component
SN74LS157N
Public Made by Adomby adom
lingxingic Signal Switches, Multiplexers, Decoders, DIP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSN74LS157N
lingxingic · Signal Switches, Multiplexers, Decoders · DIP-16
SN74LS157N from lingxingic, in a DIP-16. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | S | input | Common data select input that chooses whether each multiplexer passes source 0 (nI0) or source 1 (nI1) to its output. |
| 2 | 1I0 | input | Data input from source 0 for multiplexer 1, selected when S is LOW. |
| 3 | 1I1 | input | Data input from source 1 for multiplexer 1, selected when S is HIGH. |
| 4 | 1Y | output | Multiplexer 1 output; forced LOW when the enable input E is HIGH. |
| 5 | 2I0 | input | Data input from source 0 for multiplexer 2, selected when S is LOW. |
| 6 | 2I1 | input | Data input from source 1 for multiplexer 2, selected when S is HIGH. |
| 7 | 2Y | output | Multiplexer 2 output; forced LOW when the enable input E is HIGH. |
| 8 | GND | power_in | Ground (0 V) reference for the device. |
| 9 | 3Y | output | Multiplexer 3 output; forced LOW when the enable input E is HIGH. |
| 10 | 3I1 | input | Data input from source 1 for multiplexer 3, selected when S is HIGH. |
| 11 | 3I0 | input | Data input from source 0 for multiplexer 3, selected when S is LOW. |
| 12 | 4Y | output | Multiplexer 4 output; forced LOW when the enable input E is HIGH. |
| 13 | 4I1 | input | Data input from source 1 for multiplexer 4, selected when S is HIGH. |
| 14 | 4I0 | input | Data input from source 0 for multiplexer 4, selected when S is LOW. |
| 15 | E | input | Enable input, active LOW; when it is HIGH, all outputs (1Y to 4Y) are forced LOW regardless of the other inputs. |
| 16 | VCC | power_in | Supply voltage; recommended operating range is 2.0 V to 6.0 V and absolute maximum is 7.0 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | lingxingic |
| Package | DIP-16 |
| Category | Logic |
| Pins | 16 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| HIGH-level input voltage | VIH | 1.5 | 1.2 | V | Tamb=25℃; VCC=2.0V | 9 | |
| HIGH-level input voltage | VIH | 3.15 | 2.4 | V | Tamb=25℃; VCC=4.5V | 9 | |
| HIGH-level input voltage | VIH | 4.2 | 3.2 | V | Tamb=25℃; VCC=6.0V | 9 | |
| LOW-level input voltage | VIL | 0.8 | 0.5 | V | Tamb=25℃; VCC=2.0V | 9 | |
| LOW-level input voltage | VIL | 2.1 | 1.35 | V | Tamb=25℃; VCC=4.5V | 9 | |
| LOW-level input voltage | VIL | 2.8 | 1.8 | V | Tamb=25℃; VCC=6.0V | 9 | |
| HIGH-level output voltage | VOH | 1.9 | 2 | V | Tamb=25℃; VI=VIH or VIL; IO=-20uA; VCC=2.0V | 9 | |
| HIGH-level output voltage | VOH | 4.4 | 4.5 | V | Tamb=25℃; VI=VIH or VIL; IO=-20uA; VCC=4.5V | 9 | |
| HIGH-level output voltage | VOH | 5.9 | 6 | V | Tamb=25℃; VI=VIH or VIL; IO=-20uA; VCC=6.0V | 9 | |
| HIGH-level output voltage | VOH | 3.98 | 4.32 | V | Tamb=25℃; VI=VIH or VIL; IO=-4.0mA; VCC=4.5V | 9 | |
| HIGH-level output voltage | VOH | 5.48 | 5.81 | V | Tamb=25℃; VI=VIH or VIL; IO=-5.2mA; VCC=6.0V | 9 | |
