參數(shù)資料
型號(hào): 9S12DT128BDGV1
英文描述: 9S12DT128B Device Guide
中文描述: 9S12DT128B設(shè)備指南
文件頁數(shù): 85/126頁
文件大小: 1809K
代理商: 9S12DT128BDGV1
MC9S12DJ64 Device User Guide — V01.17
85
Appendix A Electrical Characteristics
A.1 General
This introduction is intended to give an overview on several common topics like power supply, current
injection etc.
A.1.1 Parameter Classification
The electrical parameters shown in this supplement are guaranteed by various methods. To give the
customer a better understanding the following classification is used and the parameters are tagged
accordingly in the tables where appropriate.
NOTE:
This classification is shown in the column labeled “C” in the parameter tables
where appropriate.
P:
Those parameters are guaranteed during production testing on each individual device.
C:
Those parameters are achieved by the design characterization by measuring a statistically relevant
sample size across process variations.
T:
Those parameters are achieved by design characterization on a small sample size from typical devices
under typical conditions unless otherwise noted. All values shown in the typical column are within
this category.
D:
Those parameters are derived mainly from simulations.
A.1.2 Power Supply
The MC9S12DJ64 utilizes several pins to supply power to the I/O ports, A/D converter, oscillator, PLL
and internal logic.
TheVDDA,VSSApairsuppliestheA/Dconverterandtheresistorladderoftheinternalvoltageregulator.
The VDDX, VSSX, VDDR and VSSR pairs supply the I/O pins, VDDR supplies also the internal voltage
regulator.
VDD1, VSS1, VDD2 and VSS2 are the supply pins for the digital logic, VDDPLL, VSSPLL supply the
oscillator and the PLL.
VSS1 and VSS2 are internally connected by metal.
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