74AHCT541ABQX

The 74AHCT541A is an 8-bit buffer/line driver with 3-state outputs and TTL inputs. The device features two output enables (OE1 and OE2). A HIGH on OEn causes the associated outputs to assume a high-impedance OFF-state. Designed to operate over a VCC range from 4.5 V to 5.5 V, the inputs are TTL compatible, which allows the device to be used to translate from 3.3 V to 5 V. Schmitt-trigger action at all inputs makes the circuit tolerant of slower input rise and fall times. This device is fully specified for partial Power-down applications using IOFF. The IOFF circuitry disables the output, preventing the damaging backflow current through the device when it is powered down.

Applications

• Voltage translation applications (e.g., 3.3V to 5V)
• Buffer/line driver
• Tri-state output device

Key features

• Direct interface with TTL levels
• Supply voltage range from 4.5 V to 5.5 V
• Overvoltage tolerant inputs to 5.5 V
• High noise immunity
• CMOS low power dissipation
• Typical tpd of 2.8 ns at 5 V
• Typical VOL(p) < 0.8 V at VCC = 5 V, Tamb = 25 ℃
• Typical VOH(v) > 2.3 V at VCC = 5 V, Tamb = 25 ℃
• Supports mixed-mode voltage operation on all ports
• IOFF circuitry provides partial Power-down mode operation
• Latch-up performance exceeds 250 mA per JESD 78 Class II
• ESD protection:
• HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 3000 V CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 2000 V
• Specified from -40 ℃ to +85 ℃ and from -40 ℃ to +125 ℃