Overview
The SN74HC365N is a hex buffer and line driver integrated circuit produced by Texas Instruments. This device is designed to enhance the performance and density of various digital systems, particularly in applications requiring 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The SN74HC365N contains six independent non-inverting buffers with 3-state outputs, which can be controlled by dual-gated output-enable (OE1 and OE2) inputs. When both OE1 and OE2 are low, the device passes non-inverted data from the A inputs to the Y outputs. If either or both output-enable terminals are high, the outputs enter a high-impedance state.
Key Specifications
| Parameter | Description | Min | Max | |
|---|---|---|---|---|
| VCC (Supply Voltage) | 2 V | 5 V | 6 V | |
| VIH (High-level Input Voltage) | VCC = 2 V | 1.5 V | 1.5 V | |
| VIH (High-level Input Voltage) | VCC = 4.5 V | 3.15 V | 3.15 V | |
| VIH (High-level Input Voltage) | VCC = 6 V | 4.2 V | 4.2 V | |
| VIL (Low-level Input Voltage) | VCC = 2 V | 0.5 V | 0.5 V | |
| VIL (Low-level Input Voltage) | VCC = 4.5 V | 1.35 V | 1.35 V | |
| VIL (Low-level Input Voltage) | VCC = 6 V | 1.8 V | 1.8 V | |
| VOH (Output High Voltage) | IOH = -20 μA, VCC = 2 V | 1.9 V | 1.998 V | |
| VOH (Output High Voltage) | IOH = -20 μA, VCC = 4.5 V | 4.4 V | 4.499 V | |
| VOH (Output High Voltage) | IOH = -20 μA, VCC = 6 V | 5.9 V | 5.999 V | |
| VOL (Output Low Voltage) | IOL = 20 μA, VCC = 2 V | 0.002 V | 0.1 V | |
| VOL (Output Low Voltage) | IOL = 20 μA, VCC = 4.5 V | 0.001 V | 0.1 V | |
| VOL (Output Low Voltage) | IOL = 20 μA, VCC = 6 V | 0.001 V | 0.1 V | |
| ICC (Quiescent Current) | VI = VCC or 0, IO = 0, VCC = 6 V | 8 μA | 160 μA | |
| tpd (Propagation Delay) | A to Y, VCC = 2 V, TA = 25°C | 50 ns | 95 ns | |
| ten (Enable Time) | OE to Y, VCC = 2 V, TA = 25°C | 100 ns | 190 ns | |
| tdis (Disable Time) | OE to Y, VCC = 2 V, TA = 25°C | 50 ns | 175 ns | |
| tt (Transition Time) | Any, VCC = 2 V, TA = 25°C | 28 ns | 60 ns | |
| TA (Operating Free-Air Temperature) | -55°C | 125°C | ||
| Package Type | PDIP-16 |
Key Features
- Wide Operating Voltage Range: 2 V to 6 V.
- High-Current 3-State Outputs: Capable of driving bus lines, buffer-memory address registers, or up to 15 LSTTL loads.
- True Outputs: Non-inverting buffers.
- Low Power Consumption: Maximum quiescent current (ICC) of 80 μA.
- Fast Switching Times: Typical propagation delay (tpd) of 10 ns.
- High Output Drive: ±6-mA output drive at 5V.
- Low Input Current: Maximum input current of 1 μA.
Applications
- 3-State Memory Address Drivers: Ideal for driving memory address lines in digital systems.
- Clock Drivers: Suitable for distributing clock signals across the system.
- Bus-Oriented Receivers and Transmitters: Used in bus communication systems to buffer and drive signals.
- Digital Logic Circuits: Can be used in various digital logic circuits requiring non-inverting buffers with 3-state outputs.
Q & A
- What is the operating voltage range of the SN74HC365N?
The operating voltage range is from 2 V to 6 V.
- How many independent buffers does the SN74HC365N contain?
The device contains six independent non-inverting buffers.
- What is the maximum quiescent current (ICC) of the SN74HC365N?
The maximum quiescent current is 80 μA.
- What is the typical propagation delay (tpd) of the SN74HC365N?
The typical propagation delay is 10 ns.
- How are the outputs controlled in the SN74HC365N?
The outputs are controlled by dual-gated output-enable (OE1 and OE2) inputs.
- What happens to the outputs when either OE1 or OE2 is high?
The outputs enter a high-impedance state.
- What is the maximum output drive current at 5V?
The maximum output drive current is ±6 mA.
- What is the package type of the SN74HC365N?
The package type is PDIP-16.
- What is the operating free-air temperature range of the SN74HC365N?
The operating free-air temperature range is from -55°C to 125°C.
- What are some common applications of the SN74HC365N?
Common applications include 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters.
