MC74VHCT259A

更新时间： 2024-11-04 05:22:07

品牌	Logo	应用领域
安森美 - ONSEMI		解码器转换器电平转换器锁存器
页数	文件大小	规格书
9页	116K
描述
8−Bit Addressable Latch/1−of−8 Decoder CMOS Logic Level Shifter with LSTTL−Compatible Inputs

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MC74VHCT259A 数据手册

MC74VHCT259A

8−Bit Addressable

Latch/1−of−8 Decoder

CMOS Logic Level Shifter

with LSTTL−Compatible Inputs

http://onsemi.com

MARKING

The MC74VHCT259 is an 8−bit Addressable Latch fabricated with

silicon gate CMOS technology. It achieves high speed operation

similar to equivalent Bipolar Schottky TTL while maintaining CMOS

low power dissipation.

DIAGRAMS

The internal circuit is composed of three stages, including a buffer

output which provides high noise immunity and stable output.

The VHC259 is designed for general purpose storage applications in

digital systems. The device has four modes of operation as shown in

the mode selection table. In the addressable latch mode, the signal on

Data In is written into the addressed latch. The addressed latch follows

the data input with all non−addressed latches remaining in their

previous states. In the memory mode, all latches remain in their

previous state and are unaffected by the Data or Address inputs. In the

one−of−eightdecoding or demultiplexing mode, the addressed output

follows the state of Data In with all other outputs in the LOW state. In

the Reset mode, all outputs are LOW and unaffected by the address

and data inputs. When operating the VHCT259 as an addressable

latch, changing more than one bit of the address could impose a

transient wrong address. Therefore, this should only be done while in

the memory mode.

SOIC−16

D SUFFIX

CASE 751B

VHCT259AG

AWLYWW

VHCT

259A

ALYWG

TSSOP−16

DT SUFFIX

CASE 948F

SOEIAJ−16

M SUFFIX

CASE 966

74VHCT259

ALYWG

The VHCT inputs are compatible with TTL levels. This device can

be used as a level converter for interfacing 3.3 V to 5.0 V because it

has full 5.0 V CMOS level output swings.

The VHCT259A input structures provide protection when voltages

between 0 V and 5.5 V are applied, regardless of the supply voltage.

WL, L

= Assembly Location

= Wafer Lot

= Year

The output structures also provide protection when V = 0 V. These

WW, W = Work Week

input and output structures help prevent device destruction caused by

supply voltage−input/output voltage mismatch, battery backup, hot

insertion, etc.

G or G

= Pb−Free Package

(Note: Microdot may be in either location)

Features

ORDERING INFORMATION

• High Speed: t = 7.6 ns (Typ) at V = 5.0 V

See detailed ordering and shipping information in the package

dimensions section on page 7 of this data sheet.

• Low Power Dissipation: I = 2 mA (Max) at T = 25°C

• TTL−Compatible Inputs: V = 0.8 V; V = 2.0 V

• Power Down Protection Provided on Inputs and Outputs

• Pin and Function Compatible with Other Standard Logic Families

• Latchup Performance Exceeds 300 mA

• ESD Performance: HBM > 2000 V

• Pb−Free Packages are Available*

*For additional information on our Pb−Free strategy and soldering details, please

download the ON Semiconductor Soldering and Mounting Techniques

Reference Manual, SOLDERRM/D.

Semiconductor Components Industries, LLC, 2006

Publication Order Number:

January, 2006 − Rev. 4

MC74VHCT259A/D

12 3 4 5 6 7...9

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与MC74VHCT259A相关器件

型号	品牌	获取价格	描述	数据表
MC74VHCT259AD	ONSEMI	获取价格	8−Bit Addressable Latch/1−of−8 Decoder CMOS Logic Level Shifter with LST
MC74VHCT259ADG	ONSEMI	获取价格	8−Bit Addressable Latch/1−of−8 Decoder CMOS Logic Level Shifter with LST
MC74VHCT259ADR2	ONSEMI	获取价格	8−Bit Addressable Latch/1−of−8 Decoder CMOS Logic Level Shifter with LST
MC74VHCT259ADR2G	ONSEMI	获取价格	8−Bit Addressable Latch/1−of−8 Decoder CMOS Logic Level Shifter with LST
MC74VHCT259ADT	ONSEMI	获取价格	8−Bit Addressable Latch/1−of−8 Decoder CMOS Logic Level Shifter with LST
MC74VHCT259ADTEL	ONSEMI	获取价格	IC AHCT/VHCT SERIES, OTHER DECODER/DRIVER, TRUE OUTPUT, PDSO16, TSSOP-16, Decoder/Driver
MC74VHCT259ADTG	ONSEMI	获取价格	8−Bit Addressable Latch/1−of−8 Decoder CMOS Logic Level Shifter with LST
MC74VHCT259ADTR2	ONSEMI	获取价格	8−Bit Addressable Latch/1−of−8 Decoder CMOS Logic Level Shifter with LST
MC74VHCT259ADTRG	ONSEMI	获取价格	8−Bit Addressable Latch/1−of−8 Decoder CMOS Logic Level Shifter with LST
MC74VHCT259AM	ONSEMI	获取价格	8−Bit Addressable Latch/1−of−8 Decoder CMOS Logic Level Shifter with LST

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