ZHCSQK3I March 2003 – February 2025 SN54HCT244 , SN54HCT244-SP , SN74HCT244

PRODUCTION DATA

4 Pin Configuration and Functions

SN54HCT244 SN74HCT244 J, DB, DW, N, NS, PW or DGS Packages, 20-Pin CDIP, CFP, SSOP, SOIC, PDIP, SO, TSSOP, or VSSOP (Top View)

J, DB, DW, N, NS, PW or DGS Packages, 20-Pin CDIP, CFP, SSOP, SOIC, PDIP, SO, TSSOP, or VSSOP (Top View)

SN54HCT244 SN74HCT244 FK Package, 20-Pin LCCC (Top View)

FK Package, 20-Pin LCCC (Top View)

Table 4-1 Pin Functions

PIN		TYPE⁽¹⁾	DESCRIPTION
NAME	NO.	TYPE⁽¹⁾	DESCRIPTION
1 OE	1	I	Output enable
1A1	2	I	Input
2Y4	3	O	Output
1A2	4	I	Input
2Y3	5	O	Output
1A3	6	I	Input
2Y2	7	O	Output
1A4	8	I	Input
2Y1	9	O	Output
GND	10	—	Ground
2A1	11	I	Input
1Y4	12	O	Output
2A2	13	I	Input
1Y3	14	O	Output
2A3	15	I	Input
1Y2	16	O	Output
2A4	17	I	Input
1Y1	18	O	Output
2 OE	19	I	Output enable
V_CC	20	—	Power pin

(1) Signal Types: I = Input, O = Output, I/O = Input or Output.