參數(shù)資料
型號(hào)： MAC7106VPV40
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, FLASH, 40 MHz, RISC MICROCONTROLLER, PQFP144
封裝： 20 X 20 MM, 0.50 MM PITCH, LQFP-144
文件頁數(shù)： 3/56頁
文件大小： 1216K
代理商： MAC7106VPV40
ElectricalCharacteristics
MAC7100 Microcontroller Family Hardware Specifications, Rev. 1.2
Preliminary
Freescale Semiconductor
11
3.7
Power Supply
The MAC71xx Family utilizes several pins to supply power to the oscillator, PLL, digital core, I/O ports
and ATD. In the context of this section, VDD5 is used for VDDA, VDDR or VDDX; VSS5 is used for VSSA,
VSSR or VSSX unless otherwise noted. IDD5 denotes the sum of the currents flowing into the VDDA,
VDDX, and VDDR. VDD is used for VDD2.5, and VDDPLL, VSS is used for VSS2.5 and VSSPLL. IDD is
used for the sum of the currents flowing into VDD2.5 and VDDPLL.
3.7.1
Current Injection
The power supply must maintain regulation within the VDD5 or VDD2.5 operating range during
instantaneous and operating maximum current conditions. If positive injection current (Vin > VDD5) is
greater than IDD5, the injection current may flow out of VDD5 and could result in the external power supply
going out of regulation. It is important to ensure that the external VDD5 load will shunt current greater than
the maximum injection current. The greatest risk will be when the MCU is consuming very little power
(for example, if no system clock is present, or if the clock rate is very low).
3.7.2
Power Supply Pins
The VDDR – VSSR pair supplies the internal voltage regulator. The VDDA – VSSA pair supplies the A/D
converter and the reference circuit of the internal voltage regulator. The VDDX – VSSX pair supplies the
I/O pins. VDDPLL – VSSPLL pair supplies the oscillator and PLL.
All VDDX pins are internally connected by metal. All VSSX pins are internally connected by metal. All
VSS2.5 pins are internally connected by metal. VDDA, VDDX and VDDR as well as VSSA, VSSX and VSSR
are connected by anti-parallel diodes for ESD protection.
3.7.3
Supply Current Characteristics
Table 15 and Table 16 list supply current characteristics for MAC71x1 and MAC71x6 devices at 40 MHz
and 50 MHz operation, respectively. Characteristics for MAC71x2 devices are to be determined (TBD).
All current measurements are without output loads. Unless otherwise noted the currents are measured in
single chip mode, internal voltage regulator enabled at the specified system frequency, using a 4 MHz
oscillator in low power mode. Production testing is performed using a square wave signal at the EXTAL
input. In expanded modes, the currents are highly dependent on the load and duty cycle on the address,
data and control signals, thus no general numbers can be given. A good estimate is to take the single chip
currents and add the currents due to the external loads.
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