3 Description

The SNx4HCT245 octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.

The SNx4HCT245 devices allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending upon the logic level at the direction-control (DIR) input. The output-enable ( OE) input can be used to disable the device so that the buses are effectively isolated.

Device Information

PART NUMBER	PACKAGE⁽¹⁾	BODY SIZE (NOM)
SN54HCT245	J (CDIP, 20)	24.20 mm × 6.92 mm
	FK (LCCC, 20)	8.89 mm × 8.89 mm
	W (CFP, 20)	13.09 mm × 6.92 mm
SN74HCT245	DW (SOIC, 20)	12.80 mm × 7.50 mm
	N (PDIP, 20)	24.33 mm × 6.35 mm
	NS (SO, 20)	12.60 mm × 5.30 mm
	PW (TSSOP, 20)	6.50 mm × 4.40 mm
	DB (SSOP, 20)	7.80 mm × 7.20 mm
	DGS (VSSOP, 20)	5.10 mm × 3.00 mm

(1) For all available packages, see the orderable addendum at the end of the data sheet.

Logic Diagram (Positive Logic)