The MC54/74HCT245A is identical in pinout to the LS245. This device may be used as a level converter for interfacing TTL or NMOS outputs to High Speed CMOS inputs.

The MC54/74HCT245A is a 3–state noninverting transceiver that is used for 2–way asynchronous communication between data buses. The device has an active–low Output Enable pin, which is used to place the I/O ports into high–impedance states. The Direction control determines whether data flows from A to B or from B to A.
• Output Drive Capability: 15 LSTTL Loads
• TTL/NMOS Compatible Input Levels
• Outputs Directly Interface to CMOS, NMOS and TTL
• Operating Voltage Range: 4.5 to 5.5 V
• Low Input Current: 1.0 μA
• In Compliance with the Requirements Defined by JEDEC Standard No. 7A
• Chip Complexity: 304 FETs or 76 Equivalent Gates

* Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions.
†Derating — Plastic DIP: – 10 mW/°C from 65° to 125°C
                    Ceramic DIP: – 10 mW/°C from 100
to 125°C
                    SOIC Package: – 7 mW/°C from 65
to 125°C
 SSOP or TSSOP Package: – 6.1 mW/°C from 65
to 125°C
For high frequency or heavy load considerations, see Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D).