August 1996

ML65244/ML65L244

*

High Speed Dual Quad Buffer/Line Drivers

BLOCK DIAGRAM

*This Part Is Obsolete

1

GENERAL DESCRIPTION

The ML65244 and ML65L244 are non-inverting dual quad

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

driving a 50pF load) and low propagation delay

(ML65244 – 1.7ns, ML65L244 – 2ns) 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 ML65244

and ML65L244 conform to the pinout and functionality of

the industry standard FCT244 and are intended for

applications where propagation delay is critical to the

system design.

Note: This part was previously numbered ML6582.

FEATURES

s Low propagation delay — 1.7ns ML65244

2.0ns ML65L244

s Fast Dual 4-bit TTL level buffer/line driver with tri-state

capability on the output (two 4-bit sections)

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 FCT244 type pinout

s Applications include high speed cache memory, main

memory, processor bus buffering, and graphics cards

1G

18

YAO

17

BO

16

YA1

15

B1

14

YA2

13

B2

12

YA3

11

B3

2

AO

3

YBO

4

A1

5

YB1

6

A2

7

YB2

8

A3

9

YB3

19

1

2G

GND

10

VCC

20

VCC