74LVC32245AEC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 74LVC32245A is a 32-bit transceiver featuring non-inverting 3-state bus compatible

outputs in both send and receive directions. The device features four output enable (nOE)

inputs for easy cascading and four send/receive (nDIR) inputs for direction control.

Pin nOE controls the outputs so that the buses are effectively isolated.

Inputs can be driven from either 3.3 V or 5 V devices. When disabled, up to 5.5 V can be

applied to the outputs. These features allow the use of these devices in mixed

3.3 V and 5 V applications.

To ensure the high-impedance state during power-up or power-down, pin nOE should be

tied to VCC through a pull-up resistor; the minimum value of the resistor is determined by

the current-sinking capability of the driver.

2. Features and benefits

? 5 V tolerant inputs/outputs for interfacing with 5 V logic

? Wide supply voltage range from 2.3 V to 3.6 V

? CMOS low power consumption

? MULTIBYTE flow-through standard pin-out architecture

? Low inductance multiple power and ground pins for minimum noise and ground

bounce

? Direct interface with TTL levels

? Inputs accept voltages up to 5.5 V

? High-impedance when VCC = 0 V

? Complies with JEDEC standard:

? JESD8-7A (1.65 V to 1.95 V)

? JESD8-5A (2.3 V to 2.7 V)

? JESD8-C/JESD36 (2.7 V to 3.6 V)

? ESD protection:

? HBM JESD22-A114F exceeds 2000 V

? MM JESD22-A115B exceeds 200 V

? CDM JESD22-C101E exceeds 1000 V

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

? Packaged in plastic fine-pitch ball grid array package