|描述||Quad 2-Channel Multiplexer|
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74HC157AP/AF/AFN Quad 2-Channel Multiplexer
TC74HC158AP/AF/AFN Quad 2-Channel
The TC74HC157A and TC74HC158A are high speed CMOS
2-CHANNEL MULTIPLEXERs fabricated with silicon gate
They achieve the high speed operation similar to equivalent
LSTTL while maintaining the CMOS low power dissipation.
The TC74HC158A is an inverting multiplexer while the
TC74HC157A is a non-inverting.
When STROBE is held high, selection of data is inhibited and
all the outputs become low in the case of HC157A or high in the
case of HC158A.
The SELECT decoding determines whether the A or B inputs
get transferred to their corresponding Y ( Y ) outputs.
All inputs are equipped with protection circuits against static
discharge or transient excess voltage.
Note: xxxFN (JEDEC SOP) is not available in
• High speed: tpd = 10 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 to 6 V
• Pin and function compatible with 74LS157/158
: 1.00 g (typ.)
: 0.18 g (typ.)
: 0.13 g (typ.)
Package Dimensions (Note)
Note: This package is not available in Japan.
Weight: 0.13 g (typ.)
|下载||[ TC74HC157AP.PDF 数据手册 ]|
|TC74HC157AF||Quad 2-Channel Multiplexer|
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