HCF40147B データシートの表示（PDF） - STMicroelectronics

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HCF40147B

10 TO 4 LINE BCD PRIORITY ENCODER

STMicroelectronics 

HCF40147B

10 TO 4 LINE BCD PRIORITY ENCODER

s ENCODES 10 LINE TO 4 LINE BCD

s ACTIVE LOW INPUTS AND OUTPUTS

s STANDARDIZED, SYMMETRICAL OUTPUT

CHARACTERIZATION

s QUIESCENT CURRENT SPECIFIED UP TO

20V

s 5V, 10V AND 15V PARAMETRIC RATINGS

s MAXIMUM INPUT CURRENT OF 1 µA AT

18V OVER FULL PACKAGE TEMPERATURE

RANGE; 100 nA AT 18 V AND 25°C

s NOISE MARGIN (FULL PACKAGE

TEMPERATURE RANGE): 1V AT VDD =5V,

2V AT VDD =10V, 2.5V AT VDD = 15V

s INPUT LEAKAGE CURRENT

II = 100nA (MAX) AT VDD = 18V TA = 25°C

s 100% TESTED FOR QUIESCENT CURRENT

s MEETS ALL REQUIREMENTS OF JEDEC

JESD13B "STANDARD SPECIFICATIONS

FOR DESCRIPTION OF B SERIES CMOS

DEVICES"

DESCRIPTION

HCF40147B is a monolithic integrated circuit

fabricated in Metal Oxide Semiconductor

technology available in DIP and SOP packages.

HCF40147B, encoder CMOS, features priority

encoding of the inputs to ensure that only the

DIP

SOP

ORDER CODES

PACKAGE

TUBE

DIP

SOP

HCF40147BEY

HCF40147BM1

T&R

HCF40147M013TR

highest order data line is encoded. Ten data input

lines (0-9) are encoded to four line (8, 4, 2, 1)

BCDs. The highest priority line is line 9. All four

output lines are logic "1" (VSS) when all input lines

are logic "0". All inputs and outputs are buffered,

and each output can drive one TTL Low Power

Schottky load. HCF40147B is functionally similar

to the T54/T74LS147 if pin 15 is tied low.

HCF40147B is supplied in 16-lead plastic or

ceramic and plastic micropackages.

PIN CONNECTION

September 2002

1/8

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