PENTX3
Single-Slot 6U VMEbus Pentium III-Based Processor Board
 Download the Data Sheet (511 kb pdf)
The board is designed around the Intel Pentium III Mobile Module that includes a 500 MHz Pentium III processor, a 256 KB L2 cache, a 440BX Northbridge support chip set to control the processor bus at 66 MHz, and a thermal sensor with programmable trip points. A 33 MHz PCI bus provides access through both Ethernet and SCSI interfaces. The board also supports one 32-bit PCI Mezzanine Card and a PCI Expansion Connector to a PMC Carrier Board.
Key
design and construction features of the PENTX3:
· System memory is available in configurations of 64, 128, or 256 MB of SDRAM operating at 133 MHz. All SDRAM is soldered on the board.
· Video capabilities range from VGA resolution (640 x 480) with 16M colors to XGA resolution (1280 x 1024) with 256 colors.
· Ethernet interface supports 10BASE-T and 100BASE-TX, at full and half duplex, via the backplane connector.
· The SCSI interface supports 8-bit, Ultra SCSI with up to 20MB/s synchronous transfer rates.
· AGP graphics interface with 4 MB SDRAM
· Two EIA-232 serial ports, two EIA-232/422/485 serial ports, and one USB port.
· Error checking and correction memory
| CPU |
| Processor |
Intel
Pentium III |
| Clock
Frequency |
500
MHz |
| Support
Chip Sets |
| Host-PCI
Bridge |
440
BX |
| PCI-ISA
Bridge |
PIIX4E |
| PCI-VME |
Tundra
Universe II |
| MEMORY |
| SDRAM |
Up
to 256 MB |
| Cache |
256
KB L2 Cache |
| SanDisk |
Solid
State IDE Drive, up to 192 MB |
| Flash
EPROM |
512
KB Flash EPROM |
| STANDARD
COMPLIANCE |
| ANSI/VITA
1-1994 VME64 |
| ANSI/VITA
1.1-1997 VME64x |
| IEEE-1386
Common Mezzanine Card (CMC) |
| IEEE
1386.1 PMC, IEEE 1101.2-1992 |
| Conduction-Cooled
PMC VITA20-199x, Draft |
| VMEbus |
| Interface:
MA16/24/32, MD8/16/32/64 |
| Arbiter:
4-level priority or round robin arbiter and Auto-SYSCON |
| Requester:
Fair, RDR or RWD |
| PCI
INTERFACE |
| •
32 bit |
| •
5V @ 33 MHz |
| MISCELLANEOUS |
| Video:
640 x 480, 16M colors to 1280 x 1024, 256 colors |
| Ehternet:
10BASE-T, 100BASE-TX |
| SCSI:
Fast |
| PMC:
One 32-bit site |
| USB:
One port |
| Disk:
DP8477-compatible floppy |
| External
IDE: Secondary IDE interface |
| Serial
Ports: Four; two EIA-232 and two EIA-232/422/485MD |
| Parallel
Port: Output only, bidirectional, ECP, EPP |
| Keyboard
and Mouse: PS/2 |
| Real-time
Clock: DS1287-compatible |
| Voltage
Requirements: +5V, +12V, -12V; 3.3V is generated on
board |
| Battery-Backed
Options: Onboard battery or capacity, or 5V
standby only |
| ENVIRONMENTAL
SPECIFICATIONS |
| Temperature
range |
SA |
WA |
RA |
RC |
| -
Operating |
0°
to +55°C |
-20°
to +65°C |
-40°
to +75°C |
-40°
to +71°C |
| -
Storage |
-45°
to +85°C |
-45°
to +85°C |
-45°
to +100°C |
-45°
to +100°C |
| -
Conformal Coating |
Optional |
Standard |
Standard |
Standard |
| -
Relative Humidity |
90%
noncondensing |
95%
10 cycles 240 hours |
95%
10 cycles 240 hours |
95%
10 cycles 240 hours |
| Mechanical |
|
|
|
|
| -
Vibration Sine |
5-200
Hz - 2g Peak |
5-200
Hz - 2g Peak |
5-2,000
Hz - 2.5g Peak |
5-2,000
Hz - 5g Peak |
| -
Vibration |
0.01
g²/Hz 10-40 Hz |
0.01
g²/Hz 10-40 Hz |
0.04
g²/Hz |
0.1
g²/Hz |
| - Random |
0.0007
g²/Hz 100-200 Hz - 0.00005 g²/Hz 2,000 Hz
|
with
a flat response to 1,000 Hz 6 dB/Oct roll-off from 1
KHz - 2 KHz |
| -
Shock |
10g
Peak 16 ms Half Sine Pulse |
40g
Peak 20 ms Half Sine Pulse |
| -
Bumps |
N/A |
40g
Peak 6 ms Half Sine Pulse 3 bumps/sec and 1,000 bumps/direction |
| -
Altitude |
-1,000
to 15,000 ft |
-1,000
to 33,000 ft |
-1,000
to 33,000 ft |
-1,000
to 50,000 ft |
|