參數(shù)資料
型號： MC7447AVU1000LB
廠商： Freescale Semiconductor
文件頁數(shù)： 2/56頁
文件大?。?/td> 0K
描述： IC MPU RISC 32BIT 360-BGA
標準包裝： 44
系列： MPC74xx
處理器類型： 32-位 MPC74xx PowerPC
速度： 1.0GHz
電壓： 1.3V
安裝類型： 表面貼裝
封裝/外殼： 360-BCBGA，F(xiàn)CCBGA
供應商設備封裝： 360-FCCBGA（25x25）
包裝： 托盤
MPC7447A RISC Microprocessor Hardware Specifications, Rev. 5
10
Freescale Semiconductor
Electrical and Thermal Characteristics
Figure 2 shows the undershoot and overshoot voltage on the MPC7447A.
Figure 2. Overshoot/Undershoot Voltage
The MPC7447A provides several I/O voltages to support both compatibility with existing systems and
migration to future systems. The MPC7447A core voltage must always be provided at the nominal voltage
(see Table 4) or at the supported derated voltage (see Section 5.3, “Voltage and Frequency Derating”). The
input voltage threshold for each bus is selected by sampling the state of the voltage select pins at the
negation of the signal HRESET. The output voltage will swing from GND to the maximum voltage applied
to the OVDD power pins. Table 3 provides the input threshold voltage settings. Because these settings may
change in future products, it is recommended that BVSEL be configured using resistor options, jumpers,
or some other flexible means, with the capability to reconfigure the termination of this signal in the future
if necessary.
Storage temperature range
Tstg
–55 to 150
°C
—
Notes:
1. Functional and tested operating conditions are given in Table 4. Absolute maximum ratings are stress ratings only, and
functional operation at the maximums is not guaranteed. Stresses beyond those listed may affect device reliability or cause
permanent damage to the device.
2. Caution: VDD/AVDD must not exceed OVDD by more than 1.0 V during normal operation; this limit may be exceeded for a
maximum of 20 ms during the power-on reset and power-down sequences.
3. Caution: OVDD must not exceed VDD/AVDD by more than 2.0 V during normal operation; this limit may be exceeded for a
maximum of 20 ms during the power-on reset and power-down sequences.
4. BVSEL must be set to 0, such that the bus is in 1.8-V mode.
5. BVSEL must be set to HRESET or 1, such that the bus is in 2.5-V mode.
6. Caution: Vin must not exceed OVDD by more than 0.3 V at any time including during power-on reset.
7. Vin may overshoot/undershoot to a voltage and for a maximum duration as shown in Figure 2.
Table 2. Absolute Maximum Ratings1 (continued)
Characteristic
Symbol
Maximum Value
Unit Notes
VIH
GND
GND – 0.3 V
GND – 0.7 V
Not to Exceed 10%
OVDD + 20%
VIL
OVDD
OVDD + 5%
of tSYSCLK
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