Datasheet > CD4532BFMSR

CD4532BFMSR

更新时间： 2024-09-28 04:24:23

品牌	Logo	应用领域
瑞萨 - RENESAS		编码器
页数	文件大小	规格书
9页	89K
描述
4000/14000/40000 SERIES, 8-BIT ENCODER, CDIP16

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数据手册

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CD4532BFMSR 数据手册

CD4532BMS

CMOS 8-Bit Priority Encoder

December 1992

Features

Pinout

CD4532BMS

TOP VIEW

• High Voltage Type (20V Rating)

• Converts From 1 of 8 to Binary

• Provides Cascading Feature to Handle Any Number of

Inputs

16 VDD

15 E0

14 GS

13 D3

12 D2

11 D1

10 D0

• Group Select Indicates One or More Priority Inputs

• Standardized Symmetrical Output Characteristics

• 100% Tested for Quiescent Current at 20V

VSS

• Maximum Input Current of 1µA at 18V Over Full Pack-

age Temperature Range; 100nA at 18V and +25^oC

• Noise Margin (Over Full Package/Temperature Range)

- 0.5V at VDD = 5V

- 1.5V at VDD = 10V

- 1.5V at VDD = 15V

Functional Diagram

• 5V, 10V and 15V Parametric Ratings

• Meets All Requirements of JEDEC Tentative Standard

No. 13B, “Standard Speciﬁcations for Description of

‘B’ Series CMOS Devices”

PRIORITY

SELECT

ENCODER

Applications

• Priority Encoder

• Binary or BCD Encoder (Keyboard Encoding)

• Floating Point Arithmetic

Description

CD4532BMS consists of combinational logic that encodes

the highest priority input (D7 - D0) to a 3-bit binary code. The

eight inputs, D7 through D0, each have an assigned priority;

D7 is the highest priority and D0 is the lowest. The priority

encoder is inhibited when the chip-enable input E1 is low.

When E1 is high, the binary representation of the highest-

priority input appears on output lines Q2 - Q0, and the group

select line GS is high to indicate that priority inputs are

present. The enable-out (EO) is high when no priority inputs

are present. If any one input is high, EO is low and all cas-

caded lower-order stages are disabled.

The CD4532BMS is supplied in these 16-lead outline packages:

Braze Seal DIP

Frit Seal DIP

Ceramic Flatpack

H4T

H1E

H6W

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

File Number 3344

7-1227

12 3 4 5 6 7...9

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