IZ7010
1
C
IRCUIT FOR ELECTRON PEDOMETER
-
ERGOMETER
DESCRIPTION
The chip is a silicon-gate CMOS LSIs for electron pedometer-ergometer with
function watch and alarm. Its provides count and indication of steps, calories, kilometers
during current day and night and summing up at changing 24 hours, steps , calories,
kilometers with values stored previous ( mode TOTAL DATA ). Length of steps setting
from 25 to 95 centimeters. Frequency of registered pulses from external sensor at
counting steps is no more than 6Hz at duration of time between the end of previous and
beginning of counted pulse no less than 100 ms. Counting steps to 999999.
FEATURES
One-chip CMOS constructions
Single 1.5V battery operation
Imbed in chip element of quartz generator
with operating frequency of 32768 Hz,
capacity, resistor, and voltage doubler
Built-in LCD driver for control of 7-digit
LCD in the mode of two level multiplexing
with the mode marks "STEPS", "km",
"CL", "CEFF", "L STEP", "ALARM",
"TODAY", "TOTAL", divided by colons
and dots.
Operation from one battery with the
voltage of 1.5V, low consumption power;
Availability of circuits of contacts bracing
suppression on buttons inputs;
Frequency of registered pulses from
external sensor at counting steps is no
more than 6Hz at duration of time
between the end of previous and
beginning of counted pulse no less than
100 ms;
Conversion of quantity of steps into
calories , kilometers
FUNCTIONS
5 functions for counting time and
calendar with indication of hours,
minutes, seconds, month, date ;
Alarm clock;
Count the quantity of steps by means
of evaluation and counting pulses
from external sensor ;
count and indication of steps, calories,
kilometers during current day and
night (mode DATA OF THE
CURRENT DAY");
Conversion of made steps into
calories with consideration of the user
coefficient with consideration of
height, weight and male/female
identification;
summation up at changing 24 hours,
steps , calories, kilometers with
values stored previous ( mode
TOTAL DATA).
ABSOLUTE MAXIMUM RATINGS ( T
a
= 25
o
C )
Characteristic Symbol
Value
Unit
Supply Voltage
U
CC1
- 0.3 ~ + 2.0
V
Operating Temperature
T
por
- 0 ~ + 70
o
C
Storage Temperature
T
stg
- 55 ~ + 125
o
C
IZ7010
4
Description of contact pads
pad
Symbol Description
pad
Symbol Description
01
S3
control input
25
SEG8
LCD sign electrode control output
02
S2
control input
26
SEG9
LCD sign electrode control output
03
BD
Sound converter control outlet
27
SEG10
LCD sign electrode control output
04
NC
is not used
28
SEG11
LCD sign electrode control output
05 U
CC1
Output of primary supply voltage
from voltage source
29
SEG12
LCD sign electrode control output
06 U
CC2
pin of secondary supply voltage
30
SEG13
LCD sign electrode control output
07
NC
is not used
31
SEG14
LCD sign electrode control output
08
NC
is not used
32
SEG15
LCD sign electrode control output
09
GND
general output
33
SEG16
LCD sign electrode control output
10 CAP1 output of connecting of voltage
converter capacity
34
SEG17
LCD sign electrode control output
11 CAP2 output of connecting of voltage
converter capacity
35
SEG18
LCD sign electrode control output
12 OSCO output for connection of quartz
resonator
36
SEG19
LCD sign electrode control output
13 OSCI input for connection of quartz
resonator
37
SEG20
LCD sign electrode control output
14
TST
is not used
38
SEG21
LCD sign electrode control output
15
S1
control input
39
SEG22
LCD sign electrode control output
16
S4
count input (COUNT)
40
SEG23
LCD sign electrode control output
17 COM1 LCD general electrode control
output
41
SEG24
LCD sign electrode control output
18 SEG1 LCD sign electrode control
output
42
SEG25
LCD sign electrode control output
19 SEG2 LCD sign electrode control
output
43
SEG26
LCD sign electrode control output
20 SEG3 LCD sign electrode control
output
44
SEG27
LCD sign electrode control output
21 SEG4 LCD sign electrode control
output
45
SEG28
LCD sign electrode control output
22 SEG5 LCD sign electrode control
output
46
SEG29
LCD sign electrode control output
23 SEG6 LCD sign electrode control
output
47
NC
is not used
24 SEG7 LCD sign electrode control
output
48
COM2
LCD General electrode control Output
Abbreviations
LCD - liquid crystal display
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