Spark Logic

74HC4053 connection guide

Wire a 5 V bench circuit and test both throws of each Texas Instruments CD74HC4053 switch.

Connect the power and bypass capacitor

With power off, connect a regulated +5 V supply to VCC (16). Join VEE (7) and GND (8) at the supply return. Fit one 100 nF ceramic capacitor between VCC and GND close to the chip.

+5 V to VCC (16). VEE (7) and GND (8) to 0 V. 100 nF between VCC and GND.+5 V0 V100 nFVCC 16VEE 7GND 8

Complete the signal and control wiring below before applying power. With meter common at pin 8, verify +5 V at pin 16 and 0 V at pin 7.

Choose a signal path ↓

1 B1 2 B0 3 C1 4 COM C 5 C0 6 EN 7 VEE Used in this circuit8 GND Used in this circuit
16 VCC Used in this circuit15 COM B 14 COM A 13 A1 12 A0 11 S0 10 S1 9 S2
Top view · Pin 1 at upper left · Schematic outline

Choose a switch group and signal path

Wire group B · Throw 1 · HIGH

Disable both signal sources and turn off the IC supply before moving jumpers. Connect 1 V DC to B0 (2) and 4 V DC to B1 (1). Join both source returns and the meter common to GND (8). Place the meter’s positive probe on COM B (15). Use a high-impedance meter or a scope input of 1 MΩ or higher.

Group B: 4 V on pin 1 is routed to COM 15.1 V4 VB0 2B1 1COM B 15Meter +Group B

Set these control pins with jumpers to the rails. Leave the other groups’ analog terminals open. Turn on the IC supply before enabling the two signal sources.

1 B1 Used in this circuit2 B0 Used in this circuit3 C1 4 COM C 5 C0 6 EN Used in this circuit7 VEE 8 GND Used in this circuit
16 VCC 15 COM B Used in this circuit14 COM A 13 A1 12 A0 11 S0 Used in this circuit10 S1 Used in this circuit9 S2 Used in this circuit
SOP-16 · Top view · Pin 1 at upper left · Schematic outline
Lines show bidirectional switch paths.

Verify the result at COM B

With power on, the meter should read approximately 4 V relative to GND. If it reads the other source, check S1 at pin 10. If neither level appears, check pin numbering, the source returns and EN at pin 6.

Keep every driven analog pin within 0 to +5 V in this circuit, including the unselected throw. Apply signals with the IC powered. See the electrical limits.

Package and documents

NS · 10.2 × 5.3 mm nominal body · 1.27 mm lead pitch. Use TI drawing 4220735/A for footprint dimensions and tolerances.

Order codes in TI’s 7 October 2026 addendum:

  • Not recommended for new designs: CD74HC4053NSR, CD74HC4053NSR.A.

Pin assignments: Figure and Table 4-3 (p. 5). Switching: Figure 7-3 and Table 7-3 (pp. 24–25). Supply bypass: § 8.3 (p. 27). Order codes and package drawings follow the datasheet.