1 General description

The 74AVC4TD245 is a 4-bit, dual supply transceiver that enables bidirectional level

translation. It features eight 1-bit input-output ports (An and Bn), four direction control

inputs (DIR1, DIR2, DIR3 and DIR4), an output enable input (OE) and dual supply pins

(VCC(A) and VCC(B)). Both VCC(A) and VCC(B) can be supplied at any voltage between

0.8 V and 3.6 V making the device suitable for translating between any of the low voltage

nodes (0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V and 3.3 V). Pins An, OE and DIRn are referenced

to VCC(A) and pins Bn are referenced to VCC(B). A HIGH on DIRn allows transmission from

An to Bn and a LOW on DIRn allows transmission from Bn to An. The output enable input

(OE) can be used to disable the outputs so the buses are effectively isolated.

The device is fully specified for partial power-down applications using IOFF. The IOFF

circuitry disables the output, preventing any damaging backflow current through the

device when it is powered down. In suspend mode when either VCC(A) or VCC(B) are at

GND level, both An and Bn are in the high-impedance OFF-state.

2 Features and benefits

• Wide supply voltage range:

– VCC(A): 0.8 V to 3.6 V

– VCC(B): 0.8 V to 3.6 V

• Complies with JEDEC standards:

– JESD8-12 (0.8 V to 1.3 V)

– JESD8-11 (0.9 V to 1.65 V)

– JESD8-7 (1.2 V to 1.95 V)

– JESD8-5 (1.8 V to 2.7 V)

– JESD8-B (2.7 V to 3.6 V)

• ESD protection:

– HBM JESD22-A114E Class 3B exceeds 8000 V

– MM JESD22-A115-A exceeds 200 V

– CDM JESD22-C101C exceeds 1000 V

• Maximum data rates:

– 380 Mbit/s (≥ 1.8 V to 3.3 V translation)

– 200 Mbit/s (≥ 1.1 V to 3.3 V translation)

– 200 Mbit/s (≥ 1.1 V to 2.5 V translation)

– 200 Mbit/s (≥ 1.1 V to 1.8 V translation)

– 150 Mbit/s (≥ 1.1 V to 1.5 V translation)

– 100 Mbit/s (≥ 1.1 V to 1.2 V translation)

• Suspend mode

• Latch-up performance exceeds 100 mA per JESD 78 Class II

• Inputs accept voltages up to 3.6 V

• IOFF circuitry provides partial Power-down mode operation

• Multiple package options

• Specified from -40 °C to +85 °C and -40 °C to +125 °C

74AVC4TD245GU属于集成电路（IC） > 转换器，电平移位器。安世半导体(中国)有限公司制造生产的74AVC4TD245GU转换器，电平移位器逻辑转换器或电平移位器 IC 可用于在数字逻辑设备之间传递信息，这些设备可在不同/不兼容的供电电压下工作，或可实现不同的信令方式。例如，可以将需要 5 V 电源的数字输出传感器连接到具有 3.3 V I/O 电源的 FPGA，或者在 CMOS 或 TTL 等单端信令方式与 PECL 或 LVDS 等差分技术之间进行转换。