Texas Instruments SN74HC153DRE4

Overview

SN74HC153DRE4 from Texas Instruments is a dual 4-line to 1-line data selector/multiplexer in SOIC-16 package, operating from 2 V to 6 V supply, with typical propagation delay of 26 ns at 4.5 V and ±6-mA output drive capability. It implements full binary decoding for channel selection, features independent strobe (G) inputs per section, and supports parallel-to-serial conversion in digital logic systems such as address routing and signal routing in microcontroller peripheral interfaces.

For engineers reviewing the SN74HC153DRE4 datasheet, SN74HC153DRE4 pinout, SN74HC153DRE4 application, or SN74HC153DRE4 equivalent, key selection criteria include its dual-channel 4:1 multiplexing architecture, 16-pin SOIC thermal performance (R_θJA = 73°C/W), low ICC (80 μA max), and compatibility with LSTTL loads - critical for legacy interface bridging and logic consolidation in industrial control I/O modules.

Technical Context

The SN74HC153DRE4 integrates two independent 4:1 multiplexers sharing common address inputs (A, B) but with separate strobe (G1, G2) and output (Y1, Y2) terminals. Each section uses AND-OR-inverter logic to decode binary select lines and route one of four data inputs (C0–C3) to its output.

Strobe-controlled enable/disable operation forces the respective output low when G is high; outputs are high-impedance only in disabled state if configured with external pull-ups - no true 3-state outputs. Input transition times are specified up to 400 ns (at VCC = 6 V), and device functionality is validated across −40°C to +85°C ambient temperature.

Key Specifications

Pinout & Package

SN74HC153DRE4 is housed in a 16-pin SOIC (D) package measuring 9.90 mm × 3.90 mm, with standard 1.27-mm lead pitch and gull-wing leads. Thermal resistance is R_θJA = 73°C/W, supporting continuous operation at ambient temperatures up to +85°C with minimal board-level heatsinking.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual 4:1 multiplexer applications.

Compared with SN74HC153DRE4, SN74HCT153DR offers stronger noise immunity in 5-V mixed-logic systems but consumes more quiescent power, while 74LVX153M delivers faster switching at 3.3 V but sacrifices supply voltage range and cross-voltage interoperability.

Availability

SN74HC153DRE4 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, microcontroller peripheral multiplexing, and legacy system bus interface applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for SN74HC153DRE4 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions, with over 90 years of innovation in industrial, automotive, and communications markets.

The SN74HC153DRE4 belongs to TI's 74HC logic family, designed for robust, low-power digital signal routing in industrial control, instrumentation, and legacy interface adaptation where voltage flexibility and predictable timing are essential.

FAQ

What is the maximum clock frequency supported by SN74HC153DRE4 for reliable data selection?

The SN74HC153DRE4 does not operate on a clock signal - it is a combinational logic device whose output responds asynchronously to input changes. Its usable data rate is governed by propagation delay: at VCC = 4.5 V and CL = 50 pF, tpd = 26 ns (max 38 ns), supporting reliable operation up to ~20 MHz for clean address/data setup. For SN74HC153DRE4, ensure address inputs (A, B, G) are stable for ≥15 ns before data sampling to avoid glitches.

Can SN74HC153DRE4 be used to implement a 8:1 multiplexer?

Yes, SN74HC153DRE4 can be configured as an 8:1 multiplexer by cascading its two 4:1 sections: connect outputs Y1 and Y2 to inputs C0 and C1 of a third multiplexer (or use external gating), with the most significant select bit controlling the strobes or enabling logic. While SN74HC153DRE4 itself lacks native 8:1 functionality, this configuration is documented in TI's application notes and preserves timing integrity when strobe synchronization is maintained.

Does SN74HC153DRE4 have 3-state outputs?

No, SN74HC153DRE4 does not feature 3-state (high-impedance) outputs. When disabled via the strobe (G) input, the output is actively driven LOW - not tri-stated. To achieve bus-sharing behavior, external pull-up resistors and OR/NOR logic or additional gating are required. This differs from devices like SN74HC251, and users must account for SN74HC153DRE4's active-Low disable characteristic in system-level signal routing.

What is the recommended bypass capacitor value for SN74HC153DRE4?

Texas Instruments specifies a 0.1-μF ceramic capacitor placed as close as possible to the VCC pin (Pin 16) and GND (Pin 8) of SN74HC153DRE4 to suppress high-frequency switching noise. For systems with heavy digital activity, paralleling a 1-μF capacitor is acceptable to improve low-frequency decoupling. The capacitor must be installed within 5 mm of the pins, with short, wide traces to minimize inductance - critical for maintaining SN74HC153DRE4's specified tpd and noise immunity.

Is SN74HC153DRE4 compatible with 3.3-V microcontrollers?

Yes, SN74HC153DRE4 operates reliably at 3.3 V (within its 2–6 V range), with VIH = 2.31 V and VIL = 1.09 V at VCC = 3.3 V - fully compatible with standard 3.3-V CMOS logic levels. Its ±6-mA drive strength at 3.3 V is reduced versus 5 V but remains sufficient for driving other 3.3-V inputs. Ensure SN74HC153DRE4's VCC is supplied from the same 3.3-V rail as the MCU to avoid level-shifting complexity.