mc9s08lg32 Freescale Semiconductor, Inc, mc9s08lg32 Datasheet - Page 26

• Manufacturer Part Number: mc9s08lg32
• Description: 8-bit Hcs08 Central Processor Unit
• Manufacturer: Freescale Semiconductor, Inc

Electrical Characteristics
1
2
26
Input
Resistance
Analog Source
Resistance
ADC
Conversion
Clock Freq.
Characteristic
Typical values assume V
reference only and are not tested in production.
DC potential difference.
V
AS
+
–
R
AS
12-bit mode
10-bit mode
8-bit mode (all valid f
High Speed (ADLPC = 0)
Low Power (ADLPC = 1)
f
f
f
f
ADCK
ADCK
ADCK
ADCK
DDAD
Conditions
Table 12. 12-bit ADC Operating Conditions (continued)
C
AS
Figure 18. ADC Input Impedance Equivalency Diagram
Z
—
> 4MHz
< 4MHz
> 4MHz
< 4MHz
= 5.0 V, Temp = 25 °C, f
AS
ADCK
V
MC9S08LG32 Series Data Sheet, Rev. 4
Preliminary - Subject to Change Without Notice
+
–
ADIN
)
INPUT PIN EQUIVALENT
Pad
leakage
due to
input
protection
INPUT PIN
INPUT PIN
INPUT PIN
Symb
R
f
ADCK
R
SIMPLIFIED
ADIN
AS
CIRCUIT
ADCK
= 1.0 MHz unless otherwise stated. Typical values are for
Min
0.4
0.4
—
—
—
—
—
—
Typ
Z
—
—
—
—
—
—
—
ADIN
5
1
CHANNEL SELECT
R
R
R
R
SIMPLIFIED
ADIN
ADIN
ADIN
ADIN
CIRCUIT
Max
8.0
4.0
10
10
7
2
5
5
MHz
Unit
kΩ
kΩ
C
Freescale Semiconductor
ADIN
External to MCU
ADC SAR
ENGINE
Comment
—
—