参数资料
型号: MC9S08LL16CGT
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, QCC48
封装: ROHS COMPLIANT, TQFN-48
文件页数: 30/44页
文件大小: 951K
代理商: MC9S08LL16CGT
MC9S08LL16 Series MCU Data Sheet, Rev. 6
Electrical Characteristics
Freescale Semiconductor
36
Figure 25. ADC Input Impedance Equivalency Diagram
Ref Voltage
High
VREFH
1.8
VDDA
V
Input Voltage
VADIN
VREFL
—VREFH
V
Input
Capacitance
CADIN
—4.5
5.5
pF
Input
Resistance
RADIN
—5
7
k
Analog Source
Resistance
12-bit mode
fADCK > 4MHz
fADCK < 4MHz
RAS
2
5
k
External to MCU
10-bit mode
fADCK > 4MHz
fADCK < 4MHz
5
10
8-bit mode (all valid fADCK)—
10
ADC
Conversion
Clock Freq.
High speed (ADLPC = 0)
fADCK
0.4
8.0
MHz
Low power (ADLPC = 1)
0.4
4.0
1 Typical values assume V
DDA = 3.0 V, Temp = 25 C, fADCK=1.0 MHz unless otherwise stated. Typical values are for
reference only and are not tested in production.
2 DC potential difference.
Table 17. 12-bit ADC Operating Conditions
Characteristic
Conditions
Symb
Min
Typ1
Max
Unit
Comment
+
+
VAS
RAS
CAS
VADIN
ZAS
Pad
leakage
due to
input
protection
ZADIN
SIMPLIFIED
INPUT PIN EQUIVALENT
CIRCUIT
RADIN
ADC SAR
ENGINE
SIMPLIFIED
CHANNEL SELECT
CIRCUIT
INPUT PIN
RADIN
CADIN
INPUT PIN
RADIN
INPUT PIN
RADIN
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