Datasheet Texas Instruments SN74ALS257A — 数据表

制造商	Texas Instruments
系列	SN74ALS257A

具有三态输出的四路2线至1线数据选择器/多路复用器

数据表

PDF, 1.0 Mb, 修订版: C, 档案已发布: Aug 1, 1996

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	SN74ALS257AD	SN74ALS257ADG4	SN74ALS257ADR	SN74ALS257AN	SN74ALS257ANE4	SN74ALS257ANSR
Lifecycle Status	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)
Manufacture's Sample Availability	No	No	No	No	No	No

	SN74ALS257AD	SN74ALS257ADG4	SN74ALS257ADR	SN74ALS257AN	SN74ALS257ANE4	SN74ALS257ANSR
N	1	2	3	4	5	6
Pin	16	16	16	16	16	16
Package Type	D	D	D	N	N	NS
Industry STD Term	SOIC	SOIC	SOIC	PDIP	PDIP	SOP
JEDEC Code	R-PDSO-G	R-PDSO-G	R-PDSO-G	R-PDIP-T	R-PDIP-T	R-PDSO-G
Package QTY	40	40	2500	25	25	2000
Carrier	TUBE	TUBE	LARGE T&R	TUBE	TUBE	LARGE T&R
Device Marking	ALS257A	ALS257A	ALS257A	SN74ALS257AN	SN74ALS257AN	ALS257A
Width (mm)	3.91	3.91	3.91	6.35	6.35	5.3
Length (mm)	9.9	9.9	9.9	19.3	19.3	10.3
Thickness (mm)	1.58	1.58	1.58	3.9	3.9	1.95
Pitch (mm)	1.27	1.27	1.27	2.54	2.54	1.27
Max Height (mm)	1.75	1.75	1.75	5.08	5.08	2
Mechanical Data	下载	下载	下载	下载	下载	下载

Parameters / Models	SN74ALS257AD	SN74ALS257ADG4	SN74ALS257ADR	SN74ALS257AN	SN74ALS257ANE4	SN74ALS257ANSR
Bandwidth, MHz	75	75	75	75	75	75
Bits	2	2	2	2	2	2
Number of Channels	4	4	4	4	4	4
Configuration	2:1	2:1	2:1	2:1	2:1	2:1
Digital input leakage(Max), uA	5	5	5	5	5	5
ESD Charged Device Model, kV	0.75	0.75	0.75	0.75	0.75	0.75
ESD HBM, kV	2	2	2	2	2	2
F @ Nom Voltage(Max), Mhz	75	75	75	75	75	75
Function	Encoder/Multiplexer	Encoder/Multiplexer	Encoder/Multiplexer	Encoder/Multiplexer	Encoder/Multiplexer	Encoder/Multiplexer
ICC @ Nom Voltage(Max), mA	14	14	14	14	14	14
Operating Temperature Range, C	0 to 70	0 to 70	0 to 70	0 to 70	0 to 70	0 to 70
Output Drive (IOL/IOH)(Max), mA	24/-2.6	24/-2.6	24/-2.6	24/-2.6	24/-2.6	24/-2.6
Package Group	SOIC	SOIC	SOIC	PDIP	PDIP	SO
Package Size: mm2:W x L, PKG	16SOIC: 59 mm2: 6 x 9.9(SOIC)	16SOIC: 59 mm2: 6 x 9.9(SOIC)	16SOIC: 59 mm2: 6 x 9.9(SOIC)	See datasheet (PDIP)	See datasheet (PDIP)	16SO: 80 mm2: 7.8 x 10.2(SO)
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
Schmitt Trigger	No	No	No	No	No	No
Technology Family	ALS	ALS	ALS	ALS	ALS	ALS
Type	3-State Output	3-State Output	3-State Output	3-State Output	3-State Output	3-State Output
VCC(Max), V	5.5	5.5	5.5	5.5	5.5	5.5
VCC(Min), V	4.5	4.5	4.5	4.5	4.5	4.5
Voltage(Nom), V	5	5	5	5	5	5
tpd @ Nom Voltage(Max), ns	12	12	12	12	12	12

	SN74ALS257AD	SN74ALS257ADG4	SN74ALS257ADR	SN74ALS257AN	SN74ALS257ANE4	SN74ALS257ANSR
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant
Pb Free	Yes	Yes

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Advanced Schottky (ALS and AS) Logic Families
PDF, 1.9 Mb, 档案已发布: Aug 1, 1995
This document introduces the advanced Schottky family of clamped TTL integrated circuits (ICs). Detailed electrical characteristics of the 'AS and 'ALS devices with table formats are provided. Guidelines for designing high-performance digital systems using the Advanced Schottky family are given along with a brief summary of the solutions to most design decisions needed to implement systems using t

系列: SN74ALS257A (6)