74ALVC244D集成電路（IC）的緩沖器驅(qū)動器接收器收發(fā)器規(guī)格書PDF中文資料

1. General description

The 74ALVC244 is an 8-bit buffer/line driver with 3-state outputs. The device can be used as

two 4-bit buffers or one 8-bit buffer. The device features two output enables (1OE and 2OE),

each controlling four of the 3-state outputs. A HIGH on nOE causes the outputs to assume a

high-impedance OFF-state.

This device is fully specified for partial power down applications using IOFF. The IOFF circuitry

disables the output, preventing the potentially damaging backflow current through the device when

it is powered down.

2. Features and benefits

? Wide supply voltage range from 1.65 V to 3.6 V

? 3.6 V tolerant inputs/outputs

? CMOS low power consumption

? Direct interface with TTL levels (2.7 V to 3.6 V)

? Power-down mode

? Latch-up performance exceeds 250 mA

? Complies with JEDEC standards:

? JESD8-7 (1.65 V to 1.95 V)

? JESD8-5 (2.3 V to 2.7 V)

? JESD8B (2.7 V to 3.6 V)

? ESD protection:

? HBM JESD22-A114E exceeds 2000 V

? MM JESD22-A115-A exceeds 200 V

? Multiple package options

? Specified from -40 °C to +85 °C