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參數(shù)資料
| 型號(hào)： | 9S12KT256DGV1 |
| 英文描述： | MC9S12KT256 Device User Guide |
| 中文描述： | MC9S12KT256設(shè)備用戶指南 |
| 文件頁數(shù)： | 70/126頁 |
| 文件大?。?/td> | 7307K |
| 代理商： | 9S12KT256DGV1 |
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Device User Guide — 9S12KT256DGV1/D V01.09
70
Freescale Semiconductor
2.4.1 VDDX,VSSX — Power Supply Pins for I/O Drivers
External power and ground for I/O drivers. Because fast signal transitions place high, short-duration
current demands on the power supply, use bypass capacitors with high-frequency characteristics and place
them as close to the MCU as possible. Bypass requirements depend on how heavily the MCU pins are
loaded.
2.4.2 VDDR, VSSR — Power Supply Pins for I/O Drivers & for Internal Voltage
Regulator
External power and ground for I/O drivers and input to the internal voltage regulator. Because fast signal
transitions place high, short-duration current demands on the power supply, use bypass capacitors with
high-frequency characteristics and place them as close to the MCU as possible. Bypass requirements
depend on how heavily the MCU pins are loaded.
2.4.3 VDD1, VDD2, VSS1, VSS2 — Power Supply Pins for Internal Logic
Power is supplied to the MCU through VDD and VSS. Because fast signal transitions place high,
short-duration current demands on the power supply, use bypass capacitors with high-frequency
characteristics and place them as close to the MCU as possible. This 2.5V supply is derived from the
internal voltage regulator. There is no static load on those pins allowed. The internal voltage regulator is
turned off, if VREGEN is tied to ground.
NOTE:
No load allowed except for bypass capacitors.
2.4.4 VDDA, VSSA — Power Supply Pins for ATD and VREG
VDDA, VSSA are the power supply and ground input pins for the voltage regulator and the analog to
digital converter. It also provides the reference for the internal voltage regulator. This allows the supply
voltage to the ATD and the reference voltage to be bypassed independently.
2.4.5 VRH, VRL — ATD Reference Voltage Input Pins
VRH and VRL are the reference voltage input pins for the analog to digital converter.
2.4.6 VDDPLL, VSSPLL — Power Supply Pins for PLL
Provides operating voltage and ground for the Oscillator and the Phased-Locked Loop. This allows the
supply voltage to the Oscillator and PLL to be bypassed independently. This 2.5V voltage is generated by
the internal voltage regulator.
NOTE:
No load allowed except for bypass capacitors.
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| 9V3 | ELEMENT 10 MICRON E MEDIA |
| 6RS15 | Power-Supply Monitor with Reset |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| 9S12XDP512DGV1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Device User Guide for Mask Set 0L40V ( First Silicon) |
| 9S12XDP512DGV2 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Device User Guide for Mask Set L15Y - (Second Silicon - Enhanced Feature Set) |
| 9S-14.7456MEFA20-IND | 制造商:Hong Kong Crystal 功能描述:14.7456M,CRYSTAL 制造商:Hong Kong Crystal 功能描述:HC49US CRYSTALS METAL CAN 制造商:Hong Kong Crystal 功能描述:HC49USCRYSTALS METAL CAN |
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