Texas Instruments SN74HC153D

Overview

SN74HC153D 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 binary-decoded channel selection with independent strobe (G) inputs per section and supports parallel-to-serial conversion in digital logic systems.

For engineers reviewing the SN74HC153D datasheet, SN74HC153D pinout, SN74HC153D application, or SN74HC153D equivalent, key selection criteria include its dual-channel multiplexing architecture, 16-pin SOIC footprint, guaranteed 80-μA max ICC, and compatibility with LSTTL load driving (up to 15 units) in industrial control and test equipment signal routing.

Technical Context

The SN74HC153D integrates two independent 4:1 multiplexer sections sharing common address inputs (A, B) but featuring separate enable (G1, G2) terminals. Each section uses full binary decoding to route one of four data inputs (C0–C3) to its output (Y1 or Y2) based on A/B state, with active-low enable asserting low output when high.

Its CMOS HC-family design ensures rail-to-rail input thresholds, low static current (≤100 nA), and robust noise immunity across −40°C to +85°C operation. Switching performance is characterized at CL = 50 pF, with tpd ranging from 17 ns (6 V) to 45 ns (2 V) for address-to-output paths and 9–24 ns for strobe-to-output paths.

Key Specifications

Pinout & Package

SN74HC153D is housed in a 16-pin SOIC (D) package measuring 9.90 mm × 3.90 mm with standard 1.27-mm lead pitch and 2.00-mm max height.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74HC153D, SN74HCT153D offers enhanced TTL input compatibility at the cost of higher quiescent current, while CD74HC153M provides identical performance in an equivalently qualified package - making the latter ideal for supply chain redundancy without design change.

Availability

SN74HC153D is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive diagnostic interfaces, and test equipment signal routing requiring stable component supply and long-term obsolescence management.

Supply support for SN74HC153D 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 50 years of innovation in industrial, automotive, and communications markets.

The SN74HC153D belongs to TI's 74HC logic family, designed for high-speed, low-power digital signal routing in space-constrained industrial and test equipment where reliability and wide supply voltage tolerance are essential.

FAQ

What is the maximum clock/data rate supported by SN74HC153D?

The SN74HC153D does not operate on a clock; it is a combinational logic device. Its usable data switching rate depends on propagation delay and load capacitance. With CL = 50 pF and VCC = 4.5 V, tpd is 26 ns typ, supporting reliable signal routing up to ~20 MHz in well-designed layouts. For higher frequencies, layout parasitics and output loading must be carefully controlled.

Does SN74HC153D support 3.3-V operation?

Yes, SN74HC153D fully supports 3.3-V operation within its specified 2-V to 6-V supply range. At VCC = 3.3 V, VIH is 2.31 V min and VIL is 0.99 V max per datasheet Section 5.2, ensuring robust interfacing with 3.3-V microcontrollers and FPGAs without level shifters.

Can SN74HC153D outputs be wired together for 1-of-8 selection?

No, SN74HC153D outputs (Y1, Y2) are push-pull and not designed for wired-OR configuration. Attempting to tie them together risks contention and excessive current draw. For 1-of-8 functionality, use cascaded enable logic or a dedicated 8:1 multiplexer such as SN74HC251 instead.

What is the meaning of "strobe" input on SN74HC153D?

The strobe (G1/G2) inputs on SN74HC153D are active-high enable controls - when high, they force the corresponding Y output low regardless of address or data inputs. When low, normal 4:1 multiplexing proceeds. This allows independent gating of each channel, enabling time-division multiplexing or fault-safe output disable.

Is SN74HC153D pin-compatible with SN74LS153?

Yes, SN74HC153D is pin-compatible with SN74LS153 in SOIC-16 (D) package, sharing identical pin assignments for inputs, outputs, supply, and ground. However, SN74HC153D requires no external pull-ups, draws far less current, and operates down to 2 V - making it a direct functional upgrade with improved power efficiency and voltage flexibility.