TC74VHC574F/FT/FK
2014-03-01
1
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74VHC574F, TC74VHC574FT, TC74VHC574FK
Octal D-Type Flip Flop with 3-State Output
The TC74VHC574 is advanced high speed CMOS OCTAL
FLIP-FLOP 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 flip-flop is controlled by a clock input (CK)
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.
Features
• High speed: f
max
= 180 MHz (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
= 1.0 V (max)
• Pin and function compatible with 74ALS574
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.)
TC74VHC574F
TC74VHC574FT
TC74VHC574FK
Start of commercial production
1991-11
