Overview
The SN75161B, produced by Texas Instruments, is a monolithic, high-speed, low-power Schottky device designed to meet the requirements of IEEE Standard 488-1978 (GPIB). This eight-channel, general-purpose interface bus transceiver is part of a family that includes the SN75162B, and it is specifically designed for single-controller instrumentation systems. When combined with the SN75160B octal bus transceiver, the SN75161B provides the complete 16-wire interface for the IEEE-488 bus, facilitating bus-management and data-transfer signals between operating units of the system.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | PDIP (N), 20 pins |
| Operating Temperature Range | 0°C to 70°C |
| Supply Voltage | 4.75V to 5.25VDC |
| Number of Channels | 8-channel bidirectional transceivers |
| Power Dissipation | 72 mW Max Per Channel |
| Propagation Time | 22 ns Max |
| Input Impedance | High-Impedance pnp Inputs |
| Receiver Hysteresis | 650 mV Typ |
| Bus-Terminating Resistors | Provided on Driver Outputs |
| Sink Current Capability | Up to 48 mA |
Key Features
- Meets IEEE Standard 488-1978 (GPIB)
- 8-Channel Bidirectional Transceivers
- Power-Up/Power-Down Protection (Glitch Free)
- Designed to Implement Control Bus Interface
- High-Speed, Low-Power Schottky Circuitry
- Low Power Dissipation
- Fast Propagation Times
- High-Impedance pnp Inputs
- Receiver Hysteresis for increased noise immunity
- Bus-Terminating Resistors Provided on Driver Outputs
- No Loading of Bus When Device Is Powered Down (VCC = 0)
Applications
The SN75161B is primarily used in instrumentation systems that require a GPIB interface. It is suitable for single-controller systems and can be combined with the SN75160B to provide a complete 16-wire interface for the IEEE-488 bus. This makes it ideal for applications in test and measurement equipment, data acquisition systems, and other instrumentation where reliable and high-speed data transfer is necessary.
Q & A
- What is the primary function of the SN75161B?
The SN75161B is an eight-channel, general-purpose interface bus transceiver designed to meet the requirements of IEEE Standard 488-1978 (GPIB), facilitating bus-management and data-transfer signals between operating units of an instrumentation system.
- What is the operating temperature range of the SN75161B?
The SN75161B operates within a temperature range of 0°C to 70°C.
- What is the supply voltage range for the SN75161B?
The supply voltage range for the SN75161B is 4.75V to 5.25VDC.
- How many channels does the SN75161B have?
The SN75161B has 8 bidirectional transceiver channels.
- What is the maximum power dissipation per channel for the SN75161B?
The maximum power dissipation per channel is 72 mW.
- What is the propagation time for the SN75161B?
The propagation time is 22 ns maximum.
- Does the SN75161B have power-up/power-down protection?
Yes, the SN75161B features power-up/power-down protection to ensure glitch-free operation during power transitions.
- What type of inputs does the SN75161B have?
The SN75161B features high-impedance pnp transistor inputs.
- Does the SN75161B have bus-terminating resistors?
Yes, the SN75161B has active bus-terminating resistor circuits on the driver outputs.
- Can the SN75161B handle high sink currents?
Yes, the drivers are designed to handle loads up to 48 mA of sink current.
