TC14433-ESLASHOG datasheet(7/24 Pages) MICROCHIP

Il numero della parte	TC14433-E/OG

Spiegazioni elettronici	3-1/2 Digit, Analog-to-Digital Converter

PDF	24 Pages

Scroll/Zoom	100%

Produttore elettronici	MICROCHIP [Microchip Technology]

Homepage	http://www.microchip.com

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7 / 24 page

DS21394D-page 7

TC14433/A

DS4

Digit select pin. The digit select output goes high when the respective digit is

selected. The MSD (1/2 digit turns on immediately after an EOC pulse).

DS3

The remaining digits turn on in sequence from MSD to LSD.

DS2

To ensure that the BCD data has settled, an inter digit blanking time of two

clock periods is included.

DS1

Clock frequency divided by 80 equals multiplex rate. For example, a system

clock of 60 kHz gives a multiplex rate of 0.8 kHz.

See Figure 5-4 for digit select timing diagram.

BCD data output pin. Multiplexed BCD outputs contain three full digits of

information during digit select DS2, DS3, DS4.

During DS1, the 1/2 digit, overrange, underrange and polarity information is

available.

Refer to the Truth Table 5-1.

VDD

Positive power supply. This is the most positive power supply pin.

—

Not Used.

—

Not Used.

—

Not Used.

—

Not Used.

TABLE 3-1:

PIN FUNCTION TABLE (CONTINUED)

Pin No.

24-Pin PDIP,

SOIC

Pin No.

28-Pin

PLCC

Symbol

Description

TC14433-E/OG Scheda tecnica(PDF) 7 Page - Microchip Technology