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CD74HCT151E
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Texas Instruments Signal Switches, Multiplexers, Decoders, PDIP-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
markdownCD74HCT151E
Texas Instruments · Signal Switches, Multiplexers, Decoders · PDIP-16
CD74HCT151E from Texas Instruments, in a PDIP-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 | D3 | input | Data input channel 3 of the 8-channel multiplexer; it is routed to the output when C, B, A = 0, 1, 1 and G is low. |
| 2 | D2 | input | Data input channel 2 of the 8-channel multiplexer; it is routed to the output when C, B, A = 0, 1, 0 and G is low. |
| 3 | D1 | input | Data input channel 1 of the 8-channel multiplexer; it is routed to the output when C, B, A = 0, 0, 1 and G is low. |
| 4 | D0 | input | Data input channel 0 of the 8-channel multiplexer; it is routed to the output when C, B, A = 0, 0, 0 and G is low. |
| 5 | Y | output | Non-inverting multiplexer output that follows the selected data input while G is low and is low when G is high. |
| 6 | W | output | Inverting multiplexer output that is the complement of the selected data input while G is low and is high when G is high. |
| 7 | G | input | Active-low enable input; when high, it disables the multiplexer so that W is high and Y is low. |
| 8 | GND | power_in | Ground reference for the device. |
| 9 | C | input | Binary select input C (most significant select bit) for choosing one of the eight data channels. |
| 10 | B | input | Binary select input B (middle select bit) for choosing one of the eight data channels. |
| 11 | A | input | Binary select input A (least significant select bit) for choosing one of the eight data channels. |
| 12 | D7 | input | Data input channel 7 of the 8-channel multiplexer; it is routed to the output when C, B, A = 1, 1, 1 and G is low. |
| 13 | D6 | input | Data input channel 6 of the 8-channel multiplexer; it is routed to the output when C, B, A = 1, 1, 0 and G is low. |
| 14 | D5 | input | Data input channel 5 of the 8-channel multiplexer; it is routed to the output when C, B, A = 1, 0, 1 and G is low. |
| 15 | D4 | input | Data input channel 4 of the 8-channel multiplexer; it is routed to the output when C, B, A = 1, 0, 0 and G is low. |
| 16 | VCC | power_in | Supply voltage; the datasheet specifies 4.5 V to 5.5 V recommended operation for HCT types, with a 0.1-µF bypass capacitor recommended close to the pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | PDIP-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 (HCT) | VIH | 2 | V | VCC = 4.5 to 5.5 V; 25℃ | 5 | ||
| Low level input voltage (HCT) | VIL | 0.8 | V | VCC = 4.5 to 5.5 V; 25℃ | 5 | ||
| High level output voltage (HCT) | VOH | 4.4 | V | IOH = -20 μA; VCC = 4.5 V; 25℃ | 5 | ||
| High level output voltage (HCT) | VOH | 3.98 | V | IOH = -4 mA; VCC = 4.5 V; 25℃ | 5 | ||
| High level output voltage (HCT) | VOH | 3.7 | V | IOH = -4 mA; VCC = 4.5 V; -55℃ to 125℃ | 5 | ||
| Low level output voltage (HCT) | VOL | 0.1 | V | IOL = 20 mA; VCC = 4.5 V; 25℃ | 5 | ||
| Low level output voltage (HCT) | VOL | 0.26 | V | IOL = 4 mA; VCC = 4.5 V; 25℃ | 5 | ||
| Low level output voltage (HCT) | VOL | 0.4 | V | IOL = 4 mA; VCC = 4.5 V; -55℃ to 125℃ | 5 | ||
| Input leakage current (HCT) | II | -0.1 | 0.1 | μA | VI = VCC or GND; VCC = 5.5 V; 25℃ | 5 | |
| Input leakage current (HCT) | II | -1 | 1 | μA | VI = VCC or GND; VCC = 5.5 V; -55℃ to 125℃ | 5 | |
| Supply current (HCT) | ICC | 8 | μA | VI = VCC or GND; VCC = 5.5 V; 25℃ | 5 | ||
| Supply current (HCT) | ICC | 160 | μA | VI = VCC or GND; VCC = 5.5 V; -55℃ to 125℃ | 5 | ||
| Additional supply current per input pin, select inputs | ΔICC | 100 | 540 | μA | Select inputs held at VCC - 2.1 V; VCC = 4.5 to 5.5 V; 25℃ | 5 | |
| Additional supply current per input pin, select inputs | ΔICC | 735 | μA | Select inputs held at VCC - 2.1 V; VCC = 4.5 to 5.5 V; -55℃ to 125℃ | 5 | ||
