551MILFT

End of Life In Stock · 24-48h Dispatch

Renesas Electronics · ClockBlocks™ Series · Clock & Timing ICs

Renesas ClockBlocks™ 551MILFT, Fanout Buffer (Distribution), 1:4 CMOS fanout, 160 MHz max, 3V to 5.5V supply, 8-SOIC package, -40°C to 85°C.

Renesas Electronics 551MILFT — Clock & Timing ICs
RoHS Compliant · Lead-Free EIA-481 Standard Tape & Reel

Key Specifications

All 13 Specs
Package / Case
8-SOIC
Mounting Type
Surface Mount
Operating Temp
-40°C ~ 85°C
Packaging Format
Tape & Reel (TR); Cut Tape (CT)
Supply Voltage
3V ~ 5.5V
Speed / Frequency
160 MHz
Type
Fanout Buffer (Distribution)
Input
CMOS
In Stock: 41 pcs
MOQ: 1
Logistics: Shenzhen / HK Dispatch · DHL / FedEx DAP (3-7d) · Russia & CIS DDP
SWIFT T/T
$1.92 / pc (USD)
● Direct Purchase Ready
Volume Pricing Breaks per unit (USD)
1+ pcs
$1.92
10+ pcs
$1.62
30+ pcs
$1.44
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Full Technical Specifications

13 Parameters
551MILFT specifications
Parameter / AttributeSpecification / Value
TypeFanout Buffer (Distribution)
SeriesClockBlocks™
MountingSurface Mount
Supply voltage3V ~ 5.5V
Frequency - max160 MHz
Operating temperature-40°C ~ 85°C
InputCMOS
OutputCMOS
PackageTape & Reel (TR); Cut Tape (CT)
Case8-SOIC (0.154\", 3.90mm Width)
Number of circuits1
Ratio - Input:Output1:4
Differential - Input:OutputNo/No
Series Sibling Variants

Renesas Electronics ClockBlocks™ Series Models

Sibling variants, package options, and speed/density grades in this Renesas Electronics semiconductor series. Active Shenzhen warehouse allocation and rapid 24-48h dispatch.

Technical Details & Description

160 MHz CMOS fanout buffer for clock distribution

The Renesas 551MILFT is a single-circuit, 1:4 fanout buffer from the ClockBlocks™ family. It takes one CMOS input and delivers four CMOS outputs, with a maximum frequency of 160 MHz. The supply voltage range of 3V to 5.5V lets it sit on either a 3.3V or 5V rail without a level shifter. The non-differential I/O (CMOS in, CMOS out) makes it a straight drop-in for single-ended clock trees in industrial control, telecom, and data-acquisition systems where you need to distribute a reference clock to multiple loads without loading the source.

Industrial temperature range and package

The 8-SOIC package (0.154" body width, 3.90 mm) is a standard footprint that routes easily on two-layer boards. Surface-mount assembly with no exposed pad means no thermal-via planning; just standard decoupling at the supply pin.

Store the reels dry — standard MSL handling applies, though the specific level is not listed here.

Frequently asked questions

What is the closest functional second-source for 551MILFT?

A close functional peer is the 5PB1104CMGK/W, also a 1:4 clock buffer with LVCMOS outputs, but it operates at a lower supply voltage (1.71 V typical) and a higher maximum frequency (200 MHz). The 551MILFT's wider 3V-to-5.5V supply range makes it a better fit for legacy 5V logic systems, while the 5PB1104 targets lower-voltage, higher-speed designs. Verify pin-compatibility and timing margins before substituting.

551MILFT
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