MC14549

更新时间： 2024-11-06 22:58:11

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
12页	89K
描述
Successive Approximation Registers

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MC14549 数据手册

MC14549B, MC14559B

Successive Approximation

Registers

The MC14549B and MC14559B successive approximation

registers are 8–bit registers providing all the digital control and storage

necessary for successive approximation analog–to–digital conversion

systems. These parts differ in only one control input. The Master Reset

(MR) on the MC14549B is required in the cascaded mode when more

than 8 bits are desired. The Feed Forward (FF) of the MC14559B is

used for register shortening where End–of–Conversion (EOC) is

required after less than eight cycles.

http://onsemi.com

MARKING

DIAGRAMS

Applications for the MC14549B and MC14559B include

analog–to–digital conversion, with serial and parallel outputs.

PDIP–16

P SUFFIX

CASE 648

MC145xxBCP

AWLYYWW

• Totally Synchronous Operation

• All Outputs Buffered

• Single Supply Operation

• Serial Output

• Retriggerable

• Compatible with a Variety of Digital and Analog Systems such as the

MC1408 8–Bit D/A Converter

145xxB

SOIC–16

DW SUFFIX

CASE 751G

• All Control Inputs Positive–Edge Triggered

AWLYYWW

• Supply Voltage Range = 3.0 Vdc to 18 Vdc

• Capable of Driving 2 Low–Power TTL Loads, 1 Low–Power Schottky

TTL Load or 2 HTL Loads Over the Rated Temperature Range

• Chip Complexity: 488 FETs or 122 Equivalent Gates

WL, L

YY, Y

= Specific Device Code

= Assembly Location

= Wafer Lot

= Year

WW, W = Work Week

MAXIMUM RATINGS (Voltages Referenced to V ) (Note 1.)

Symbol

Parameter

Value

Unit

DC Supply Voltage Range

Input Voltage Range, All Inputs

DC Input Current, per Pin

–0.5 to +18.0

ORDERING INFORMATION

–0.5 to V + 0.5

Device

Package

Shipping

25/Rail

±10

Power Dissipation,

500

MC14549BCP

PDIP–16

per Package (Note 2.)

MC14549BDWR2

MC14559BCP

SOIC–16 1000/Tape & Reel

PDIP–16 25/Rail

Operating Temperature Range

Storage Temperature Range

–55 to +125

–65 to +150

°C

stg

MC14559BDWR2

SOIC–16 1000/Tape & Reel

1. Maximum Ratings are those values beyond which damage to the device

may occur.

2. Temperature Derating:

Plastic “P and D/DW” Packages: – 7.0 mW/_C From 65_C To 125_C

This device contains protection circuitry to guard against damage due to high

static voltages or electric fields. However, precautions must be taken to avoid

applications of any voltage higher than maximum rated voltages to this

high–impedance circuit. For proper operation, V and V should be constrained

out

to the range V v (V or V ) v V

out

Unused inputs must always be tied to an appropriate logic voltage level (e.g.,

either V or V ).

Semiconductor Components Industries, LLC, 2000

Publication Order Number:

August, 2000 – Rev. 4

MC14549B/D

12 3 4 5 6 7...12

中文翻译

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与MC14549相关器件

型号	品牌	获取价格	描述	数据表
MC14549B	ONSEMI	获取价格	Successive Approximation Registers
MC14549B	MOTOROLA	获取价格	SUCCESSIVE APPROXIMATION REGISTERS
MC14549B_06	ONSEMI	获取价格	Successive Approximation Registers
MC14549BALD	MOTOROLA	获取价格	暂无描述
MC14549BALDS	MOTOROLA	获取价格	SPECIALTY LOGIC CIRCUIT, CDIP16, 620-09
MC14549BCL	MOTOROLA	获取价格	SUCCESSIVE APPROXIMATION REGISTERS
MC14549BCLD	MOTOROLA	获取价格	SPECIALTY LOGIC CIRCUIT, CDIP16, 620-09
MC14549BCLDS	MOTOROLA	获取价格	Logic Circuit, CMOS, CDIP16, 620-09
MC14549BCLS	MOTOROLA	获取价格	暂无描述
MC14549BCP	ONSEMI	获取价格	Successive Approximation Registers

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