ML65245 Datasheet, PDF (1/10 Pages) Micro Linear Corporation – High Speed Octal Buffer Transceivers

August 1996
ML65245**/ML65L245*
High Speed Octal Buffer Transceivers
GENERAL DESCRIPTION
The ML65245 and ML65L245 are non-inverting octal
transceivers. The high operating frequency (50MHz
driving a 50pF load) and low propagation delay
(ML65245 – 1.7ns, ML65L245 – 2ns) make them ideal for
very high speed applications such as processor bus
buffering and cache and main memory control.
These transceivers 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 ML65245
and ML65L245 conform to the pinout and functionality of
the industry standard FCT245 and are intended for
applications where propagation delay is critical to the
system design.
Note: This part was previously numbered ML6580.
FEATURES
s Low propagation delay — 1.7ns ML65245
2.0ns ML65L245
s Fast 8-bit TTL level transceiver 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 FCT245 type pinout
s Applications include high speed cache memory, main
memory, processor bus buffering, and graphics cards
** This Product Is End Of Life As Of August 1, 2000
* This Product Is Obsolete
BLOCK DIAGRAM
VCC _A0
A1
A2
A3
A4
A5
A6
A7
20
2
3
4
5
6
7
8
9
T/R 1
VCC
OE 19
10 18
17
16
15
14
13
12
11
GND B0
B1
B2
B3
B4
B5
B6
B7
1