PI6C2408-1LE Equivalent & Substitute Parts

Part Overview

The PI6C2408-1LE is a Zero Delay Buffer IC manufactured by Diodes Incorporated, designed for clock and timing applications requiring high-speed signal distribution. This device operates at a maximum frequency of 140MHz with a 1:8 input-to-output ratio and TTL-level signaling. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

PI6C2408-1LE

Diodes IncorporatedIn Stock: 1021PI6C2408-1LE Datasheet

Current PartRFQ

CDCVF25084PW

Texas InstrumentsIn Stock: 1512CDCVF25084PW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PI6C2408-1LE is determined by the following critical parameters:

Package Compatibility: Both the main part and substitute must use the 16-TSSOP (0.173", 4.40mm Width) surface mount package to ensure PCB-level compatibility without layout modifications.

Supply Voltage Range: The substitute must operate within the 3V to 3.6V supply voltage window to function in existing power distribution networks.

Signal Level Compatibility: The substitute must support TTL or LVTTL input and output signaling to maintain signal integrity with connected logic circuits.

PLL and Bypass Capability: The substitute must include PLL functionality with bypass mode to preserve the zero-delay buffering characteristic and operational flexibility of the original design.

Frequency Performance: The substitute frequency rating must meet or exceed the maximum operating frequency requirement of the application.

The CDCVF25084PW from Texas Instruments satisfies all substitution criteria while offering enhanced frequency performance (180MHz) and extended operating temperature range (-40°C to 85°C).

Parameter Comparison

Engineering Selection Recommendations

The CDCVF25084PW is suitable as a substitute for the PI6C2408-1LE based on the following factors:

Package Equivalence: Both devices use identical 16-TSSOP surface mount packaging, eliminating PCB redesign requirements.

Electrical Compatibility: Supply voltage ranges are identical (3V to 3.6V), and both devices support PLL with bypass functionality. LVTTL signaling is compatible with TTL-level circuits in most applications.

Compliance Status: Both parts are ROHS3 compliant and carry unlimited MSL ratings, meeting current manufacturing and environmental standards.

Product Availability: The CDCVF25084PW is in active production status, ensuring long-term availability and supply chain stability compared to the obsolete PI6C2408-1LE.

Performance Enhancement: The substitute offers higher maximum frequency (180MHz versus 140MHz) and extended operating temperature range (-40°C to 85°C versus 0°C to 70°C), providing design margin for demanding applications.

Frequently Asked Questions (FAQ)

Q: Can the CDCVF25084PW directly replace the PI6C2408-1LE without PCB modifications?

A: Yes. Both devices use the 16-TSSOP package with identical pin spacing and dimensions (0.173", 4.40mm width). No PCB layout changes are required for physical substitution.

Q: Are there signal level compatibility concerns between TTL and LVTTL?

A: LVTTL output levels are compatible with TTL input thresholds in standard logic applications. However, verify that receiving circuits can accept LVTTL voltage levels (typically 0V to 3.3V) if operating at the lower supply voltage boundary.

Q: What is the functional difference between the 1:8 and 2:8 input-to-output ratios?

A: The PI6C2408-1LE provides one input signal distributed to eight outputs. The CDCVF25084PW accepts two input signals and distributes them to eight outputs total. Application requirements determine which ratio is appropriate.

Q: Does the extended operating temperature range of the CDCVF25084PW affect compatibility?

A: The extended range (-40°C to 85°C versus 0°C to 70°C) is a superset of the original specification. Applications operating within the original temperature window will function identically. Applications requiring extended temperature operation benefit from the wider range.

Q: Are both parts RoHS compliant?

A: Yes. Both the PI6C2408-1LE and CDCVF25084PW are ROHS3 compliant with unlimited moisture sensitivity levels, meeting current environmental and manufacturing standards.

Q: What is the significance of the PLL with Bypass feature?

A: This feature allows the device to operate in two modes: PLL mode for frequency multiplication or phase locking, and bypass mode for direct signal buffering. Both devices support this dual-mode operation.