August 1996

High Speed Octal Buffer/Line Drivers

BLOCK DIAGRAM

1

GENERAL DESCRIPTION

The ML65541 and ML65L541 are non-inverting octal

buffer/line drivers. The high operating frequency (50MHz

driving a 50pF load) and low propagation delay

(ML65541 – 1.7 ns, ML65L541 – 2 ns) make them ideal

for very high speed applications such as processor bus

buffering and cache and main memory control.

These buffers use a unique analog implementation to

eliminate the delays inherent in traditional digital designs.

Schottky clamps reduce under and overshoot, and special

output driver circuits limit ground bounce. The ML65541

and ML65L541 conform to the pinout and functionality of

the industry standard FCT541 and are intended for

applications where propagation delay is critical to the

system design.

Note: This part was previously numbered ML6581.

FEATURES

s Low propagation delay — 1.7ns ML65541

2.0ns ML65L541

s Fast 8-bit TTL level buffer/line driver with three-state

capability on the output

s TTL compatible input and output levels

s Schottky diode clamps on all inputs to handle

undershoot and overshoot

s Onboard schottky diodes minimize noise

s Reduced output swing of 0 – 4.1 volts

s Ground bounce controlled outputs, typically less

than 400mV

s Industry standard FCT541 type pinout

s Applications include high speed cache memory, main

memory, processor bus buffering, and graphics cards

*This Part Is Obsolete

OE2

2

A0

18

B0

3

A1

17

B1

4

A2

16

B2

5

A3

15

B3

6

A4

14

B4

7

A5

13

B5

8

A6

12

B6

9

A7

11

B7

1

19

OE1

GND

10

VCC

20

VCC