Overview
The CD74HC4051QPWRCT is a high-speed CMOS logic analog multiplexer and demultiplexer produced by Texas Instruments. This device utilizes silicon gate CMOS technology to achieve operating speeds similar to LSTTL with the low-power consumption of standard CMOS integrated circuits. It is designed to control analog voltages that may vary across the voltage supply range, making it a versatile component for various applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage Range | 2 | 6 | V | |
| VCC - VEE Supply Voltage Range | 2 | 10 | V | |
| VEE Supply Voltage Range | 0 | -6 | V | |
| Operating Temperature Range | -55 | 125 | °C | |
| Input High Voltage (VIH) | 2 | V | ||
| Input Low Voltage (VIL) | 0.8 | V | ||
| ON Resistance (R_ON) | 70 | Ω (VCC - VEE = 4.5V) | ||
| Propagation Delay (tPHL, tPLH) | 12 | 18 | ns (TA = 25°C, VCC = 4.5V) | |
| Switch Turn-Off Delay (tPHZ, tPLZ) | 45 | 56 | ns (TA = 25°C, VCC = 4.5V) |
Key Features
- Qualified for automotive applications
- Wide analog input voltage range: ±5V maximum
- Low ON-resistance: 70Ω typical (VCC – VEE = 4.5V), 40Ω typical (VCC – VEE = 9V)
- Low crosstalk between switches
- Fast switching and propagation speeds
- Break-before-make switching
- Wide operating temperature range: –55°C to +125°C
- Operation control voltage: 2V to 6V for HC types, 4.5V to 5.5V for HCT types
- Switch voltage: 0V to 10V
- Direct LSTTL input logic compatibility and CMOS input compatibility
Applications
The CD74HC4051QPWRCT is suitable for a variety of applications, including:
- Automotive systems due to its qualification for automotive applications
- Analog signal routing and switching in industrial and consumer electronics
- Polling keypads in conjunction with microcontrollers
- General-purpose analog multiplexing and demultiplexing in various electronic systems
Q & A
- What is the CD74HC4051QPWRCT?
The CD74HC4051QPWRCT is a high-speed CMOS logic analog multiplexer and demultiplexer produced by Texas Instruments.
- What is the operating temperature range of the CD74HC4051QPWRCT?
The operating temperature range is –55°C to +125°C.
- What is the typical ON-resistance of the CD74HC4051QPWRCT?
The typical ON-resistance is 70Ω when VCC – VEE = 4.5V and 40Ω when VCC – VEE = 9V.
- What is the propagation delay of the CD74HC4051QPWRCT?
The propagation delay (tPHL, tPLH) is typically 12ns at 25°C with VCC = 4.5V.
- Is the CD74HC4051QPWRCT qualified for automotive applications?
- What is the input voltage range for the CD74HC4051QPWRCT?
The input voltage range is ±5V maximum.
- What is the switch voltage range for the CD74HC4051QPWRCT?
The switch voltage range is 0V to 10V.
- Does the CD74HC4051QPWRCT support LSTTL and CMOS input logic compatibility?
- What is the typical power dissipation capacitance of the CD74HC4051QPWRCT?
The typical power dissipation capacitance (Cpd) is 50 pF.
- Can the CD74HC4051QPWRCT be used in keypad polling applications?
