This 8-bit (octal) noninverting bus transceiver contains two separate supply rails; B port has VCCB, which is set at 3.3 V, and A port has VCCA, which is set at 5 V. This allows for translation from a 3.3-V to a 5-V environment, and vice versa.
The SN74LVC4245A is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so the buses are effectively isolated.
The SN74LVC4245A pinout allows the designer to switch to a normal all-3.3-V or all-5-V 20-pin ’245 device without board re-layout. The designer uses the data paths for pins 2-11 and 14-23 of the SN74LVC4245A to align with the conventional ’245 pinout.
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 | LVC |
| Bits (#) | 8 |
| High input voltage (min) (V) | 2 |
| High input voltage (max) (V) | 5.5 |
| Vout (min) (V) | 2.7 |
| Vout (max) (V) | 5.5 |
| Data rate (max) (Mbps) | 200 |
| IOH (max) (mA) | -24 |
| IOL (max) (mA) | 24 |
| Supply current (max) (µA) | 130 |
| Features | Output enable |
| Input type | Standard CMOS |
| Output type | 3-State, Balanced CMOS, Push-Pull |
| Rating | HiRel Enhanced Product |
| Operating temperature range (°C) | -40 to 85 |
| TSSOP (PW) | 24 | 49.92 mm² 7.8 x 6.4 |
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