P
P
P
P
Internal Clock Source (ICS) Characteristics
Table 10. ICS Frequency Specifications (Temperature Range = –40 to 85 °C Ambient)
DCO output frequency
trimmed
DCO output frequency
Reference = 32768 Hz
and DMX32 = 1
Resolution of trimmed DCO output frequency at fixed voltage
and temperature (using FTRIM)
Resolution of trimmed DCO output frequency at fixed voltage
and temperature (not using FTRIM)
Total deviation of trimmed DCO output frequency over voltage
and temperature
Total deviation of trimmed DCO output frequency over fixed
voltage and temperature range of 0
Long term jitter of DCO output clock (averaged over 2 ms
interval)
2
4
3
2
Characteristic
C
MC9S08SE8 Series MCU Data Sheet, Rev. 2
1
EXTAL
Low range (DFR = 00)
Mid range (DFR = 01)
High range (DFR = 10)
Low range (DFR = 00)
Mid range (DFR = 01)
High range (DFR = 10)
°
C to 70
Crystal or Resonator
°
C
MCU
R
F
f
Δf
Δf
dco_DMX32
Symbol
XTAL
t
Δf
Δf
dco_res_t
dco_res_t
f
Acquire
C
f
t
dco_u
int_ut
f
IRST
int_t
dco_t
dco_t
Jitter
R
S
C
2
31.25
Min
16
32
48
—
—
—
—
—
—
—
—
—
—
—
Typical
32.768
39.85
59.77
19.92
±0.1
±0.2
–1.0
±0.5
0.02
Freescale Semiconductor
0.5
60
—
—
—
—
—
1
39.06
Max
±0.2
±0.4
100
0.2
20
40
60
20
±2
±1
—
—
—
1
%f
%f
%f
%f
%f
Unit
MHz
MHz
kHz
kHz
ms
μs
dco
dco
dco
dco
dco