Quad 2-input multiplexer with 5 Volt tolerant 74LVC257A
inputs/outputs (3-State)
FEATURES
• Wide supply voltage range of 1.2 to 3.6 V
• In accordance with JEDEC standard no. 8-1A
• CMOS lower power consumption
• Direct interface with TTL levels
• Output drive capability 50 transmission lines at 85°C
• 5 Volt tolerant inputs/outputs, for interfacing with 5 Volt logic
DESCRIPTION
The 74LVC257A is a high-performance, low-power, low-voltage,
Si-gate CMOS device and superior to most advanced CMOS
compatible TTL families.
Inputs can be driven from either 3.3V or 5.0V devices. In 3-State
operation, outputs can handle 5V. This feature allows the use of
these devices as translators in a mixed 3.3V/5V environment.
The 74LVC257A is a quad 2-input multiplexer with 3-state outputs,
which select 4 bits of data from two sources and are controlled by a
common data select input (S). The data inputs from source 0 (1l0 to
4l0) are selected when input S is LOW and the data inputs from
source 1 (1l1 to 4l1) are selected when S in HIGH. Data appears at the
outputs (1Y to 4Y) in true (non-inverting) form from the selected inputs.
The 74LVC257A is the logic implementation of a 4-pole, 2-position
switch, where the position of the switch is determined by the logic
levels applied to S. The outputs are forced to a high impedance
OFF-state when OE is HIGH.
데이터시트 보기
* 본 제품은 경우에 따라 호환되는 타사 제품으로 변경될 수 있음을 알려 드립니다.
주문시 참고 하세요~~ |
