74ACT125
QUAD BUS BUFFERS (3-STATE)
PRELIMINARY DATA
May 1997
PIN CONNECTION AND IEC LOGIC SYMBOLS
n HIGH SPEED: t
PD
= 6.5 ns (TYP.) at V
CC
=5V
n LOW POWER DISSIPATION:
I
CC
=8µA (MAX.) at T
A
=25
o
C
n COMPATIBLE WITH TTL OUTPUTS
V
IH
=2V(MIN),V
IL
= 0.8V (MAX)
n 50Ω TRANSMISSION LINE DRIVING
CAPABILITY
n SYMMETRICAL OUTPUT IMPEDANCE:
|IOH|=IOL =24mA(MIN)
n BALANCED PROPAGATION DELAYS:
t
PLH
≅ t
PHL
n OPERATING VOLTAGE RANGE:
VCC (OPR) = 4.5V to 5.5V
n PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 125
n IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The ACT125 is an high-speed CMOS QUAD BUS
BUFFERS fabricated with sub-micron silicon gate
and double-layer metal wiring C
2
MOS
technology. It is ideal for low power applications
maintaining high speed operation similar to
equivalent Bipolar Schottky TTL.
These devices require the same 3-STATE control
input G to be taken high to make the output go in
to the high impedance state.
The device is designed to interface directly High
Speed CMOS systems with TTL, NMOS and
CMOS output voltage levels.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
ORDER CODES :
74ACT125B 74ACT125M
M
(Micro Package)
B
(Plastic Package)
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