TC74HC154AP
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, G1 and
G2 , are held low. When either strobe input is held high, the
decoding function is inhibited to keep all outputs high. The strobe
Weight: 1.50 g (typ.)
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: tpd = 15 ns (typ.) at VCC = 5 V
•
Low power dissipation: ICC = 4 μA (max) at Ta = 25°C
•
High noise immunity: VNIH = VNIL = 28% VCC (min)
•
Output drive capability: 10 LSTTL loads
•
•
Symmetrical output impedance: |IOH| = IOL = 4 mA (min)
∼
Balanced propagation delays: tpLH − tpHL
•
Wide operating voltage range: VCC (opr) = 2~6 V
•
Pin and function compatible with 74LS154
Pin Assignment
1
2007-10-01
