參數(shù)資料
型號(hào): MC9RS08KA8CPG
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PDIP16
封裝: ROHS COMPLIANT, PLASTIC, DIP-16
文件頁(yè)數(shù): 10/42頁(yè)
文件大?。?/td> 949K
代理商: MC9RS08KA8CPG
MC9RS08KA8 Series MCU Data Sheet, Rev. 4
Electrical Characteristics
Freescale Semiconductor
18
3.8
External Oscillator (XOSC) Characteristics
3.9
AC Characteristics
This section describes AC timing characteristics for each peripheral system.
Table 9. Oscillator Electrical Specifications (Temperature Range = –40 to 125
°C Ambient)
Num
C
Rating
Symbol
Min
Typical1
1 Typical data was characterized at 5.0 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 mode 2
High range (RANGE = 1, HGO = 1) FBELP mode
High range (RANGE = 1, HGO = 0) FBELP mode
2 The input clock source must be divided using RDIV to within the range of 31.25 kHz to 39.0625 kHz.
flo
fhi
fhi-hgo
fhi-lp
32
1
38.4
5
16
8
kHz
MHz
2
D
Load capacitors
C1, C2
See crystal or resonator
manufacturer’s
recommendation.
3D
Feedback resistor
Low range (32 kHz to 100 kHz)
High range (1 MHz to 16 MHz)
RF
10
1
M
Ω
4D
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
5C
Crystal start-up time 3
Low range, low gain (RANGE = 0, HGO = 0)
Low range, high gain (RANGE = 0, HGO = 1)
High range, low gain (RANGE = 1, HGO = 0)4
High range, high gain (RANGE = 1, HGO = 1)4
3 This parameter is characterized and not tested on each device. Proper PC board layout procedures must be followed to
achieve specifications.
4 4 MHz crystal.
t
CSTL-LP
t
CSTL-HGO
t
CSTH-LP
t
CSTH-HGO
200
400
5
20
ms
6D
Square wave input clock frequency (EREFS = 0, ERCLKEN = 1)
FEE or FBE mode 2
FBELP mode
fextal
0.03125
0
5
40
MHz
MCU
EXTAL
XTAL
Crystal or Resonator
RS
C2
RF
C1
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