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SN74HC153 Dual 4-to-1 Mux

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by Ray

Dual 4-to-1 data selector/multiplexer with common select lines.

logicmultiplexerdata-selector74hctisoic-16
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SN74HC153

Texas Instruments · Multiplexer · SOIC-16

The SN74HC153 contains two independent 4-to-1 multiplexers with common select inputs and separate enables. Because the address lines are shared, the two halves route a 2-bit-wide word from one of four input pairs, useful for bus selection and data routing.

Pinout

Pin Name Type Function
1 1G input Active-low strobe (enable) for mux 1. When high, output 1Y is forced low regardless of select or data inputs; when low, 1Y follows the selected 1Cn input.
2 B input Data-select input B (MSB), shared by both mux sections. Together with A, selects one of the four Cn data inputs per section.
3 1C3 input Mux 1 data input 3. Routed to output 1Y when select inputs B,A = 1,1 and 1G is low.
4 1C2 input Mux 1 data input 2. Routed to output 1Y when select inputs B,A = 1,0 and 1G is low.
5 1C1 input Mux 1 data input 1. Routed to output 1Y when select inputs B,A = 0,1 and 1G is low.
6 1C0 input Mux 1 data input 0. Routed to output 1Y when select inputs B,A = 0,0 and 1G is low.
7 1Y output Mux 1 data output. Reproduces the selected 1Cn data input when 1G is low; forced low when 1G is high. ±6 mA drive at VCC = 5 V.
8 GND power_in Ground return. 0 V reference for supply and all I/O.
9 2Y output Mux 2 data output. Reproduces the selected 2Cn data input when 2G is low; forced low when 2G is high. ±6 mA drive at VCC = 5 V.
10 2C0 input Mux 2 data input 0. Routed to output 2Y when select inputs B,A = 0,0 and 2G is low.
11 2C1 input Mux 2 data input 1. Routed to output 2Y when select inputs B,A = 0,1 and 2G is low.
12 2C2 input Mux 2 data input 2. Routed to output 2Y when select inputs B,A = 1,0 and 2G is low.
13 2C3 input Mux 2 data input 3. Routed to output 2Y when select inputs B,A = 1,1 and 2G is low.
14 A input Data-select input A (LSB), shared by both mux sections. Together with B, selects one of the four Cn data inputs per section.
15 2G input Active-low strobe (enable) for mux 2. When high, output 2Y is forced low regardless of select or data inputs; when low, 2Y follows the selected 2Cn input.
16 VCC power_in Positive supply, 2 V to 6 V (5 V nominal). Bypass locally with a 100 nF ceramic to GND.

Key specifications

Parameter Value
Type Dual 4-to-1 multiplexer / data selector
Logic family 74HC (CMOS)
Select lines Shared across both muxes
Supply voltage 2 V to 6 V
Propagation delay 18 ns typ at 5 V
Operating temperature -40 C to 85 C

Ordering variants

Same part, different packaging or reel option.

  • SN74HC153D
  • SN74HC153N
  • SN74HC153NS
  • SN74HC153PW
  • SN74HC153J
  • SN74HC153FK

CAD (KiCad official)

  • Symbol: sn74hc153.kicad_sym
  • Footprint: sn74hc153.kicad_mod
  • 3D model: SOIC-16 body from KiCad Package_SO/SOIC-16_3.9x9.9mm_P1.27mm.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (29 pp, sha256 e90c95283a9c771c, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF