Overview
The 74HC4514PW,112 from Nexperia USA Inc. is a 4-to-16 line decoder/demultiplexer integrated circuit with input latches. This device features four binary weighted address inputs (A0 to A3), a latch enable input (LE), an enable input (E), and 16 outputs (Q0 to Q15). It is designed to decode 4 binary-coded inputs into 16 mutually-exclusive outputs, making it versatile for various digital logic applications. The device operates within a wide supply voltage range of 2.0 V to 6.0 V, ensuring compatibility with different system designs. It also includes input clamp diodes, which allow the use of current limiting resistors to interface inputs to voltages in excess of VCC.
Key Specifications
| Type Number | VCC (V) | Logic Switching Levels | Output Drive Capability (mA) | tpd (ns) | Power Dissipation Considerations | Tamb (°C) | Package Name |
|---|---|---|---|---|---|---|---|
| 74HC4514PW | 2.0 - 6.0 | CMOS | ± 5.2 | 27 | Low | -40 to +125 | TSSOP24 (SOT355-1) |
Key Features
- Wide Supply Voltage Range: Operates from 2.0 V to 6.0 V.
- CMOS Low Power Dissipation: Low power consumption, making it energy-efficient.
- High Noise Immunity: Ensures reliable operation in noisy environments.
- Input Levels: Supports CMOS logic levels for the 74HC4514 and TTL logic levels for the 74HCT4514.
- 16-Line Demultiplexing Capability: Decodes 4 binary-coded inputs into 16 mutually-exclusive outputs.
- Latch-Up Performance: Exceeds 100 mA per JESD 78 Class II Level B.
- ESD Protection: Complies with ANSI/ESDA/JEDEC JS-001 class 2 (exceeds 2000 V) and JS-002 class C3 (exceeds 1000 V)).
Applications
- Digital Multiplexing: Used in applications requiring the selection of one of several data lines.
- Address Decoding: Suitable for decoding binary addresses in memory and I/O circuits).
- Hexadecimal/BCD Decoding: Can be used to decode hexadecimal or BCD codes into their respective outputs).
- Automotive and Industrial Systems: Finds applications in various industries including automotive, industrial, power, computing, and consumer electronics).
Q & A
- What is the primary function of the 74HC4514PW?
The primary function is to act as a 4-to-16 line decoder/demultiplexer with input latches).
- What is the supply voltage range for the 74HC4514PW?
The supply voltage range is from 2.0 V to 6.0 V).
- What logic levels does the 74HC4514 support?
The 74HC4514 supports CMOS logic levels, while the 74HCT4514 supports TTL logic levels).
- How many outputs does the 74HC4514PW have?
The device has 16 outputs (Q0 to Q15)).
- What is the purpose of the latch enable input (LE) and enable input (E)?
The latch enable input (LE) stores the last data present at the address inputs when it goes LOW, and the enable input (E) controls the output state, setting all outputs LOW when HIGH).
- What is the package type for the 74HC4514PW,112?
The package type is TSSOP24 (SOT355-1)).
- What are the operating temperature ranges for the 74HC4514PW?
The device operates from -40 °C to +125 °C).
- Does the 74HC4514PW have ESD protection?
Yes, it complies with ANSI/ESDA/JEDEC JS-001 class 2 (exceeds 2000 V) and JS-002 class C3 (exceeds 1000 V)).
- What are some common applications of the 74HC4514PW?
Common applications include digital multiplexing, address decoding, and hexadecimal/BCD decoding).
- Is the 74HC4514PW RoHS compliant?
Yes, the 74HC4514PW is RoHS compliant).
