NXT4556UPZ Equivalent & Substitute Parts

Part Overview

The NXT4556UPZ is a voltage level translator integrated circuit manufactured by Nexperia USA Inc. designed for bidirectional signal translation between different voltage domains. This device features one circuit with three bidirectional channels, supporting data rates up to 5 Mbps in a compact 9-WLCSP package measuring 1.06x1.06 mm. The NXT4556UPZ is classified as obsolete, making identification of active equivalent parts essential for new designs and ongoing production requirements.

Substiute Parts

NXT4556UPZ

Nexperia USA Inc.In Stock: 6995NXT4556UPZ Datasheet

Current PartRFQ

NXT4556UPAZ

Nexperia USA Inc.In Stock: 814NXT4556UPAZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the NXT4556UPZ is determined by the following critical parameters that must remain consistent across equivalent parts:

Functional Parameters:

• Translator Type: Voltage Level
• Channel Type: Bidirectional
• Number of Circuits: 1
• Channels per Circuit: 3
• Data Rate: 5 Mbps
• Output Type: Non-Inverted

Physical Parameters:

• Mounting Type: Surface Mount
• Package / Case: 9-WFBGA, CSPBGA
• Supplier Device Package: 9-WLCSP (1.06x1.06)

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected
• Operating Temperature Range: -40°C ~ 85°C (TA)

The NXT4556UPAZ meets all these criteria and is manufactured by the same supplier, Nexperia USA Inc. The primary distinction is that NXT4556UPAZ carries an active product status, whereas the NXT4556UPZ is obsolete. Voltage specifications differ between the two parts and must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The NXT4556UPAZ is the manufacturer-recommended substitute for the obsolete NXT4556UPZ. Both devices are manufactured by Nexperia USA Inc. and share identical functional specifications for circuit count, channel configuration, data rate, and operating temperature range. Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for current production environments.

The primary consideration for substitution is the voltage specification difference. The NXT4556UPZ supports VCCA from 1.65 V to 3.6 V and VCCB from 1.2 V to 3.6 V, while the NXT4556UPAZ operates with VCCA from 1.08 V to 1.98 V and VCCB from 1.62 V to 3.3 V. Application circuits must operate within the voltage ranges specified for the NXT4556UPAZ to ensure proper device operation.

The identical package specification (9-WLCSP, 1.06x1.06 mm) and mounting type (Surface Mount) ensure mechanical and electrical compatibility at the board level. No PCB redesign is required for substitution.

Frequently Asked Questions (FAQ)

Q: Can the NXT4556UPAZ directly replace the NXT4556UPZ in existing designs?

A: Direct replacement is possible only if the application circuit operates within the voltage specifications of the NXT4556UPAZ. The VCCA range (1.08 V ~ 1.98 V) and VCCB range (1.62 V ~ 3.3 V) must be compatible with the system design. If the original design requires VCCA above 1.98 V or VCCB below 1.62 V, the NXT4556UPAZ is not suitable.

Q: Are there any package or footprint differences between these parts?

A: No. Both the NXT4556UPZ and NXT4556UPAZ use the identical 9-WLCSP package (1.06x1.06 mm) with 9-WFBGA and CSPBGA case styles. PCB footprints and assembly processes remain unchanged.

Q: What is the significance of the product status difference?

A: The NXT4556UPZ is classified as obsolete, indicating that Nexperia USA Inc. no longer manufactures or supports this part. The NXT4556UPAZ carries an active product status, meaning it is currently manufactured and supported by the supplier. For new designs and long-term production, the active part is the appropriate selection.

Q: Do both parts meet the same regulatory compliance standards?

A: Both parts are ROHS3 compliant and REACH unaffected. The NXT4556UPAZ compliance certifications are not fully specified in available data, but both parts originate from the same manufacturer and product family.

Q: What is the data rate specification, and does it differ between parts?

A: Both the NXT4556UPZ and NXT4556UPAZ support a data rate of 5 Mbps. This specification is identical across both devices.

Q: Are there inventory considerations for these parts?

A: The NXT4556UPZ has 6968 pieces available as new original stock. The NXT4556UPAZ has 716 pieces available. Inventory levels should be evaluated against production volume requirements and lead time considerations.