參數(shù)資料
型號: S12SCIV2D
廠商: Motorola, Inc.
英文描述: MC9S12DT128 Device User Guide V02.09
中文描述: MC9S12DT128設備的用戶手冊V02.09
文件頁數(shù): 97/138頁
文件大?。?/td> 2083K
代理商: S12SCIV2D
MC9S12DT128 Device User Guide — V02.09
97
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.
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. They are regularly verified by production monitors.
T:
Those parameters are achieved by design characterization on a small sample size from typical
devices. 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 MC9S12DT128 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.
VDDA, VDDX, VDDR as well as VSSA, VSSX, VSSR are connected by anti-parallel diodes for ESD
protection.
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