SN74ALVCHG162282是TI公司的一款通用总线交换器(UBE)产品，SN74ALVCHG162282是具有三态输出的 18 位至 36 位寄存总线交换器，本页介绍了SN74ALVCHG162282的产品说明、应用、特性等，并给出了与SN74ALVCHG162282相关的TI元器件型号供参考。
SN74ALVCHG162282 - 具有三态输出的 18 位至 36 位寄存总线交换器 - 通用总线交换器(UBE) - 通用总线功能 - TI公司（Texas Instruments，德州仪器）
The SN74ALVCHG162282 is an 18-bit to 36-bit registered bus exchanger. This device is intended for use in applications where data must be transferred from a narrow high-speed bus to a wide lower-frequency bus. It is designed specifically for low-voltage (3.3-V) VCC operation.
The device provides synchronous data exchange between the two ports. Data is stored in the internal registers on the low-to-high transition of the clock (CLK) input. For data transfer in the B-to-A direction, the select (SEL\) input selects 1B or 2B data for the A outputs.
For data transfer in the A-to-B direction, a two-stage pipeline is provided in the 1B path, with a single storage register in the 2B path. Data flow is controlled by the active-low output-enable (OE\) and direction-control (DIR) input. DIR is registered to synchronize the bus direction changes with the clock.
The A-port N-channel output transistors are sized at 450 µm and the P-channel output transistors are sized at 700 µm. All A-port outputs have equivalent 50- series resistors.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
The switching characteristics are based on 25-pF (A port) and 80-pF (B port) loads, but are tested with the standard 50-pF load.
The SN74ALVCHG162282 is characterized for operation from 0°C to 70°C.
- Member of the Texas Instruments Widebus™ Family
- EPIC™ (Enhanced-Performance Implanted CMOS) Sub-Micron Process
- A-Port Outputs Have Equivalent 50- Series Resistors and B-Port Outputs Have Equivalent 20- Series Resistors, So No External Resistors Are Required
- ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
- Latch-Up Performance Exceeds 250 mA Per JESD 17
- Bus-Hold On Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
- Packaged in Thin Very Small-Outline Package
NOTE: For order entry: The DBB package is abbreviated to G. For tape and reel: The DBBR package is abbreviated to GR. Widebus, EPIC are trademarks of Texas Instruments.
