Overview
The TMUX1574PWR is a low-capacitance, 2:1 (SPDT) 4-channel analog switch manufactured by Texas Instruments. This complementary metal-oxide semiconductor (CMOS) switch is designed to provide a wide range of functionalities in various applications. It features a 2:1 SPDT switch configuration with four channels, making it versatile for signal routing and multiplexing tasks. The device operates over a broad supply voltage range of 1.5 V to 5.5 V, allowing it to be used in diverse environments from servers and communication equipment to industrial settings.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Power Supply Voltage (VDD) | 1.5 | 5.5 | V | |
| Active Supply Current (IDD) | 40 | 68 | μA | |
| Supply Current when Disabled (IDD_STANDBY) | 7.5 | 15 | μA | |
| On-Resistance (RON) | 8 | Ω | ||
| Transition Time from Control Input (tTRAN) | 160 | 350 | ns | |
| Device Turn On Time from Enable Pin (tON(EN)) | ns | |||
| Internal Pull-Down Resistor on Logic Pins (RPD) | 6 | MΩ | ||
| Logic Input Capacitance (CI) | 3 | pF |
Key Features
- Bidirectional Signal Path: Supports bidirectional analog and digital signals on the source and drain pins.
- Powered-Off Protection: Provides isolation up to 3.6 V on the signal path when the supply voltage is removed.
- Fail-Safe Logic: Allows voltages on the logic control pins to be applied before the supply pin, protecting the device from potential damage.
- Integrated Pull-Down Resistor: Reduces system size and cost by eliminating the need for external components.
- Wide Operating Supply Voltage: Operates from 1.5 V to 5.5 V, making it suitable for a broad range of applications.
- 1.8 V Logic Compatible Thresholds: Ensures compatibility with both TTL and CMOS logic.
Applications
- Flash memory sharing
- JTAG multiplexing
- SPI multiplexing
- eMMC multiplexing
- Servers
- Data center switches & routers
- Wireless infrastructure
- PC & notebooks
- Building automation
- Grid infrastructure
- ePOS
- Appliances
Q & A
- What is the TMUX1574PWR? The TMUX1574PWR is a low-capacitance, 2:1 (SPDT) 4-channel analog switch manufactured by Texas Instruments.
- What is the operating supply voltage range of the TMUX1574PWR? The device operates over a supply voltage range of 1.5 V to 5.5 V.
- What is the purpose of the powered-off protection feature? The powered-off protection feature provides isolation up to 3.6 V on the signal path when the supply voltage is removed, preventing potential damage to the system.
- Does the TMUX1574PWR support bidirectional signals? Yes, it supports bidirectional analog and digital signals on the source and drain pins.
- What is the function of the fail-safe logic circuitry? The fail-safe logic circuitry allows voltages on the logic control pins to be applied before the supply pin, protecting the device from potential damage.
- What is the benefit of the integrated pull-down resistor on the logic pins? The integrated pull-down resistor reduces system size and cost by eliminating the need for external components.
- Is the TMUX1574PWR compatible with both TTL and CMOS logic? Yes, it has 1.8 V logic compatible thresholds, ensuring compatibility with both TTL and CMOS logic.
- What are some common applications of the TMUX1574PWR? Common applications include flash memory sharing, JTAG multiplexing, SPI multiplexing, eMMC multiplexing, servers, data center switches & routers, wireless infrastructure, PC & notebooks, building automation, grid infrastructure, ePOS, and appliances.
- What is the typical active supply current of the TMUX1574PWR? The typical active supply current is 40 μA.
- What is the maximum on-resistance of the TMUX1574PWR? The maximum on-resistance is 8 Ω.
