SN65EPT21D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SN65EPT21D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。

1FEATURES

? 1 ns Propagation Delay

? Fmax > 300MHz

? Operating Range: VCC = 3.0 V to 3.6 V with

GND = 0 V

? 24-mA TTL Output

? Built-In Temperature Compensation

? Drop-In Compatible to the MC10EPT21,

MC100EPT21

APPLICATIONS

? Data and Clock Transmission Over Backplane

? Signaling Level Conversion for Clock or Data

DESCRIPTION

The SN65EPT21 is a differential PECL-to-TTL

translator. It operates on +3.3 V supply and ground

only. The device includes circuitry to maintain inputs

at Vcc/2 when left open.

The VBB pin is a reference voltage output for the

device. When the device is used in single-ended

mode, the unused input should be tied to VBB. This

reference voltage can also be used to bias the input

when it is ac coupled. When it is used, place a

0.01μF decoupling capacitor between VCC and VBB.

Also limit the sink/source current to < 0.5 mA to VBB.

Leave VBB open when it is not used.

The SN65EPT21 is housed in an industry standard

SOIC-8 package and is also available in an optional

TSSOP-8 package.