August 1996
ML65244/ML65L244*
High Speed Dual Quad Buffer/Line Drivers
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
BLOCK DIAGRAM
*This Part Is Obsolete
VCC
20
VCC
2G 19
1G 1
YAO
18
BO
17
YA1
16
B1
15
YA2
14
B2
13
YA3
12
B3
11
10
GND
2
AO
3
YBO
4
A1
5
YB1
6
A2
7
YB2
8
A3
9
YB3
1
MICRO-LINEAR [ MICRO LINEAR CORPORATION ]
