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HT1350 Datasheet

  • HT1350

  • Step Counter

  • 86.51KB

  • 6頁(yè)

  • HOLTEK

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HT1350
Step Counter
Features
Operating voltage: 1.5V
Auto walking or jogging detection
Step number/mileage/kilometer/calorie
display
LCD display
An oscillator with 32kHz
Few external components
Low power consumption
An LCD with 1/3 duty, 1/2 bias
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
counter, a voltage doubler, and an LCD display
multiplexer.
The IC can automatically distinguish walking
from jogging, thus making appropriate calcula-
tions.
Block Diagram
V D D
O S C 1
O S C 2
V S S
O s c illa to r
T E S T 1
T E S T 2
T E S T 3
R E S E T
P r e s c a le r
S T E P
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
K m
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
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 O D E
M o d e
S w itc h
L e v e l S h ift
C ir c u it
C P 1
C P 2
C P 3
C O M 1
C O M 2
C O M 3
O U T 4
O U T 1 7
1
June 28, 1999

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