ADG3304屬于集成電路（IC）的轉(zhuǎn)換器電平移位器。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的ADG3304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。

GENERAL DESCRIPTION

The ADG3304 is a bidirectional logic level translator that con-tains four bidirectional channels. It can be used in multivoltage digital system applications, such as data transfer, between a low voltage digital signal processing controller and a higher voltage device using SPI and MICROWIRE interfaces. The internal architecture allows the device to perform bidirectional logic level translation without an additional signal to set the direction in which the translation takes place.

The voltage applied to VCCA sets the logic levels on the A side of the device, while VCCY sets the levels on the Y side. For proper operation, VCCA must always be less than VCCY. The VCCA-com-patible logic signals applied to the A side of the device appear as VCCY-compatible levels on the Y side. Similarly, VCCY-compatible logic levels applied to the Y side of the device appear as VCCA-compatible logic levels on the A side.

The enable pin (EN) provides three-state operation on both the A side and the Y side pins. When the EN pin is pulled low, the terminals on both sides of the device are in the high impedance state. The EN pin is referred to the VCCA supply voltage and driven high for normal operation.

The ADG3304 is available in compact 14-lead TSSOP, 12-ball WLCSP, and 20-lead LFCSP. It is guaranteed to operate over the 1.15 V to 5.5 V supply voltage range.

FEATURES

Bidirectional level translation

Operates from 1.15 V to 5.5 V

Low quiescent current < 5 μA

No direction pin

Qualified for automotive applications

APPLICATIONS

SPI, MICROWIRE level translation

Low voltage ASIC level translation

Smart card readers

Cell phones and cell phone cradles

Portable communications devices

Telecommunications equipment

Network switches and routers

Storage systems (SAN/NAS)

Computing/server applications

GPS

Portable POS systems

Low cost serial interfaces