4547 BCD-to-7 Segment Decoder/Driver

Pin Arrangement

PIN Function BI Blank In D0 - D3 Data-In a - g 64mAmax Source Output Pattern

Truth Table

INPUTS		OUTPUTS
BI'	D3 - D0	a b c d e f g	DISPLAY
0	x x x x	0 0 0 0 0 0 0	Blank
1 1 1 1	0 0 0 0 0 0 0 1 0 0 1 0 0 0 1 1	1 1 1 1 1 1 0 0 1 1 0 0 0 0 1 1 0 1 1 0 1 1 1 1 1 0 0 1	0 1 2 3
1 1 1 1	0 1 0 0 0 1 0 1 0 1 1 0 0 1 1 1	0 1 1 0 0 1 1 1 0 1 1 0 1 1 0 0 1 1 1 1 1 1 1 1 0 0 0 0	4 5 6 7
1 1 1 1	1 0 0 0 1 0 0 1 1 0 1 0 1 0 1 1	1 1 1 1 1 1 1 1 1 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0	8 9 Blank Blank
1 1 1 1	1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 1	0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0	Blank Blank Blank Blank

Electrical Characteristics

Operating Range

VDD	B	UB	H	74HC	Unit
Min	3	-	-	-	V
Max	18	-	-	-	V




Timming

		4511B
Seg. Output		VDD = 5V		VDD = 15V		Unit
		typ	max	typ	max
Rising Time		40	80	25	50	nS
Falling Time		125	250	65	130	nS
Propagation Delay	LH	640	1280	175	350	nS
	HL	720	1440	200	400	nS

Reference

4511, 4513