Specifications
| Type | Description |
|---|---|
| Part Number | SN74HC151 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Component Type | Other |
| Package Case | SOIC-16 9.90 mm x 3.90 mm; PDIP-16 19.31 mm x 6.35 mm; SO-16 6.20 mm x 5.30 mm; TSSOP-16 5.00 mm x 4.40 mm |
| Function | 8-line to 1-line data selector/multiplexer; full binary decoding selects one of eight data sources |
| Supply Voltage Range | 2 V to 6 V; recommended operating conditions |
| Nominal Supply Voltage | 5 V; recommended operating conditions |
| Operating Free-Air Temperature | -40°C to 85°C; SN74HC151 |
| High-Level Input Voltage at VCC = 2 V | min 1.5 V |
| High-Level Input Voltage at VCC = 4.5 V | min 3.15 V |
| High-Level Input Voltage at VCC = 6 V | min 4.2 V |
| Low-Level Input Voltage at VCC = 2 V | max 0.5 V |
| Low-Level Input Voltage at VCC = 4.5 V | max 1.35 V |
| Low-Level Input Voltage at VCC = 6 V | max 1.8 V |
| Input Voltage Range | 0 V to VCC; recommended operating conditions |
| Output Voltage Range | 0 V to VCC; recommended operating conditions |
| Input Transition Rise/Fall Time at VCC = 2 V | max 1000 ns |
| Input Transition Rise/Fall Time at VCC = 4.5 V | max 500 ns |
| Input Transition Rise/Fall Time at VCC = 6 V | max 400 ns |
| Absolute Maximum Supply Voltage | -0.5 V to 7 V; over operating free-air temperature range |
| Input Clamp Current | +/-20 mA; VI < 0 or VI > VCC |
| Output Clamp Current | +/-20 mA; VO < 0 or VO > VCC |
| Continuous Output Current | +/-35 mA; VO = 0 V to VCC |
| Continuous Current Through VCC or GND | +/-70 mA; absolute maximum rating |
| Junction Temperature | 150°C; absolute maximum rating |
| Storage Temperature | -65°C to 150°C; absolute maximum rating |
| Junction-to-Ambient Thermal Resistance, D Package | 73°C/W; SOIC-16 |
| Junction-to-Ambient Thermal Resistance, N Package | 67°C/W; PDIP-16 |
| Junction-to-Ambient Thermal Resistance, NS Package | 64°C/W; SO-16 |
| Junction-to-Ambient Thermal Resistance, PW Package | 108°C/W; TSSOP-16 |
| High-Level Output Voltage at 2 V, Light Load | min 1.9 V, typ 1.998 V; VCC = 2 V, IOH = -20 uA, TA = 25°C |
| High-Level Output Voltage at 4.5 V, Light Load | min 4.4 V, typ 4.499 V; VCC = 4.5 V, IOH = -20 uA, TA = 25°C |
| High-Level Output Voltage at 6 V, Light Load | min 5.9 V, typ 5.999 V; VCC = 6 V, IOH = -20 uA, TA = 25°C |
| High-Level Output Voltage at 4.5 V, Loaded | min 3.84 V; SN74HC151, VCC = 4.5 V, IOH = -6 mA, over recommended TA |
| High-Level Output Voltage at 6 V, Loaded | min 5.34 V; SN74HC151, VCC = 6 V, IOH = -7.8 mA, over recommended TA |
| Low-Level Output Voltage at 2 V, Light Load | typ 0.002 V, max 0.1 V; VCC = 2 V, IOL = 20 uA, TA = 25°C |
| Low-Level Output Voltage at 4.5 V, Light Load | typ 0.001 V, max 0.1 V; VCC = 4.5 V, IOL = 20 uA, TA = 25°C |
| Low-Level Output Voltage at 6 V, Light Load | typ 0.001 V, max 0.1 V; VCC = 6 V, IOL = 20 uA, TA = 25°C |
| Low-Level Output Voltage at 4.5 V, Loaded | max 0.33 V; SN74HC151, VCC = 4.5 V, IOL = 6 mA, over recommended TA |
| Low-Level Output Voltage at 6 V, Loaded | max 0.33 V; SN74HC151, VCC = 6 V, IOL = 7.8 mA, over recommended TA |
| Input Current | max +/-1000 nA; SN74HC151, VCC = 6 V, VI = VCC or 0 V |
| Supply Current | typ 8 uA, max 80 uA; SN74HC151, VCC = 6 V, IO = 0, TA = 25°C typ, over recommended TA max |
| Input Capacitance | typ 3 pF, max 10 pF; VCC = 2 V to 6 V |
| Propagation Delay, Select to Output, CL = 50 pF | typ 30 ns, max 63 ns; SN74HC151, A/B/C to Y/W, VCC = 4.5 V |
| Propagation Delay, Data to Output, CL = 50 pF | typ 23 ns, max 49 ns; SN74HC151, any D to Y/W, VCC = 4.5 V |
| Propagation Delay, Strobe to Output, CL = 50 pF | typ 15 ns, max 32 ns; SN74HC151, G to Y/W, VCC = 4.5 V |
| Output Transition Time, CL = 50 pF | typ 9 ns, max 19 ns; SN74HC151, Y or W, VCC = 4.5 V |
| Propagation Delay, Select to Output, CL = 150 pF | typ 33 ns, max 88 ns; SN74HC151, A/B/C to Y/W, VCC = 4.5 V |
| Propagation Delay, Data to Output, CL = 150 pF | typ 29 ns, max 69 ns; SN74HC151, any D to Y/W, VCC = 4.5 V |
| Propagation Delay, Strobe to Output, CL = 150 pF | typ 21 ns, max 51 ns; SN74HC151, G to Y/W, VCC = 4.5 V |
