This 16-bit (dual-octal) noninverting bus transceiver contains two separate supply rails. B port has VCCB, which is set to operate at 3.3 V and 5 V. A port has VCCA, which is set to operate at 2.5 V and 3.3 V. This allows for translation from a 2.5-V to a 3.3-V environment, and vice versa, or from a 3.3-V to a 5-V environment, and vice versa.
The SN74ALVC164245 is designed for asynchronous communication between data buses. The control circuitry (1DIR, 2DIR, 1OE, and 2OE) is powered by VCCA.
To ensure the high-impedance state during power up or power down, the output-enable (OE) input should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
Widebus is a trademark of Texas Instruments.
(1)Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.
| Technology family | ALVC |
| Bits (#) | 16 |
| High input voltage (min) (V) | 1.7 |
| High input voltage (max) (V) | 5.5 |
| Vout (min) (V) | 2.3 |
| Vout (max) (V) | 5.5 |
| Data rate (max) (Mbps) | 300 |
| IOH (max) (mA) | -24 |
| IOL (max) (mA) | 24 |
| Supply current (max) (µA) | 40 |
| Features | Output enable |
| Input type | Standard CMOS |
| Output type | 3-State, Balanced CMOS, Push-Pull |
| Rating | HiRel Enhanced Product |
| Operating temperature range (°C) | -55 to 125 |
| SSOP (DL) | 48 | 164.358 mm² 15.88 x 10.35 |
| TSSOP (DGG) | 48 | 101.25 mm² 12.5 x 8.1 |
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