MC7448VU1700LD Freescale Semiconductor, MC7448VU1700LD Datasheet - Page 40

• Manufacturer Part Number: MC7448VU1700LD
• Description: IC MPU RISC 32BIT 360-FCCBGA
• Manufacturer: Freescale Semiconductor

Specifications of MC7448VU1700LD

• Processor Type: MPC74xx PowerPC 32-Bit
• Speed: 1.7GHz
• Voltage: 1.3V
• Mounting Type: Surface Mount
• Package / Case: 360-FCCBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -

System Design Information
9.2.3
The ensure the long-term reliability of the device, the MPC7448 requires that transients on the core power
rail (V
specifications. That is, the device may be operated continuously with V
without adversely affecting the device’s reliability. Excursions above the stated recommended operation
range, including overshoot during power-up, can impact the long-term reliability of the device. Excursions
are described by their amplitude and duration. Duration is defined as the time period during which the V
power plane, as measured at the VDD_SENSE pins, will be within a specific voltage range, expressed as
percentage of the total time the device will be powered up over the device lifetime. In practice, the period
over which transients are measured can be any arbitrary period of time that accurately represents the
expected range of processor and system activity. The voltage ranges and durations for normal operation
and transients are described in
Note that, to simplify transient measurements, the duration of the excursion into the High Transient region
is also included in the Low Transient duration, so that only the time the voltage is above each threshold
must be considered.
40
V
V
DD (maximum)
V
DD (minimum)
DD (nominal)
DD
1.40 V
1.35 V
) be constrained. The recommended operating voltage specifications provided in
At recommended operating temperatures. See
Normal
Low Transient
High Transient
Notes:
1. Permitted duration is defined as the percentage of the total time the device is powered on that the V
2. See
3. To simplify measurement, excursions into the High Transient region are included in this duration.
4. Excursions above the absolute maximum rating of 1.4 V are not permitted; see
Transient Specifications
power supply voltage may exist within the specified voltage range.
Voltage Region
Table 4
Figure 19
for nominal V
MPC7448 RISC Microprocessor Hardware Specifications, Rev. 4
Table 14. VDD Power Supply Transient Specifications
shows an example of measuring voltage transients.
Table
A + B < T • 10%
DD
Figure 19. Voltage Transient Example
C < T • 0.2%
specifications.
14.
V
V
DD
DD
A
1.35 V
maximum
minimum
Min
Table
Voltage Range (V)
4.
T
V
DD
1.35 V
1.40 V
maximum
Max
B
C
DD
Duration
Permitted
within the specified range
100%
0.2%
10%
Table
1
2.
Freescale Semiconductor
Notes
High Transient
Normal
Low Transient
Table 4
2, 3
2
4
DD
are DC
DD