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Contents

README

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551MLF

RENESAS · Clock Buffers, Drivers · SOIC-8

551MLF from RENESAS, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 ICLK input Clock input with an internal pull-up resistor.
2 Q1 output Non-inverting clock output 1, tri-stated when OE is low.
3 Q2 output Non-inverting clock output 2, tri-stated when OE is low.
4 Q3 output Non-inverting clock output 3, tri-stated when OE is low.
5 Q4 output Non-inverting clock output 4, tri-stated when OE is low.
6 GND power_in Connect to ground; the 0.01 µF decoupling capacitor between VDD (pin 7) and GND should be placed as close to the device as possible.
7 VDD power_in Connect to 3.3 V or 5.0 V (power supply voltage range is +3.0 V to +5.5 V measured with respect to GND).
8 OE input Output Enable input that tri-states the outputs when low, with an internal pull-up resistor.

Key specifications

Parameter Value
Manufacturer RENESAS
Package SOIC-8
Category Clock and Timing
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Operating Voltage VDD 3 3.6 V VDD=3.3 V ±10% 4
Input High Voltage, ICLK VIH 3.8 V VDD=3.3 V ±10%; Note 1 4
Input High Voltage, OE VIH 2 V VDD=3.3 V ±10% 4
Input Low Voltage, OE VIL 0.8 V VDD=3.3 V ±10% 4
Output High Voltage VOH 2.4 V VDD=3.3 V ±10%; IOH = -25 mA 4
Output Low Voltage VOL 0.4 V VDD=3.3 V ±10%; IOL = 25 mA 4
Operating Supply Current IDD 18 mA VDD=3.3 V ±10%; No load, 135 MHz 4
Short Circuit Current IOS -50 50 mA VDD=3.3 V ±10% 4
Operating Voltage VDD 4.5 5.5 V VDD = 5 V ±10% 4
Input High Voltage, ICLK VIH 5.5 V VDD = 5 V ±10%; Note 1 4
Operating Supply Current IDD 35 mA VDD = 5 V ±10%; No load, 135 MHz 4
Short Circuit Current IOS -80 80 mA VDD = 5 V ±10% 4
Input Frequency 0 160 MHz VDD = 3.3 V ±10% 5
Output Frequency 160 MHz VDD = 3.3 V ±10%; 15 pF load, Note 4 5
Output Clock Rise Time tOR 1 ns VDD = 3.3 V ±10%; 0.8 to 2.0 V 5
Output Clock Fall Time tOF 1 ns VDD = 3.3 V ±10%; 2.0 to 0.8 V 5
Propagation Delay 2 4 8 ns VDD = 3.3 V ±10%; Note 1; 135 MHz 5
Output to Output Skew 250 ps VDD = 3.3 V ±10%; Note 2; Rising edges at VDD/2 5
Input Frequency 0 135 MHz VDD = 5 V ±10% 5
Output Frequency 135 MHz VDD = 5 V ±10%; 15 pF load, Note 4 5
Propagation Delay 1.5 3 6 ns VDD = 5 V ±10%; Note 1; 135 MHz 5
Supply Voltage VDD 7 V 3
All Inputs and Outputs -0.5 V Relative to VDD+0.5 V upper limit 3
Ambient Operating Temperature, Commercial 0 70 °C Commercial grade (551MLF) 3
Storage Temperature -65 150 °C 3
Junction Temperature 125 °C 3
Soldering Temperature 260 °C 3
Power Supply Voltage 3 5.5 V Measured with respect to GND 3

CAD (KiCad official)

  • Symbol: 551MLF
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: 551mlf-etched.step / 551mlf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 551mlf.step / 551mlf.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: RENESAS datasheet (10 pp, sha256 802e91a02e0502bd, retrieved 2026-10-28, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF