Datasheet Texas Instruments CD74AC257 — 数据表

制造商	Texas Instruments
系列	CD74AC257

具有三态输出的四路2输入同相多路复用器

数据表

PDF, 1.1 Mb, 修订版: A, 档案已发布: May 17, 2000

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	CD74AC257E	CD74AC257M	CD74AC257M96	CD74AC257MG4
Lifecycle Status	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

	CD74AC257E	CD74AC257M	CD74AC257M96	CD74AC257MG4
N	1	2	3	4
Pin	16	16	16	16
Package Type	N	D	D	D
Industry STD Term	PDIP	SOIC	SOIC	SOIC
JEDEC Code	R-PDIP-T	R-PDSO-G	R-PDSO-G	R-PDSO-G
Package QTY	25	40	2500	40
Carrier	TUBE	TUBE	LARGE T&R	TUBE
Device Marking	CD74AC257E	AC257M	AC257M	AC257M
Width (mm)	6.35	3.91	3.91	3.91
Length (mm)	19.3	9.9	9.9	9.9
Thickness (mm)	3.9	1.58	1.58	1.58
Pitch (mm)	2.54	1.27	1.27	1.27
Max Height (mm)	5.08	1.75	1.75	1.75
Mechanical Data	下载	下载	下载	下载

Parameters / Models	CD74AC257E	CD74AC257M	CD74AC257M96	CD74AC257MG4
Bandwidth, MHz	100	100	100	100
Bits	2	2	2	2
Number of Channels	4	4	4	4
Configuration	2:1	2:1	2:1	2:1
Digital input leakage(Max), uA	5	5	5	5
ESD Charged Device Model, kV	0.75	0.75	0.75	0.75
ESD HBM, kV	2	2	2	2
F @ Nom Voltage(Max), Mhz	100	100	100	100
Function	Encoder/Multiplexer	Encoder/Multiplexer	Encoder/Multiplexer	Encoder/Multiplexer
ICC @ Nom Voltage(Max), mA	0.08	0.08	0.08	0.08
Operating Temperature Range, C	-55 to 125	-55 to 125	-55 to 125	-55 to 125
Output Drive (IOL/IOH)(Max), mA	24/-24	24/-24	24/-24	24/-24
Package Group	PDIP	SOIC	SOIC	SOIC
Package Size: mm2:W x L, PKG	See datasheet (PDIP)	16SOIC: 59 mm2: 6 x 9.9(SOIC)	16SOIC: 59 mm2: 6 x 9.9(SOIC)	16SOIC: 59 mm2: 6 x 9.9(SOIC)
Rating	Catalog	Catalog	Catalog	Catalog
Schmitt Trigger	No	No	No	No
Technology Family	AC	AC	AC	AC
Type	3-State Output	3-State Output	3-State Output	3-State Output
VCC(Max), V	5.5	5.5	5.5	5.5
VCC(Min), V	1.5	1.5	1.5	1.5
Voltage(Nom), V	1.5, 3.3,5	1.5, 3.3,5	1.5, 3.3,5	1.5, 3.3,5
tpd @ Nom Voltage(Max), ns	106,11.8,8.5	106,11.8,8.5	106,11.8,8.5	106,11.8,8.5

	CD74AC257E	CD74AC257M	CD74AC257M96	CD74AC257MG4
RoHS	Compliant	Compliant	Compliant	Compliant
Pb Free	Yes

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Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc
PDF, 43 Kb, 档案已发布: Apr 1, 1996
Though low power consumption is a feature of CMOS devices sometimes this feature does not meet a designer?s system power supply constraints. Therefore a partial system power down or multiple Vcc supplies are used to meet the needs of the system. This document shows electrostatic discharge protection circuits. It also provides circuit and bus driver examples of partial system power down and curren

系列: CD74AC257 (4)