| Additional supply current per input pin, data inputs | ΔICC | 100 | 162 | μA | Data inputs held at VCC - 2.1 V; VCC = 4.5 to 5.5 V; 25℃ | 5 | |
| Additional supply current per input pin, data inputs | ΔICC | 220.5 | μA | Data inputs held at VCC - 2.1 V; VCC = 4.5 to 5.5 V; -55℃ to 125℃ | 5 | ||
| Additional supply current per input pin, enable inputs | ΔICC | 100 | 108 | μA | Enable inputs held at VCC - 2.1 V; VCC = 4.5 to 5.5 V; 25℃ | 5 | |
| Additional supply current per input pin, enable inputs | ΔICC | 147 | μA | Enable inputs held at VCC - 2.1 V; VCC = 4.5 to 5.5 V; -55℃ to 125℃ | 5 | ||
| Propagation delay, any data input to Y (HCT) | tpd | 16 | 38 | ns | Input tt = 6 ns, CL = 50 pF, VCC = 4.5 V, 25℃; typ at CL = 15 pF, VCC = 5 V | 6 | |
| Propagation delay, any data input to Y (HCT) | tpd | 57 | ns | Input tt = 6 ns, CL = 50 pF, VCC = 4.5 V, -55℃ to 125℃ | 6 | ||
| Propagation delay, any data input to W (HCT) | tpd | 15 | 36 | ns | Input tt = 6 ns, CL = 50 pF, VCC = 4.5 V, 25℃; typ at CL = 15 pF, VCC = 5 V | 6 | |
| Propagation delay, any data input to W (HCT) | tpd | 54 | ns | Input tt = 6 ns, CL = 50 pF, VCC = 4.5 V, -55℃ to 125℃ | 6 | ||
| Propagation delay, any select to Y (HCT) | tpd | 17 | 41 | ns | Input tt = 6 ns, CL = 50 pF, VCC = 4.5 V, 25℃; typ at CL = 15 pF, VCC = 5 V | 6 | |
| Propagation delay, any select to Y (HCT) | tpd | 62 | ns | Input tt = 6 ns, CL = 50 pF, VCC = 4.5 V, -55℃ to 125℃ | 6 | ||
| Propagation delay, any select to W (HCT) | tpd | 18 | 43 | ns | Input tt = 6 ns, CL = 50 pF, VCC = 4.5 V, 25℃; typ at CL = 15 pF, VCC = 5 V | 6 | |
| Propagation delay, any select to W (HCT) | tpd | 65 | ns | Input tt = 6 ns, CL = 50 pF, VCC = 4.5 V, -55℃ to 125℃ | 6 | ||
| Propagation delay, enable to Y (HCT) | tpd | 12 | 29 | ns | Input tt = 6 ns, CL = 50 pF, VCC = 4.5 V, 25℃; typ at CL = 15 pF, VCC = 5 V | 6 | |
| Propagation delay, enable to Y (HCT) | tpd | 44 | ns | Input tt = 6 ns, CL = 50 pF, VCC = 4.5 V, -55℃ to 125℃ | 6 | ||
| Propagation delay, enable to W (HCT) | tpd | 15 | 36 | ns | Input tt = 6 ns, CL = 50 pF, VCC = 4.5 V, 25℃; typ at CL = 15 pF, VCC = 5 V | 6 | |
| Propagation delay, enable to W (HCT) | tpd | 54 | ns | Input tt = 6 ns, CL = 50 pF, VCC = 4.5 V, -55℃ to 125℃ | 6 | ||
| Output transition time (HCT) | tt | 15 | ns | Input tt = 6 ns, CL = 50 pF, VCC = 4.5 V, 25℃ | 6 | ||
| Output transition time (HCT) | tt | 22 | ns | Input tt = 6 ns, CL = 50 pF, VCC = 4.5 V, -55℃ to 125℃ | 6 | ||
| Supply voltage range (HCT types) | VCC | 4.5 | 5.5 | V | HCT types | 4 | |
| Temperature range | TA | -55 | 125 | ℃ | 4 | ||
| DC input or output voltage | VI, VO | 0 | V | Maximum printed as VCC | 4 | ||
| Input rise and fall time | tt | 500 | ns | VCC = 4.5 V | 4 | ||
| Supply voltage range | VCC | -0.5 | 7 | V | 4 | ||
| Input diode current | IIK | -20 | 20 | mA | VI < -0.5 V or VI > VCC + 0.5 V | 4 | |
| Output diode current | IOK | -20 | 20 | mA | VO < -0.5 V or VO > VCC + 0.5 V | 4 | |
| Continuous output current | IO | -25 | 25 | mA | VO > -0.5 V or VO < VCC + 0.5 V | 4 | |
| Continuous current through VCC or GND | -50 | 50 | mA | 4 | |||
| Junction temperature | TJ | 150 | °C | 4 | |||
| Storage temperature | Tstg | -65 | 150 | °C | 4 | ||
| Lead temperature (soldering 10 s) | 300 | °C | Soldering 10 s | 4 | |||
| Junction-to-ambient thermal resistance | RθJA | 67 | °C/W | N (PDIP) 16-pin package | 4 |
CAD (KiCad official)
- Symbol:
CD74HCT151E - Footprint:
Package_DIP:DIP-16_W7.62mm - 3D model: PDIP-16 (KiCad packages3D, STEP)
- 3D model files:
cd74hct151e-etched.step/cd74hct151e-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cd74hct151e.step/cd74hct151e.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (20 pp, sha256
f302e6d926db25eb, retrieved 2026-10-16, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- 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).