TC7MH257FK Datasheet, PDF (1/7 Pages) Toshiba Semiconductor – Quad 2-Channel Multiplexer (3-State)

TC7MH257FK
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC7MH257FK
Quad 2-Channel Multiplexer (3-State)
The TC7MH257FK is an advanced high speed CMOS
multiplexer fabricated with silicon gate C²MOS technology.
It achieves the high speed operation similar to equivalent
bipolar schottky TTL while maintaining the CMOS low power
dissipation.
It is composed of four independent 2-channel multiplexers with
common SELECT and OUTPUTENABLE (OE).
If OE is set low, the outputs are held in a high-impedance state.
When SELECT is set low, “A” data inputs are enabled.
Conversely, when SELECT is high, “B” data inputs are
enabled.
An input protection circuit ensures that 0 to 5.5 V can be
applied to the input pins without regard to the supply voltage.
Weight: 0.02 g (typ.)
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: t_pd = 3.6 ns (typ.) (V_CC = 5 V)
• Low power dissipation: I_CC = 4 μA (max) (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)} = 2~5.5 V
• Low noise: V_OLP = 0.8 V (max)
• Pin and function compatible with 74ALS257
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2007-10-19