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| 型號(hào)： | MC7445ARX933LG |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 933 MHz, RISC PROCESSOR, CBGA360 |
| 封裝： | 25 X 25 MM, 1.27 MM PITCH, CERAMIC, BGA-360 |
| 文件頁數(shù)： | 4/68頁 |
| 文件大小： | 1609K |
| 代理商： | MC7445ARX933LG |
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12
MPC7455 RISC Microprocessor Hardware Specifications
MOTOROLA
Electrical and Thermal Characteristics
Table 4 provides the recommended operating conditions for the MPC7455.
Table 3. Input Threshold Voltage Setting
BVSEL Signal
Processor Bus Input
Threshold is Relative to:
L3VSEL Signal 5
L3 Bus Input Threshold is
Relative to:
Notes
0
1.8 V
0
1.8 V
1, 4
HRESET
Not Available
HRESET
1.5 V
1, 3
HRESET
2.5 V
HRESET
2.5 V
1, 2
1
2.5 V
1
2.5 V
1
Notes:
1. Caution: The input threshold selection must agree with the OVDD/GVDD voltages supplied. See notes in Table 2.
2. To select the 2.5-V threshold option for the processor bus, BVSEL should be tied to HRESET so that the two
signals change state together. Similarly, to select 2.5 V for the L3 bus, tie L3VSEL to HRESET. This is the
preferred method for selecting this mode of operation.
3. Applicable to L3 bus interface only. HRESET is the inverse of HRESET.
4. If used, pulldown resistors should be less than 250
.
5. Not implemented on MPC7445.
Table 4. Recommended Operating Conditions 1
Characteristic
Symbol
Recommended Value
Unit
Notes
Min
Max
Core supply voltage
VDD
1.3 V ± 50 mV
V
PLL supply voltage
AVDD
1.3 V ± 50 mV
V
2
Processor bus supply voltage
BVSEL = 0
OVDD
1.8 V ± 5%
V
BVSEL = HRESET or OVDD
OVDD
2.5 V ± 5%
V
L3 bus supply voltage
L3VSEL = 0
GVDD
1.8 V ± 5%
V
L3VSEL = HRESET or GVDD
GVDD
2.5 V ± 5%
V
L3VSEL = HRESET
GVDD
1.5 V ± 5%
V
Input voltage
Processor bus
Vin
GND
OVDD
V
L3 bus
Vin
GND
GVDD
V
JTAG signals
Vin
GND
OVDD
V
Die-junction temperature
Tj
0
105
°C
Notes:
1. These are the recommended and tested operating conditions. Proper device operation outside of these conditions
is not guaranteed.
2. This voltage is the input to the filter discussed in Section 1.9.2, “PLL Power Supply Filtering,” and not necessarily
the voltage at the AVDD pin which may be reduced from VDD by the filter.
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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