MPC9449 Datasheet – Clock Fanout Buffer

Part Number : MPC9449

Function : 3.3 V/2.5 V 1:15 PECL/LVCMOS Clock Fanout Buffer

Package : 52-Lead Type

Manufacturers : Motorola, Renesas

Image :

MPC9449 datasheet

 

Description :

The MPC9449 is a 3.3 V or 2.5 V compatible, 1:15 clock fanout buffer targeted for high performance clock tree applications. With output frequencies up to 200 MHz and output skews less than 200 ps the device meets the needs of the most demanding clock applications.

Block Diagram

The MPC9449 is specifically designed to distribute LVCMOS compatible clock signals up to a frequency of 200 MHz. The device has 15 identical outputs, organized in four output banks. Each output bank provides a retimed or frequency divided copy of the input signal with a near zero skew. The output buffer supports driving of 50Ω terminated transmission lines on the incident edge: each output is capable of driving either one parallel terminated or two series terminated transmission lines.

Pinout

Features

• 15 LVCMOS compatible clock outputs
• Two selectable LVCMOS and one differential LVPECL compatible clock inputs
• Selectable output frequency divider (divide-by-one and divide-by-two)
• Maximum clock frequency of 200 MHz
• Maximum clock skew of 200 ps
• High-impedance output control

Other data sheets within the file : MPC-9449

MPC9449 Datasheet PDF Download


MPC9449 pdf

74HC541 Datasheet – Octal Bus Buffer – ST Microelectronics

Part Number : 74HC541, M74HC541, HC541

Description : 3-State Octal Bus Buffer

Package : DIP, SOP, TSSOP 20 Pin type

Manufactures : ST Microelectronics

Image

74HC541 Image

Description

The 74HC541 is an advanced high-speed CMOS OCTAL BUS BUFFER (3-STATE) fabricated with silicon gate C2MOS technology. The M74HC541 is a non inverting buffer. The 3-STATE control gate operates as a two input AND such that if either G1and G2are high, all eight output are in the high impedance state.

Pinout

74HC541 pinout

Features

1. High Speed : tPD = 9ns (TYP.) at VCC = 6V
2. LOW POWER DISSIPATION : ICC = 4µA(MAX.) at TA=25°C
3. HIGH NOISE IMMUNITY : VNIH = VNIL = 28 % VCC (MIN.)
4. SYMMETRICAL OUTPUT IMPEDANCE : |IOH| = IOL = 6mA (MIN)
5. BALANCED PROPAGATION DELAYS : tPLH ≅ tPHL
6. WIDE OPERATING VOLTAGE RANGE : VCC (OPR) = 2V to 6V
7. PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 541

Circuit Diagram

74HC541 Datasheet Circuit

74HC541 Datasheet

74HC541 pdf

 

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