STMicroelectronics 74VHCT257A
The 74VHCT257A is an advanced high-speed c CMOS quad 2 channel multiplexer (3-state) du fabricated with sub-micron silicon gate and ro double-layer metal wiring C2MOS technology. The VHCT257A is a non-inverting le multiplexer.- Min Voltage : 4.5V
- Max Voltage : 5.5V
- Channels : 4
- Max Operating Temp : 125°C
- Min Operating Temp : -55°C
Source:
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| Part No. | 74VHCT257A |
|---|---|
| Datasheet | 74VHCT257A Download |
| Manufacturer |  STMicroelectronics |
| Description | Quad 2-channel multiplexer |
| Buy | Stock & Price |
FEATURES
● High speed: tPD = 4.8 ns (typ.) at VCC = 5 V● Low power dissipation ICC = 4 μA (max.) at TA = 25 °C )
● Compatible with TTL outputs t(s VIH = 2 V (min.), VIL = 0.8 V (max.) c
● Power-down protection on inputs and outputs du
● Symmetrical output impedance ro |IOH| = IOL = 8 mA (min.) P
● Balanced propagation delays: tPLH ≅ tPHL te
● Operating voltage range: VCC(opr) = 4.5 to 5.5 V le
● Pin and function compatible with 74 series 257 so
● Improved latch-up immunity b
● Low noise: VOLP = 0.8 V (max.) ) - O
DESCRIPTION
t(s P It is composed of four independent 2 channel te multiplexers with common select and enable input (OE). The VHCT257A is a non-inverting le multiplexer. SO-16 Table 1. Order code Package SO-16 Tape and reel 74VHCT257AMTR When the enable input is held “high”, all outputs become high impedance state. If the select input is held “low”, “A” data is selected, when select input is “high”, “B” data is chosen. Power-down protection is provided on all inputs and outputs and 0 to 7 V can be accepted on inputs with no regard to the supply voltage.
