TC74HC154AP
2007-10-01
1
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74HC154AP
4-to-16 Line Decoder
The TC74HC154A is a high speed CMOS 4 to 16 LINE
DECODER/DEMULTIPLEXER fabricated with silicon gate
C2MOS technology.
It achieves the high speed operation similar to equivalent
LSTTL while maintaining the CMOS low power dissipation.
A binary code applied to the four inputs A thru D is decoded
within the device. Depending on the binary code, causes one of
sixteen outputs to go low, when both the strobe inputs,
1G
and
2G
, are held low. When either strobe input is held high, the
decoding function is inhibited to keep all outputs high. The strobe
function makes it easy to expand the decoding lines through
cascading, and simplifies the design of address decoding circuits
in a memory control system.
All inputs are equipped with protection circuits against static discharge or transient excess voltage.
Features
• High speed: t
pd
= 15 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)
• Output drive capability: 10 LSTTL loads
• Symmetrical output impedance: |I
OH
| = I
OL
= 4 mA (min)
• Balanced propagation delays: t
pLH
∼
−
t
pHL
• Wide operating voltage range: V
CC
(opr) = 2~6 V
• Pin and function compatible with 74LS154
Pin Assignment
Weight: 1.50 g (typ.)
