TC74VHC573F/FT/FK
TOSHIBA CMOS Digital Integrated Circuit
Silicon Monolithic
TC74VHC573F,TC74VHC573FT,TC74VHC573FK
Octal D-Type Latch with 3-State Output
The TC74VHC573 is an advanced high speed CMOS OCTAL
LATCH with 3-STATE OUTPUT fabricated with silicon gate
C2MOS technology.
It achieves the high speed operation similar to equivalent
Bipolar Schottky TTL while maintaining the CMOS low power
dissipation.
This 8-bit D-type latch is controlled by a latch enable input
(LE) and an output enable input (
OE
).
When the
OE
input is high, the eight outputs are in a high
impedance state.
An input protection circuit ensures that 0 to 5.5 V can be
applied to the input pins without regard to the supply voltage.
This device can be used to interface 5 V to 3 V systems and two
supply systems such as battery back up. This circuit prevents
device destruction due to mismatched supply and input voltages.
TC74VHC573F
TC74VHC573FT
Features
•
•
•
•
•
•
•
•
High speed: t
pd
= 4.5 ns (typ.) at V
CC
=
5 V
Low power dissipation: I
CC
=
4
μA
(max) at Ta
=
25°C
High noise immunity: V
NIH
=
V
NIL
=
28% V
CC
(min)
Power down protection is provided on all inputs.
Balanced propagation delays: t
pLH
∼
t
pHL
−
Wide operating voltage range: V
CC (opr)
=
2 to 5.5 V
Low noise: V
OLP
=
1.2 V (max)
Pin and function compatible with 74ALS573
TC74VHC573FK
Weight
SOP20-P-300-1.27A
TSSOP20-P-0044-0.65A
VSSOP20-P-0030-0.50
: 0.22 g (typ.)
: 0.08 g (typ.)
: 0.03 g (typ.)
1
2007-10-01
TOSHIBA [ TOSHIBA SEMICONDUCTOR ]