| LOW-level output voltage | VOL | 0 | 0.1 | V | Tamb=25℃; VI=VIH or VIL; IO=20uA; VCC=2.0V | 9 | |
| LOW-level output voltage | VOL | 0.15 | 0.26 | V | Tamb=25℃; VI=VIH or VIL; IO=4.0mA; VCC=4.5V | 9 | |
| LOW-level output voltage | VOL | 0.16 | 0.26 | V | Tamb=25℃; VI=VIH or VIL; IO=5.2mA; VCC=6.0V | 9 | |
| input leakage current | II | -1 | 1 | uA | Tamb=25℃; VI=VCC or GND; VCC=6.0V | 9 | |
| supply current | ICC | 8 | uA | Tamb=25℃; VI=VCC or GND; IO=0A; VCC=6.0V | 9 | ||
| HIGH-level input voltage | VIH | 1.5 | V | Tamb=-40℃ to +125℃; VCC=2.0V | 11 | ||
| HIGH-level input voltage | VIH | 3.15 | V | Tamb=-40℃ to +125℃; VCC=4.5V | 11 | ||
| HIGH-level input voltage | VIH | 4.2 | V | Tamb=-40℃ to +125℃; VCC=6.0V | 11 | ||
| LOW-level input voltage | VIL | 0.5 | V | Tamb=-40℃ to +125℃; VCC=2.0V | 11 | ||
| LOW-level input voltage | VIL | 1.35 | V | Tamb=-40℃ to +125℃; VCC=4.5V | 11 | ||
| LOW-level input voltage | VIL | 1.8 | V | Tamb=-40℃ to +125℃; VCC=6.0V | 11 | ||
| HIGH-level output voltage | VOH | 1.9 | V | Tamb=-40℃ to +125℃; VI=VIH or VIL; IO=-20uA; VCC=2.0V | 11 | ||
| HIGH-level output voltage | VOH | 4.4 | V | Tamb=-40℃ to +125℃; VI=VIH or VIL; IO=-20uA; VCC=4.5V | 11 | ||
| HIGH-level output voltage | VOH | 5.9 | V | Tamb=-40℃ to +125℃; VI=VIH or VIL; IO=-20uA; VCC=6.0V | 11 | ||
| HIGH-level output voltage | VOH | 3.7 | V | Tamb=-40℃ to +125℃; VI=VIH or VIL; IO=-4.0mA; VCC=4.5V | 11 | ||
| HIGH-level output voltage | VOH | 5.2 | V | Tamb=-40℃ to +125℃; VI=VIH or VIL; IO=-5.2mA; VCC=6.0V | 11 | ||
| LOW-level output voltage | VOL | 0.1 | V | Tamb=-40℃ to +125℃; VI=VIH or VIL; IO=20uA; VCC=2.0V | 11 | ||
| LOW-level output voltage | VOL | 0.4 | V | Tamb=-40℃ to +125℃; VI=VIH or VIL; IO=4.0mA; VCC=4.5V | 11 | ||
| input leakage current | II | -1 | 1 | uA | Tamb=-40℃ to +125℃; VI=VCC or GND; VCC=6.0V | 11 | |
| supply current | ICC | 160 | uA | Tamb=-40℃ to +125℃; VI=VCC or GND; IO=0A; VCC=6.0V | 11 | ||
| propagation delay nI0, nI1 to nY | tpd | 36 | 125 | ns | Tamb=25℃; CL=50pF; VCC=2.0V; see Figure 6 | 12 | |
| propagation delay nI0, nI1 to nY | tpd | 13 | 25 | ns | Tamb=25℃; CL=50pF; VCC=4.5V; see Figure 6 | 12 | |
| propagation delay nI0, nI1 to nY | tpd | 10 | 21 | ns | Tamb=25℃; CL=50pF; VCC=6.0V; see Figure 6 | 12 | |
| propagation delay S to nY | tpd | 41 | 125 | ns | Tamb=25℃; CL=50pF; VCC=2.0V; see Figure 6 | 12 | |
| propagation delay S to nY | tpd | 15 | 25 | ns | Tamb=25℃; CL=50pF; VCC=4.5V; see Figure 6 | 12 | |
| propagation delay S to nY | tpd | 12 | 21 | ns | Tamb=25℃; CL=50pF; VCC=6.0V; see Figure 6 | 12 | |
| propagation delay E to nY | tpd | 39 | 115 | ns | Tamb=25℃; CL=50pF; VCC=2.0V; see Figure 7 | 12 | |
| propagation delay E to nY | tpd | 14 | 23 | ns | Tamb=25℃; CL=50pF; VCC=4.5V; see Figure 7 | 12 | |
| propagation delay E to nY | tpd | 11 | 20 | ns | Tamb=25℃; CL=50pF; VCC=6.0V; see Figure 7 | 12 | |
