Overview
The SN74HC151D is an 8-line to 1-line data selector/multiplexer produced by Texas Instruments. This device provides full binary decoding to select one of eight data sources. The strobe (G) input must be at a low logic level to enable the inputs, while a high level at the strobe terminal forces the standard output (Y) low and the inverted output (W) high. This component is part of the HC family, known for its wide operating voltage range and low power consumption, making it versatile for various digital circuit applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage | 2 | 5 | 6 | V |
| VIH High-Level Input Voltage | 1.5 (VCC=2V), 3.15 (VCC=4.5V), 4.2 (VCC=6V) | V | ||
| VIL Low-Level Input Voltage | 0.5 (VCC=2V), 1.35 (VCC=4.5V), 1.8 (VCC=6V) | V | ||
| IOH Output Current (High) | -20 mA, -6 mA, -7.8 mA | mA | ||
| IOL Output Current (Low) | 20 μA, 6 mA, 7.8 mA | mA | ||
| ICC Quiescent Current | 8 μA (VCC=6V) | 160 μA | μA | |
| tpd Propagation Delay (A, B, or C to Y or W) | 94 ns (VCC=2V), 30 ns (VCC=4.5V), 25 ns (VCC=6V) | 250 ns (VCC=2V), 50 ns (VCC=4.5V), 43 ns (VCC=6V) | ns | |
| TJ Junction Temperature | 150 °C | °C | ||
| Tstg Storage Temperature | -65 °C | 150 °C | °C |
Key Features
- Wide operating voltage range of 2 V to 6 V
- Outputs can drive up to 10 LSTTL loads
- Low power consumption, with a maximum ICC of 80 μA
- Typical propagation delay (tpd) of 13 ns
- ±6-mA output drive at 5 V
- Low input current of 1 μA max
- Can function as Boolean-function generators, parallel-to-serial converters, and data source selectors
Applications
- Boolean-function generators
- Parallel-to-serial converters
- Data source selectors
- Digital multiplexing and demultiplexing in various electronic systems
- Embedded systems requiring low power and high-speed data selection
Q & A
- What is the primary function of the SN74HC151D?
The primary function of the SN74HC151D is to act as an 8-line to 1-line data selector/multiplexer, providing full binary decoding to select one of eight data sources.
- What is the operating voltage range of the SN74HC151D?
The operating voltage range of the SN74HC151D is from 2 V to 6 V.
- How much current can the outputs drive?
The outputs can drive up to 10 LSTTL loads.
- What is the typical propagation delay of the SN74HC151D?
The typical propagation delay (tpd) is 13 ns.
- What are some common applications of the SN74HC151D?
Common applications include Boolean-function generators, parallel-to-serial converters, and data source selectors.
- What is the maximum junction temperature for the SN74HC151D?
The maximum junction temperature is 150 °C.
- How does the strobe input affect the outputs?
A low logic level at the strobe (G) input enables the inputs, while a high level forces the standard output (Y) low and the inverted output (W) high.
- What is the maximum storage temperature for the SN74HC151D?
The maximum storage temperature is 150 °C, and the minimum is -65 °C.
- What are the package options available for the SN74HC151D?
Package options include SOIC (D), PDIP (N), SOP (NS), and TSSOP (PW).
- Is the SN74HC151D suitable for low-power applications?
Yes, it is suitable for low-power applications with a maximum ICC of 80 μA.
