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General Information
Preprocessor
Interface
Characteristics
Microprocessor
Compatibility:
CPU Package Supported:
Maximum Clock Speed:
State Speed:
Maximum Analyzer
Clock Speed:
Signal Line Loading:
Microprocessor
Operations Displayed:
Timing Analysis:
Power Requirements:
HP E2444A
80386DX/DXL Preprocessor Interface
The following operating characteristics are not specifications, but are
typical operating characteristics for the HP E2444A Preprocessor
Interface. These characteristics are included as additional information
for the user.
Intel 80386DX/DXL and all microprocessors made by other
manufacturers that comply with Intel 80386DX/DXL specifications.
The HP E2444A also supports static microprocessors such as the
Am 386DXL.
132-pin PGA
40 MHz clock output (CLK); 80 MHz clock input (CLK2).
Four CLK2 cycles per bus cycle.
20 MHz state speed with CLK2 at 80 MHz.
Approximately 15 pF on ADS and READY.
Approximately 8 pF on all other lines.
Memory Read/Write
I/O Read/Write
Opcode Fetch
Interrupt Acknowledge Type 0-255
Halt
Shutdown
80287 or 80387 Coprocessor Operations
All signals are buffered by a 74FCT646ATQ gate, with a 2 ns
channel-to-channel skew.
1.0 A at + 5 Vdc maximum, supplied by the logic analyzer.
3
General Information
3-1
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