Bus Driver Type R650

Summary

The R650 is a versatile logic component featuring two inverting bus drivers designed to handle heavy current loads at either ground or negative voltages. Key specifications and features include:

• Logic Functionality: The diode inputs (D, E, N, P) function as a NAND gate for negative inputs or a NOR gate for ground inputs. Additional gating sources can be integrated via the node or collector terminals.
• Operating Modes: The driver typically operates at frequencies up to 2 MHz with fast transition times (25–65 nsec). For longer transmission lines, grounding specific pins (H or S) increases transition times to 700–800 nsec to minimize signal ringing at frequencies up to 500 kHz.
• Output Options: Provides both "Direct" output for heavy current loads (20 mA) and "Resistor" output for driving 90-ohm coaxial cables.
• Constraints: The document specifies load limits, lead length restrictions (6 inches for the node terminal and 18 inches for the collector terminal), and power requirements (+10V and -15V).