Overview
The 74HC4514PW112 is a 4-to-16 line decoder/demultiplexer integrated circuit produced by Nexperia USA Inc. This device is part of the 74HC series, known for its high-speed CMOS logic. It features four binary weighted address inputs (A0 to A3), a latch enable input (LE), an enable input (E), and 16 outputs (Q0 to Q15). The 74HC4514 is designed to decode four binary inputs into one of sixteen mutually exclusive outputs, making it versatile for various digital circuit applications.
Key Specifications
| Parameter | Conditions | Min | Typ | Max |
|---|---|---|---|---|
| VCC (Supply Voltage) | - | 2.0 V | - | 6.0 V |
| VIH (HIGH-level input voltage) | VCC = 6.0 V | 4.2 V | 3.2 V | 4.2 V |
| VIL (LOW-level input voltage) | VCC = 6.0 V | - | 1.8 V | 2.8 V |
| VOL (LOW-level output voltage) | IO = 4.0 mA | - | 0.15 V | 0.4 V |
| II (Input leakage current) | VI = VCC or GND; VCC = 5.5 V | - | ±0.1 μA | ±1.0 μA |
| ICC (Supply current) | VI = VCC or GND; VCC = 5.5 V; IO = 0 A | - | 8.0 μA | 160 μA |
| tpd (Propagation delay) | VCC = 5 V; CL = 15 pF | - | 23 ns | - |
Key Features
- 4-to-16 Line Decoder/Demultiplexer: Decodes four binary inputs into one of sixteen mutually exclusive outputs.
- Input Latches: The device includes input latches to store the last data present at the address inputs when the latch enable input (LE) goes LOW.
- Enable Input: The enable input (E) controls the output state; when E is LOW, the selected output is HIGH, and when E is HIGH, all outputs are LOW.
- High-Speed CMOS Logic: Part of the 74HC series, known for its high-speed and low power consumption.
- Wide Operating Voltage Range: Operates from 2.0 V to 6.0 V.
- Clamp Diodes on Inputs: Allows the use of current limiting resistors to interface inputs to VCC.
Applications
- Digital Circuit Design: Suitable for decoding and demultiplexing in digital circuits.
- Automotive Electronics: Can be used in automotive systems due to its robust and reliable performance.
- Industrial Control Systems: Used in industrial control systems for decoding and controlling multiple outputs.
- Consumer Electronics: Found in various consumer electronic devices requiring digital decoding and demultiplexing functions.
Q & A
- What is the primary function of the 74HC4514PW112?
The primary function is to decode four binary inputs into one of sixteen mutually exclusive outputs. - What is the operating voltage range of the 74HC4514PW112?
The device operates from 2.0 V to 6.0 V. - What is the purpose of the latch enable input (LE) in the 74HC4514PW112?
The latch enable input (LE) stores the last data present at the address inputs when it goes LOW. - How does the enable input (E) affect the outputs of the 74HC4514PW112?
When E is LOW, the selected output is HIGH, and when E is HIGH, all outputs are LOW. - What type of logic does the 74HC4514PW112 use?
The device uses high-speed CMOS logic. - What are the typical propagation delays for the 74HC4514PW112?
The typical propagation delay is around 23 ns for VCC = 5 V and CL = 15 pF. - Can the 74HC4514PW112 be used in automotive applications?
Yes, it can be used in automotive systems due to its robust and reliable performance. - What is the maximum output current of the 74HC4514PW112?
The maximum output current is 5.2 mA for both HIGH and LOW states. - Does the 74HC4514PW112 have input protection?
Yes, it includes clamp diodes on the inputs to protect against voltage spikes. - What is the package type of the 74HC4514PW112?
The package type is TSSOP16 (Thin Shrink Small Outline Package with 16 pins).
