CD74HC4094PWT 8-Bit Shift Register with Tri-State Output

Part Overview

The CD74HC4094PWT is an 8-stage shift register with storage latch and tri-state bus driver output, manufactured by Texas Instruments in 16-TSSOP surface mount packaging. This component functions as a serial-to-parallel converter, accepting serial input data and providing parallel output through tri-state drivers suitable for bus applications.

The CD74HC4094PWT carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this logic function.

Substiute Parts

CD74HC4094PWT

Texas InstrumentsIn Stock: 796CD74HC4094PWT Datasheet

Current PartRFQ

CD74HC4094PWR

Texas InstrumentsIn Stock: 64803CD74HC4094PWR Datasheet

Parametric EquivalentRFQ

CD74HC4094PWRG4

Texas InstrumentsIn Stock: 1878CD74HC4094PWRG4 Datasheet

Parametric EquivalentRFQ

74HC4094PW,118

Nexperia USA Inc.In Stock: 703874HC4094PW,118 Datasheet

MFR RecommendedRFQ

74HC4094PW-Q100J

Nexperia USA Inc.In Stock: 582974HC4094PW-Q100J Datasheet

MFR RecommendedRFQ

M74HC4094YTTR

STMicroelectronicsIn Stock: 2222M74HC4094YTTR Datasheet

MFR RecommendedRFQ

MC74HC4094ADTR2G

onsemiIn Stock: 3254MC74HC4094ADTR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD74HC4094PWT is determined by the following critical parameters:

• Logic Type: Shift Register (8-bit configuration)
• Output Type: Tri-State
• Function: Serial to Parallel conversion capability
• Voltage Supply Range: 2V ~ 6V
• Package / Case: 16-TSSOP form factor
• Mounting Type: Surface Mount
• Base Product Number: 74HC4094

All identified substitute parts maintain identical electrical specifications and mechanical compatibility. Substitutes are grouped by manufacturer and product status to facilitate selection based on supply availability and lifecycle requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: CD74HC4094PWR (Texas Instruments)

The CD74HC4094PWR is the direct parametric equivalent manufactured by Texas Instruments with Active product status and highest inventory availability (64,700 units). This part maintains identical electrical and mechanical specifications to the obsolete CD74HC4094PWT, including full temperature range (-55°C ~ 125°C) and supply voltage compatibility (2V ~ 6V). Selection of this part ensures continuity with the original design without modification.

Secondary Recommendations:

74HC4094PW,118 (Nexperia USA Inc.) and 74HC4094PW-Q100J (Nexperia USA Inc.) are Active products with adequate inventory. The 74HC4094PW-Q100J carries AEC-Q100 automotive qualification, suitable for applications requiring automotive-grade components. Operating temperature range is -40°C ~ 125°C, which is acceptable for most applications but does not extend to the lower -55°C limit of the original part.

M74HC4094YTTR (STMicroelectronics) is an Active product with AEC-Q100 automotive qualification and 2,200 units in stock. Operating temperature range is -40°C ~ 125°C.

MC74HC4094ADTR2G (onsemi) carries Last Time Buy status with 3,176 units available. This part maintains the full -55°C ~ 125°C temperature range of the original CD74HC4094PWT.

Avoid: CD74HC4094PWRG4 is Discontinued at DiGi Electronics and should not be selected for new designs despite remaining inventory.

Frequently Asked Questions (FAQ)

Q: Can CD74HC4094PWR be used as a direct replacement for CD74HC4094PWT?

A: Yes. CD74HC4094PWR is a parametric equivalent with identical logic type, bit configuration, output type, function, voltage supply range, operating temperature range, and 16-TSSOP package. The primary difference is product status (Active vs. Obsolete) and packaging format (Cut Tape & Digi-Reel vs. standard packaging).

Q: What is the difference between the Nexperia parts (74HC4094PW,118 and 74HC4094PW-Q100J)?

A: Both are manufactured by Nexperia USA Inc. with identical electrical specifications and 16-TSSOP packaging. The 74HC4094PW-Q100J includes AEC-Q100 automotive qualification and is suitable for automotive applications. The operating temperature range for both is -40°C ~ 125°C, which is 15°C higher than the original CD74HC4094PWT minimum of -55°C.

Q: Does the operating temperature difference between -55°C and -40°C affect substitution?

A: The operating temperature range difference must be evaluated against application requirements. If the design operates only within -40°C ~ 125°C, substitutes with this range are acceptable. If operation below -40°C is required, select CD74HC4094PWR or MC74HC4094ADTR2G, which maintain the -55°C lower limit.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All identified substitute parts carry ROHS3 Compliant status and are REACH Unaffected, matching the compliance profile of the original CD74HC4094PWT.

Q: What packaging formats are available for substitutes?

A: CD74HC4094PWR is supplied in Cut Tape (CT) & Digi-Reel format. Nexperia and STMicroelectronics parts are supplied in Tape & Reel (TR) format. onsemi MC74HC4094ADTR2G is supplied in Tape & Reel (TR) format. All maintain the 16-TSSOP surface mount package form factor.

Q: Which substitute has the highest inventory availability?

A: CD74HC4094PWR from Texas Instruments has the highest inventory with 64,700 units in stock, followed by 74HC4094PW,118 (Nexperia) with 7,021 units.