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Part Number: ML65541
Description: The ML65541 and ML65L541 are non-inverting octalbuffer/line drivers. The high operating frequency (50M...
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ML65541
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General Description
ML65541 General Description
The ML65541 and ML65L541 are non-inverting octalbuffer/line drivers. The high operating frequency (50MHzdriving a 50pF load) and low propagation delay(ML65541 1.7 ns, ML65L541 2 ns) make them idealfor very high speed applications such as processor busbuffering and cache and main memory control.
These buffers use a unique analog implementation toeliminate the delays inherent in traditional digital designs. Schottky clamps reduce under and overshoot, and specialoutput driver circuits limit ground bounce. The ML65541and ML65L541 conform to the pinout and functionality ofthe industry standard FCT541 and are intended forapplications where propagation delay is critical to thesystem design.
Note: This part was previously numbered ML6581.
ML65541 Maximum Ratings
VCC .............................................................. 0.3V to 7V
DC Input voltage ............................ 0.3V to VCC + 0.3V
AC Input voltage (< 20ns) ..................................... 3.0V
DC Output voltage .......................... 0.3V to VCC + 0.3V
Output sink current (per pin) ................................ 120mA
Storage temperature ............................... 65 to 150
Junction temperature ............................................. 150
Thermal Impedance (qJA)
SOIC ............................................................... 96/W
QSOP ............................................................ 100/W
DC Input voltage ............................ 0.3V to VCC + 0.3V
AC Input voltage (< 20ns) ..................................... 3.0V
DC Output voltage .......................... 0.3V to VCC + 0.3V
Output sink current (per pin) ................................ 120mA
Storage temperature ............................... 65 to 150
Junction temperature ............................................. 150
Thermal Impedance (qJA)
SOIC ............................................................... 96/W
QSOP ............................................................ 100/W
ML65541 Features
Low propagation delay - 1.7ns ML65541
2.0ns ML65L541
Fast 8-bit TTL level buffer/line driver with three-statecapability on the output
TTL compatible input and output levels
Schottky diode clamps on all inputs to handleundershoot and overshoot
Onboard schottky diodes minimize noise
Reduced output swing of 0 4.1 volts
Ground bounce controlled outputs, typically lessthan 400mV
Industry standard FCT541 type pinout
Applications include high speed cache memory, mainmemory, processor bus buffering, and graphics cards
ML65541 Typical Application
There are a wide variety of needs for extremely fast buffersin high speed processor system designs like Pentium,PowerPC, Mips, Sparc, Alpha and other RISC processors.These applications are either in the cache memory area orthe main memory (DRAM) area. In addition, fast buffersfind applications in high speed graphics and multimedia applications. The high capacitive loading due tomultiplexed address lines on the system bus demandexternal buffers to take up the excess drive current. Theneeded current to skew the transitions between rise andfall times must be done without adding excessivepropagation delay. The ML65244 and ML65L244 areequipped with Schottky diodes to clean up ringing fromovershoot and undershoot caused by reflections inunterminated board traces.
ML65541 Connection Diagram
ML65541
PDF/DataSheet Download
- Datasheet: ML65541
- File Size: 211480 KB
- Manufacturer: MICRO-LINEAR [Micro Linear Corporation]
- Click here to Download
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