®
74ACT574
OCTAL D-TYPE FLIP FLOP
WITH 3 STATE OUTPUT NON INVERTING
s
s
s
s
s
s
s
s
s
HIGH SPEED:
f
MAX
= 250 MHz (TYP.) at V
CC
= 3.3V
LOW POWER DISSIPATION:
I
CC
= 8
µ
A (MAX.) at T
A
= 25
o
C
COMPATIBLE WITH TTL OUTPUTS
V
IH
= 2V (MIN), V
IL
= 0.8V (MAX)
50
Ω
TRANSMISSION LINE DRIVING
CAPABILITY
SYMMETRICAL OUTPUT IMPEDANCE:
|I
OH
| = I
OL
= 24 mA (MIN)
BALANCED PROPAGATION DELAYS:
t
PLH
≅
t
PHL
OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 4.5V to 5.5V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 574
IMPROVED LATCH-UP IMMUNITY
DIP
PACKAGE
DIP
SOP
TSSOP
SOP
ORDER CODES
T UBE
M74ACT574B
M74ACT574M
TSSOP
T& R
M74ACT574MTR
M74ACT574TTR
DESCRIPTION
The ACT574 is an advanced high-speed CMOS
OCTAL D-TYPE FLIP FLOP with 3 STATE
OUTPUT NON INVERTING fabricated with
sub-micron silicon gate and double-layer metal
wiring C
2
MOS technology.
These 8 bit D-Type flip-flops are controlled by a
clock input (CK) and an output enable input (OE).
On the positive transition of the clock, the Q
outputs will be set to logic state that were setup
at the D inputs.
PIN CONNECTION AND IEC LOGIC SYMBOLS
While the (OE) input is low, the 8 outputs will be
in a normal logic state (high or low logic level)
and while high level the outputs will be in a high
impedance state.
The output control does not affect the internal
operation of flip flop; that is, the old data can be
retained or the new data can be entered even
while the outputs are off.
The device is designed to interface directly High
Speed CMOS system with TTL and NMOS
components.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
February 2000
1/11
STMICROELECTRONICS [ STMICROELECTRONICS ]
