The Fairchild 74LVXC4245 is a 24-pin dual-supply, 8-bit configurable voltage interface transceiver with 3-STATE outputs. The A port is a dedicated 5 V port, and the B port tracks the VccB supply, which accepts a 3 V-to-5 V level. The device is suited for PCMCIA and other real-time configurable I/O applications; when OE is HIGH, the VccB pin and B-port I/O pins can float.
The datasheet covers features such as bidirectional interface between 5 V and 3 V-to-5 V buses, TTL-compatible control inputs, outputs that source/sink up to 24 mA, and functional compatibility with the 74 series 245. It also gives ordering codes for SOIC, QSOP, and TSSOP packages, pin descriptions and truth table, absolute maximum ratings, recommended operating conditions, DC and AC electrical characteristics, capacitance data, power-up sequencing guidance, and a PCMCIA configurable I/O application section.
| Configuration | 24-pin, dual-supply, 8-bit |
|---|---|
| VCCA supply voltage | 4.5 V to 5.5 V |
| VCCB supply voltage | 2.7 V to 5.5 V |
| Output drive | Up to 24 mA source/sink |
| Control input compatibility | TTL level |
| Storage temperature range | -65°C to +150°C |
| Quiescent power | Less than 1 mW in all modes |
It is a 24-pin, dual-supply, 8-bit configurable voltage interface transceiver with 3-STATE outputs.
The B port and VccB pin can float simultaneously.
Yes, it is functionally compatible with the 74 series 245.
The A port is a dedicated 5 V port.