PL123-09NSC-R

Clock Buffers, Drivers Overview

The PL123-09NSC-R is a low-skew fanout buffer manufactured by Microchip Technology, originally designed by Micrel Inc. It provides a 1:9 output fanout for clock signals ranging from DC to 134MHz. The device operates within a supply voltage range of 1.62V to 3.63V and supports an industrial temperature range of -40°C to 85°C. Key electrical characteristics include a maximum propagation delay of 9.2ns and output-to-output skew of less than 250ps. It is housed in a 16-pin SOP package with a Tape & Reel suffix indicating reel packaging.

Clock Buffers, Drivers Feature Summary

• Provides 1:9 fanout distribution for high-speed clocks up to 134MHz
• Low additive phase jitter of 60fs RMS at 100MHz
• Output-to-output skew guaranteed at less than 250ps
• Operates on 2.5V to 3.3V supplies, or 1.8V up to 67MHz

Clock Buffers, Drivers Applications

• Driving SDRAM DIMMs in PC systems
• Distributing low-noise CMOS clock oscillators
• Providing feedback to PLLs in memory subsystems

Clock Buffers, Drivers Procurement Notes

Verify the 'R' suffix confirms tape and reel packaging rather than tube. Confirm the 'SC' designation aligns with the commercial temperature grade (0°C to 70°C) if that specific range is required, noting the datasheet also lists an Industrial (-40°C to 85°C) option. Ensure the 16-pin SOP form factor matches the PCB footprint requirements.

Clock Buffers, Drivers Selection Notes

Select this component when a single clock source must drive nine distinct loads with minimal skew. Consider the PL123-05N variant if only five outputs are needed. Verify load capacitance limits; the device supports up to 30pF below 100MHz but requires 10pF or less above 100MHz. Ensure input signals do not exceed 5V tolerance as the part is not 5V tolerant.

Clock Buffers, Drivers Part Context

This part belongs to the PL123 family of low-cost fanout buffers. The PL123-09N specifically handles nine outputs, whereas the PL123-05N handles five. Both share similar electrical specifications regarding power consumption and noise performance. The PL123-09NSC-R is the specific ordering code for the 16-pin SOP version in a reel format.

Clock Buffers, Drivers Replacement Considerations

Public confirmed substitute part numbers include Renesas 2309-1HDCG, Renesas 2309A-1DCG, and onsemi NB2309AI1DR2G.