Specifications
| Type | Description |
|---|---|
| Part Number | SN74CBTLV3257_Mux |
| Manufacturer | Texas Instruments |
| Product Type | Multiplexer |
| Category | Logic |
| Package/Case | SSOP-16 4.90 mm x 3.90 mm; TSSOP-16 5.00 mm x 4.40 mm; TVSOP-16 3.60 mm x 4.40 mm; SOIC-16 9.90 mm x 3.91 mm; VQFN-16 4.00 mm x 3.50 mm; UQFN-16 2.60 mm x 1.80 mm |
| Device Function | Low-voltage 4-bit 1-of-2 FET multiplexer/demultiplexer |
| Switch On-State Resistance Feature | 5 ohm switch connection between two ports |
| Data I/O Switching Range | Rail-to-rail switching on data I/O ports |
| Partial-Power-Down Support | Ioff supports partial-power-down mode operation |
| Output Enable Behavior | FET multiplexers/demultiplexers disabled when OE input is high |
| Select Input Function | S input controls data flow |
| Package Option | SN74CBTLV3257DBQ, SSOP-16, 4.90 mm x 3.90 mm |
| Package Option | SN74CBTLV3257PW, TSSOP-16, 5.00 mm x 4.40 mm |
| Package Option | SN74CBTLV3257DGV, TVSOP-16, 3.60 mm x 4.40 mm |
| Package Option | SN74CBTLV3257D, SOIC-16, 9.90 mm x 3.91 mm |
| Package Option | SN74CBTLV3257RGY, VQFN-16, 4.00 mm x 3.50 mm |
| Package Option | SN74CBTLV3257RSV, UQFN-16, 2.60 mm x 1.80 mm |
| Supply Voltage Absolute Maximum | -0.5 V to 4.6 V |
| Input Voltage Absolute Maximum | -0.5 V to 4.6 V; negative voltage rating may be exceeded if clamp-current rating is observed |
| Continuous Channel Current | 128 mA max |
| Input Clamp Current | -50 mA at VI/O < 0 |
| Junction Temperature Absolute Maximum | 150 °C max |
| Storage Temperature Range | -65 °C to 150 °C |
| ESD Rating | 2000 V, human-body model, per ANSI/ESDA/JEDEC JS-001 |
| Recommended Supply Voltage | 2.3 V to 3.6 V |
| High-Level Control Input Voltage | 1.7 V min at VCC = 2.3 V to 2.7 V |
| High-Level Control Input Voltage | 2.0 V min at VCC = 2.7 V to 3.6 V |
| Low-Level Control Input Voltage | 0.7 V max at VCC = 2.3 V to 2.7 V |
| Low-Level Control Input Voltage | 0.8 V max at VCC = 2.7 V to 3.6 V |
| Operating Free-Air Temperature Range | -40 °C to 85 °C |
| Junction-to-Ambient Thermal Resistance | 86.7 °C/W, 112.4 °C/W, 123.1 °C/W, 110.9 °C/W, 43.8 °C/W for D, DBQ, DGV, PW, RGY packages respectively |
| Input Leakage Current | ±1 µA max at VCC = 3.6 V, VI = VCC or GND |
| Power-Off Leakage Current | 15 µA max at VCC = 0 V, VI or VO = 0 V to 3.6 V |
| Supply Current | 10 µA max at VCC = 3.6 V, ICC = 0, VO = VI or GND |
| Delta Supply Current | 300 µA max for control inputs at VCC = 3.6 V, one input at 3 V, other inputs at VCC or GND |
| Input Capacitance | 3 pF typ at VI = 3 V or 0 V |
| I/O Off Capacitance | 10.5 pF typ at A port; 5.5 pF typ at B port, VO = 3 V or 0 V, OE = VCC |
| On-State Resistance | 5 ohm typ, 8 ohm max at VCC = 2.3 V, VI = 0 V, II = 64 mA or 24 mA; typ at VCC = 2.5 V |
| On-State Resistance | 27 ohm typ, 40 ohm max at VCC = 2.3 V, VI = 1.7 V, II = 15 mA; typ at VCC = 2.5 V |
| On-State Resistance | 5 ohm typ, 7 ohm max at VCC = 3 V, VI = 0 V, II = 64 mA or 24 mA |
| On-State Resistance | 10 ohm typ, 15 ohm max at VCC = 3 V, VI = 2.4 V, II = 15 mA |
| Propagation Delay | 0.15 ns max at VCC = 2.5 V ±0.2 V; 0.25 ns max at VCC = 3.3 V ±0.3 V, from A or B input to B or A output |
| Enable Time | 1.8 ns min, 6.1 ns max at VCC = 2.5 V ±0.2 V; 1.8 ns min, 5.3 ns max at VCC = 3.3 V ±0.3 V, from S input to A or B output |
| Disable Time | 1 ns min, 4.8 ns max at VCC = 2.5 V ±0.2 V; 1 ns min, 4.5 ns max at VCC = 3.3 V ±0.3 V, from S input to A or B output |
