TC74HC42AP
TC74HC42AP is BCD to Decimal Decoder manufactured by Toshiba.
TC74HC42AP/AF
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74HC42AP, TC74HC42AF
BCD to Decimal Decoder
The TC74HC42A is a high speed CMOS BCD-to-DECIMAL DECODER fabricated with silicon gate C2MOS technology.
It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation.
A BCD code applied to the four inputs (A-D) sets a low level at one of ten decoded outputs. A illegal BCD code such as eleven thru fifteen sets all outputs high. This device can be used as 3-to-8 LINE DECODER when input D is held low.
This device is useful for code conversion, address decoding, memory selection, multiplexing, or readout decoding.
All inputs are equipped with protection circuits against static discharge or transient excess voltage.
Features
- High speed: tpd = 13 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 m A (min)
- Balanced propagation delays: tp LH ∼- tp HL
- Wide operating voltage range: VCC (opr) = 2 to 6 V
- Pin and function patible with 74LS42
Pin Assignment
TC74HC42AP TC74HC42AF
Weight DIP16-P-300-2.54A SOP16-P-300-1.27A
: 1.00 g (typ.) : 0.18 g (typ.)
Start of mercial production
1987-11
2014-03-01
IEC Logic Symbol
TC74HC42AP/AF
Truth Table
Code
BCD...