Chip1982Texas Instruments

74HC373 Octal Transparent D-Type Latch with 3-State Outputs

Octal transparent D-type latch with 3-state outputs. When Latch Enable (LE) is high, outputs follow inputs. When LE goes low, inputs are latched.

Aliase:SN74HC373N, 74HCT373, Octal Latch

DIP-20 Top View

20 Pins

Pinout Table20

Pin	Signal / Name	Type	Alternative Functions
1	~OE	Digital	Output Enable (Active Low; High puts outputs in Hi-Z)
2	1Q	Digital	Latch 1 Output
3	1D	Digital	Latch 1 Data Input
4	2D	Digital	Latch 2 Data Input
5	2Q	Digital	Latch 2 Output
6	3Q	Digital	Latch 3 Output
7	3D	Digital	Latch 3 Data Input
8	4D	Digital	Latch 4 Data Input
9	4Q	Digital	Latch 4 Output
10	GND	Ground	System Ground (0V)
11	LE	Digital	Latch Enable (Active High; transparent when High)
12	5Q	Digital	Latch 5 Output
13	5D	Digital	Latch 5 Data Input
14	6D	Digital	Latch 6 Data Input
15	6Q	Digital	Latch 6 Output
16	7Q	Digital	Latch 7 Output
17	7D	Digital	Latch 7 Data Input
18	8D	Digital	Latch 8 Data Input
19	8Q	Digital	Latch 8 Output
20	VCC	Power	Positive Supply Voltage (+2V to +6V)