参数资料
型号: MC9S08GW64CLH
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: MICROCONTROLLER, PQFP64
封装: 10 X 10 MM, ROHS COMPLIANT, LQFP-64
文件页数: 21/42页
文件大小: 1004K
代理商: MC9S08GW64CLH
MC9S08GW64 Series MCU Data Sheet, Rev. 3
Electrical Characteristics
Freescale Semiconductor
28
Figure 16. Deviation of DCO Output from Trimmed Frequency (20 MHz, 3.0 V)
3.10
AC Characteristics
This section describes timing characteristics for each peripheral system.
9
C
Total deviation from trimmed DCO output frequency over
fixed voltage and temperature range of 0
C to 70 C
f
dco_t
0.5
1
%fdco
10
C
FLL acquisition time 2
tAcquire
——
1
ms
11
C
Long term jitter of DCO output clock (averaged over 2-ms
interval) 3
CJitter
0.02
0.2
%fdco
1 Data in Typical column was characterized at 3.0 V, 25
C or is typical recommended value.
2 This specification applies to any time the FLL reference source or reference divider is changed, trim value changed or
changing from FLL disabled (FBELP, FBILP) to FLL enabled (FEI, FEE, FBE, FBI). If a crystal/resonator is being used as
the reference, this specification assumes it is already running.
3 Jitter is the average deviation from the programmed frequency measured over the specified interval at maximum f
Bus.
Measurements are made with the device powered by filtered supplies and clocked by a stable external clock signal. Noise
injected into the FLL circuitry via VDD and VSS and variation in the crystal oscillator frequency increase the CJitter
percentage for a given interval.
Table 12. ICS Frequency Specifications (Temperature Range = –40 to 85
C Ambient) (continued)
Num
C
Characteristic
Symbol
Min
Typ1
Max
Unit
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