LSI

LS6103

Version 0.1 (29.6.00)

3

Chronograph Mode

In Time Mode, press KMODE 2 times to go to Chronograph Mode. The sport timer counts up to 99

minutes 59.99 second with 1/100 second and Lap time function.

It is operated as follows:

Press KADJ to start/stop the timer.

If the timer is started, press KSET to have the Lap time.

If the timer is stopped, press KSET to reset the timer to 00:00 00.

EL Output

The EL driver output is controlled by KEL.

When KEL is connected to VDD, the EL driver is

enabled.

The EL delay is around 3 – 4 second. The EL pump frequency is 32kHz (1/2 duty cycle) at

512hz(1/2 duty cycle).

Pin Assignment

DESIGNATION

TYPE

DESCRIPTION

B [0:1]

OUTPUT

Buzzer output

VC1, VC2

OUTPUT

Halfer output

VEE

OUTPUT

Halfer voltage

T2, T1

INPUT (PL)

TEST pin

OO

OUTPUT

oscillator output

OI

INPUT

oscillator input

VDD

POWER

+3.0V power supply

GND

POWER

Ground

KSET,KMODE,

KADJ

INPUT(PL)

Input Key

KEL

INPUT(PL)

Input Key

R[0:1]

OUTPUT

Output /EL output

C[1:4]

OUTPUT

LCD Common output

S[1:28]

OUTPUT

LCD Segment output

Note: (PL) – pull low

(PH) - pull high

Absolute Maximum Ratings

Supply voltage Vdd - Vss..........................0 to 5V

Input voltage Vin.................................Vss to Vdd

Operating temperature Top .............-10°C to 60°C

Storing temperature Tst ...................-40°C to 70°C

Comments

Stress above those listed under absolute Maximum Ratings”

may cause permanent damage

to the device.

These are stress rating only.

Functional operation of this device at these or any

other conditions above those indicated in the operational sections of this specification is not implied

and exposure to absolute maximum rating conditions for extended periods may affect device

reliability.