74LVXC3245TTR集成電路（IC）的轉換器電平移位器規(guī)格書PDF中文資料

74LVXC3245TTR屬于集成電路（IC）的轉換器電平移位器。由意法半導體集團制造生產的74LVXC3245TTR轉換器，電平移位器邏輯轉換器或電平移位器 IC 可用于在數字邏輯設備之間傳遞信息，這些設備可在不同/不兼容的供電電壓下工作，或可實現不同的信令方式。例如，可以將需要 5 V 電源的數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 等差分技術之間進行轉換。

DESCRIPTION

The 74LVXC3245 is a dual supply 8 bit configurable low voltage CMOS OCTAL BUS TRANSCEIVER fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. Designed for use as an interface between a 3.3V bus and a 3.3V to 5V bus in a mixed 3.3V/5V supply systems, it achieves high speed operation while maintaining the CMOS low power dissipation.

This IC is intended for two-way asynchronous communication between data buses and the direction of data transmission is determined by DIR input. The enable input G can be used to disable the device so that the buses are effectively isolated.

The A-port interfaces with the 3V bus, the B-port with the 5V bus.

All inputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.

■ HIGH SPEED:

tPD = 8ns (MAX.) at TA=25°C

VCCA = 3.3V, VCCB = 5.0V

■ LOW POWER DISSIPATION:

ICCA = ICCB = 5μA(MAX.) at TA=25°C

■ LOW NOISE: VOLP =0.3V (TYP.) at VCCA=3.3V

■ SYMMETRICAL OUTPUT IMPEDANCE:

|IOH| = IOL = 24mA (MIN)

■ BALANCED PROPAGATION DELAYS: tPLH ? tPHL

■ OPERATING VOLTAGE RANGE:

VCCA(OPR) = 2.7V to 3.6V (1.2V Data Retention)

VCCB(OPR) = 2.7V to 5.5V (1.2V Data Retention)

PIN AND FUNCTION COMPATIBLE WITH

74 SERIES C3245

■ IMPROVED LATCH-UP IMMUNITY