MC9RS08KA8_08 Datasheet, PDF (21/42 Pages) Freescale Semiconductor, Inc – MCU Block Diagram

Electrical Characteristics
Table 12. Analog Comparator Electrical Specifications (continued)
Num
C
Characteristic
Symbol
Min
Typical
Max
Unit
9
P
Analog Comparator bandgap reference
voltage
V_BG
1 _{These data are characterized but not production tested.}
1.1
1.208
1.3
V
3.11 Internal Clock Source Characteristics
Table 13. Internal Clock Source Specifications
Num C
Characteristic
Symbol
Min Typical¹ Max
Unit
1 C Average internal reference frequency — untrimmed
2 P Average internal reference frequency — trimmed
3 C DCO output frequency range — untrimmed
4 P DCO output frequency range — trimmed
5 C _{Resolution of trimmed DCO output frequency}
at fixed voltage and temperature
f_{int_ut}
f_{int_t}
f_{dco_ut}
f_{dco_t}
Δf_{dco_res_t}
25
31.25
12.8
16
—
31.25
39.06
16
20
—
41.66
39.0625
21.33
20
kHz
kHz
MHz
MHz
0.2
%fdco
6 C _{Total deviation of trimmed DCO output frequency}
over voltage and temperature
Δf_{dco_t}
—
—
2
%fdco
7 C FLL acquisition time^2,3
t_acquire
—
—
1
ms
8 C _{Stop recovery time (FLL wakeup to previous acquired}
frequency)
IREFSTEN = 0
IREFSTEN = 1
t_wakeup
—
—
μs
100
86
1 _{Data in typical column was characterized at 3.0 V and 5.0 V, 25 °C or is typical recommended value.}
2 _{This parameter is characterized and not tested on each device.}
3 _{This specification applies to any time the FLL reference source or reference divider is changed, trim value changed or}
changing from FLL disabled (FBILP) to FLL enabled (FEI, FBI).
3.12 ADC Characteristics
Table 14. 5 Volt 10-bit ADC Operating Conditions
C
Characteristic
D Input voltage
C Accuracy
C Input capacitance
C Input resistance
C
Analog source resistance
external to MCU
Conditions
—
V_DD = 2 V
—
—
10 bit mode
f_ADCK > 4MHz
f_ADCK < 4MHz
8 bit mode (all valid f_ADCK)
Symb
V_ADIN
—
C_ADIN
R_ADIN
R_AS
Min. Typical Max. Unit
V_SS
—
V_DD
V
—
8 bit
—
—
—
4.5
5.5
pF
—
3
5
kΩ
—
—
5
—
—
10
kΩ
—
—
10
MC9RS08KA8 Series MCU Data Sheet, Rev. 2
Freescale Semiconductor
21