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Texas Instruments TMUX1308QBQBRQ1
- Part No.:
- TMUX1308QBQBRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
TMUX1308QBQBRQ1.pdf
- Description:
- IC MUX 8:1 195OHM 16WQFN
- Quantity:
Unit Price:$0.782200
Ext Price:$0.782200
- Payment:
- Shipping:
Inventory:4,387
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In Stock : 4,387 PCS
| Qty. | Unit Price | Ext Price |
| 1+ | $0.782200 | $0.782200 |
| 3000+ | $0.558700 | $1676.100000 |
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Product Details
TMUX1308QBQBRQ1 - TI 8-Channel 1:8 Multiplexer/Demultiplexer
TMUX1308QBQBRQ1 is an 8-channel bidirectional 1:8 multiplexer/demultiplexer (1-of-8 switch) controlled via 3 parallel GPIO address pins (A0, A1, A2). It operates from 1.65V to 5.5V, features 4Ω typical ON-resistance, and 700MHz bandwidth. The QFN-20 package (3x3mm) is smaller than the QFN-24 SPI ver...
Product Introduction
TMUX1308QBQBRQ1 is an 8-channel bidirectional 1:8 multiplexer/demultiplexer (1-of-8 switch) controlled via 3 parallel GPIO address pins (A0, A1, A2). It operates from 1.65V to 5.5V, features 4Ω typical ON-resistance, and 700MHz bandwidth. The QFN-20 package (3x3mm) is smaller than the QFN-24 SPI version. It is ideal for routing USB SuperSpeed, PCIe, MIPI, and other high-speed signals in space-constrained automotive applications. AEC-Q100 Grade 1 qualified.
Expert Technical Insights
Parallel GPIO vs. SPI control for 1:8 switching:
- The TMUX1308QBQBRQ1 uses 3 address pins (A0, A1, A2) for direct channel selection - a binary code on these pins selects which of the 8 channels connects to the common input
- This is faster than SPI (no clock needed) and simpler to program (just write 3 GPIO values)
- The trade-off is 3 GPIO pins vs
- 3 SPI pins, but the timing is deterministic and glitch-free.
QFN-20 package advantages in camera modules:
- The 3x3mm QFN-20 package is ideal for automotive camera modules where PCB area is extremely limited
- The bottom pad provides excellent thermal dissipation, critical when the device handles high-speed MIPI CSI-2 signals that generate switching noise
- The 0.4mm pitch requires precise PCB manufacturing but enables the smallest footprint in the TMUX1308 family.
Key Benefits
Single chip replaces 8 discrete switches, 3x3mm package, smallest in TMUX1308 family.
Suitable for USB 2.0, PCIe Gen 1/2, and MIPI D-PHY high-speed routing.
Simple 3-pin binary address selection, no SPI driver required.
Automotive-qualified with -40°C to +125°C junction temperature range.
Detailed Specifications
| Parameter | Value | Conditions / Notes |
|---|---|---|
| Device Type | 8-Channel 1:8 Multiplexer/Demultiplexer | - |
| Manufacturer | Texas Instruments | USA |
| Configuration | 1:8 Multiplexer / 8:1 Demultiplexer | Bidirectional |
| Supply Voltage (VCC) | 1.65V to 5.5V | Wide voltage range |
| ON-Resistance (RON) | 4Ω (typical) | 25°C |
| Bandwidth | 700MHz (-3dB) | - |
| Control Interface | Parallel GPIO | 3 address pins select 1 of 8 channels |
| ESD Protection | 2kV HBM | - |
| Package | QFN-20 (3x3mm) | BQB suffix |
| Operating Temperature | -40°C to +125°C | Junction temp |
Note: For detailed electrical parameters, thermal management design, and EMI optimization guidelines, refer to the official TI datasheet. Specifications are subject to change without notice. Engineers should verify all parameters before final design.
Package Information
TMUX1308QBQBRQ1 uses a 20-pin QFN package with WPC (BQB suffix) featuring a 3x3mm body and 0.4mm pitch. The compact QFN package offers low parasitic capacitance and excellent high-frequency switching performance. It is the parallel GPIO control version of TMUX1308QPWRQ1, with identical electrical specs but smaller package and more direct MCU interface. AEC-Q100 Grade 1 qualified.
Pin Definition (QFN-20)
- COM_1 ~ COM_8: Common port pins (8 channels)
- A0, A1, A2: 3-bit address pins (GPIO control)
- EN: Enable pin (active high)
- VCC / GND: Power supply and ground
Alternative Parts
The following alternative parts are listed for reference. Before selecting an alternative, verify communication interface, supply voltage, security algorithm compatibility, and software API differences.
| Part Number | Brand | Type | Package | Key Feature |
|---|---|---|---|---|
| TMUX1308QPWRQ1 | TI | 8-Ch 1:8 Mux / SPI / 1.65V-5.5V / 700MHz | QFN-24 | SPI control version, larger QFN-24 package |
| TMUX4051DYYRQ1 | TI | 8-Ch 1:4 Mux / GPIO / 1.65V-5.5V / 500MHz | SOT-23-20 | 1:4 version, SOT-23-20 package |
| TMUX1308QBQBRQ1 | Verify datasheet before selection | Verify datasheet before selection | Verify datasheet before selection | Verify datasheet before selection |
Manufacturer Information
Texas Instruments (NASDAQ: TXN), headquartered in Dallas, Texas, is a global leader in analog and embedded semiconductors. TI's TMUX mux/demux family covers signal routing from low-speed GPIOs to USB 3.0 SuperSpeed. The TMUX1308QBQBRQ1 follows TI's automotive-quality flow with AEC-Q100 Grade 1 qualification and PPAP support.
Applications
Frequently Asked Questions
What is TMUX1308QBQBRQ1 used for?
TMUX1308QBQBRQ1 is used in electronic designs according to the function and limits described in the manufacturer datasheet.
Can TMUX1308QBQBRQ1 be replaced by another part?
Only after verifying package, pinout, electrical limits and software or circuit compatibility.
Where should the final parameters be checked?
Use the official manufacturer datasheet and latest ordering documentation before final design release.
Disclaimer
The technical specifications listed on this page are based on the official TI datasheet. We strive to ensure accuracy and completeness, but specifications are subject to change without notice. Engineers should verify all parameters before final design.
We guarantee all products are genuine factory originals with complete traceability.
Free technical consultation available before and after purchase.
This product page is for reference only.
TMUX1308QBQBRQ1 Specifications
- Specifications
- Attributes
- Property Value
- Manufacturer
- Texas Instruments
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Part Status:
- Active
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- 8:1
- On-State Resistance (Max):
- 195Ohm
- Channel-to-Channel Matching (ΔRon):
- 7Ohm
- Voltage - Supply, Single (V+):
- 1.62V ~ 5.5V
- Qualification:
- AEC-Q100
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 32ns, 40ns
- Number of Circuits:
- 1
- 3 dB Bandwidth:
- 500MHz
- Charge Injection:
- -6.5pC
- Grade:
- Automotive
- Channel Capacitance (CS(off), CD(off)):
- 2pF, 7pF
- Mounting Style:
- Surface Mount
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Current - Leakage (IS(off)) (Max):
- 1nA (Typ)
- Crosstalk:
- -90dB @ 1MHz
- Supplier Device Package:
- 16-WQFN (2.5x3.5)
TMUX1308QBQBRQ1 Relevant information
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