TMUX121

Name: TMUX121
Brand: TI
SKU: TMUX121
Price: 0.238 USD

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2-pF, 3.3-V, 2:1 (SPDT), 2-channel, switch with 1.8-V compatible logic

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Data sheet

document-pdfAcrobat TMUX121 Low-Capacitance, 2-Channel, 2:1 Switch with Power-Off Isolationand 1.8-V Logic datasheet PDF | HTML

TMUX121

ACTIVE

Data sheet

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Product details

Configuration

2:1 SPDT

Number of channels

2

Power supply voltage - single (V)

3.3

Protocols

Analog, I2C, I3C, LVDS, UART

Ron (typ) (Ω)

3

CON (typ) (pF)

1.7

ON-state leakage current (max) (µA)

2

Supply current (typ) (µA)

11

Bandwidth (MHz)

3300

Operating temperature range (°C)

-40 to 125

Features

1.8-V compatible control inputs, Powered-off protection

Input/output continuous current (max) (mA)

100

Rating

Catalog

Supply voltage (max) (V)

3.6

Configuration

2:1 SPDT

Number of channels

2

Power supply voltage - single (V)

3.3

Protocols

Analog, I2C, I3C, LVDS, UART

Ron (typ) (Ω)

3

CON (typ) (pF)

1.7

ON-state leakage current (max) (µA)

2

Supply current (typ) (µA)

11

Bandwidth (MHz)

3300

Operating temperature range (°C)

-40 to 125

Features

1.8-V compatible control inputs, Powered-off protection

Input/output continuous current (max) (mA)

100

Rating

Catalog

Supply voltage (max) (V)

3.6

UQFN (NKG)

10

2.52 mm² 1.8 x 1.4

Compatible with high-speed I 3C signals
High performance switch characteristics:
- Bandwidth (–3 dB): 3.0 GHz
- R ON (typical): 3 Ω
- C ON (typical): 1.7 pF
- T PD (typical): 60 ps
- T SWEK (typical): 2 ps
Low current consumption: 12 µA (typical)
Special features:
- I POFF protection prevents current leakage in Powered-Down state
- 1.8 V and 3.3 V compatible control inputs (SEL, EN)
3.3 V supply voltage
Industrial temperature range: –40 to 125°C
Compact 10-pin 1.4 mm × 1.8 mm, UQFN package

Compatible with high-speed I 3C signals
High performance switch characteristics:
- Bandwidth (–3 dB): 3.0 GHz
- R ON (typical): 3 Ω
- C ON (typical): 1.7 pF
- T PD (typical): 60 ps
- T SWEK (typical): 2 ps
Low current consumption: 12 µA (typical)
Special features:
- I POFF protection prevents current leakage in Powered-Down state
- 1.8 V and 3.3 V compatible control inputs (SEL, EN)
3.3 V supply voltage
Industrial temperature range: –40 to 125°C
Compact 10-pin 1.4 mm × 1.8 mm, UQFN package

The TMUX121 is a high performance bidirectional 2-channel, 2:1 (SPDT) switch that supports both differential and single ended signals. The TMUX121 is an analog passive switch which features power-off protection forcing all I/O pins to be in high-impedance mode when power is not present on the V DD pin. The select and enable pins of the TMUX121 compatible with 1.8 V and 3.3 V control voltage, allowing them to be directly interfaced with the General purpose I/O (GPIO) from low voltage processors. This, along with the low on-resistance and low on capacitance of the device, make the TMUX121 an excellent choice for supporting switching a wide range of analog signals and digital communication protocol standards, including high-speed standards such as I 3C.

The TMUX121 comes in a small 10-pin UQFN package with only 1.8 mm × 1.4 mm in size, which makes it useful when PCB area is limited.

The TMUX121 is a high performance bidirectional 2-channel, 2:1 (SPDT) switch that supports both differential and single ended signals. The TMUX121 is an analog passive switch which features power-off protection forcing all I/O pins to be in high-impedance mode when power is not present on the V DD pin. The select and enable pins of the TMUX121 compatible with 1.8 V and 3.3 V control voltage, allowing them to be directly interfaced with the General purpose I/O (GPIO) from low voltage processors. This, along with the low on-resistance and low on capacitance of the device, make the TMUX121 an excellent choice for supporting switching a wide range of analog signals and digital communication protocol standards, including high-speed standards such as I 3C.

The TMUX121 comes in a small 10-pin UQFN package with only 1.8 mm × 1.4 mm in size, which makes it useful when PCB area is limited.

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	Type	Title		Date
*	Data sheet	TMUX121 Low-Capacitance, 2-Channel, 2:1 Switch with Power-Off Isolationand 1.8-V Logic datasheet	PDF \| HTML	25 Aug 2023
	Product overview	How to Support Two Controllers on the I2C Bus, Avoid Bus Contention, and Prevent Controller Failures	PDF \| HTML	27 Nov 2024
	Application note	Designing with Multiple Multiplexers in Series: A Guide to Cascading Multiplexers	PDF \| HTML	31 Jan 2024
	Application brief	Important Multiplexer Characteristics for I3C Applications	PDF \| HTML	27 Jul 2023

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