TC74VHCT573AF/AFT/AFK
2014-03-01
1
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74VHCT573AF, TC74VHCT573AFT, TC74VHCT573AFK
Octal D-Type Latch with 3-State Output
The TC74VHCT573A is an advanced high speed CMOS OCTAL
LATCH with 3-STATE OUTPUT fabricated with silicon gate
C
2
MOS 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.
The input voltage are compatible with TTL output voltage.
This device may be used as a level converter for interfacing 3.3
V to 5 V system.
Input protection and output circuit ensure that 0 to 5.5 V can
be applied to the input and output
(Note)
pins without regard to
the supply voltage. These structure prevents device destruction
due to mismatched supply and input/output voltages such as
battery back up, hot board insertion, etc.
Note: Output in off-state
Features
• High speed: t
pd
= 7.7 ns (typ.) at V
CC
= 5 V
• Low power dissipation: I
CC
= 4 μA (max) at Ta = 25°C
• Compatible with TTL inputs: V
IL
= 0.8 V (max)
V
IH
= 2.0 V (min)
• Power down protection is provided on all inputs and outputs.
• Balanced propagation delays: t
pLH
≈ t
pHL
• Low noise: V
OLP
= 1.5 V (max)
• Pin and function compatible with the 74 series
(74AC/HC/F/ALS/LS etc.) 573 type.
TC74VHCT573AF
TC74VHCT573AFT
TC74VHCT573AFK
Weight
SOP20-P-300-1.27A: 0.22 g (typ.)
TSSOP20-P-0044-0.65A: 0.08 g (typ.)
VSSOP20-P-0030-0.50: 0.03 g (typ.)
Start of commercial production
1995-12