| Enable Time | 1.9 ns min, 5.6 ns max at VCC = 2.5 V ±0.2 V; 2 ns min, 5 ns max at VCC = 3.3 V ±0.3 V, from OE input to A or B output |
| Disable Time | 1 ns min, 5.5 ns max at VCC = 2.5 V ±0.2 V; 1.6 ns min, 5.5 ns max at VCC = 3.3 V ±0.3 V, from OE input to A or B output |
| Datasheet Status | request_only |
Product Overview
SN74CBTLV3257_Mux is a Texas Instruments low-voltage 4-bit 1-of-2 FET multiplexer/demultiplexer for Interface applications requiring controlled data-path switching. The S input controls data flow, while the OE input is active low; when OE is high, the FET multiplexers/demultiplexers are disabled.
The device supports rail-to-rail switching on the data I/O ports and includes Ioff support for partial-power-down mode operation. Recommended supply voltage is 2.3 V to 3.6 V, with operation specified across a -40 °C to 85 °C free-air temperature range. Electrical data includes input leakage of ±1 µA max, supply current of 10 µA max, and power-off leakage of 15 µA max under stated conditions.
Package options cover SN74CBTLV3257DBQ in SSOP-16, SN74CBTLV3257PW in TSSOP-16, SN74CBTLV3257DGV in TVSOP-16, SN74CBTLV3257D in SOIC-16, SN74CBTLV3257RGY in VQFN-16, and SN74CBTLV3257RSV in UQFN-16. Timing data includes A/B path propagation delay up to 0.15 ns at 2.5 V ±0.2 V and up to 0.25 ns at 3.3 V ±0.3 V.
Key Features
- Low-voltage 4-bit 1-of-2 FET mux/demux function
- Rail-to-rail switching on data I/O ports
- 5 ohm switch connection between two ports
- Ioff supports partial-power-down mode operation
- Active-low OE disables switches when high
- S input controls data-flow selection
- 2.3 V to 3.6 V recommended supply range
- -40 °C to 85 °C operating free-air temperature
- A/B propagation delay to 0.25 ns max
- Multiple 16-pin SSOP, TSSOP, TVSOP, SOIC, VQFN, UQFN packages
Typical Applications
- Low-voltage data-path multiplexing
- Four-bit signal demultiplexing
- Rail-to-rail data I/O switching
- Partial-power-down interface designs
- OE-controlled bus isolation
- S-input controlled signal routing
Procurement Notes
When requesting a quote for SN74CBTLV3257_Mux, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For MCU, processor and logic IC sourcing, package, operating voltage, temperature grade, speed or frequency grade, firmware or mask version, lifecycle status and programming requirements should be checked before approval.
FAQ
What type of device is SN74CBTLV3257_Mux?
SN74CBTLV3257_Mux is a Texas Instruments low-voltage 4-bit 1-of-2 FET multiplexer/demultiplexer in the Interface category. Its S input controls data flow, and its active-low OE input disables the FET switches when high.
What supply range is recommended for this part?
The recommended supply voltage range is 2.3 V to 3.6 V. Absolute maximum supply voltage is specified from -0.5 V to 4.6 V, and operation is specified over a -40 °C to 85 °C free-air temperature range.
Which package options are listed for SN74CBTLV3257_Mux?
Listed package options include SSOP-16, TSSOP-16, TVSOP-16, SOIC-16, VQFN-16, and UQFN-16. The associated ordering options include SN74CBTLV3257DBQ, SN74CBTLV3257PW, SN74CBTLV3257DGV, SN74CBTLV3257D, SN74CBTLV3257RGY, and SN74CBTLV3257RSV.
What timing parameters are specified for the signal path?
Propagation delay from A or B input to B or A output is specified as 0.15 ns max at 2.5 V ±0.2 V and 0.25 ns max at 3.3 V ±0.3 V. Enable and disable timing is specified from both S and OE inputs.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.