HT1350 데이터 시트보기 (PDF) - Holtek Semiconductor

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HT1350

Step Counter

Holtek Semiconductor 

HT1350

Step Counter

Features

· Operating voltage: 1.5V

· Auto walking or jogging detection

· Step number/mileage/kilometer/calorie

display

· LCD display

General Description

The HT1350 is a step counter IC implemented

in the CMOS technology. It provides an LCD

with a whole course (kilometer/mile) as well as

the consumed calorie display.

The HT1350 consists of internal oscillator cir-

cuit, a step number/kilometer/mile/calorie step

· An oscillator with 32kHz

· Few external components

· Low power consumption

· An LCD with 1/3 duty, 1/2 bias

counter, a voltage doubler, and an LCD display

multiplexer.

The IC can automatically distinguish walking

from jogging, thus making appropriate calcula-

tions.

Block Diagram

VDD VSS

O SC1

O SC2

O s c illa to r

P r e s c a le r

TEST1

TEST2

TEST3

RESET

STEP

S te p P u ls e

G e n e ra to r

S te p

C o u n te r

M ile

C o u n te r

Km

C o u n te r

C a le s

C o u n te r

W A L K /R U N

A U T O /M A N U

M ODE

A u to -D e te c t

C ir c u it

( J o g /W a lk )

M u ltip le x e r C ir c u it

M ode

S w itc h

L e v e l S h ift

C ir c u it

C P1 C P2 C P3 C O M 1 C O M 2 C O M 3 O U T4

O U T17

1

June 28, 1999

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