The 74HCT245 are high-speed Si-gate CMOS devices
and are pin compatible with low power Schottky TTL
(LSTTL). The 74HCT245 are octal transceivers featuring
non-inverting 3-state bus compatible outputs in both send
and receive directions. The 74HCT245 features an output
enable (OE) input for easy cascading and a send/receive
(DIR) for direction control. OE controls the outputs so that
the buses are effectively isolated. The 74HCT245 is similar to the “640” but has true (non-inverting) outputs.
Octal bidirectional bus interface
Non-inverting 3-state outputs
Output capability: bus driver
ICC category: MSI
SOIC 20 package. Actual brand may vary from picture.