74LV244PW集成電路（IC）的緩沖器驅(qū)動(dòng)器接收器收發(fā)器規(guī)格書PDF中文資料

1. General description

The 74LV244 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. Inputs include clamp diodes. This enables the use of current limiting resistors to

interface inputs to voltages in excess VCC.

2. Features and benefits

? Wide supply voltage range from 1.0 to 5.5 V

? CMOS low power dissipation

? Latch-up performance exceeds 100 mA per JESD 78 Class II Level B

? Optimized for low voltage applications: 1.0 V to 3.6 V

? Accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V

? Typical VOLP (output ground bounce) < 0.8 V at VCC = 3.3 V; Tamb = 25 °C

? Typical VOHV (output VOH undershoot) > 2 V at VCC = 3.3 V; Tamb = 25 °C

? Complies with JEDEC standards:

? JESD8-7 (1.65 V to 1.95 V)

? JESD8-5 (2.3 V to 2.7 V)

? JESD8C (2.7 V to 3.6 V)

? JESD36 (4.5 V to 5.5 V)

? ESD protection:

? HBM JESD22-A114F exceeds 2000 V

? MM JESD22-A115-A exceeds 200 V

? Specified from -40 °C to +85 °C and from -40 °C to +125 °C