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Renesas Electronics 2305B-1DCG — Analog & Data Acquisition
Renesas Electronics

2305B-1DCG Zero Delay Buffer, 133 MHz, 8-SOIC, Active

MPN2305B-1DCG
End of Life

Renesas 2305B-1DCG Zero Delay Buffer, PLL Yes with Bypass, Input LVTTL, Output CMOS/LVCMOS/TTL, 1 Circuit, 1:5 Input:Output, 133MHz Max, 8-SOIC (0.154", 3.90mm Width), Surface Mount, 0°C ~ 70°C, Tube, ROHS3 Compliant, Active.

$1.2Ref. price · indicative, final on quote
2305B-1DCG datasheet
Packaging8-SOIC (0.154", 3.90mm Width)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

2305B-1DCG Technical Specifications
ParameterValue
TypeZero Delay Buffer
Mounting typeSurface Mount
Voltage3V ~ 3.6V
Frequency133MHz
Operating temperature0°C ~ 70°C
PLLYes with Bypass
InputLVTTL
OutputCMOS, LVCMOS, TTL
PackageTube
Case8-SOIC (0.154\", 3.90mm Width)
Divider (Multiplier)No/No
Number of circuits1
Ratio - Input:Output1:5
Differential - Input:OutputNo/No

Product details

What this zero delay buffer does on your clock tree

The Renesas 2305B-1DCG is a zero delay buffer — a PLL-based clock fanout chip that takes one LVTTL input and delivers five synchronized outputs at CMOS, LVCMOS, or TTL levels. The internal PLL can be bypassed, letting the part act as a simple fanout buffer when you don't need the phase alignment. Maximum output frequency is 133 MHz, which covers most PCI, Ethernet, and general-purpose logic clock domains. The 1:5 ratio means one clock source drives up to five loads without external fanout trees or additional buffers.

Package and footprint

Housed in an 8-pin SOIC (0.154" body width, 3.90 mm), surface-mount. The supplier device package is 8-SOIC. Standard SOIC-8 land pattern; no surprises for the PCB layout. Ships in tube — if your pick-and-place expects tape, verify the reel option with your distributor.

Lifecycle and sourcing reality

The 2305B-1DCG carries an Active product status and is ROHS3 compliant.

Frequently asked questions

What package is 2305B-1DCG available in?

It comes in an 8-pin SOIC package with a 0.154" body width (3.90 mm), surface-mount. The supplier device package is 8-SOIC.

What is a zero delay buffer?

A zero delay buffer is a clock distribution IC that uses a PLL to align the phase of its output clocks with the input clock, effectively eliminating propagation delay. The 2305B-1DCG includes a PLL that can be bypassed, allowing it to function as a simple fanout buffer when phase alignment is not needed.

How does a zero delay buffer differ from a PLL?

A PLL is a general-purpose frequency synthesis and phase-locking circuit. A zero delay buffer is a specific application of a PLL — it takes one input clock and produces multiple output clocks that are phase-aligned (zero delay) with the input. The 2305B-1DCG integrates a PLL that can be bypassed, so it can serve either role.