Keithley 707B – Six-slot Semiconductor Switch Mainframe

The Keithley 707B is a six-slot semiconductor switch mainframe engineered for high-speed switching and matrix routing in production and laboratory semiconductor test environments. It accommodates up to six 8×12 matrix cards, delivering 576 crosspoints per mainframe with command-to-connect speed significantly faster than earlier Series 700 mainframes. The 707B stores hundreds of switching configurations in non-volatile memory, includes 14 bits of digital I/O, and provides four independent remote programming interfaces for flexible system integration.

## Technical Specifications

**Architecture & Switching**
• Six-slot mainframe supporting up to 576 crosspoints per unit
• Maximum relay drive: 30W per slot (6V @ 5.0A), 162W total (6V @ 27.0A)
• Non-volatile memory stores hundreds of switching configurations and channel patterns
• Digital I/O: 14 bits with 25-pin female D connector

**Electrical**
• Power supply: 100V to 240V AC, 50–60 Hz
• Maximum consumption: 210VA (707B)
• Digital I/O input voltage range: -0.25V to 5.25V absolute
• Maximum logic low: 0.7V @ 850µA; maximum logic high: 2.1V @ 570µA
• Maximum source current: 960µA per bit
• Maximum sink current: -11mA absolute; -5.0mA at 0.7V logic low
• 5V supply pin: 600mA with solid-state fuse protection
• Free-running timer: 47-bit counter with 1MHz clock (4-year rollover)

**Physical**
• Dimensions: 432mm W × 356mm H × 574mm D (17.0 in × 14.0 in × 22.6 in)
• With installed card: 432mm W × 356mm H × 612mm D (17.0 in × 14.0 in × 24.1 in)

## Key Features

• LXI Class C, USB 2.0 (USBTMC), GPIB (IEEE-488.1/.2), and Ethernet (10/100BaseT) interfaces
• TSP-Link technology for high-speed inter-unit communication
• Front-panel manual programming with navigation knob and keypad
• Device Dependent Command (DDC) compatibility with 707A/708A models for simplified migration

## Typical Applications

• High-volume semiconductor device testing and characterization
• Parametric and functional test sequences with reduced cycle time
• Multi-channel relay matrix switching for low-current measurement systems
• Production and engineering lab environments requiring flexible configuration management

## Compatibility & Integration

The 707B maintains command-level compatibility with 707A and 708A predecessors, supporting direct migration of existing test programs without full revalidation.