Equivalent & Substitute Parts for 23S08-2HDCGI

Part Overview

The 23S08-2HDCGI is a Clock Multiplier, Zero Delay Buffer IC manufactured by Renesas Electronics Corporation. This device operates at a maximum frequency of 133.3MHz with a 1:8 input-to-output ratio and is packaged in a 16-SOIC form factor. The product is classified as obsolete, making identification of functionally equivalent substitute components necessary for ongoing system support and new design implementations.

Key Parameters

Parameter	23S08-2HDCGI
Manufacturer	Renesas Electronics Corporation
Category	Clock/Timing
Type	Clock Multiplier, Zero Delay Buffer
Package / Case	16-SOIC (0.154", 3.90mm Width)
Frequency - Max	133.3MHz
Ratio - Input:Output	1:8
Input Type	LVTTL
Output Type	CMOS, LVTTL
Voltage - Supply	3V ~ 3.6V
Operating Temperature	-40°C ~ 85°C
PLL	Yes with Bypass
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the 23S08-2HDCGI are selected based on the following critical parameters that determine functional equivalence:

Primary Substitution Criteria:

Package compatibility: 16-SOIC form factor
Supply voltage range: 3V ~ 3.6V
Operating temperature range: -40°C ~ 85°C
Input signal type: LVTTL
Output signal type: LVTTL or CMOS
PLL with bypass capability
RoHS3 compliance
Surface mount technology

The substitute parts listed below meet these core electrical and mechanical requirements, enabling direct replacement in applications designed for the 23S08-2HDCGI.

Parameter Comparison

Parameter	23S08-2HDCGI	CDCVF25081D	CDCVF25081DR	8T49N240-998NLGI
Manufacturer	Renesas Electronics	Texas Instruments	Texas Instruments	Renesas Electronics
Type	Clock Multiplier, Zero Delay Buffer	PLL Clock Driver	PLL Clock Driver	Jitter Attenuator
Package / Case	16-SOIC	16-SOIC	16-SOIC	40-VFQFN Exposed Pad
Frequency - Max	133.3MHz	200MHz	200MHz	867MHz
Input Type	LVTTL	LVTTL	LVTTL	LVCMOS, LVDS, LVHSTL, LVPECL, Crystal
Output Type	CMOS, LVTTL	LVTTL	LVTTL	HCSL, LVCMOS, LVDS, LVPECL
Voltage - Supply	3V ~ 3.6V	3V ~ 3.6V	3V ~ 3.6V	1.71V ~ 3.465V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
PLL	Yes with Bypass	Yes with Bypass	Yes with Bypass	Yes
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active

Engineering Selection Recommendations

CDCVF25081D and CDCVF25081DR (Texas Instruments)

These PLL Clock Driver ICs provide the closest functional match to the 23S08-2HDCGI. Both parts maintain identical electrical specifications including 3V ~ 3.6V supply voltage, -40°C ~ 85°C operating temperature range, LVTTL input/output compatibility, and 16-SOIC packaging. The primary difference between CDCVF25081D and CDCVF25081DR is packaging format: CDCVF25081D is supplied in tube packaging, while CDCVF25081DR is supplied in cut tape and Digi-Reel format. Both are active products with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), providing superior long-term availability compared to the obsolete 23S08-2HDCGI.

8T49N240-998NLGI (Renesas Electronics Corporation)

This Jitter Attenuator IC from Renesas offers extended frequency capability (867MHz maximum) and broader input/output signal compatibility. While the 40-VFQFN package differs from the 16-SOIC form factor of the original part, this substitute provides active product status and ROHS3 compliance. The supply voltage range (1.71V ~ 3.465V) encompasses the 3V ~ 3.6V requirement of the 23S08-2HDCGI. This option is suitable for applications where package footprint redesign is feasible and enhanced frequency performance is beneficial.

Frequently Asked Questions (FAQ)

Q: Can CDCVF25081D and CDCVF25081DR be used interchangeably with the 23S08-2HDCGI?

A: Yes. Both Texas Instruments parts maintain identical electrical specifications and 16-SOIC packaging. The difference between them is packaging format only: CDCVF25081D uses tube packaging while CDCVF25081DR uses cut tape and Digi-Reel format. Selection depends on your procurement and assembly requirements.

Q: What is the primary advantage of using CDCVF25081D or CDCVF25081DR over the 23S08-2HDCGI?

A: Both substitute parts are active products with confirmed long-term availability, whereas the 23S08-2HDCGI is obsolete. Additionally, both offer higher maximum frequency (200MHz versus 133.3MHz) and superior moisture sensitivity rating (MSL 1 unlimited versus MSL 3).

Q: Is the 8T49N240-998NLGI a direct replacement for the 23S08-2HDCGI?

A: The 8T49N240-998NLGI is functionally equivalent in terms of electrical operation and compliance standards, but requires PCB layout redesign due to different packaging (40-VFQFN versus 16-SOIC). This substitute is appropriate when design modifications are acceptable and extended frequency performance is advantageous.

Q: Do all substitute parts meet the same compliance requirements as the 23S08-2HDCGI?

A: Yes. All listed substitute parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99, matching the compliance profile of the original part.

Q: What supply voltage range do the substitute parts support?

A: CDCVF25081D and CDCVF25081DR support 3V ~ 3.6V, identical to the 23S08-2HDCGI. The 8T49N240-998NLGI supports 1.71V ~ 3.465V, which encompasses the original specification.

Q: Are there packaging considerations when selecting a substitute?

A: Yes. CDCVF25081D and CDCVF25081DR maintain the 16-SOIC package, enabling direct PCB replacement. The 8T49N240-998NLGI uses 40-VFQFN packaging and requires PCB redesign. Verify your assembly equipment compatibility with the selected package format.

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