Keysight (Agilent) 1671A Timing Benchtop Deep Memory Logic Analyzer, 102-Channel, 70 MHz State/250 MHz

The Keysight (Agilent) 1671A is a 102-channel benchtop logic analyzer designed for debugging and validation of complex digital systems, particularly embedded microprocessor architectures. It captures extended operational sequences through deep memory acquisition, correlate high-level language code with real-time processor traces and analyze critical hardware timing relationships over prolonged periods. The instrument combines state and timing analysis capabilities with integrated mass storage and network connectivity for laboratory and remote operation.

Technical Specifications

• Channels: 102


• State Speed: 70 MHz


• Timing Speed: 250 MHz


• Acquisition Memory: 64K standard per channel; 500K optional per channel


• Mass Storage: Internal hard drive


• Removable Media: 3.5-inch high-density floppy disk (DOS and LIF formats)


• Network Interface: 10Base-T and 10Base-2 LAN connectors


• Programmable Interfaces: HP-IB and RS-232


• Printer Port: Centronics


• Form Factor: Benchtop


• Operating Environment: Indoor use only


• Humidity Limit: Non-condensing

Key Features

• Deep memory acquisition enables extended capture and processor mnemonic analysis over sustained operational windows


• Simultaneous time-correlated state and timing analysis across configurable channel subsets


• Source code correlation with C++ and high-level languages via standard Ethernet interface for real-time microprocessor trace capture


• Transitional timing mode conserves acquisition memory by storing samples only on data state changes


• Remote operation support via X-Windows and data transfer protocols (FTP/NFS)


• Data export in ASCII format; screen captures in PCX, TIFF, and EPS formats

Typical Applications

• Embedded microprocessor system debugging and hardware/software defect identification


• Real-time processor trace correlation with host application code execution


• Complex digital system validation and timing verification


• Extended-duration behavioral analysis of digital circuits

Compatibility & Integration The 1671A integrates into laboratory environments through LAN-based remote operation, Centronics printer connectivity, and standard laboratory programming interfaces (HP-IB, RS-232). When deployed in a 16700-series mainframe, power is supplied through the mainframe backplane connector.