1/11August 2001
■ HIGH SPEED:
f
MAX
= 50MHz (TYP.) at V
CC
= 4.5V
■ LOW POWER DISSIPATION:
I
CC
= 4µA(MAX.) at T
A
=25°C
■ COMPATIBLE WITH TTL OUTPUTS :
V
IH
= 2V (MIN.) V
IL
= 0.8V (MAX)
■ SYMMETRICAL OUTPUT IMPEDANCE:
|I
OH
| = I
OL
= 6mA (MIN)
■ BALANCED PROPAGATION DELAYS:
t
PLH
≅ t
PHL
■ PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 574
DESCRIPTION
The M74HCT574 is an high speed CMOS OCTAL
D-TYPE FLIP FLOP WITH 3-STATE OUTPUTS
INVERTING fabricated with sub-micron silicon
gate C
2
MOS technology.
This 8 bit D-TYPE FLIP FLOP is 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 the logic state that were
setup at the D inputs.
While the OE
input is at low level, the eight outputs
will be in a normal logic state (high or low logic
level) and while OE
is in high level the outputs will
be in a high impedance state.
The output control does not affect the internal
operation of flip-flops; that is, the old data can be
retained or the new data can be entered even
while the outputs are off.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
M74HCT574
OCTAL D-TYPE FLIP FLOP
WITH 3 STATE OUTPUT NON INVERTING
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
PACKAGE TUBE T & R
DIP M74HCT574B1R
SOP M74HCT574M1R M74HCT574RM13TR
TSSOP M74HCT574TTR
TSSOPDIP SOP
Obsolete Product(s) - Obsolete Product(s)
