描述 Description

The 74LVC1T45-Q100; 74LVCH1T45-Q100 are single bit, dual supply transceivers with 3-state outputs that enable bidirectional level translation. They feature two 1-bit input-output ports (AandB), a direction control input (DIR) and dual supply pins (VCC(A) and VCC(B)). Both VCC(A) and VCC(B) can be supplied with any voltage between 1.2 V and 5.5 V. This flexibility makes the device suitable for translating between any of the low voltage nodes (1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V and 5.0 V). Pins A and DIR are referenced to VCC(A) and pin B is referenced to VCC(B). A HIGH on DIR allows transmission from A to B and a LOW on DIR allows transmission from B to A.
The devices are 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, bothAportandBport are in the high-impedance OFF-state.
Active bus hold circuitry in the 74LVCH1T45-Q100 holds unused or floating data inputs at a valid logic level.
This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1) and is suitable for use in automotive applications.

特性 Features

? Automotive product qualification in accordance with AEC-Q100 (Grade 1)
? Specified from -40 °C to +85 °C and from -40 °C to +125 °C

? Wide supply voltage range:
? VCC(A): 1.2 V to 5.5 V
? VCC(B): 1.2 V to 5.5 V

? High noise immunity
? Complies with JEDEC standards:
? JESD8-7 (1.2 V to 1.95 V)
? JESD8-5 (1.8 V to 2.7 V)
? JESD8C (2.7 V to 3.6 V)
? JESD36 (4.5 V to 5.5 V)

? ESD protection:
? MIL-STD-883, method 3015 Class 3A exceeds 4000 V
? HBM JESD22-A114F Class 3A exceeds 4000 V

? Maximum data rates:
? 420 Mbps (3.3 V to 5.0 V translation)
? 210 Mbps (translate to 3.3 V))
? 140 Mbps (translate to 2.5 V)
? 75 Mbps (translate to 1.8 V)
? 60 Mbps (translate to 1.5 V)

? Suspend mode
? Latch-up performance exceeds 100 mA per JESD 78 Class II
? ±24 mA output drive (VCC = 3.0 V)
? Inputs accept voltages up to 5.5 V
? Low power consumption: 16 μA maximum ICC
? IOFF circuitry provides partial Power-down mode operation