8536CGI-33LF Clock Fanout Buffer Equivalent & Substitute Parts

Part Overview

The 8536CGI-33LF is a Clock Fanout Buffer (Distribution), Multiplexer IC manufactured by Renesas Electronics Corporation. This device functions as a 2:6 clock distribution buffer with a maximum frequency of 266 MHz, designed for surface mount applications in 20-TSSOP packaging. The part is classified as Obsolete, making identification of suitable substitute components necessary for ongoing system support and new design implementations where this device is specified.

Substiute Parts

8536CGI-33LF

Renesas Electronics CorporationIn Stock: 24248536CGI-33LF Datasheet

Current PartRFQ

5P83905PGGK

Renesas Electronics CorporationIn Stock: 11345P83905PGGK Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 8536CGI-33LF is determined by the following critical parameters:

• Input/Output Ratio: The 2:6 configuration (2 inputs, 6 outputs) defines the distribution capability
• Maximum Frequency: 266 MHz operational ceiling for clock distribution
• Supply Voltage Range: 2.375V ~ 3.465V compatibility window
• Input/Output Signal Types: LVCMOS, LVTTL, Crystal inputs with LVCMOS, LVPECL outputs
• Package Type: 20-TSSOP surface mount form factor
• Operating Temperature Range: -40°C ~ 85°C specification

The identified substitute part, 5P83905PGGK, differs in input/output ratio (1:6 vs. 2:6), maximum frequency (200 MHz vs. 266 MHz), package size (16-TSSOP vs. 20-TSSOP), and signal type support. These differences require engineering evaluation for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The 5P83905PGGK is an Active product from Renesas Electronics Corporation, providing ongoing manufacturing support and availability compared to the Obsolete 8536CGI-33LF. Both components maintain ROHS3 compliance and MSL Level 1 ratings, ensuring equivalent environmental and regulatory standing.

Selection of the 5P83905PGGK requires verification that the application can accommodate the following parameter differences: reduced input/output ratio (1:6 vs. 2:6), lower maximum frequency (200 MHz vs. 266 MHz), restricted input signal type support (Crystal only vs. LVCMOS, LVTTL, Crystal), and reduced output signal type support (LVCMOS only vs. LVCMOS, LVPECL). The substitute part offers extended operating temperature range (-40°C ~ 105°C vs. -40°C ~ 85°C) and lower minimum supply voltage (1.71V vs. 2.375V).

Frequently Asked Questions (FAQ)

Q: Can the 5P83905PGGK directly replace the 8536CGI-33LF in existing designs?

A: Direct replacement requires application-level compatibility verification. The substitute part has a different input/output ratio (1:6 vs. 2:6), lower maximum frequency (200 MHz vs. 266 MHz), and different signal type support. PCB layout modifications may be necessary due to package size difference (16-TSSOP vs. 20-TSSOP).

Q: What are the key differences in signal compatibility?

A: The 8536CGI-33LF accepts LVCMOS, LVTTL, and Crystal inputs with LVCMOS and LVPECL outputs. The 5P83905PGGK accepts Crystal inputs only with LVCMOS outputs. Applications requiring LVTTL or LVPECL signal support cannot use the substitute without additional signal conditioning circuitry.

Q: Does the package size difference affect PCB compatibility?

A: Yes. The 8536CGI-33LF uses 20-TSSOP packaging while the 5P83905PGGK uses 16-TSSOP packaging. Both maintain the same 0.173" width, but pin count and footprint differ. PCB redesign is required for substitution.

Q: Are both parts compliant with current environmental standards?

A: Both the 8536CGI-33LF and 5P83905PGGK are ROHS3 compliant with MSL Level 1 ratings, meeting current environmental and moisture sensitivity requirements.

Q: What is the frequency limitation impact of using the 5P83905PGGK?

A: The substitute part operates at a maximum frequency of 200 MHz compared to the main part's 266 MHz. Applications requiring clock distribution above 200 MHz cannot use this substitute.