This is a kind of Transceiver TTL.
Part Number: 74HC245
Function: Octal Bus Transceiver
Package: SO20, SSOP20, TSSOP20, DHVQFN20 Type
Manufacturer: NXP Semiconductors.
Image and Pinouts:
The 74HC245, 74HCT245 is a high-speed Si-gate CMOS device and is pin compatible with Low-Power Schottky TTL (LSTTL).
The device is an octal transceiver featuring non-inverting 3-state bus compatible outputs in both send and receive directions. The features an output enable input (OE) for easy cascading and a send/receive input (DIR) for direction control. OE controls the outputs so that the buses are effectively isolated.
Block Diagram :
1. Complies with JEDEC standard JESD7A
2. Input levels :
(1) For 74HC245: CMOS level
(2) For 74HCT245: TTL level
3. Octal bidirectional bus interface
4. Non-inverting 3-state outputs
5. ESD protection :
(1) HBM JESD22-A114F exceeds 2000 V
(2) MM JESD22-A115-A exceeds 200 V
6. Multiple package options
7. Specified from -40 °C to +85 °C and from -40 °C to +125 °C
Other data sheets are available within the file: 74HC245BQ, 74HC245D, 74HC245DB, 74HC245N