8344BYLFT

Specifications

Temperature C Voltage 3.3 V Package TQFP 48 Speed NA Output Style Core Supply Voltage (VDD) No. of Outputs Min. Output Frequency Min. Input Frequency Output Supply Voltage (VDDO) No. of Inputs Input Style Max. Output Frequency Max. Input Frequency Temp. Grade


Description

24 LVCMOS OUT BUFFER
ICS8344 Features

• 24 LVCMOS outputs, 7W typical output impedance
• Selectable differential clock input pairs for redundant clock applications
• CLKx, nCLKx pairs can accept the following differential input levels: LVDS, LVPECL, LVHSTL, SSTL, HCSL
• Maximum output frequency: 167MHz
• Translates any differential input signal (LVPECL, LVHSTL, LVDS) to LVCMOS without external bias networks
• Translates any single-ended input signal to LVCMOS with resistor bias on nCLK input
• Multiple output enable pins for disabling unused outputs in reduced fanout applications
• Output skew: 275ps (maximum)
• Part-to-part skew: 600ps (maximum)
• Bank skew: 150ps (maximum)
• Propagation Delay: 4.3ns (maximum)
• 3.3V, 2.5V or mixed 3.3V, 2.5V operating supply modes
• 0°C to 70°C ambient operating temperature
• Industrial version available as ICS8344I

Description
The ICS8344 is a low voltage, low skew, 1-to-24 Differential-to-LVCMOS Fanout Buffer and a member of the HiPerClockS? family of High Performance Clock Solutions from IDT. The ICS8344 is designed to translate any differential signal levels to LVCMOS levels. The low impedance LVCMOS outputs are designed to drive 50W series or parallel terminated transmission lines. The effective fanout can be increased to 48 by utilizing the ability of the outputs to drive two series terminated lines. Redundant clock applications can make use of the dual clock input. The dual clock inputs also facilitate board level testing. ICS8344 is characterized at full 3.3V, full 2.5V and mixed 3.3V input and 2.5V output operating supply modes.

Guaranteed output and part-to-part skew characteristics make the ICS8344 ideal for those clock distribution applications demanding well defined performance and repeatability.