74244 Octal 3-state Schumitt Trigger Bus Buffers

Pin Arrangement

Electrical Characteristics

Propagation Delay

Input	Output	N	LS	ALS	ALS 1000	F	S	AS	AS 1000	HC	HCT	Unit [max]
-	L->H	-	18	10	14	6.2	6	6.2	-	29	29	nS
	H->L	-	18	10	14	6.5	6	6.2	-	29	29	nS
	Z->H	-	23	20	22	6.7	12	9	-	38	38	nS
	Z->L	-	30	20	22	8	15	7.5	-	38	38	nS
	H->Z	-	18	10	10	7	9	6	-	38	38	nS
	L->Z	-	25	13	13	7	15	9	-	38	38	nS




Input Characteristics

		N	LS	ALS	ALS 1000	F	S	AS	AS 1000	Unit
A	High	-	20	20	20	20	50	20	-	uA
	Low	-	0.2	0.1	0.1	1	0.4	0.3	-	mA
G'	High	-	20	20	20	20	50	20	-	uA
	Low	-	0.2	0.1	0.1	1	2	0.3	-	mA




Output Characteristics

		N	LS	ALS	ALS 1000	F	S	AS	AS 1000	HC	HCT	Unit
Y	High	-	15	15	15	3	15	15	-	6	6	mA
	Low	-	24	24	16	64	64	64	-	6	6	mA
	Low@Z	-	20	20	-	-	50	50	-	5	5	uA
	High@Z	-	20	20	-	-	50	50	-	5	5	uA

테스트 조건:

Reference

입력은 PNP 트랜지스터.
입력 히스테리시스 폭은 400mV.