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参数资料
型号： 440EPX
厂商： Applied Micro Circuits Corp.
英文描述： PowerPC 440EPx Embedded Processor
中文描述： 嵌入式处理器的PowerPC 440EPx
文件页数： 64/94页
文件大小： 738K
代理商： 440EPX
440EPx – PPC440EPx Embedded Processor
Revision 1.26 – October 15, 2007
AMCC Proprietary
67
Preliminary Data Sheet
Input Logic High 3.3V PCI
VIH
0.5OVDD
OVDD+0.5
V
1
Input Logic High 3.3V LVTTL
+2.0
+3.6
V
Input Logic High 2.5V CMOS, 3.3V tolerant
+1.7
+3.6
V
Input Logic High 1.8V DDR2 (2.5V DDR1)
SVREF +
0.125 (0.15)
2.2 (3.0)
V
Input Logic Low 3.3V PCI
VIL
0.5
0.35OVDD
V
1
Input Logic Low 3.3V LVTTL
0
+0.8
V
Input Logic Low 2.5V CMOS
0
+0.7
V
Input Logic Low 1.8V DDR2 (2.5V DDR1)
-0.3 (-0.3)
SVREF
0.125 (0.15)
V
Output Logic High 3.3V PCI
VOH
0.9OVDD
-
V
1
Output Logic High 3.3V LVTTL
+2.4
+3.6
V
Output Logic High 2.5V CMOS
+2.0
+2.7
V
Output Logic High 1.8V DDR2 (2.5V DDR1)
+0.95 (+1.7)
+1.95 (+2.7)
V
5
Output Logic Low 3.3V PCI
VOL
-
0.1OVDD
V
1
Output Logic Low 3.3V LVTTL
0
+0.4
V
Output Logic Low 2.5V CMOS
0
+0.4
V
Output Logic Low 1.8V DDR2 (2.5V DDR1)
0
+0.43 (+0.54)
V
5
Input Leakage Current (no pull-up or pull-down)
IIL1
0
μA
Input Leakage Current for pull-down
IIL2
0 (LPDL)
200 (MPUL)
μA
Input Leakage Current for pull-up
IIL3
150 (LPDL)
0 (MPUL)
μA
Input Max Allowable Overshoot 3.3V LVTTL
VIMAO
+3.9
V
Input Max Allowable Undershoot 3.3V LVTTL
VIMAU
0.6
V
Output Max Allowable Overshoot 3.3V LVTTL
VOMAO
+3.9
V
Output Max Allowable Undershoot 3.3V LVTTL
VOMAU3
0.6
V
Case Temperature
TC
40
+100
°C
6
Notes:
1. PCI drivers meet PCI specifications.
2. SVREF = SOVDD/2. SOVDD = +1.8V for DDR2 memory or +2.5V for DDR1 memory.
3. The analog voltages used for the on-chip PLLs can be derived from the logic voltage, but must be filtered before entering the
PPC440EPx. See “Absolute Maximum Ratings” on page 66.
4. Startup sequencing of the power supply voltages is not required. A power-down cycle must complete (OVDD and VDD are below
+0.4V) before a new power-up cycle is started
5. At IOH = IOL= 10ma.
6. Case temperature, TC, is measured at top center of case surface with device soldered to a circuit board.
Table 10. Recommended DC Operating Conditions (Sheet 2 of 2)
Device operation beyond the conditions specified is not recommended. Extended operation beyond the recommended
conditions can affect device reliability.
Parameter
Symbol
Minimum
Typical
Maximum
Unit
Notes
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