SN74ALVCH16282

Supply voltage range, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 4.6 V
Input voltage range, V_I: Except I/O ports (see Note 1) . . . . . . . . . . . . . 0.5 V to 4.6 V
I/O ports (see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to V_CC + 0.5 V
Output voltage range, V_O (see Notes 1 and 2) . . . . . . . . . . . . . . 0.5 V to V_CC + 0.5 V
Input clamp current, IIK (V_I < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . 50 mA
Output clamp current, I_OK (V_O < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . 50 mA
Continuous output current, I_O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA
Continuous current through each V_CC or GND . . . . . . . . . . . . . . . . . . . . . . . . . ±100 mA
Package thermal impedance, _JA (see Note 3) . . . . . . . . . . . . . . . . .. . . . . . . . . 64°C/W
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C

† Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. The input negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. This value is limited to 4.6 V maximum.
3. The package thermal impedance is calculated in accordance with JESD 51.

The SN74ALVCH16282 is an 18-bit to 36-bit registered bus exchanger designed for 1.65-V to 3.6-V V_CC operation.

This SN74ALVCH16282 is intended for use in applications in which 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) V_CC operation.

The SN74ALVCH16282 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 the DIR input. The DIR control pin is registered to synchronize the bus direction changes with the clock.Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.The SN74ALVCH16282 is characterized for operation from 40°C to 85°C.