ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC CLK BUFFER 2:18 250MHZ 32TQFP
- Series：-
- Package：Tray
- Mfr：Renesas Electronics Corporation
- Type：Fanout Buffer (Distribution), Multiplexer
- Number of Circuits：1
- Ratio - Input:Output：2:18
- Differential - Input:Output：Yes/No
- Input：CML, LVCMOS, LVPECL, LVTTL, SSTL
- Output：LVCMOS, LVTTL
- Frequency - Max：250 MHz
- Voltage - Supply：2.375V ~ 3.465V
- Operating Temperature：0°C ~ 70°C
- Mounting Type：Surface Mount
- Package / Case：32-LQFP
- Supplier Device Package：32-TQFP (7x7)
Download product information
Overview
The Renesas Electronics Corporation 83940DY-01LF is a clock buffer component belonging to the 83940-01 series. It functions as an 18-output LVCMOS buffer designed for clock distribution applications. The device is characterized by low skew performance and selectable input configurations, supporting LVPECL, CML, or SSTL levels on primary inputs and LVCMOS/LVTTL on secondary inputs. It operates across full 3.3V, full 2.5V, and mixed voltage modes. The part is currently listed as discontinued with limited supply availability.
Feature Summary
- Eighteen LVCMOS/LVTTL outputs with typical 16Ω output impedance
- Selectable clock inputs: PCLK/nPCLK pair accepts LVPECL, CML, or SSTL; LVCMOS_CLK accepts LVCMOS or LVTTL
- Low skew characteristics ensuring well-defined performance and repeatability
- Supports 3.3V, 2.5V, and mixed input/output operating supply modes
Applications
- Clock distribution systems requiring defined skew performance
- LVPECL-to-LVCMOS/LVTTL fanout buffering
- Applications demanding high repeatability in clock signal routing
Procurement Notes
This component is officially discontinued by Renesas Electronics. Supply is restricted, and Mouser reports no sales in certain regions. Verification of current stock status through authorized distributors is required before procurement planning.
Selection Notes
Select this part only if legacy compatibility with the ICS83940 family is necessary. Verify that the 18-output LVCMOS configuration matches the target design requirements. Confirm that the available package options meet the board layout constraints.
Part Context
The 83940DY-01LF is part of the IDT/Renesas 83940 series, originally developed by Integrated Device Technology (IDT) before its acquisition by Renesas. It serves as a direct replacement for earlier ICS83940 variants in existing designs.
Replacement Considerations
Publicly confirmed substitute part numbers are not provided in the source data. Designers should consult Renesas technical support for validated cross-references due to the discontinued status.
