参数资料
型号: MC9S08JS16CWJ
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: MICROCONTROLLER, PDSO20
封装: ROHS COMPLIANT, MS-013AC, SOIC-20
文件页数: 9/32页
文件大小: 2561K
代理商: MC9S08JS16CWJ
Electrical Characteristics
MC9S08JS16 Series MCU Data Sheet, Rev. 4
Freescale Semiconductor
17
3.7
External Oscillator (XOSC) Characteristics
Table 8. Oscillator Electrical Specifications (Temperature Range = –40 to 85
°C Ambient)
Num
C
Rating
Symbol
Min
Typ1
1 Typical data was characterized at 3.0 V, 25
°C or is recommended value.
Max
Unit
1C
Oscillator crystal or resonator (EREFS = 1, ERCLKEN = 1)
Low range (RANGE = 0)
High range (RANGE = 1) FEE or FBE mode2
High range (RANGE = 1) PEE or PBE mode3
High range (RANGE = 1, HGO = 1) BLPE mode
High range (RANGE = 1, HGO = 0) BLPE mode
2 When MCG is configured for FEE or FBE mode, input clock source must be divided using RDIV to within the range of 31.25 kHz
to 39.0625 kHz.
3 When MCG is configured for PEE or PBE mode, input clock source must be divided using RDIV to within the range of 1 MHz to
2 MHz.
flo
fhi-fll
fhi-pll
fhi-hgo
fhi-lp
32
1
38.4
5
16
8
kHz
MHz
2
— Load capacitors
C1, C2
See crystal or resonator
manufacturer’s recommendation.
3—
Feedback resistor
Low range (32 kHz to 38.4 kHz)
High range (1 MHz to 16 MHz)
RF
10
1
M
Ω
4—
Series resistor
Low range, low gain (RANGE = 0, HGO = 0)
Low range, high gain (RANGE = 0, HGO = 1)
High range, low gain (RANGE = 1, HGO = 0)
High range, high gain (RANGE = 1, HGO = 1)
≥ 8 MHz
4 MHz
1 MHz
RS
0
100
0
0
10
20
k
Ω
5T
Crystal start-up time4
Low range, low gain (RANGE = 0, HGO = 0)
Low range, high gain (RANGE = 0, HGO = 1)
High range, low gain (RANGE = 1, HGO = 0)5
High range, high gain (RANGE = 1, HGO = 1)5
4 This parameter is characterized and not tested on each device. Proper PC board layout procedures must be followed to achieve
specifications.
5 4 MHz crystal.
t
CSTL-LP
t
CSTL-HGO
t
CSTH-LP
t
CSTH-HGO
200
400
5
15
ms
6T
Square wave input clock frequency (EREFS = 0, ERCLKEN = 1)
FEE or FBE mode2
PEE or PBE mode3
BLPE mode
fextal
0.03125
1
0
5
16
40
MHz
MCU
EXTAL
XTAL
Crystal or Resonator
RS
C2
RF
C1
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