SN74AVC16T245DGG屬于集成電路（IC）的轉(zhuǎn)換器電平移位器。由美國德州儀器公司制造生產(chǎn)的SN74AVC16T245DGG轉(zhuǎn)換器，電平移位器邏輯轉(zhuǎn)換器或電平移位器 IC 可用于在數(shù)字邏輯設(shè)備之間傳遞信息，這些設(shè)備可在不同/不兼容的供電電壓下工作，或可實(shí)現(xiàn)不同的信令方式。例如，可以將需要 5 V 電源的數(shù)字輸出傳感器連接到具有 3.3 V I/O 電源的 FPGA，或者在 CMOS 或 TTL 等單端信令方式與 PECL 或 LVDS 等差分技術(shù)之間進(jìn)行轉(zhuǎn)換。

1 Features

? Control Inputs VIH/VIL Levels Are Referenced to

VCCA Voltage

? VCC Isolation Feature – If Either VCC Input Is at

GND, Both Ports Are in the High-Impedance State

? Overvoltage-Tolerant Inputs and Outputs Allow

Mixed-Voltage-Mode Data Communications

? Fully Configurable Dual-Rail Design Allows Each

Port to Operate Over the Full 1.2V to 3.6V Power-

Supply Range

? Ioff Supports Partial-Power-Down Mode Operation

? I/Os Are 4.6V Tolerant

? Maximum Data Rates

– 380Mbps (1.8V to 3.3V Level-Shifting)

– 200Mbps (<1.8V to 3.3V Level-Shifting)

– 200Mbps (Level-Shifting to 2.5V or 1.8V)

– 150Mbps (Level-Shifting to 1.5V)

– 100Mbps (Level-Shifting to 1.2V)

? Latch-Up Performance Exceeds 100mA Per JESD

78, Class II

? ESD Protection Exceeds JESD 22

– 8000V Human-Body Model (A114-A)

– 200V Machine Model (A115-A)

– 1000V Charged-Device Model (C101)

2 Applications

? Personal Electronics

? Industrial

? Enterprise

? Telecom

3 Description

This 16-bit noninverting bus transceiver uses

two separate configurable power-supply rails. The

SN74AVC16T245 device is optimized to operate

with VCCA/VCCB set at 1.4V to 3.6V. The device is

operational with VCCA/VCCB as low as 1.2V. The A port

is designed to track VCCA. VCCA accepts any supply

voltage from 1.2V to 3.6V. The B port is designed

to track VCCB. VCCB accepts any supply voltage from

1.2V to 3.6V. This allows for universal low-voltage

bidirectional translation between any of the 1.2V, 1.5V,

1.8V, 2.5V, and 3.3V voltage nodes.

The SN74AVC16T245 device is designed for

asynchronous communication between data buses.

The device transmits data from the A bus to the B

bus or from the B bus to the A bus, depending on

the logic level at the direction-control (DIR) input. The

output-enable ( OE) input can be used to disable the

outputs so the buses effectively are isolated.

The SN74AVC16T245 control pins (1DIR, 2DIR, 1

OE, and 2 OE) are supplied by VCCA.