Is there a pin-compatible replacement for 74HC4094D,653?

No pin-compatible replacement for the 74HC4094D,653 has been confirmed. Alternatives like the 74HC595D have different pinouts and control signals, necessitating design changes.

What risks should I check before replacing 74HC4094D,653?

Key risks include pinout mismatches, different control logic (e.g., latch vs. strobe), and timing characteristic differences. Always verify the datasheet for the candidate part before redesign.

74HC4094D,653 Alternatives, Datasheet & Cross Reference | Nexperia USA Inc.

The Nexperia 74HC4094D,653 is an 8-bit SIPO shift register in a 16-SOIC package. While no direct drop-in replacements are confirmed, several functional alternatives like the 74HC595 and 74HC594 series exist but require design modifications.

AI replacement insight

Package risklow

Alternatives are available in the same 16-SOIC package.

Electrical riskhigh

Pinout and control logic are different, requiring full re-validation.

Firmware riskmedium

Changes to control signal timing and sequence may be needed.

Can it be replaced directly?

No direct, pin-compatible replacement is available. All viable alternatives require design changes.

Best replacement path

Evaluate 74HC595D as a functional alternative, which requires a board respin and firmware changes.

Main risk

The primary risk is the lack of a pin-compatible option, forcing a PCB redesign and firmware adjustments for different control logic.

Recommended alternatives

A functionally similar 8-bit shift register, but it is not pin-compatible and requires board and logic changes.

View details

Alternative comparison matrix

Feature / factor	74HC4094D,653	74HC595D	74HC594D,118	Compatibility / risk
Package	16-SOIC	16-SOIC	16-SOIC	16-SOIC — Package style matches.; 74HC594D,118: Package style matches.
Pinout	Standard	Different	Different	Different — Not pin-compatible per discovery evidence. Requires redesign.; 74HC594D,118: Pinout differs. Requires redesign.
Voltage	2V to 6V	2V to 6V	2V to 6V	2V to 6V — Operating voltage range matches.; 74HC594D,118: Operating voltage range matches.
Function	SIPO w/ Strobe	SIPO w/ Latch	SIPO w/ Storage	SIPO w/ Latch / SIPO w/ Storage — Similar SIPO function but control logic (e.g., latch vs strobe) differs.; 74HC594D,118: Very similar function but control pins (e.g., MR) and pinout differ.

Application & sourcing insights

Questions & answers

The 74HC595D is a popular functional alternative, offering similar 8-bit SIPO capabilities. However, it is not pin-compatible and requires changes to the PCB layout and control logic.