| transition time nY | tt | 19 | 75 | ns | Tamb=25℃; CL=50pF; VCC=2.0V; see Figure 6 | 12 | |
| transition time nY | tt | 7 | 15 | ns | Tamb=25℃; CL=50pF; VCC=4.5V; see Figure 6 | 12 | |
| transition time nY | tt | 6 | 13 | ns | Tamb=25℃; CL=50pF; VCC=6.0V; see Figure 6 | 12 | |
| propagation delay nI0, nI1 to nY | tpd | 190 | ns | Tamb=-40℃ to +125℃; CL=50pF; VCC=2.0V; see Figure 6 | 14 | ||
| propagation delay nI0, nI1 to nY | tpd | 38 | ns | Tamb=-40℃ to +125℃; CL=50pF; VCC=4.5V; see Figure 6 | 14 | ||
| propagation delay nI0, nI1 to nY | tpd | 32 | ns | Tamb=-40℃ to +125℃; CL=50pF; VCC=6.0V; see Figure 6 | 14 | ||
| propagation delay S to nY | tpd | 190 | ns | Tamb=-40℃ to +125℃; CL=50pF; VCC=2.0V; see Figure 6 | 14 | ||
| propagation delay S to nY | tpd | 38 | ns | Tamb=-40℃ to +125℃; CL=50pF; VCC=4.5V; see Figure 6 | 14 | ||
| propagation delay S to nY | tpd | 32 | ns | Tamb=-40℃ to +125℃; CL=50pF; VCC=6.0V; see Figure 6 | 14 | ||
| propagation delay E to nY | tpd | 175 | ns | Tamb=-40℃ to +125℃; CL=50pF; VCC=2.0V; see Figure 7 | 14 | ||
| propagation delay E to nY | tpd | 35 | ns | Tamb=-40℃ to +125℃; CL=50pF; VCC=4.5V; see Figure 7 | 14 | ||
| propagation delay E to nY | tpd | 30 | ns | Tamb=-40℃ to +125℃; CL=50pF; VCC=6.0V; see Figure 7 | 14 | ||
| transition time nY | tt | 110 | ns | Tamb=-40℃ to +125℃; CL=50pF; VCC=2.0V; see Figure 6 | 14 | ||
| transition time nY | tt | 22 | ns | Tamb=-40℃ to +125℃; CL=50pF; VCC=4.5V; see Figure 6 | 14 | ||
| transition time nY | tt | 19 | ns | Tamb=-40℃ to +125℃; CL=50pF; VCC=6.0V; see Figure 6 | 14 | ||
| supply voltage | VCC | 2 | 5 | 6 | V | 8 | |
| input voltage | VI | 0 | V | max printed as VCC | 8 | ||
| output voltage | VO | 0 | V | max printed as VCC | 8 | ||
| input transition rise and fall rate | Δt/ΔV | 625 | ns/V | VCC=2.0V | 8 | ||
| input transition rise and fall rate | Δt/ΔV | 1.67 | 139 | ns/V | VCC=4.5V | 8 | |
| input transition rise and fall rate | Δt/ΔV | 83 | ns/V | VCC=6.0V | 8 | ||
| ambient temperature | Tamb | -40 | 125 | ℃ | 8 | ||
| supply voltage | VCC | -0.5 | 7 | V | 8 | ||
| input clamping current | IIK | -20 | 20 | mA | VI < -0.5V or VI > VCC+0.5V | 8 | |
| output clamping current | IOK | -20 | 20 | mA | VO < -0.5V or VO > VCC+0.5V | 8 | |
| output current | IO | -25 | 25 | mA | VO= -0.5V to (VCC+0.5V) | 8 | |
| supply current | ICC | 50 | mA | 8 | |||
| ground current | IGND | -50 | mA | 8 | |||
| storage temperature | Tstg | -65 | 150 | ℃ | 8 | ||
| total power dissipation | Ptot | 500 | mW | 8 | |||
| soldering temperature | TL | 245 | ℃ | 10s, DIP | 8 |
CAD (KiCad official)
- Symbol:
SN74LS157N - Footprint:
Package_DIP:DIP-16_W7.62mm - 3D model: DIP-16 (KiCad packages3D, STEP)
- 3D model files:
sn74ls157n-etched.step/sn74ls157n-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74ls157n.step/sn74ls157n.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: lingxingic datasheet (20 pp, sha256
c9e00cb006f59263, retrieved 2026-10-15, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).