| Output Transition Time, CL = 150 pF | typ 16 ns, max 53 ns; SN74HC151, Y or W, VCC = 4.5 V |
| Power Dissipation Capacitance | typ 70 pF; TA = 25°C, no load |
| Strobe Function | G low enables inputs; G high forces Y low and W high |
| Select Code 000 | Y = D0, W = inverted D0; C = L, B = L, A = L, G = L |
| Select Code 001 | Y = D1, W = inverted D1; C = L, B = L, A = H, G = L |
| Select Code 010 | Y = D2, W = inverted D2; C = L, B = H, A = L, G = L |
| Select Code 011 | Y = D3, W = inverted D3; C = L, B = H, A = H, G = L |
| Select Code 100 | Y = D4, W = inverted D4; C = H, B = L, A = L, G = L |
| Select Code 101 | Y = D5, W = inverted D5; C = H, B = L, A = H, G = L |
| Select Code 110 | Y = D6, W = inverted D6; C = H, B = H, A = L, G = L |
| Select Code 111 | Y = D7, W = inverted D7; C = H, B = H, A = H, G = L |
| Bypass Capacitor Recommendation | 0.1 uF; install close to each VCC terminal |
| Unused Input Handling | Connect unused inputs to VCC or GND; required for proper device operation |
| Datasheet Status | request_only |
Product Overview
The SN74HC151 is a Texas Instruments 8-line to 1-line data selector/multiplexer in the Signal_Chain category. Its full binary decoding selects one of eight data sources. With G low, the selected input is routed to Y while W provides the inverted selected input. With G high, Y is forced low and W is forced high.
The device supports a recommended supply range of 2 V to 6 V with 5 V nominal operation. Recommended input and output voltage ranges are 0 V to VCC, and SN74HC151 operation is specified across -40°C to 85°C free-air temperature. At VCC = 4.5 V and CL = 50 pF, propagation delay is specified for select inputs, data inputs, and the strobe path.
Package choices include SOIC-16, PDIP-16, SO-16, and TSSOP-16. Assembly guidance includes placing a 0.1 uF bypass capacitor close to each VCC terminal and connecting unused inputs to VCC or GND for proper device operation.
Key Features
- 8-line to 1-line data selector/multiplexer
- Full binary decoding selects one of eight data sources
- 2 V to 6 V recommended supply range
- 5 V nominal supply operation
- -40°C to 85°C operating free-air temperature
- 0 V to VCC input and output voltage ranges
- G strobe controls enabled and forced output states
- Complementary Y and W output behavior
- SOIC-16, PDIP-16, SO-16, and TSSOP-16 packages
- 0.1 uF bypass capacitor recommended near VCC
Typical Applications
- Eight-source digital signal selection
- Logic data multiplexing
- Binary-addressed input routing
- Complementary output signal generation
- Strobe-controlled data gating
- 5 V logic signal paths
- Compact multiplexer board designs
Procurement Notes
When requesting a quote for SN74HC151, 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 analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.
FAQ
What function does the SN74HC151 provide?
The SN74HC151 is an 8-line to 1-line data selector/multiplexer. Full binary decoding selects one of eight data sources, and the selected input appears at Y while W provides the inverted selected input when G is low.
What supply voltage range is recommended for SN74HC151?
The recommended operating supply range is 2 V to 6 V, with 5 V listed as the nominal supply voltage. Input and output voltage ranges are specified from 0 V to VCC under recommended operating conditions.
How does the G strobe input affect the outputs?
When G is low, the inputs are enabled and the binary select code routes D0 through D7 to Y, with W inverted. When G is high, Y is forced low and W is forced high.
Which packages are listed for the SN74HC151?
Package cases listed are SOIC-16 at 9.90 mm x 3.90 mm, PDIP-16 at 19.31 mm x 6.35 mm, SO-16 at 6.20 mm x 5.30 mm, and TSSOP-16 at 5.00 mm x 4.40 mm.
What board-level handling is specified for unused inputs?
Unused inputs should be connected to VCC or GND for proper device operation. The datasheet facts also recommend a 0.1 uF bypass capacitor installed close to each VCC terminal.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 21, 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.