The Keysight (Agilent/HP) 16550A is a 102-channel state and timing logic analyzer module designed for the HP 16500 series mainframes. Operating with a 100 MHz state clock rate and up to 500 MHz timing sample rate, the 16550A provides versatile, time-correlated state and timing analysis. It features 4K samples of acquisition memory per channel (expandable to 8K in half-channel mode) and advanced transitional timing to maximize memory efficiency.
Specifications
Physical
| Parameter | Value |
|---|---|
| Slot Width | 1 slot |
Channel & Acquisition
| Parameter | Value |
|---|---|
| Total Measurement Channels | 102 |
| Channels per Pod | 17 |
| Number of Pods | 6 |
| Maximum State Clock Rate | 100 MHz |
| Maximum Timing Sample Rate - Full Channel | 250 MHz |
| Maximum Timing Sample Rate - Half Channel | 500 MHz |
| Maximum Memory Depth - Full Channel | 4,096 samples |
| Maximum Memory Depth - Half Channel | 8,192 samples |
| Input Capacitance | 8 pF |
| Input Resistance | 100 kΩ |
| Input Dynamic Range | ±10 V |
| Minimum Input Voltage Swing | 500 mV peak-to-peak |
| Threshold Voltage Range | -6.0 V to +6.0 V |
| Threshold Resolution | 50 mV |
| Threshold Setting Accuracy | ±(100 mV + 3% of setting) |
State Analysis
| Parameter | Value |
|---|---|
| Maximum State Clock Frequency | 100 MHz |
| State Clock Edge Selectivity | Rising, falling, or both |
| State Clock Setup Time | Selectable 3.5 ns to 0 ns in 500 ps increments |
| State Clock Hold Time | Selectable 0 ns to 3.5 ns in 500 ps increments |
| Minimum State Clock Pulse Width | 3.5 ns |
| State Time-Tagging Resolution | 8 ns |
| State Tagging Modes | Time or State |
| Minimum State Clock Period | 10 ns |
Triggering & Sequencing
| Parameter | Value |
|---|---|
| Trigger Sequence Levels | 12 |
| Pattern Resource Terms | 10 |
| Range Resource Terms | 2 |
| Edge/Glitch Resource Terms | 2 |
| Occurrence Counter Range | 1 to 1,048,575 |
Host Frame & Interoperability
| Parameter | Value |
|---|---|
| Maximum Modules per Frame | 5 |
Cabling & Probing
| Parameter | Value |
|---|---|
| Probe Tip Input Resistance | 100 kΩ |
| Probe Tip Input Capacitance | 8 pF |
System Integration
| Parameter | Value |
|---|---|
| Intermodule Bus Support | Yes (supports cross-triggering and time-correlation with other modules via mainframe backplane) |
Configuration
| Parameter | Value |
|---|---|
| Maximum Multi-card Channels | 510 channels (using 5 cards in a single mainframe) |
Input Characteristics
| Parameter | Value |
|---|---|
| Maximum Probe Input Voltage | ±40 V peak |
| Threshold Presets | TTL, ECL |
Technology
Logic Analyzer Module
Applications
Digital hardware design, embedded systems debugging, timing and state verification