54374

Octal D-type edge-triggered flip-flops with 3-state outputs


OE	1 •	20	Vcc
1Q	2	19	8Q
1D	3	18	D8D7
2D	4	17	7D
2Q	5	16	7Q
3Q	6	15	6Q
3D	7	14	6D
4D	8	13	5D
4Q	9	12	5Q
GND	10	11	CLK

Pin	Symbol	Description
1	OE	output enable (active low)
2	1Q	flip-flop output
3	1D	data input
4	2D	data input
5	2Q	flip-flop output
6	3Q	flip-flop output
7	3D	data input
8	4D	data input
9	4Q	flip-flop output
10	GND	ground
11	CLK	clock input (low-to-high, edge-triggered)
12	5Q	flip-flop output
13	5D	data input
14	6D	data input
15	6Q	flip-flop output
16	7Q	flip-flop output
17	7D	data input
18	D8D7	data input
19	8Q	flip-flop output
20	Vcc	supply voltage

Specifications

(typical values under recommended operating conditions, unless specified)

Parameter	Value	Unit
Supply Voltage range	-0.5 to 7	V
Input Voltage range	-0.5 to 7	V
Recommended Voltage range	4.5 to 5.5	V
High level input voltage	2	V
Low-level input voltage	0.7 (54AL) 0.8 (74AL)	V
High-level output current	-1 (54AL) -2.6 (74AL)	mA
Low-level output current	12 (54AL) 24 (74AL)	mA
Operating Temp	-55 to +125 (54AL) 0 to +70 (74AL)	degC

Notes

OE does not affect internal operations of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state
released april 1982, revised november 1999

Note: Data is maintained by an independent source and accuracy is not guaranteed. Check with the manufacturer's datasheet for up-to-date information.