MSC8144EC Datasheet, PDF (27/80 Pages) Freescale Semiconductor, Inc – Quad Core Digital Signal Processor

Electrical Characteristics
2.2 Recommended Operating Conditions
Table 3 lists recommended operating conditions. Proper device operation outside of these conditions is not guaranteed.
Table 3. Recommended Operating Conditions
Rating
Symbol
Min
Nominal
Max
Core supply voltage
PLL supply voltage
M3 memory Internal voltage
DDR memory supply voltage
• DDR mode
• DDR2 mode
DDR reference voltage
Ethernet 1 I/O voltage
• 2.5 V mode
• 3.3 V mode
V_DD
V_DDPLL0
V_DDPLL1
V_DDPLL2
V_DDM3
V_DDDDR
MV_REF
V_DDGE1
0.97
0.97
1.213
2.375
1.71
0.49 × V_DDDDR
2.375
3.135
1.0
1.0
1.25
2.5
1.8
0.5 × V_DDDDR
2.5
3.3
1.05
1.05
1.313
2.625
1.89
0.51 × V_DDDDR
2.625
3.465
Ethernet 2 I/O voltage
V_DDGE2
• 2.5 V mode
2.375
2.5
2.625
• 3.3 V mode
3.135
3.3
3.465
I/O voltage excluding Ethernet,
V_DDIO
3.135
3.3
3.465
DDR, M3, and RapidIO lines
M3 memory I/O and M3 charge
V_DDM3IO
2.375
2.5
2.625
pump voltage
V_25M3
Rapid I/O C voltage
V_DDSXC
0.95
1.0
1.05
Rapid I/O P voltage
V_DDSXP
• Short run (haul) mode
0.95
1.0
1.05
• Long run (haul) mode
1.14
1.2
1.26
Rapid I/O PLL voltage
V_DDRIOPLL
0.95
1.0
1.05
Operating temperature range:
• Standard
T_J
0
90
• Extended
T_A
–40
—
T_J
—
105
Note: PLL supply voltage is specified at input of the filter and not at pin of the MSC8144EC (see Figure 45).
Unit
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
°C
°C
°C
2.3 Default Output Driver Characteristics
Table 4 provides information on the characteristics of the output driver strengths. The values are preliminary estimates.
Table 4. Output Drive Impedance
DDR signal
DDR2 signal
PCI signals
Rapid I/O signals
Other signals
Driver Type
Output Impedance (Ω)
18
18
35 (half strength mode)
25
100
50
MSC8144EC Quad Core Digital Signal Processor Data Sheet, Rev. 6
Freescale Semiconductor
27