89HT0816PYABCI Signal Retimer Interface Equivalent & Substitute Parts

Part Overview

The 89HT0816PYABCI is a specialized signal retimer interface IC manufactured by Renesas Electronics Corporation in a 196-CABGA (15x15) package. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and production requirements. Signal retimer interfaces are critical for maintaining signal integrity in high-speed data transmission applications. The obsolete status of this part requires engineers to evaluate active substitute components that maintain compatibility with existing system designs.

Key Parameters

Parameter	Value
Manufacturer Part Number	89HT0816PYABCI
Manufacturer	Renesas Electronics Corporation
Category	Interface
Description	IC INTFACE SPECIALIZED 196CABGA
Package / Case	196-BGA
Supplier Device Package	196-CABGA (15x15)
Mounting Type	Surface Mount
Interface Type	I2C
Product Status	Obsolete
Applications	Signal Retimer
Moisture Sensitivity Level (MSL)	3 (168 Hours)
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitute parts for the 89HT0816PYABCI are identified based on the following critical parameters that determine functional equivalence:

Category: Interface IC
Interface Type: I2C or compatible serial communication protocols
Mounting Type: Surface Mount
Product Status: Active or Last Time Buy (ensuring availability)
RoHS Compliance: ROHS3 Compliant (modern regulatory requirement)
Moisture Sensitivity Level: 1–3 (168 Hours to Unlimited)
Applications: Signal Retimer, Ethernet Interface, Mobile Communications Interface, Cable Equalization, Address Translator, or Bus Switch functionality

The substitute parts listed below are grouped by their primary application and interface characteristics while maintaining compatibility with the electrical and mechanical requirements of the original component.

Parameter Comparison

Parameter	89HT0816PYABCI	DS110DF410SQE/NOPB	LM8325DGR8X-1/NOPB	LM96570SQ/NOPB	LMH1219RTWR	LTC4318CUF#TRPBF	MAX7349ATG+	PI4MSD5V9546AZYEX
Manufacturer	Renesas Electronics	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Analog Devices Inc.	Analog Devices Inc./Maxim	Diodes Incorporated
Category	Interface	Interface	Interface	Interface	Interface	Interface	Interface	Logic
Package / Case	196-BGA	48-WFQFN Exposed Pad	25-TFBGA, CSPBGA	32-WFQFN Exposed Pad	24-WFQFN Exposed Pad	20-WFQFN Exposed Pad	24-WFQFN Exposed Pad	16-WQFN Exposed Pad
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Interface Type	I2C	I2C	I2C	CMOS	Serial	I2C	I2C	N/A
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Last Time Buy
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	3 (168 Hours)	3 (168 Hours)	1 (Unlimited)	2 (1 Year)	3 (168 Hours)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Voltage - Supply	Not specified	2.375V ~ 2.625V	1.62V ~ 1.98V	1.71V ~ 1.89V	Not specified	2.25V ~ 5.5V	2.4V ~ 3.6V	1.65V ~ 5.5V
Applications	Signal Retimer	Ethernet	Mobile Communications	Ultrasound Imaging - Transmit Beamformer	Cable Equalization	Address Translator	Sound Cards, Players, Recorders	Bus Switch

Engineering Selection Recommendations

Selection of substitute parts for the obsolete 89HT0816PYABCI must prioritize the following criteria:

Product Status and Availability: All recommended substitute parts maintain Active status, ensuring long-term availability and supply chain stability. The PI4MSD5V9546AZYEX carries Last Time Buy status and should be evaluated only if other alternatives do not meet specific application requirements.

Regulatory Compliance: All substitute parts are ROHS3 Compliant, meeting current environmental and regulatory standards. The original 89HT0816PYABCI is RoHS non-compliant, making transition to compliant alternatives necessary for new designs and ongoing production support.

Moisture Sensitivity: Substitute parts offer MSL ratings of 1 (Unlimited) or 2 (1 Year), providing superior moisture protection compared to the original part's MSL 3 (168 Hours) rating. This improvement reduces handling and storage risks during manufacturing.

Interface Compatibility: Parts with I2C interface (DS110DF410SQE/NOPB, LM8325DGR8X-1/NOPB, LTC4318CUF#TRPBF, MAX7349ATG+) maintain direct protocol compatibility. Parts with alternative interfaces (LM96570SQ/NOPB with CMOS, LMH1219RTWR with Serial) require system-level evaluation for protocol adaptation.

Package Considerations: The original 196-CABGA (15x15) package is significantly larger than substitute packages. PCB redesign is required for any substitution. Smaller packages (16-TQFN to 48-WQFN) reduce board space and thermal footprint but necessitate layout modifications.

Frequently Asked Questions (FAQ)

Q: Why is the 89HT0816PYABCI obsolete, and what does this mean for my design?

A: Obsolete status indicates the manufacturer has discontinued production and support. Existing inventory may be limited or unavailable. Designs using this part must transition to active substitute components to ensure long-term supply chain viability and regulatory compliance.

Q: Can I use any of these substitute parts as a direct replacement without PCB modifications?

A: No. The original 89HT0816PYABCI uses a 196-CABGA (15x15) package, while all substitute parts use smaller packages (16-TQFN to 48-WQFN). PCB redesign, including footprint changes, trace routing, and thermal management adjustments, is required for any substitution.

Q: What is the difference between I2C and CMOS interface types in these substitutes?

A: I2C is a two-wire serial communication protocol (clock and data lines) commonly used for control and configuration. CMOS refers to the output logic level standard. LM96570SQ/NOPB uses CMOS interface and requires protocol-level evaluation to determine compatibility with I2C-based systems.

Q: Why do some substitute parts have better MSL ratings than the original?

A: Moisture Sensitivity Level (MSL) indicates how long a component can be exposed to moisture before soldering. Modern manufacturing processes and packaging materials have improved moisture resistance. Substitute parts with MSL 1 (Unlimited) offer superior protection during storage and handling compared to the original MSL 3 (168 Hours).

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 Compliant. The original 89HT0816PYABCI is RoHS non-compliant. Transition to compliant alternatives is necessary to meet current environmental regulations and customer requirements.

Q: What voltage supply ranges do these substitute parts support?

A: Voltage ranges vary by part. LTC4318CUF#TRPBF offers the widest range (2.25V ~ 5.5V), while LM96570SQ/NOPB operates at the lowest range (1.71V ~ 1.89V). System power supply specifications must be matched to the selected substitute part's voltage requirements.

Q: Which substitute part is most suitable for signal retiming applications?

A: DS110DF410SQE/NOPB is designed for Ethernet Interface applications and maintains I2C compatibility. LMH1219RTWR is optimized for Cable Equalization, which shares signal integrity requirements with retiming. Application-specific evaluation is required to determine the best fit for your signal retiming requirements.

Q: What is the difference between Last Time Buy and Active product status?

A: Active status indicates ongoing production and indefinite availability. Last Time Buy (PI4MSD5V9546AZYEX) indicates the manufacturer will produce the part for a limited time before discontinuation. Active parts are preferred for new designs; Last Time Buy parts should be considered only if other alternatives are unsuitable.

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