Datasheet

Chapter 3 Electrical Characteristics and Timing Specifications
MC9S08AC128 Series Data Sheet, Rev. 4
24 Freescale Semiconductor
3.9 Internal Clock Generation Module Characteristics
Input leakage error
Pad leakage
3
* R
AS
10-bit mode D E
IL
— 0.2 2.5 LSB
2
8-bit mode — 0.1 1
1
Typical values assume V
DDAD
= 5.0V, Temp = 25C, f
ADCK
=1.0 MHz unless otherwise stated. Typical values are for reference
only and are not tested in production.
2
1 LSB = (V
REFH
– V
REFL
)/2
N
3
Based on input pad leakage current. Refer to pad electricals.
Table 3-10. ICG DC Electrical Specifications (Temperature Range = –40 to 125C Ambient)
Characteristic Symbol Min Typ
1
1
Typical values are based on characterization data at V
DD
= 5.0V, 25C or is typical recommended value.
Max Unit
Load capacitors
C
1
C
2
See Note
2
2
See crystal or resonator manufacturer’s recommendation.
Feedback resistor
Low range (32k to 100 kHz)
High range (1M – 16 MHz)
R
F
10
1
M
M
Series resistor
Low range
Low Gain (HGO = 0)
High Gain (HGO = 1)
High range
Low Gain (HGO = 0)
High Gain (HGO = 1)
 8 MHz
4 MHz
MHz
R
S
—
—
—
—
—
—
0
100
0
0
10
20
—
—
—
—
—
—
k
Table 3-9. 5 Volt 10-bit ADC Characteristics (V
REFH
= V
DDAD
, V
REFL
= V
SSAD
)
Characteristic Conditions C Symb Min Typ
1
Max Unit
ICG
EXTAL XTAL
Crystal or Resonator
R
S
C
2
R
F
C
1